` public struct-literal construction behind `Strand::new(...)` plus read-only accessors\n- validate retained posture and typestate/runtime posture coherence before constructing typed strands\n- replace proof validation strings with structured `ProofError`\n- replace braid invalid-transition action strings with `BraidTransitionKind`\n- thread typed proof errors through `BraidShellError::ProofShapeValidationFailed`\n- update public API tests, strand fixture builders, changelog, and the roadmap checklist\n\n## Why\n\nPR #545 made strands and braids law-bearing surfaces, but `Strand

` still looked forgeable through public fields and proof/braid failures still exposed behavioral facts through strings. This PR closes the first hardening goalpost: law-bearing strand values are admitted through named construction, and callers can branch on typed failure variants without parsing display text.\n\nRuntime and registry checks remain authoritative. Typestate is only the guardrail.\n\n## Red / Green witnesses\n\nRED before implementation:\n\n- `cargo test -p warp-core --test braid_public_api_tests`\n- `cargo test -p warp-core --test strand_contract_tests strand_constructor_rejects_static_runtime_posture_mismatch`\n\nGREEN after implementation:\n\n- `cargo test -p warp-core --lib` — 560/560\n- `cargo test -p warp-core --test braid_public_api_tests` — 3/3\n- `cargo test -p warp-core --test strand_contract_tests` — 29/29\n- `cargo test -p warp-core --doc` — includes the new public `Strand` compile-fail witness\n- `cargo clippy -p warp-core --lib -- -D warnings`\n- `cargo fmt --all -- --check`\n- `git diff --check`\n- `scripts/check_spdx.sh`\n- `pnpm exec markdownlint-cli2 CHANGELOG.md docs/design/braids-and-strands-roadmap.md docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\n- pre-commit and pre-push hooks\n\n\n\n## Summary by CodeRabbit\n\n* **New Features**\n * Structured error reporting for invalid state transitions with specific transition types and current status details.\n * Typed proof validation errors replacing generic error messages with specific failure categories.\n\n* **Improvements**\n * Strengthened data structure construction with enhanced invariant validation and better error reporting for violations.\n * Single-writer-head invariant enforcement across data structure initialization and registration.\n\n* **Documentation**\n * Completed roadmap milestone for lawful construction and typed failures.\n\n","base","head","base_sha","3d6fdba057491f6c802e0364a0043d5ebc6bb458","head_sha","merge_commit_sha","49c53278c551348b9ba00c60cf387e2d2cbc9549","comments","diff","user",{"_290":291,"_182":291,"_336":-5,"_294":295,"_42":292},"commits",4,"changed_files",12,"additions",692,"deletions",226,"email","events",[339,340,341,342,343,344,345,346,347,348,349,350,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440],{"_155":961,"_442":962},{"_155":457,"_442":956},{"_155":951,"_442":952},{"_155":461,"_442":943},{"_155":461,"_442":936},{"_155":461,"_442":931},{"_155":476,"_442":921},{"_155":476,"_442":916},{"_155":461,"_442":912},{"_155":461,"_442":909},{"_155":461,"_442":906},{"_155":476,"_442":888},{"_155":476,"_442":880},{"_155":461,"_442":876},{"_155":461,"_442":872},{"_155":476,"_442":867},{"_155":461,"_442":863},{"_155":461,"_442":860},{"_155":476,"_442":852},{"_155":461,"_442":848},{"_155":461,"_442":845},{"_155":476,"_442":837},{"_155":461,"_442":833},{"_155":476,"_442":828},{"_155":461,"_442":822},{"_155":461,"_442":819},{"_155":476,"_442":807},{"_155":461,"_442":803},{"_155":461,"_442":800},{"_155":461,"_442":797},{"_155":476,"_442":787},{"_155":476,"_442":782},{"_155":461,"_442":778},{"_155":461,"_442":775},{"_155":461,"_442":772},{"_155":476,"_442":764},{"_155":461,"_442":761},{"_155":461,"_442":757},{"_155":461,"_442":755},{"_155":461,"_442":751},{"_155":461,"_442":749},{"_155":461,"_442":745},{"_155":461,"_442":743},{"_155":461,"_442":739},{"_155":461,"_442":737},{"_155":461,"_442":733},{"_155":461,"_442":731},{"_155":461,"_442":727},{"_155":461,"_442":725},{"_155":461,"_442":721},{"_155":461,"_442":719},{"_155":461,"_442":715},{"_155":461,"_442":713},{"_155":461,"_442":709},{"_155":461,"_442":707},{"_155":461,"_442":703},{"_155":461,"_442":701},{"_155":461,"_442":697},{"_155":461,"_442":695},{"_155":461,"_442":691},{"_155":461,"_442":689},{"_155":461,"_442":685},{"_155":461,"_442":683},{"_155":461,"_442":679},{"_155":461,"_442":676},{"_155":461,"_442":672},{"_155":476,"_442":662},{"_155":476,"_442":657},{"_155":461,"_442":653},{"_155":461,"_442":650},{"_155":476,"_442":642},{"_155":461,"_442":638},{"_155":476,"_442":633},{"_155":461,"_442":627},{"_155":461,"_442":624},{"_155":461,"_442":621},{"_155":461,"_442":619},{"_155":461,"_442":615},{"_155":461,"_442":613},{"_155":461,"_442":609},{"_155":461,"_442":607},{"_155":461,"_442":603},{"_155":476,"_442":593},{"_155":461,"_442":589},{"_155":461,"_442":585},{"_155":476,"_442":580},{"_155":461,"_442":576},{"_155":461,"_442":573},{"_155":476,"_442":564},{"_155":461,"_442":560},{"_155":476,"_442":555},{"_155":461,"_442":545},{"_155":461,"_442":541},{"_155":476,"_442":520},{"_155":461,"_442":516},{"_155":461,"_442":510},{"_155":476,"_442":488},{"_155":461,"_442":481},{"_155":476,"_442":477},{"_155":461,"_442":462},{"_155":457,"_442":458},{"_155":441,"_442":443},"turn/completed","params",{"_444":445,"_88":446},"threadId","019eca9f-e789-7730-a58c-d99fe28dc7b5",{"_447":448,"_449":450,"_104":-5,"_42":451,"_452":453,"_454":455,"_456":114},"completedAt",1781516127,"durationMs",189165,"019eca9f-e870-7973-813a-2956dfd89c3f","items",[],"startedAt",1781515937,"status","thread/status/changed",{"_456":459,"_444":445},{"_93":460},"idle","rawResponseItem/completed",{"_463":464,"_444":445,"_465":451},"item",{"_466":467,"_468":-5,"_42":-5,"_469":-5,"_470":471,"_97":94,"_93":472},"turnId","content",[473],"end_turn","internal_chat_message_metadata_passthrough","phase","final_answer","message",{"_46":474,"_93":475},"### Summary\n* Clarified the public `Strand::new(...)` `# Errors` documentation so it explicitly states that v1 strands must contain exactly one writer head, matching the constructor’s enforced invariant. 【F:crates/warp-core/src/strand.rs†L239-L245】\n* Committed the change on the current branch with commit `a0745ff` (`docs(warp-core): clarify strand writer-head constructor errors`).\n* Created a PR titled **“Clarify strand constructor writer-head error docs”**.\n\n**Testing**\n* ✅ `cargo test -p warp-core --doc`\n* ✅ `cargo check -p warp-core`\n* ✅ `git diff --check`\n\nNote: `pnpm-lock.yaml` had pre-existing unstaged local changes and was not touched or included in the commit.","output_text","item/completed",{"_463":478,"_444":445,"_465":451},{"_42":479,"_470":471,"_46":474,"_93":480},"msg_0219c042e5b77a1a016a2fc75bfa5c819493db797e8949b6af","agentMessage",{"_463":482,"_444":445,"_465":451},{"_483":484,"_42":-5,"_469":-5,"_485":486,"_93":487},"call_id","call_V6nlHbWo3Po7TtvNPcoA1Se3","output","Wall time: 0.0097 seconds\nOutput:\n{\"title\":\"Clarify strand constructor writer-head error docs\",\"body\":\"## Summary\\n\\n- Update `Strand::new(...)` error docs to explicitly mention the v1 exactly-one-writer-head invariant.\\n- Leave the existing constructor and registry validation behavior unchanged.\\n\\n## Validation\\n\\n- `cargo test -p warp-core --doc`\\n- `cargo check -p warp-core`\\n- `git diff --check`\\n\\n## Notes\\n\\n- `pnpm-lock.yaml` had pre-existing unstaged local changes and was not included in this commit.\"}","function_call_output",{"_463":489,"_444":445,"_465":451},{"_490":-5,"_491":492,"_449":493,"_104":-5,"_42":484,"_494":-5,"_495":-5,"_496":497,"_498":499,"_456":114,"_500":499,"_93":501},"appContext","arguments",{"_313":506,"_315":507},9,"mcpAppResourceUri","pluginId","result",{"_502":-5,"_466":503,"_504":505},"server","make_pr","tool","mcpToolCall","_meta",[508],"structuredContent",{"_313":506,"_315":507},"Clarify strand constructor writer-head error docs","## Summary\n\n- Update `Strand::new(...)` error docs to explicitly mention the v1 exactly-one-writer-head invariant.\n- Leave the existing constructor and registry validation behavior unchanged.\n\n## Validation\n\n- `cargo test -p warp-core --doc`\n- `cargo check -p warp-core`\n- `git diff --check`\n\n## Notes\n\n- `pnpm-lock.yaml` had pre-existing unstaged local changes and was not included in this commit.",{"_93":46,"_46":509},"{\n \"title\": \"Clarify strand constructor writer-head error docs\",\n \"body\": \"## Summary\\n\\n- Update `Strand::new(...)` error docs to explicitly mention the v1 exactly-one-writer-head invariant.\\n- Leave the existing constructor and registry validation behavior unchanged.\\n\\n## Validation\\n\\n- `cargo test -p warp-core --doc`\\n- `cargo check -p warp-core`\\n- `git diff --check`\\n\\n## Notes\\n\\n- `pnpm-lock.yaml` had pre-existing unstaged local changes and was not included in this commit.\"\n}",{"_463":511,"_444":445,"_465":451},{"_491":512,"_483":484,"_42":-5,"_469":-5,"_182":499,"_513":514,"_93":515},"{\"title\":\"Clarify strand constructor writer-head error docs\",\"body\":\"## Summary\\n\\n- Update `Strand::new(...)` error docs to explicitly mention the v1 exactly-one-writer-head invariant.\\n- Leave the existing constructor and registry validation behavior unchanged.\\n\\n## Validation\\n\\n- `cargo test -p warp-core --doc`\\n- `cargo check -p warp-core`\\n- `git diff --check`\\n\\n## Notes\\n\\n- `pnpm-lock.yaml` had pre-existing unstaged local changes and was not included in this commit.\"}","namespace","mcp__make_pr__","function_call",{"_463":517,"_444":445,"_465":451},{"_483":518,"_42":-5,"_469":-5,"_485":519,"_93":487},"call_sTPkbN1Ns8smNSdtczoeXm3K","Chunk ID: 5b7ae5\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 179\nOutput:\n 236\t /// [`StrandRegistry`] remains responsible for registry-relative admission\n 237\t /// checks such as support target liveness.\n 238\t ///\n 239\t /// # Errors\n 240\t ///\n 241\t /// Returns [`StrandError`] when the retained posture is incoherent, the\n 242\t /// static posture marker disagrees with runtime posture, the child and\n 243\t /// source worldlines are the same, the v1 writer-head set does not contain\n 244\t /// exactly one head, that writer head targets the wrong child worldline, or\n 245\t /// support pins are self-targeted or duplicate one another.\n 246\t pub fn new(\n 247\t strand_id: StrandId,\n 248\t fork_basis_ref: ForkBasisRef,\n",{"_463":521,"_444":445,"_465":451},{"_522":523,"_524":525,"_526":527,"_528":529,"_449":32,"_530":32,"_42":518,"_531":532,"_533":534,"_456":114,"_93":535},"aggregatedOutput"," 236\t /// [`StrandRegistry`] remains responsible for registry-relative admission\n 237\t /// checks such as support target liveness.\n 238\t ///\n 239\t /// # Errors\n 240\t ///\n 241\t /// Returns [`StrandError`] when the retained posture is incoherent, the\n 242\t /// static posture marker disagrees with runtime posture, the child and\n 243\t /// source worldlines are the same, the v1 writer-head set does not contain\n 244\t /// exactly one head, that writer head targets the wrong child worldline, or\n 245\t /// support pins are self-targeted or duplicate one another.\n 246\t pub fn new(\n 247\t strand_id: StrandId,\n 248\t fork_basis_ref: ForkBasisRef,\n","command","/bin/bash -lc \"nl -ba crates/warp-core/src/strand.rs | sed -n '236,248p'\"","commandActions",[536],"cwd","/workspace/echo","exitCode","processId","27334","source","unifiedExecStartup","commandExecution",{"_524":537,"_182":538,"_162":539,"_93":540},"nl -ba crates/warp-core/src/strand.rs | sed -n '236,248p'","strand.rs","/workspace/echo/crates/warp-core/src/strand.rs","read",{"_463":542,"_444":445,"_465":451},{"_491":543,"_483":518,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"nl -ba crates/warp-core/src/strand.rs | sed -n '236,248p'\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":2000}","exec_command",{"_463":546,"_444":445,"_465":451},{"_466":-5,"_547":548,"_42":-5,"_469":-5,"_549":550,"_93":551},"encrypted_content","gAAAAABqL8dU58xIhXHgZFAkS_aYA1Q5PGzxv348q4DTHXWOCDwsfKPSL0_0h0cEY8pt9N5iFZMRdLPdIw8JyG6ahHzzpPte-uGQiQ_n7iw784yB_MamkU02QGxpnJlMJI26ZFViTubzQNm6nLYwnQpies79akEEAEQhAaEVPTuQD1ac2y9lp_q-3DWuc58goQ6euYCPDFZpEybZSQB8Ayo1FJGloSqk2knSXUZjxujXEDwMZsMSAYNUEg9kLKIGqc2ZH_fkCcf_N_BbSLiXc1RP91JzayfpqU65nyhj37oBHKzdkYWXyiFRubz9UzcyKSKpI_ul0l1BnVX0v1svY90erO_3cGXRev4jz-SsAK6gdlRZBvw3VzMiPuwo-mmU3dmOtGp74q-r7F2bPC1z2NcHclbvwD9q9D0KbhZD-8_atFaJ2XyBzauSxYW8x5WttBDldAfeBC0Hf9YoWfKx4Q0ZLtOcJct28de1XMqjyNHV3N2iidYxN8Pj17sg-8iFbqMwUpNpdQw2x0jHggPlatD-RpTozwcSPMQgejIRH0gRg1YkE0NORP0mjaw1NUb_IK67wH3LFtv1KSUPySbYNLKftpojDOyPVxIXYPJwGvglWLZDGkjGAkf1ox0RwCIkphg8avNZRq2WjMBB0TOEFbGKm2xuDqAMj5IkSRAlEn8NpcX8DfxbcSvMdHQBAV_ikmom-mhIIXqK0v5JbW9SHdb680qiKSreOqGYX9wWYheFS2rCbTUdqFMEW5fb0g9PmbEJUbE9Ra3ggMGFqtf9rPZg8ZIzZQ0-EVYlYSbdgsJavU2x1aRzZyhwlGk86O5HYgTq9HemOOsKsHTHLBFJM8FR1fRMd_brZrI9i9EXCj9XO-dz_PT15_9bwAfUTzpBCMY0KM-yh6Wy2BFOPH3Xd0VZ2c6Guluo21kqd5ICtUqrVZAw3Yhwoun1slucJaAZipQBNlI2FnvoYdyQdA9UAX6dFbdZpqLoDA==","summary",[552],"reasoning",{"_46":553,"_93":554},"**Getting organized for coding**\n\nI need to create a pull request right now, but I also want to make sure I'm getting the line numbers correctly. It’s interesting how managing both tasks can feel a bit overwhelming, but I’ll try to focus on one step at a time. First, I’ll gather the necessary information for the pull request, and then I’ll look into the line numbers. Keeping things organized is key!","summary_text",{"_463":556,"_444":445,"_465":451},{"_466":557,"_42":558,"_549":559,"_93":551},[],"rs_0219c042e5b77a1a016a2fc7520cb881949f591db76b7350df",[553],{"_463":561,"_444":445,"_465":451},{"_483":562,"_42":-5,"_469":-5,"_485":563,"_93":487},"call_YUbtpxckbAO9YxOLJ3mT12er","Chunk ID: 920b59\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 37\nOutput:\n[work a0745ff] docs(warp-core): clarify strand writer-head constructor errors\n 1 file changed, 3 insertions(+), 2 deletions(-)\n M pnpm-lock.yaml\n",{"_463":565,"_444":445,"_465":451},{"_522":566,"_524":567,"_526":568,"_528":529,"_449":32,"_530":32,"_42":562,"_531":569,"_533":534,"_456":114,"_93":535},"[work a0745ff] docs(warp-core): clarify strand writer-head constructor errors\n 1 file changed, 3 insertions(+), 2 deletions(-)\n M pnpm-lock.yaml\n","/bin/bash -lc 'git add crates/warp-core/src/strand.rs && git commit -m \"docs(warp-core): clarify strand writer-head constructor errors\" && git status --short'",[570],"71867",{"_524":571,"_93":572},"git add crates/warp-core/src/strand.rs && git commit -m \"docs(warp-core): clarify strand writer-head constructor errors\" && git status --short","unknown",{"_463":574,"_444":445,"_465":451},{"_491":575,"_483":562,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"git add crates/warp-core/src/strand.rs && git commit -m \\\"docs(warp-core): clarify strand writer-head constructor errors\\\" && git status --short\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":4000}",{"_463":577,"_444":445,"_465":451},{"_466":-5,"_547":578,"_42":-5,"_469":-5,"_549":579,"_93":551},"gAAAAABqL8dOE7gbyLcfBBKbFubFIYHJyYGyeOV5mIHEGLsjrPU103G9sA1Ic8MvT3PTlYB_ort9232HgdTQIo-lAN7vK_suF5sEoC6zQhOXxjXgSx_KGMyhXpo011nkDHoT8aSFweOeYyc8NhQod-O3bbdsMKAsfSz58yeyzd3wa9WrAg4y5aG60ZFVkBI5XZViqbJRFTisDxgoTZxnDTIrMHu9YXg_VczF-S47E-qJCy87LWVM-8Tzo9u5ujYmBCAc4QyhZT1TdJ0IUvgkl41IGY08bJmiDeG8TV9ebnnn_f-LwrrOLxKG6dfoWR1xp40qFFmugy1cy9ABYPUGOPp53zlvRmk8ADXx0t34bCzT_TQzfUFnQZUD6IXcR_ocyzQ0M5Xj0NNGKkC7xONcg7DW_au5XtgVg3ZlWfkhMHOpOTT8WSjWZwDTAFdZOZ39F1ShwnhurtJo0cui2KQHJVPgYM7iXQ4lvRYjNoi6fNnzF-xN0g9XfJ3x_GA6qFL6zSQz75RYj2zsm-lYCugN7PniXH93cCHDXwajE-ha3Wky8yXqjYI70uxnrhyTQlXcg7HYtIvu_in2gG8AxFJC21nbUb8vV92QBgJX_tceNX5rFMKQ8uA5NqkcGmtlRV8-WHuwwEHBJ9URh3b9bxPJVYtq37MO-zNSMnH98c6BE7BthDOSsrYp5dhierjjO9C3ax3zFCtR8vqdiEbI7CvvOuHIrylCkVK_cTQaQLYro5FihKAmWW2Zfal31sOzGGCMGeLoham69bGhsr_N32Cw3Dm3bo4a7xgplSgAIire5LjbNqIJpXlAueXKMR2l98BgADkZgm6r8wSnY38jIDoS--uXuLl559K_L42968cg4d_0XVwRhli-2WFYGF-b2z5aBbv-ji4IXHue7qU5CiIYYo0wiq3htfPhjGVImPXM6FldoYNSBH71XjU=",[],{"_463":581,"_444":445,"_465":451},{"_466":582,"_42":583,"_549":584,"_93":551},[],"rs_0219c042e5b77a1a016a2fc74e23bc8194862127c8ddcd7ce4",[],{"_463":586,"_444":445,"_465":451},{"_483":587,"_42":-5,"_469":-5,"_485":588,"_93":487},"call_kpbQucGK0YSpitEbwrMaNs6m","Chunk ID: b1187b\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 19\nOutput:\n Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.84s\n",{"_463":590,"_444":445,"_465":451},{"_491":591,"_483":587,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},"{\"session_id\":31264,\"chars\":\"\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}","write_stdin",{"_463":594,"_444":445,"_465":451},{"_522":595,"_524":596,"_526":597,"_528":529,"_449":598,"_530":32,"_42":599,"_531":600,"_533":534,"_456":114,"_93":535}," Checking cfg-if v1.0.4\n Checking serde_core v1.0.228\n Checking zerocopy v0.8.31\n Checking num-traits v0.2.19\n Checking serde v1.0.228\n Checking half v2.7.1\n Checking ciborium-io v0.2.2\n Compiling arrayvec v0.7.6\n Compiling constant_time_eq v0.3.1\n Compiling arrayref v0.3.9\n Checking ciborium-ll v0.2.2\n Compiling blake3 v1.8.2\n Checking ordered-float v2.10.1\n Compiling warp-core v0.1.1 (/workspace/echo/crates/warp-core)\n Checking thiserror v2.0.17\n Checking serde-value v0.7.0\n Checking libm v0.2.15\n Checking ciborium v0.2.2\n Checking thiserror v1.0.69\n Checking bytemuck v1.24.0\n Checking warp-math v0.1.0 (/workspace/echo/crates/warp-math)\n Checking echo-wasm-abi v0.1.0 (/workspace/echo/crates/echo-wasm-abi)\n Checking hex v0.4.3\n Checking echo-runtime-schema v0.1.0 (/workspace/echo/crates/echo-runtime-schema)\n Checking rustc-hash v2.1.1\n Checking bytes v1.11.1\n Checking echo-registry-api v0.1.0 (/workspace/echo/crates/echo-registry-api)\n Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.84s\n","/bin/bash -lc 'cargo check -p warp-core'",[601],25294,"call_K7IbZdjyNfZBquzIjycE4rn0","31264",{"_524":602,"_93":572},"cargo check -p warp-core",{"_463":604,"_444":445,"_465":451},{"_483":605,"_42":-5,"_469":-5,"_485":606,"_93":487},"call_eCaBwPCppfRelDcUaWGyIw9Z","Chunk ID: 0923ec\nWall time: 5.0016 seconds\nProcess running with session ID 31264\nOriginal token count: 0\nOutput:\n",{"_463":608,"_444":445,"_465":451},{"_491":591,"_483":605,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":610,"_444":445,"_465":451},{"_483":611,"_42":-5,"_469":-5,"_485":612,"_93":487},"call_5QYDlHdKaGc9Y7GPeaqvL3Ti","Chunk ID: bf85b0\nWall time: 5.0005 seconds\nProcess running with session ID 31264\nOriginal token count: 142\nOutput:\n Checking thiserror v2.0.17\n Checking serde-value v0.7.0\n Checking libm v0.2.15\n Checking ciborium v0.2.2\n Checking thiserror v1.0.69\n Checking bytemuck v1.24.0\n Checking warp-math v0.1.0 (/workspace/echo/crates/warp-math)\n Checking echo-wasm-abi v0.1.0 (/workspace/echo/crates/echo-wasm-abi)\n Checking hex v0.4.3\n Checking echo-runtime-schema v0.1.0 (/workspace/echo/crates/echo-runtime-schema)\n Checking rustc-hash v2.1.1\n Checking bytes v1.11.1\n Checking echo-registry-api v0.1.0 (/workspace/echo/crates/echo-registry-api)\n",{"_463":614,"_444":445,"_465":451},{"_491":591,"_483":611,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":616,"_444":445,"_465":451},{"_483":617,"_42":-5,"_469":-5,"_485":618,"_93":487},"call_DborzVE8rxgSQWQeVmrPSA0o","Chunk ID: 158e43\nWall time: 5.0025 seconds\nProcess running with session ID 31264\nOriginal token count: 93\nOutput:\n Checking num-traits v0.2.19\n Checking serde v1.0.228\n Checking half v2.7.1\n Checking ciborium-io v0.2.2\n Compiling arrayvec v0.7.6\n Compiling constant_time_eq v0.3.1\n Compiling arrayref v0.3.9\n Checking ciborium-ll v0.2.2\n Compiling blake3 v1.8.2\n Checking ordered-float v2.10.1\n Compiling warp-core v0.1.1 (/workspace/echo/crates/warp-core)\n",{"_463":620,"_444":445,"_465":451},{"_491":591,"_483":617,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":622,"_444":445,"_465":451},{"_483":599,"_42":-5,"_469":-5,"_485":623,"_93":487},"Chunk ID: 896199\nWall time: 1.0018 seconds\nProcess running with session ID 31264\nOriginal token count: 23\nOutput:\n Checking cfg-if v1.0.4\n Checking serde_core v1.0.228\n Checking zerocopy v0.8.31\n",{"_463":625,"_444":445,"_465":451},{"_491":626,"_483":599,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"cargo check -p warp-core\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":628,"_444":445,"_465":451},{"_466":-5,"_547":629,"_42":-5,"_469":-5,"_549":630,"_93":551},"gAAAAABqL8cw2a074_0sbZM9ptiFr1zUcfHei7acWozI4wvWTDdo2kniX6R-xxZWXPuWEJMIKYZ663NoPPi5nF7FeRironKfVqbAAIdhrGd0qIdubLgNEXb6tV2JQoENMcp0cXN0UG-2ZwMmSZdQUG0HsD_PmPUqnb3IJQCSf8gPBvVKuGI0oyh8-Ziv_gK9MX-p27dkjW0ocT6uDhL6BPijyyfp4Lzj1ZhFUNZa6V933-XDbrKAefjTDjQ6oCUkVGZXIm21d5XzhxobFnfBHkOPieve_JFZ5JnmCV4yybabZk5Ff7b6zQfYzeik_pnlC8w4dyDVWKbJRlm9tYXMX1YtRzdZhc_Vhh0Ss_cToIgep8QmOmB8V6G5OjMLMEFq15JgU3OLutxoB13TbNsbHscL05gnGkldkX5t6eMrCtn0aVhPDUiKdW7k3HEwD45R3jltMp__KIHVmsnd5O0dExpJOMtiVzKhylei49NylE8jCOJMfA-Rp7HSsKl5NxWRAXIGRL02NCCEIGwNs_tiPjVoLyjyO4L95UWh_ByKqTXuve4R6nPslf1vgly82o8EILuycgghLzrTGaveoE2zpCNi-RlIwbsjMpi-S9hONyddqf30p2llS8mLjzNUsjl0D7CP_xJOjDrw06PXyIwFeCmoFXRBwrENLRfL9L5eZTc4Ri70nHn2ce4aOT9bfDNM4Gs-KwsdFENOF4HIn99yiytwCQ1Q8SO_FgzlSGQzi1mbTdvOdHa53_eShTeGxV8TPCD8SFI5zCVsMuEpV7Mm7ZxdT-2W2gTFv3jKX_hmaAN0WKdxT93i9pQQGj5qCUCzIsGcg2aaXv4lc-gX1_lhOoESFHLavRgj4SjB_kQ07nofVf2pLrU73I0P8cUFwsH3RP80bVjPaEbSgL9m4GtbaZ0CidNk9tXGOwV-wPAyBWcf2C6-KDwhu_-bEWaooA3lg0YTrTNgmldmIMtj71_l9ahoAY-KhdEVDxad32QoytYA1zOfRNn76E1hKEdFCQUmB7JX94DLt9JsUB1SpoNO6EfXj5gJr6HWK3YUscXWp4d_eL0ljLNfObCCYQYqOAOFWua1ZdVrvOn_qsCdav0kDk6rfY_40Hzf2XMzIA4R0BaxrozkDnGsGCjaH7G-POZA6aL55inKlkU4igvP9C1srheuLU6g4fRAoQoo5EuRAXYl134aCrXPgVlgOdsBZ7KLRUNyO9irFZTyWlQlO3hs2CDtgxHLH2cEKA==",[631],{"_46":632,"_93":554},"**Finalizing the commit process**\n\nI need to commit my changes, and running a git diff check could be a good step. I want line numbers included for reference after the commit. Also, should I run a cargo check? The checklist suggests that I run it, but maybe it would be smart to check specifically for the warp-core package with cargo check -p warp-core. After that, I’ll need to add specific files for my commit.",{"_463":634,"_444":445,"_465":451},{"_466":635,"_42":636,"_549":637,"_93":551},[],"rs_0219c042e5b77a1a016a2fc72e38a08194955f80fc6effb4a5",[632],{"_463":639,"_444":445,"_465":451},{"_483":640,"_42":-5,"_469":-5,"_485":641,"_93":487},"call_U8mukhXU8fkRkIIfVEN8e6MP","Chunk ID: 1c187a\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 233\nOutput:\n M crates/warp-core/src/strand.rs\n M pnpm-lock.yaml\ndiff --git a/crates/warp-core/src/strand.rs b/crates/warp-core/src/strand.rs\nindex 518153e..cee46b8 100644\n--- a/crates/warp-core/src/strand.rs\n+++ b/crates/warp-core/src/strand.rs\n@@ -240,8 +240,9 @@ impl Strand

{\n ///\n /// Returns [`StrandError`] when the retained posture is incoherent, the\n /// static posture marker disagrees with runtime posture, the child and\n- /// source worldlines are the same, writer heads target the wrong child\n- /// worldline, or support pins are self-targeted or duplicate one another.\n+ /// source worldlines are the same, the v1 writer-head set does not contain\n+ /// exactly one head, that writer head targets the wrong child worldline, or\n+ /// support pins are self-targeted or duplicate one another.\n pub fn new(\n strand_id: StrandId,\n fork_basis_ref: ForkBasisRef,\n","/bin/bash -lc 'git status --short && git diff -- crates/warp-core/src/strand.rs'",[648],"17746",{"_524":649,"_93":572},"git status --short && git diff -- crates/warp-core/src/strand.rs",{"_463":651,"_444":445,"_465":451},{"_491":652,"_483":640,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"git status --short && git diff -- crates/warp-core/src/strand.rs\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":4000}",{"_463":654,"_444":445,"_465":451},{"_466":-5,"_547":655,"_42":-5,"_469":-5,"_549":656,"_93":551},"gAAAAABqL8crTYU_zVvYUfmdNOyfHYjVF142X-ASZ2CbD62EhDAAY5bWExmWSw1QMPDEaVRAuc-L5bCSCZRwmZSvjbhn-cUtP6W0lvwAYo4MpF2ot0r-bR6M2SIv5HDBJd03LKI3JcGk7Sv0HM8oVu19j8O-sGzHQc3nHMiubZgDbsKN7nLMZs5SfnpWVRmn9r3RsbQoq9wMeIOHjwKQgQKSTkyOfLz54kPQFDgj2gk4YLONqaqqvojoMVGuZO4Ttdq8WTgH63EJKWcDrMme2LRkR9dUl26s0jzw_FKHJHLuL1V63QVxrD79yPHLV0_h_E1UaOPn5BQFmnicsROCfHXe2OZNhmWdapNbr-sFocZ0nPi-j1jSkDjKI5IfLXERqjIOM37F3kw-mHlC-QNt3TC2jbmcVUf-G9Ypb6GoFYoCvVxf26n9rSh29J7VBkEmGJwOmgb5nKmS4hHwWQyaoUJKaTEOr7CqhABdiLI_NMkYIUNRusOPIgROts9GpP-Ync6KQwC28KGNvsYUikfvo7dIl3b_QTiHVd9VqItKSCZVmftfnID5o_NTsnTmhWa_Ys2ZtlWA-teScJIq32KihHFO9uzMy7XyW1-fR1tzHXWuJQ_QwsBrgU0PbVauXJ1vwK7mhsFHX6Yy10vbLiMbtR88LDkb-ItU0JOdcS4nDCdIkMYD_tbNpFQNqkstnC3fPb6N_ErdM-aKR_afziPpJZO4UIdnzcBQ2Vqabi3bjn_F4d144euVlxA-AHf_9rfUHOtvu_dsN_qeZ6xpEGxxzmtCpK5V8mVigtXw3N_9UmB-WkJRVTSnT4FnmouBhud-pHKVsS1OpK939nE0Nv7p0HQHPoafg_kUaMv7_kFMmxlMlotM35dm2H_R16PPQg4Pa-OG2-pojvGBafTCn-i_bJaptdGDCtR5O1aDra2c5ZsUvFy1IeilCv4=",[],{"_463":658,"_444":445,"_465":451},{"_466":659,"_42":660,"_549":661,"_93":551},[],"rs_0219c042e5b77a1a016a2fc72a709481948730e0edb85cfe22",[],{"_463":663,"_444":445,"_465":451},{"_522":664,"_524":665,"_526":666,"_528":529,"_449":667,"_530":32,"_42":668,"_531":669,"_533":534,"_456":114,"_93":535}," Compiling proc-macro2 v1.0.104\n Compiling unicode-ident v1.0.22\n Compiling quote v1.0.42\n Compiling cfg-if v1.0.4\n Compiling zerocopy v0.8.31\n Compiling find-msvc-tools v0.1.6\n Compiling serde_core v1.0.228\n Compiling syn v2.0.111\n Compiling libc v0.2.178\n Compiling shlex v1.3.0\n Compiling cc v1.2.51\n Compiling autocfg v1.5.0\n Compiling num-traits v0.2.19\n Compiling zerocopy-derive v0.8.31\n Compiling blake3 v1.8.2\n Compiling getrandom v0.3.4\n Compiling serde v1.0.228\n Compiling serde_derive v1.0.228\n Compiling arrayref v0.3.9\n Compiling arrayvec v0.7.6\n Compiling constant_time_eq v0.3.1\n Compiling thiserror v2.0.17\n Compiling half v2.7.1\n Compiling thiserror-impl v2.0.17\n Compiling libm v0.2.15\n Compiling ciborium-io v0.2.2\n Compiling thiserror v1.0.69\n Compiling ciborium-ll v0.2.2\n Compiling ordered-float v2.10.1\n Compiling thiserror-impl v1.0.69\n Compiling zmij v1.0.2\n Compiling rustix v1.1.3\n Compiling serde-value v0.7.0\n Compiling ciborium v0.2.2\n Compiling rand_core v0.9.3\n Compiling warp-core v0.1.1 (/workspace/echo/crates/warp-core)\n Compiling bytemuck_derive v1.10.2\n Compiling linux-raw-sys v0.11.0\n Compiling anyhow v1.0.100\n Compiling bitflags v2.10.0\n Compiling serde_json v1.0.148\n Compiling bytemuck v1.24.0\n Compiling warp-math v0.1.0 (/workspace/echo/crates/warp-math)\n Compiling echo-wasm-abi v0.1.0 (/workspace/echo/crates/echo-wasm-abi)\n Compiling rustc-hash v2.1.1\n Compiling once_cell v1.21.3\n Compiling echo-runtime-schema v0.1.0 (/workspace/echo/crates/echo-runtime-schema)\n Compiling itoa v1.0.17\n Compiling echo-registry-api v0.1.0 (/workspace/echo/crates/echo-registry-api)\n Compiling memchr v2.7.6\n Compiling hex v0.4.3\n Compiling fastrand v2.3.0\n Compiling bytes v1.11.1\n Compiling tempfile v3.24.0\n Compiling ppv-lite86 v0.2.21\n Compiling wait-timeout v0.2.1\n Compiling bit-vec v0.8.0\n Compiling quick-error v1.2.3\n Compiling fnv v1.0.7\n Compiling rusty-fork v0.3.1\n Compiling bit-set v0.8.0\n Compiling rand_chacha v0.9.0\n Compiling echo-app-core v0.1.0 (/workspace/echo/crates/echo-app-core)\n Compiling rand v0.9.3\n Compiling echo-graph v0.1.0 (/workspace/echo/crates/echo-graph)\n Compiling rand_xorshift v0.4.0\n Compiling regex-syntax v0.8.8\n Compiling unarray v0.1.4\n Compiling proptest v1.9.0\n Compiling echo-dry-tests v0.1.0 (/workspace/echo/crates/echo-dry-tests)\n Compiling echo-cas v0.1.0 (/workspace/echo/crates/echo-cas)\n Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 27s\n Doc-tests warp_core\n\nrunning 29 tests\ntest crates/warp-core/src/attachment.rs - attachment::AttachmentKey::is_plane_valid (line 143) ... ignored\ntest crates/warp-core/src/constants.rs - constants::blake3_empty (line 34) ... ok\ntest crates/warp-core/src/constants.rs - constants::digest_len0_u64 (line 53) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine (line 382) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine (line 400) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine::materialization_bus_mut (line 2260) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine::has_materialization_errors (line 2319) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder (line 165) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder (line 185) ... ok\ntest crates/warp-core/src/graph_view.rs - graph_view (line 26) ... ok\ntest crates/warp-core/src/lib.rs - footprint_guard (line 134) ... ignored\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder::with_materialization_bus (line 341) ... ok\ntest crates/warp-core/src/lib.rs - wsc (line 61) - compile ... ok\ntest crates/warp-core/src/lib.rs - wsc (line 79) - compile ... ok\ntest crates/warp-core/src/materialization/channel.rs - materialization::channel::ChannelPolicy::Reduce (line 83) ... ok\ntest crates/warp-core/src/materialization/bus.rs - materialization::bus::FinalizeReport::assert_clean (line 144) ... ok\ntest crates/warp-core/src/materialization/channel.rs - materialization::channel::make_channel_id (line 25) ... ok\ntest crates/warp-core/src/materialization/emission_port.rs - materialization::emission_port::EmissionPort::emit_with_subkey (line 65) ... ok\ntest crates/warp-core/src/materialization/port.rs - materialization::port (line 14) ... ok\ntest crates/warp-core/src/optic_artifact.rs - optic_artifact::OpticAdmissionEvidenceAuthority (line 200) - compile fail ... ok\ntest crates/warp-core/src/materialization/scoped_emitter.rs - materialization::scoped_emitter::ScopedEmitter (line 22) ... ok\ntest crates/warp-core/src/playback.rs - playback::ViewSession (line 707) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_emissions_digest (line 566) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_op_emission_index_digest (line 632) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_tick_commit_hash_v2 (line 461) ... ignored\ntest crates/warp-core/src/parallel/shard.rs - parallel::shard::shard_of (line 73) ... ok\ntest crates/warp-core/src/strand.rs - strand::Strand (line 142) - compile fail ... ok\ntest crates/warp-core/src/wsc/view.rs - wsc::view (line 10) - compile ... ok\ntest crates/warp-core/src/tick_delta.rs - tick_delta::ScopedDelta (line 203) ... ok\n\ntest result: ok. 23 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out; finished in 14.75s\n\n","/bin/bash -lc 'cargo test -p warp-core --doc'",[670],103666,"call_exHD8etbPjNTcwUvoV9zNkpO","9132",{"_524":671,"_93":572},"cargo test -p warp-core --doc",{"_463":673,"_444":445,"_465":451},{"_483":674,"_42":-5,"_469":-5,"_485":675,"_93":487},"call_6V4qS3nMlS3VNJxrimtxMF4q","Chunk ID: 9e5e92\nWall time: 2.6231 seconds\nProcess exited with code 0\nOriginal token count: 514\nOutput:\ntest crates/warp-core/src/graph_view.rs - graph_view (line 26) ... ok\ntest crates/warp-core/src/lib.rs - footprint_guard (line 134) ... ignored\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder::with_materialization_bus (line 341) ... ok\ntest crates/warp-core/src/lib.rs - wsc (line 61) - compile ... ok\ntest crates/warp-core/src/lib.rs - wsc (line 79) - compile ... ok\ntest crates/warp-core/src/materialization/channel.rs - materialization::channel::ChannelPolicy::Reduce (line 83) ... ok\ntest crates/warp-core/src/materialization/bus.rs - materialization::bus::FinalizeReport::assert_clean (line 144) ... ok\ntest crates/warp-core/src/materialization/channel.rs - materialization::channel::make_channel_id (line 25) ... ok\ntest crates/warp-core/src/materialization/emission_port.rs - materialization::emission_port::EmissionPort::emit_with_subkey (line 65) ... ok\ntest crates/warp-core/src/materialization/port.rs - materialization::port (line 14) ... ok\ntest crates/warp-core/src/optic_artifact.rs - optic_artifact::OpticAdmissionEvidenceAuthority (line 200) - compile fail ... ok\ntest crates/warp-core/src/materialization/scoped_emitter.rs - materialization::scoped_emitter::ScopedEmitter (line 22) ... ok\ntest crates/warp-core/src/playback.rs - playback::ViewSession (line 707) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_emissions_digest (line 566) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_op_emission_index_digest (line 632) ... ignored\ntest crates/warp-core/src/snapshot.rs - snapshot::compute_tick_commit_hash_v2 (line 461) ... ignored\ntest crates/warp-core/src/parallel/shard.rs - parallel::shard::shard_of (line 73) ... ok\ntest crates/warp-core/src/strand.rs - strand::Strand (line 142) - compile fail ... ok\ntest crates/warp-core/src/wsc/view.rs - wsc::view (line 10) - compile ... ok\ntest crates/warp-core/src/tick_delta.rs - tick_delta::ScopedDelta (line 203) ... ok\n\ntest result: ok. 23 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out; finished in 14.75s\n\n",{"_463":677,"_444":445,"_465":451},{"_491":678,"_483":674,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},"{\"session_id\":9132,\"chars\":\"\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":680,"_444":445,"_465":451},{"_483":681,"_42":-5,"_469":-5,"_485":682,"_93":487},"call_gdLlcDzGs3ACObqab1sK24Bf","Chunk ID: 511897\nWall time: 5.0054 seconds\nProcess running with session ID 9132\nOriginal token count: 212\nOutput:\n\nrunning 29 tests\ntest crates/warp-core/src/attachment.rs - attachment::AttachmentKey::is_plane_valid (line 143) ... ignored\ntest crates/warp-core/src/constants.rs - constants::blake3_empty (line 34) ... ok\ntest crates/warp-core/src/constants.rs - constants::digest_len0_u64 (line 53) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine (line 382) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine (line 400) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine::materialization_bus_mut (line 2260) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::Engine::has_materialization_errors (line 2319) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder (line 165) ... ok\ntest crates/warp-core/src/engine_impl.rs - engine_impl::EngineBuilder (line 185) ... ok\n",{"_463":684,"_444":445,"_465":451},{"_491":678,"_483":681,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":686,"_444":445,"_465":451},{"_483":687,"_42":-5,"_469":-5,"_485":688,"_93":487},"call_SQk3fioyMvlmelYnB2rbRucz","Chunk ID: 77ad82\nWall time: 5.0004 seconds\nProcess running with session ID 9132\nOriginal token count: 25\nOutput:\n Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 27s\n Doc-tests warp_core\n",{"_463":690,"_444":445,"_465":451},{"_491":678,"_483":687,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":692,"_444":445,"_465":451},{"_483":693,"_42":-5,"_469":-5,"_485":694,"_93":487},"call_F9cmLB7caNgaLYEPj9lURoMy","Chunk ID: 1313cb\nWall time: 5.0017 seconds\nProcess running with session ID 9132\nOriginal token count: 35\nOutput:\n Compiling echo-dry-tests v0.1.0 (/workspace/echo/crates/echo-dry-tests)\n Compiling echo-cas v0.1.0 (/workspace/echo/crates/echo-cas)\n",{"_463":696,"_444":445,"_465":451},{"_491":678,"_483":693,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":698,"_444":445,"_465":451},{"_483":699,"_42":-5,"_469":-5,"_485":700,"_93":487},"call_WQWPSbmFXIl1d12T61X0zo7k","Chunk ID: 6cb3ee\nWall time: 5.0015 seconds\nProcess running with session ID 9132\nOriginal token count: 15\nOutput:\n Compiling unarray v0.1.4\n Compiling proptest v1.9.0\n",{"_463":702,"_444":445,"_465":451},{"_491":678,"_483":699,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":704,"_444":445,"_465":451},{"_483":705,"_42":-5,"_469":-5,"_485":706,"_93":487},"call_0txQUz7MuLlgIMDricCH7iqQ","Chunk ID: 91fbdd\nWall time: 5.0153 seconds\nProcess running with session ID 9132\nOriginal token count: 34\nOutput:\n Compiling echo-graph v0.1.0 (/workspace/echo/crates/echo-graph)\n Compiling rand_xorshift v0.4.0\n Compiling regex-syntax v0.8.8\n",{"_463":708,"_444":445,"_465":451},{"_491":678,"_483":705,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":710,"_444":445,"_465":451},{"_483":711,"_42":-5,"_469":-5,"_485":712,"_93":487},"call_2WprZU0OXmzCScaWvMQfvdRB","Chunk ID: c4f05f\nWall time: 5.0013 seconds\nProcess running with session ID 9132\nOriginal token count: 85\nOutput:\n Compiling ppv-lite86 v0.2.21\n Compiling wait-timeout v0.2.1\n Compiling bit-vec v0.8.0\n Compiling quick-error v1.2.3\n Compiling fnv v1.0.7\n Compiling rusty-fork v0.3.1\n Compiling bit-set v0.8.0\n Compiling rand_chacha v0.9.0\n Compiling echo-app-core v0.1.0 (/workspace/echo/crates/echo-app-core)\n Compiling rand v0.9.3\n",{"_463":714,"_444":445,"_465":451},{"_491":678,"_483":711,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":716,"_444":445,"_465":451},{"_483":717,"_42":-5,"_469":-5,"_485":718,"_93":487},"call_yMRmvQVuJutp3XGMwQoMUnNp","Chunk ID: a91639\nWall time: 5.0017 seconds\nProcess running with session ID 9132\nOriginal token count: 0\nOutput:\n",{"_463":720,"_444":445,"_465":451},{"_491":678,"_483":717,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":722,"_444":445,"_465":451},{"_483":723,"_42":-5,"_469":-5,"_485":724,"_93":487},"call_PNROE4QrxakZs5IX25TmWKLO","Chunk ID: 5c91c3\nWall time: 5.0018 seconds\nProcess running with session ID 9132\nOriginal token count: 98\nOutput:\n Compiling rustc-hash v2.1.1\n Compiling once_cell v1.21.3\n Compiling echo-runtime-schema v0.1.0 (/workspace/echo/crates/echo-runtime-schema)\n Compiling itoa v1.0.17\n Compiling echo-registry-api v0.1.0 (/workspace/echo/crates/echo-registry-api)\n Compiling memchr v2.7.6\n Compiling hex v0.4.3\n Compiling fastrand v2.3.0\n Compiling bytes v1.11.1\n Compiling tempfile v3.24.0\n",{"_463":726,"_444":445,"_465":451},{"_491":678,"_483":723,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":728,"_444":445,"_465":451},{"_483":729,"_42":-5,"_469":-5,"_485":730,"_93":487},"call_sxflkxaLkXTrKPuAeyki7KY0","Chunk ID: b90f68\nWall time: 5.0009 seconds\nProcess running with session ID 9132\nOriginal token count: 83\nOutput:\n Compiling bytemuck_derive v1.10.2\n Compiling linux-raw-sys v0.11.0\n Compiling anyhow v1.0.100\n Compiling bitflags v2.10.0\n Compiling serde_json v1.0.148\n Compiling bytemuck v1.24.0\n Compiling warp-math v0.1.0 (/workspace/echo/crates/warp-math)\n Compiling echo-wasm-abi v0.1.0 (/workspace/echo/crates/echo-wasm-abi)\n",{"_463":732,"_444":445,"_465":451},{"_491":678,"_483":729,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":734,"_444":445,"_465":451},{"_483":735,"_42":-5,"_469":-5,"_485":736,"_93":487},"call_WLXiL0UzQrDfxaK0zZunfRp1","Chunk ID: fb3fe4\nWall time: 5.0016 seconds\nProcess running with session ID 9132\nOriginal token count: 94\nOutput:\n Compiling ciborium-io v0.2.2\n Compiling thiserror v1.0.69\n Compiling ciborium-ll v0.2.2\n Compiling ordered-float v2.10.1\n Compiling thiserror-impl v1.0.69\n Compiling zmij v1.0.2\n Compiling rustix v1.1.3\n Compiling serde-value v0.7.0\n Compiling ciborium v0.2.2\n Compiling rand_core v0.9.3\n Compiling warp-core v0.1.1 (/workspace/echo/crates/warp-core)\n",{"_463":738,"_444":445,"_465":451},{"_491":678,"_483":735,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":740,"_444":445,"_465":451},{"_483":741,"_42":-5,"_469":-5,"_485":742,"_93":487},"call_sAQGa2PQwwU3pZmRjPP2uBek","Chunk ID: d65eac\nWall time: 5.0011 seconds\nProcess running with session ID 9132\nOriginal token count: 54\nOutput:\n Compiling arrayref v0.3.9\n Compiling arrayvec v0.7.6\n Compiling constant_time_eq v0.3.1\n Compiling thiserror v2.0.17\n Compiling half v2.7.1\n Compiling thiserror-impl v2.0.17\n Compiling libm v0.2.15\n",{"_463":744,"_444":445,"_465":451},{"_491":678,"_483":741,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":746,"_444":445,"_465":451},{"_483":747,"_42":-5,"_469":-5,"_485":748,"_93":487},"call_19B4qcrTTWwgKZpMabF1Vs55","Chunk ID: 021d06\nWall time: 5.0009 seconds\nProcess running with session ID 9132\nOriginal token count: 40\nOutput:\n Compiling zerocopy-derive v0.8.31\n Compiling blake3 v1.8.2\n Compiling getrandom v0.3.4\n Compiling serde v1.0.228\n Compiling serde_derive v1.0.228\n",{"_463":750,"_444":445,"_465":451},{"_491":678,"_483":747,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":752,"_444":445,"_465":451},{"_483":753,"_42":-5,"_469":-5,"_485":754,"_93":487},"call_EubZ3sEc0hn20BYB28zLTive","Chunk ID: 903a7d\nWall time: 5.0012 seconds\nProcess running with session ID 9132\nOriginal token count: 79\nOutput:\n Compiling quote v1.0.42\n Compiling cfg-if v1.0.4\n Compiling zerocopy v0.8.31\n Compiling find-msvc-tools v0.1.6\n Compiling serde_core v1.0.228\n Compiling syn v2.0.111\n Compiling libc v0.2.178\n Compiling shlex v1.3.0\n Compiling cc v1.2.51\n Compiling autocfg v1.5.0\n Compiling num-traits v0.2.19\n",{"_463":756,"_444":445,"_465":451},{"_491":678,"_483":753,"_42":-5,"_469":-5,"_182":592,"_513":-5,"_93":515},{"_463":758,"_444":445,"_465":451},{"_483":759,"_42":-5,"_469":-5,"_485":760,"_93":487},"call_xPePa4Ldu2EnaaGnxw6ESOsW","Chunk ID: 5ba8fe\nWall time: 0.0046 seconds\nProcess exited with code 0\nOriginal token count: 0\nOutput:\n",{"_463":762,"_444":445,"_465":451},{"_483":668,"_42":-5,"_469":-5,"_485":763,"_93":487},"Chunk ID: a78b01\nWall time: 1.0043 seconds\nProcess running with session ID 9132\nOriginal token count: 18\nOutput:\n Compiling proc-macro2 v1.0.104\n Compiling unicode-ident v1.0.22\n",{"_463":765,"_444":445,"_465":451},{"_522":-5,"_524":766,"_526":767,"_528":529,"_449":768,"_530":32,"_42":759,"_531":769,"_533":534,"_456":114,"_93":535},"/bin/bash -lc 'git diff --check'",[770],105,"97247",{"_524":771,"_93":572},"git diff --check",{"_463":773,"_444":445,"_465":451},{"_491":774,"_483":759,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"git diff --check\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":2000}",{"_463":776,"_444":445,"_465":451},{"_491":777,"_483":668,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"cargo test -p warp-core --doc\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":779,"_444":445,"_465":451},{"_466":-5,"_547":780,"_42":-5,"_469":-5,"_549":781,"_93":551},"gAAAAABqL8bB5aDRcZVOR8PN6b-_gdCYRBnHJfXlWN5W9nNa9YHybNzZaYrO3ciU7Zw3iAoNQHgk2D_PskwPSf9xteKH-Syqw1w_hwS2mhLopOLRb2SFfa0vJC351u137xSyWj7GmUmu81uOLitSOMEmiNhEC0RqDgZT5rRcutxJsqzpcR2AqJZaZvjPJ-Vr0sSQr3N4_oOAluWS119BPioppK0zIgDZy5enFroDfIOgsC7aTxk2N-I8bGo6ocrvAEtQbU2iusQL9x6xDL0Z7hH8YaWgmbeWE2bFugJqyFitWsY44d_dgaVhVjTJ5KVYLeMpn2XQl3Oa2Y30aQHF8pY1dSiVeQSEedw2OA6jvIlZX83mZaEOGJl7PdI6ltOmWp3r5bh5zcspAwvYBVmNi1eGJO7m3ErIjPFht1KXMYj5Ge080AVrOMHyrR4M5erSaOaEzgEpIUorVaS0hV6m55xhyUhZKx1-ZclPuLH40QcUzoUGj-wPQI5KMAGDOFX6ggi95JpkitawL5PEeVEO6Sion_1M71F2EzTcoSY2MJ6umS08cpzede05AEVEDxdQ2Jo4rVsbU2r7Y2Z1HB0u3IYWmTgMkqGjq_PYfEGeNDfEsFbGL6DMhwC7fDenhROZCtL8ksdr_DHuVKe26VaVe7S-q6O4HNqyj7rTyZo-lu8Bf7XCiz-xoS7ZJnEF-Orf8as78-q1SrL6Qw21KNwUBNpUtogyfXjWbFVjzs94er3romiD_e-_4ZLKC5D7bPE7w0Adjex9wd7Tmqaygq53vj-mFIIQ36s6nn35RH7hMJ3K6TqClDDaq5OCNZ4an6P6kdI4SfGBGGa9GHvtRgpl-YlJVI3Ibp0jQGa5rO51NsuB6GfC6ixGN3kPKV7Cj0qQb4HJY3i1tZ8oh8K94Nb5IkIqrrbr00vfg55nxBYvV-jCBZ-ZuD71QWicPcy371PwHKS1RibkGHq3Ut_lukIcF6oEEsybX3j1-g==",[],{"_463":783,"_444":445,"_465":451},{"_466":784,"_42":785,"_549":786,"_93":551},[],"rs_0219c042e5b77a1a016a2fc6bef45881949c5c392fae713a50",[],{"_463":788,"_444":445,"_465":451},{"_522":789,"_524":790,"_526":791,"_528":529,"_449":792,"_530":32,"_42":793,"_531":794,"_533":534,"_456":114,"_93":535}," ///\n /// # Errors\n ///\n /// Returns [`StrandError`] when the retained posture is incoherent, the\n /// static posture marker disagrees with runtime posture, the child and\n /// source worldlines are the same, the v1 writer-head set does not contain\n /// exactly one head, that writer head targets the wrong child worldline, or\n /// support pins are self-targeted or duplicate one another.\n pub fn new(\n strand_id: StrandId,\n fork_basis_ref: ForkBasisRef,\n child_worldline_id: WorldlineId,\n writer_heads: Vec,\n support_pins: Vec,\n retention_posture: RetentionPosture,\n","/bin/bash -lc \"python - <<'PY'\nfrom pathlib import Path\np=Path('crates/warp-core/src/strand.rs')\ns=p.read_text()\nold=\\\"\\\"\\\" /// source worldlines are the same, writer heads target the wrong child\\\\n /// worldline, or support pins are self-targeted or duplicate one another.\\\\n\\\"\\\"\\\"\nnew=\\\"\\\"\\\" /// source worldlines are the same, the v1 writer-head set does not contain\\\\n /// exactly one head, that writer head targets the wrong child worldline, or\\\\n /// support pins are self-targeted or duplicate one another.\\\\n\\\"\\\"\\\"\nif old not in s:\n raise SystemExit('target text not found')\np.write_text(s.replace(old,new))\nPY\nsed -n '238,252p' crates/warp-core/src/strand.rs\"",[795],864,"call_IUsbG4yqxzdjH1IeaWz5MqSt","32051",{"_524":796,"_93":572},"python - <<'PY'\nfrom pathlib import Path\np=Path('crates/warp-core/src/strand.rs')\ns=p.read_text()\nold=\"\"\" /// source worldlines are the same, writer heads target the wrong child\\n /// worldline, or support pins are self-targeted or duplicate one another.\\n\"\"\"\nnew=\"\"\" /// source worldlines are the same, the v1 writer-head set does not contain\\n /// exactly one head, that writer head targets the wrong child worldline, or\\n /// support pins are self-targeted or duplicate one another.\\n\"\"\"\nif old not in s:\n raise SystemExit('target text not found')\np.write_text(s.replace(old,new))\nPY\nsed -n '238,252p' crates/warp-core/src/strand.rs",{"_463":798,"_444":445,"_465":451},{"_483":793,"_42":-5,"_469":-5,"_485":799,"_93":487},"Chunk ID: 738afb\nWall time: 0.7636 seconds\nProcess exited with code 0\nOriginal token count: 166\nOutput:\n ///\n /// # Errors\n ///\n /// Returns [`StrandError`] when the retained posture is incoherent, the\n /// static posture marker disagrees with runtime posture, the child and\n /// source worldlines are the same, the v1 writer-head set does not contain\n /// exactly one head, that writer head targets the wrong child worldline, or\n /// support pins are self-targeted or duplicate one another.\n pub fn new(\n strand_id: StrandId,\n fork_basis_ref: ForkBasisRef,\n child_worldline_id: WorldlineId,\n writer_heads: Vec,\n support_pins: Vec,\n retention_posture: RetentionPosture,\n",{"_463":801,"_444":445,"_465":451},{"_491":802,"_483":793,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"python - <<'PY'\\nfrom pathlib import Path\\np=Path('crates/warp-core/src/strand.rs')\\ns=p.read_text()\\nold=\\\"\\\"\\\" /// source worldlines are the same, writer heads target the wrong child\\\\n /// worldline, or support pins are self-targeted or duplicate one another.\\\\n\\\"\\\"\\\"\\nnew=\\\"\\\"\\\" /// source worldlines are the same, the v1 writer-head set does not contain\\\\n /// exactly one head, that writer head targets the wrong child worldline, or\\\\n /// support pins are self-targeted or duplicate one another.\\\\n\\\"\\\"\\\"\\nif old not in s:\\n raise SystemExit('target text not found')\\np.write_text(s.replace(old,new))\\nPY\\nsed -n '238,252p' crates/warp-core/src/strand.rs\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":2000}",{"_463":804,"_444":445,"_465":451},{"_483":805,"_42":-5,"_469":-5,"_485":806,"_93":487},"call_qsb7ePpmKfWUAXFihcNOt693","Chunk ID: 5461ba\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 5\nOutput:\n../echo/AGENTS.md\n",{"_463":808,"_444":445,"_465":451},{"_522":809,"_524":810,"_526":811,"_528":529,"_449":32,"_530":32,"_42":805,"_531":812,"_533":534,"_456":114,"_93":535},"../echo/AGENTS.md\n","/bin/bash -lc 'find .. -name AGENTS.md -print'",[813],"25911",{"_524":814,"_162":815,"_816":817,"_93":818},"find .. -name AGENTS.md -print","..","query","AGENTS.md","search",{"_463":820,"_444":445,"_465":451},{"_491":821,"_483":805,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"find .. -name AGENTS.md -print\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":2000}",{"_463":823,"_444":445,"_465":451},{"_466":-5,"_547":824,"_42":-5,"_469":-5,"_549":825,"_93":551},"gAAAAABqL8a3mPqmy2FW0jwNGbANe1uL09vrOGJnKZQTMzYV5tWZeJIZHXJief-ecyL3K7qIKdegJ-CjV63-g8EgOCWZOaluLZ6iClgS7NEGyRcDUFMPrGkSSs5jsSdEjgkK106FJeG9fBc6rAdbg0MgquGlzQu8jdD47gX9gcSNpkS_pyJqD9N-hw65B5BXQuKOKa4Nl7i9wUlsIFi5f4lRiFpYJ3j148eGDOAeiDZVj0c6XJeaZFpqMYNLHvCfWBBwQbyKcLpSmRbcu8BLazIzRf2jkAAcdcTGIBGlCTzFbLghY0OeBmqsUiYj1-ZyVACXqA6zsTn0oNqtTpAUGFAo3P30_jxnGWcDigClA7dDv5eUEP6HlyoznNXg3y0uqHfDi1xdaZR5jPaumLixXQnW6Xyo6IDZG4xe5mbIlDwyBgjPW2jcFIxjmYhlle0dID5cJMilo0rNbdh2ttiWd6_n5Xb256jKTdORrOdmLuGoKFaosKXJjiWGNWjL0K5olUSnrE_Dt2oT4cu1GTKX4iG-AUt55I1nBUyub00CsiWg4me7n3pXd0qZUP1xnv0Ga0HjWTYBy8KEfVfbaJOFhO9SDx5aIA7F_dxvqZyeGcOHWyTY6jonONfkVaTleYSwexh9BgY6XLTgfbv-XA8x6314VVANbn1EkN1XwZuKxFB9nn4mvpevBol_LjltlG8RSlxu4q_3mJC8hLh65TbAZZ21Dw80kAbwRC-p3YsbKSI-e2N06KFZhp31YkPSKFslP6zJj-FcF_nixOvkCd201c-GV0-Yg1N486zJmpl17JdlKjo4FFv8OfsX48_aYSRjzd1cWANJLbuWJ9K1Yu4bLo4ZRCjAB_x3LAxojNP1I5JV_-ywehFpX7Bf_xTmHZT4htFaoQ0BUwHf-c2GxTfYLL8fPDGwznqFzficuk-jkAAmjhKpd0yoLMHhy0N0cV8Otn6xLfUcVx7KLTsmw28FQ8xz15w2AEkZxqWS5zxmg3R7wyZuoXfx78J62F43XVR0-lK7W8gZDmSD7TqDmfypM79JSnUEm-LP_y7zyxf5jpiSgK5KhAg2pUQPJUr06t6BqTunDXZm1UO0m-ui1N8WaA0UsCtaGLH-NIvxfjXX2hR02B-JflC8IxXRYvM80LOLMnl7CwiAkIu_S6tT4qZKB6ibC8yvjdqhKblrAxsypGM4aOFrUj2KbU1MnCG-pS_BO7NDvJz9aW_vEeKWVoC6_A13skzrG7SSSJ_4wFcGOBMXo9AT_Oj6Ug9IubMMPsMhpgpfvXcCT0axtK-FmqxUdjxikw0OMhV66qJfFElecFnvn7msTy46xkwavOg-5KcfzDroL_WP7AXwfBYzmqAqx3LhM-BkswWmCEZ1EZESdS5gT34XdlMJ66GoD4pBBb5MY6DMom1hXoX-BI-bfEnX-Im1usEmj_MsWIT7K2kXsWJENRVIfUlFx7IiCZBkmWsJvg4F1j2Lbvfl",[826],{"_46":827,"_93":554},"**Updating errors and tests**\n\nI need to focus on updating the errors, mentioning only the specific one and possibly the line. Maybe I should use the apply method and then test markdownlint for the Rust documentation. I’m considering running `cargo test -p warp-core --doc`, since that focuses solely on the docs. I’ll also make sure not to touch the `pnpm-lock` file, just add specific files to commit. Before making a pull request, I should check the AGENTS deeper under that path.",{"_463":829,"_444":445,"_465":451},{"_466":830,"_42":831,"_549":832,"_93":551},[],"rs_0219c042e5b77a1a016a2fc6b2e15c81949390d994d167539d",[827],{"_463":834,"_444":445,"_465":451},{"_483":835,"_42":-5,"_469":-5,"_485":836,"_93":487},"call_x0u5iT0DK5hWeu6DfOAREovj","Chunk ID: b5301d\nWall time: 0.0001 seconds\nProcess exited with code 0\nOriginal token count: 905\nOutput:\nimpl Strand

{\n /// Creates a strand through a posture-aware constructor boundary.\n ///\n /// This validates the retained posture bundle, checks the static posture\n /// marker against runtime posture when the marker is concrete, and enforces\n /// the local strand invariants that do not require live registry context.\n /// [`StrandRegistry`] remains responsible for registry-relative admission\n /// checks such as support target liveness.\n ///\n /// # Errors\n ///\n /// Returns [`StrandError`] when the retained posture is incoherent, the\n /// static posture marker disagrees with runtime posture, the child and\n /// source worldlines are the same, writer heads target the wrong child\n /// worldline, or support pins are self-targeted or duplicate one another.\n pub fn new(\n strand_id: StrandId,\n fork_basis_ref: ForkBasisRef,\n child_worldline_id: WorldlineId,\n writer_heads: Vec,\n support_pins: Vec,\n retention_posture: RetentionPosture,\n ) -> Result {\n validate_local_strand_invariants::

(\n strand_id,\n &fork_basis_ref,\n child_worldline_id,\n &writer_heads,\n &support_pins,\n &retention_posture,\n )?;\n\n Ok(Self {\n strand_id,\n fork_basis_ref,\n child_worldline_id,\n writer_heads,\n support_pins,\n retention_posture,\n _marker: std::marker::PhantomData,\n })\n }\n\n /// Returns this strand's stable identity.\n #[must_use]\n pub fn strand_id(&self) -> StrandId {\n self.strand_id\n }\n\n /// Returns the immutable fork coordinate.\n #[must_use]\n pub fn fork_basis_ref(&self) -> ForkBasisRef {\n self.fork_basis_ref\n }\n\n /// Returns the child worldline created by this strand.\n #[must_use]\n pub fn child_worldline_id(&self) -> WorldlineId {\n self.child_worldline_id\n }\n\n /// Returns the writer heads owned by this strand's child worldline.\n #[must_use]\n pub fn writer_heads(&self) -> &[WriterHeadKey] {\n &self.writer_heads\n }\n\n /// Returns the read-only support pins held by this strand.\n #[must_use]\n pub fn support_pins(&self) -> &[SupportPin] {\n &self.support_pins\n }\n\n /// Returns the explicit retention, authority, and admission posture.\n #[must_use]\n pub fn retention_posture(&self) -> RetentionPosture {\n self.retention_posture\n }\n\n /// Builds a basis-relative report for this strand against current parent history.\n ///\n /// The report is the first live-strand seam: the strand still records an\n /// immutable fork anchor, but realization is evaluated against the current\n /// parent basis. Parent movement outside the strand-owned closed footprint\n /// can flow through; parent writes into that footprint require explicit\n /// revalidation before callers treat the realization as clean.\n ///\n /// # Errors\n ///\n /// Returns [`StrandError`] when provenance is unavailable or the fork tick\n /// cannot be advanced to the suffix start coordinate.\n pub fn live_basis_report(\n &self,\n provenance: &S,\n ) -> Result {\n let suffix_start = self\n .fork_basis_ref\n .fork_tick\n .checked_increment()\n .ok_or(StrandError::ForkTickOverflow(self.strand_id))?;\n let child_len = history_len(provenance, self.child_worldline_id)?;\n","/bin/bash -lc \"sed -n '230,330p' crates/warp-core/src/strand.rs\"",[843],"78891",{"_524":844,"_182":538,"_162":539,"_93":540},"sed -n '230,330p' crates/warp-core/src/strand.rs",{"_463":846,"_444":445,"_465":451},{"_491":847,"_483":835,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"sed -n '230,330p' crates/warp-core/src/strand.rs\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":4000}",{"_463":849,"_444":445,"_465":451},{"_483":850,"_42":-5,"_469":-5,"_485":851,"_93":487},"call_Ub98LL5h9LwphcHySOn14VHv","Chunk ID: 12cdb0\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 1172\nOutput:\n///\n/// This is the only record that the strand existed after hard-delete.\n#[derive(Clone, Copy, PartialEq, Eq, Debug)]\npub struct DropReceipt {\n /// The dropped strand's identity.\n pub strand_id: StrandId,\n /// The child worldline that was removed.\n pub child_worldline_id: WorldlineId,\n /// The tick the child worldline had reached at drop time.\n pub final_tick: WorldlineTick,\n}\n\n/// A strand: a named, ephemeral, speculative execution lane.\n///\n/// A strand either exists in the `StrandRegistry` (live) or does not\n/// (dropped). There is no lifecycle field — operational state is derived\n/// from the writer heads.\n///\n/// External callers must use named constructors. Struct-literal construction\n/// would let callers forge a static posture marker that disagrees with the\n/// runtime retention posture:\n///\n/// ```compile_fail\n/// use warp_core::{Shared, Strand};\n///\n/// let _forged: Strand = Strand {\n/// strand_id: todo!(),\n/// fork_basis_ref: todo!(),\n/// child_worldline_id: todo!(),\n/// writer_heads: todo!(),\n/// support_pins: todo!(),\n/// retention_posture: todo!(),\n/// _marker: std::marker::PhantomData,\n/// };\n/// ```\n#[expect(\n clippy::struct_field_names,\n reason = \"strand_id is the canonical domain field name\"\n)]\n#[derive(Clone, PartialEq, Eq, Debug)]\npub struct Strand {\n /// Unique strand identity.\n pub(crate) strand_id: StrandId,\n /// Immutable fork coordinate.\n pub(crate) fork_basis_ref: ForkBasisRef,\n /// Child worldline created by fork.\n pub(crate) child_worldline_id: WorldlineId,\n /// Writer heads for the child worldline (cardinality 1 in v1).\n pub(crate) writer_heads: Vec,\n /// Read-only support pins for braid geometry.\n pub(crate) support_pins: Vec,\n /// Explicit retention, authority, and admission posture for the strand.\n pub(crate) retention_posture: RetentionPosture,\n /// Phantom marker for the static causal posture typestate.\n pub(crate) _marker: std::marker::PhantomData

,\n}\n\nconst V1_WRITER_HEAD_COUNT_INVARIANT: &str =\n \"INV-S2: v1 strands must carry exactly one writer head\";\n\nfn validate_local_strand_invariants(\n strand_id: StrandId,\n fork_basis_ref: &ForkBasisRef,\n child_worldline_id: WorldlineId,\n writer_heads: &[WriterHeadKey],\n support_pins: &[SupportPin],\n retention_posture: &RetentionPosture,\n) -> Result<(), StrandError> {\n retention_posture.validate().map_err(StrandError::Posture)?;\n if let Some(expected) = P::causal_posture() {\n if retention_posture.causal_posture != expected {\n return Err(StrandError::Posture(PostureObstruction::PostureMismatch {\n actual: retention_posture.causal_posture,\n expected,\n }));\n }\n }\n if child_worldline_id == fork_basis_ref.source_lane_id {\n return Err(StrandError::InvariantViolation(\n \"INV-S7: child_worldline_id must differ from fork_basis_ref.source_lane_id\",\n ));\n }\n if writer_heads.len() != 1 {\n return Err(StrandError::InvariantViolation(\n V1_WRITER_HEAD_COUNT_INVARIANT,\n ));\n }\n for head_key in writer_heads {\n if head_key.worldline_id != child_worldline_id {\n return Err(StrandError::InvariantViolation(\n \"INV-S8: every writer head must belong to child_worldline_id\",\n ));\n }\n }\n let mut seen_support_targets = BTreeSet::new();\n for support_pin in support_pins {\n if support_pin.strand_id == strand_id {\n return Err(StrandError::SelfSupportPin(strand_id));\n }\n if !seen_support_targets.insert(support_pin.strand_id) {\n return Err(StrandError::DuplicateSupportTarget {\n owner: strand_id,\n target: support_pin.strand_id,\n });\n }\n }\n\n Ok(())\n}\n\nimpl Strand

{\ndiff --git a/pnpm-lock.yaml b/pnpm-lock.yaml\nindex 9d7fae7..909ac98 100644\n--- a/pnpm-lock.yaml\n+++ b/pnpm-lock.yaml\n@@ -1,5 +1,3 @@\n-# SPDX-License-Identifier: Apache-2.0\n-# © James Ross Ω FLYING•ROBOTS \n lockfileVersion: '9.0'\n \n settings:\n@@ -36,8 +34,6 @@ importers:\n specifier: ^2.0.17\n version: 2.0.17(mermaid@11.14.0)(vitepress@1.6.4(@algolia/client-search@5.46.2)(@types/node@24.10.1)(@types/react@18.3.28)(postcss@8.5.6)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)(search-insights@2.17.3)(typescript@5.6.3))\n \n- crates/ttd-browser: {}\n-\n packages/echo-renderer-three:\n devDependencies:\n '@types/three':\n","/bin/bash -lc \"sed -n '120,230p' crates/warp-core/src/strand.rs; git diff -- pnpm-lock.yaml | head -40\"",[858],"50970",{"_524":859,"_93":572},"sed -n '120,230p' crates/warp-core/src/strand.rs; git diff -- pnpm-lock.yaml | head -40",{"_463":861,"_444":445,"_465":451},{"_491":862,"_483":850,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"sed -n '120,230p' crates/warp-core/src/strand.rs; git diff -- pnpm-lock.yaml | head -40\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":864,"_444":445,"_465":451},{"_466":-5,"_547":865,"_42":-5,"_469":-5,"_549":866,"_93":551},"gAAAAABqL8arZmLgts-d7LdeUOFttr0U3gQ6mOY-oY4bV1BK9L3JdpRGwFEP44k02a2_-CT-E5eAQKfFPcMBCBxoxfHa8ou5gtM-Dj0DZR0SF-RVsArQeS_JoprO-rtsIaxLqQDat5a8a8uAKWyE7zPyPLo4kfQNiBXbAXnVbGBKCdywhdkyvX0BlR3pldm_T1KEcnux5thPMp_lasXCDz27ehIN95dYc1XSCHbI3RnOtYsVFhpkeJn6Fh6zqXnf5knjxYc0oYd8mqyRiLc5uNr-sP7468Nv6RmJdaSCX0Deb2AhT6DsXySNpDjD63aRwQzROKqoZVX_xOXMBzaJNdIl32eADBX2gXhn-G0lMLWq4hju6ZJIMUserYzR5u7zbhRqBt9LSPEKB8bf5R5JfkhE_usRpieM1o0dOPHkMxl4mY6n9nWpBPKcgY2K7CKtO1LKZddEF_BLVA9H-TWeWTBdMTjranOyl3TrWeM-hCRlEQnMAeQcgNSiHRUzHyL5bawPCvxBALxuMSokIkSXkAlz3J_Om2RcAxTLB_rcSadXtC44t-tiE-WMUo-bGktQ6STbsZpDmQvRT7GRJzhhnI_nJ4tAXIaOvVex_BrNRy7c2OmtESxLF4370QEXZzsVEk4ioGDd8emdBae3GUoRrV0HJYWwCDCpaUdyj2B7YrFZMzR941AfoNtjBCYc5RrszU51dFQdPKFwPBxKfxHGLjrKBF9C9kJRkOudwbuyG42xs7t2i-I1ThFhYdaS8I4z8fLekzx3wNuzTRz6pDeQlzgTVDsOeUAVtJLwcVrnYsVhShUDE5g7ZByAjczQ8d7WIlgJUeNPtDuElrWdQzYnFG2s9jytU1t6b1vZYRuhOEYj8Bak7Arx6olr4fwbwO3zp4hQZvOiYx04k-FWLb3hCCNoUahTgLG3koNQMK8zTibSLQdYhKi-7PXI7-C0YZgQYO89UZwae8vqeh1Vt2CfRm57wtCBM9q98edJeOWS_eoANSpTZ4HECK8=",[],{"_463":868,"_444":445,"_465":451},{"_466":869,"_42":870,"_549":871,"_93":551},[],"rs_0219c042e5b77a1a016a2fc6ab05c881948ff7d96dd4c24817",[],{"_463":873,"_444":445,"_465":451},{"_483":874,"_42":-5,"_469":-5,"_485":875,"_93":487},"call_AWyRJbSPcodTfjbjH3iE8mYA","Chunk ID: 672c74\nWall time: 0.0005 seconds\nProcess exited with code 0\nOriginal token count: 1809\nOutput:\n\n\n\n# BEARING\n\nLast updated: 2026-06-15.\n\nThis signpost summarizes current direction. It does not create commitments or\nreplace backlog items, design docs, retros, or CLI status. If it disagrees with\ncode, the code wins and this file should be corrected.\n\nThe WARP paper-to-Echo noun map is maintained in\n`docs/design/warp-optic-implementation-map.md`.\n\nThe post-PR #545 strands and braids hardening roadmap is maintained in\n`docs/design/braids-and-strands-roadmap.md`.\n\nIts goalpost design packet is maintained under\n`docs/design/braids-and-strands-hardening/`.\n\nThe feature bar for the eventual `v0.1.0` release is maintained in\n`docs/design/v0.1.0-release-plan.md`.\n\nThe current external release gate is maintained in\n`docs/design/v0.1.0-jedit-release-gate.md`.\n\nTrusted runtime-control history is defined in\n`docs/design/trusted-runtime-control-history.md`.\n\nThe causal WAL doctrine and recovery design is defined in\n`docs/design/causal-wal-end-to-end.md`.\n\nThe Echo-owned file aperture design is defined in\n`docs/design/echo-owned-file-aperture.md`.\n\nThe WAL/WSC storage relationship is tracked in\n`docs/method/backlog/v0.1.0/PLATFORM_wal-wsc-storage-relationship.md`.\n\nThe next ten jedit release-gate slices are planned in\n`docs/design/v0.1.0-jedit-next-ten-slices.md`.\n\nThe current sequencing filter for audited work items is maintained in\n`docs/design/work-item-sequencing-and-prioritization.md`.\n\nThe filesystem lane for release-bar backlog cards is\n`docs/method/backlog/v0.1.0/`.\n\nThe production-core app-noun guard is `scripts/check-no-app-nouns-in-core.sh`.\nIt checks that hardcoded jedit/Stack Witness fixture shortcuts stay out of\nEcho crate source. The guard is intentionally production-source-scoped: tests\nand docs may still carry app-shaped fixtures as external-consumer examples,\nbut production Echo code must remain generic.\n\n## Current Bearing\n\nThe active architecture hardening focus is the post-PR #545 braids and strands\ncampaign. Track progress through the goalpost and slice checklist in\n`docs/design/braids-and-strands-roadmap.md`. Each goalpost has a focused design\ndocument under `docs/design/braids-and-strands-hardening/`; implementation PRs\nmust check off slices in the roadmap only when the slice actually lands.\n\nThis hardening campaign does not replace the `v0.1.0` external-app release\ngate. It protects the newly landed strand, braid, proof, sealed-member,\nidentity, witness, and plurality surfaces before more callers depend on them.\n\nEcho has a local witnessed intent pipeline into deterministic execution:\napplication ingress can become witnessed submission history, lawful admission\nevidence, ticketed runtime ingress, scheduler-owned handler dispatch, receipt\ncorrelation, and observable intent outcome.\n\nThe release priority remains proving that pipeline with `jedit` as a real external\nconsumer. The in-repo external fixture remains valuable, but it is no longer\nthe `v0.1.0` release gate. Echo is not ready to release until jedit can submit\nan application-owned contract intent, let a trusted Echo host authorize\nscheduler opportunities, observe the outcome, query a bounded reading, retain\nevidence, and replay the result without moving application nouns into Echo core.\n\nThe immediate durability hill is Echo's causal WAL: Echo may only claim what\nits WAL can recover. The WAL must make accepted submissions, tick outcomes,\nruntime posture, retained-material references, and side-effect authorization\n\n\n\n# METHOD\n\nThe Echo work doctrine: A backlog, a loop, and honest bookkeeping.\n\n## Principles\n\n- **The agent and the human sit at the same table.** Both matter. Both are named in every design.\n- **Determinism is binary.** A system is either deterministic or it is not. Tests prove the inevitability.\n- **The filesystem is the database.** A directory is a priority. A filename is an identity. Moving a file is a decision.\n- **Process is calm.** No sprints or velocity theater. A backlog tiered by judgment, and a loop for doing it well.\n\n## Structure\n\n| Signpost | Role |\n| :-------------------- | :-------------------------------------------------- |\n| **`README.md`** | Public front door and project identity. |\n| **`GUIDE.md`** | Orientation and productive-fast path. |\n| **`BEARING.md`** | Current direction and active tensions. |\n| **`VISION.md`** | Core tenets and the causal mission. |\n| **`ARCHITECTURE.md`** | Authoritative structural reference. |\n| **`CONTINUUM.md`** | Platform memo: hot/cold split and shared contracts. |\n| **`METHOD.md`** | Repo work doctrine (this document). |\n\n## Backlog\n\nGitHub Issues are the live backlog. Labels are the index.\n\n| Label | Purpose |\n| :-------------------- | :----------------------------- |\n| **`lane:inbox`** | Unprocessed work or raw ideas. |\n| **`lane:asap`** | Pull into a cycle soon. |\n| **`lane:up-next`** | Queued after `asap`. |\n| **`lane:cool-ideas`** | Uncommitted experiments. |\n| **`lane:bad-code`** | Technical debt. |\n| **`lane:release`** | Release-bar work. |\n\nHistorical filesystem backlog cards are archived under\n`docs/method/graveyard/github-issue-migration/`. The `docs/method/backlog/`\ndirectory remains only as a compatibility marker for legacy `cargo xtask\nmethod ...` workspace discovery. Do not add new live work cards there.\n\n## The Cycle Loop\n\n```mermaid\nstateDiagram-v2\n direction LR\n [*] --> Pull: issue\n Pull --> Branch: cycle/\n Branch --> Design: template\n Design --> Red: failing tests\n Red --> Green: passing tests\n Green --> Retro: findings/debt\n Retro --> Ship: PR to main\n Ship --> [*]\n```\n\n1. **Pull**: Choose a GitHub Issue with Method labels. Create or update a\n design doc under `docs/design/` and link it to the issue.\n2. **Branch**: Create a branch named from the issue title, or\n `cycle/-` when the work is explicitly cycle-shaped.\n3. **Design**: Use `docs/method/design-template.md`.\n4. **Red**: Write failing tests from the design's playback questions.\n5. **Green**: Make them pass. Fix determinism drift with DIND when relevant.\n6. **Witness**: Record the reproducible proof.\n7. **Retro**: Document drift and follow-on debt.\n8. **Ship**: Open a PR to `main`.\n\nDesign docs may define intent, but they do not prove implementation. Runtime\nand product work must include at least one executable behavior witness such as\nRust API behavior, CLI output, WASM ABI behavior, schema validation, WAL/WSC\nrecovery, DIND determinism, or generated contract behavior.\n\n## Naming Convention\n\nIssues use readable titles and Method labels. Branches use lowercase slugs of\nthe issue title unless a cycle id is explicitly assigned.\n\nfind: ‘backlog/asap’: No such file or directory\n",{"_463":877,"_444":445,"_465":451},{"_483":878,"_42":-5,"_469":-5,"_485":879,"_93":487},"call_Fh812Si5eo9QJQbRvODlLb0x","Chunk ID: 29e0f6\nWall time: 0.0000 seconds\nProcess exited with code 0\nOriginal token count: 1375\nOutput:\n\n\n\n# AGENTS\n\nThis guide is for AI agents and human operators recovering context in the Echo repository.\n\n## Architecture North Star\n\nEcho is not a graph database, app framework, sync daemon, or mutable state\nserver. Echo is a deterministic WARP runtime over witnessed causal history.\n\nThe durable territory is admitted causal history: transitions, frontiers, lane\nidentities, payload hashes, receipts, witnesses, checkpoints, suffixes, and\nretained boundary artifacts. Graphs, files, editor buffers, UI state, and debug\nviews are materialized readings emitted by observers or optics over that\nhistory. They may be cached, retained, transported, compared, or revealed, but\nthey are not the substrate ontology.\n\nPublic Echo surfaces should follow the WARP optic shape:\n\n```text\nexplicit causal basis/site\n+ bounded aperture\n+ law\n+ support, capability, budget, and evidence posture\n-> witnessed hologram\n```\n\nExternal callers propose explicit-base intents or observe through bounded\noptics. Echo admits, stages, pluralizes, conflicts, or obstructs those claims\nunder named law and emits receipts, reading envelopes, witnesses, or retained\nshells. Transport is witnessed suffix admission, not state sync. Application\nnouns belong in authored contracts and generated adapters, not in Echo core.\n\nKeep these sentences in view when changing architecture, docs, or APIs:\n\n```text\nThere is witnessed causal history.\nWARP optics chart it.\nHolograms witness those charts.\nMaterialized graphs are optional readings.\nContinuum is the protocol for lawful causal-history exchange.\n```\n\n## Git Rules\n\n- **NEVER** amend commits.\n- **NEVER** rebase or force-push.\n- **NEVER** push to `main` without explicit permission.\n- Always use standard commits and regular pushes.\n\n## Documentation & Planning Map\n\nDo not audit the repository by recursively walking the filesystem. Follow the authoritative manifests:\n\n### 1. The Entrance\n\n- **`README.md`**: Public front door, core value prop, and quick tour.\n- **`GUIDE.md`**: Orientation and productive-fast path.\n- **`docs/index.md`**: VitePress documentation map.\n\n### 2. The Bedrock\n\n- **`ARCHITECTURE.md`**: Authoritative structural reference (Hexagonal, Core, Memory).\n- **`VISION.md`**: Core tenets and the causal mission.\n- **`METHOD.md`**: Repo work doctrine (Backlog lanes, Cycle loop).\n\n### 3. The Direction\n\n- **`docs/BEARING.md`**: Current execution gravity and active tensions.\n- **`docs/design/ROADMAP.md`**: Broad strategic horizon and targets.\n- **`backlog/`**: The active source of truth for pending work.\n\n### 4. The Proof\n\n- **`CHANGELOG.md`**: Historical truth of merged behavior.\n- **`cargo xtask dind`**: Determinism convergence verification.\n\n## Context Recovery Protocol\n\nWhen starting a new session or recovering from context loss:\n\n1. **Read `docs/BEARING.md`** to find the current execution gravity.\n2. **Read `METHOD.md`** to understand the work doctrine.\n3. **Check `backlog/asap/`** for imminent work.\n4. **Check `git log -n 5` and `git status`** to verify the current branch state.\n\n## Executable Claim Protocol\n\nEngineering work must converge around executable evidence, not broad repository\ninterpretation. Before editing code, reduce the task to one executable claim:\n\n1. **Bound the Claim**: State the behavior, invariant, or artifact that must\n change.\n2. **Name the Witness**: Identify the smallest test, check, script, compile\n contract, golden vector, schema validation, or artifact inspection that can\n prove the claim.\n3. **Run the Witness When Feasible**: Prefer a failing witness before the fix.\n If the witness cannot execute because the repository is already broken,\n repair only the minimal compile/runtime blocker required to run it.\n4. **Do Not Expand from an Unblocker**: Do not turn a compile blocker into\n nearby architecture cleanup, docs cleanup, lint cleanup, migration sweep, or\n opportunistic refactor.\n5. **Green the Claim**: Implement the smallest fix, rerun the witness, and run\n only directly relevant surrounding checks unless broader validation is\n explicitly requested.\n6. **Stop on Green**: When the witness passes and the requested scope is\n satisfied, stop. Do not inspect more PR comments, audit more files, or clean\n unrelated residue without a new executable claim.\n\nIf unrelated failures remain, isolate them in the final report instead of\nabsorbing them into the task. Report files changed, symbols or behavior changed,\nwitness commands, pass/fail results, and intentional non-actions such as no\ncommit, no push, or no PR comment.\n\n## End of Turn Checklist\n\nAfter altering files:\n\n1. **Verify Truth**: Ensure documentation is updated if behavior or structure changed.\n2. **Log Debt**: Add follow-on backlog items to `bad-code/` or `cool-ideas/`.\n3. **Commit**: Use focused, conventional commit messages. Propose a draft before executing.\n4. **Validate**: Run `cargo check` and relevant tests.\n\n---\n\n**The goal is inevitability. Every feature is defined by its tests.**\n M pnpm-lock.yaml\neb1f2c6 test(echo-wesley-gen): tolerate early cli pipe close\n26ef1b7 fix(warp-core): render braid transitions as human text\n1422672 fix(warp-core): enforce strand writer-head invariants\n5106267 feat(warp-core): harden strand construction and typed braid failures\n3d6fdba Merge pull request #546 from flyingrobots/roadmap/braids-strands-hardening\n",{"_463":881,"_444":445,"_465":451},{"_522":882,"_524":883,"_526":884,"_528":529,"_449":32,"_530":32,"_42":878,"_531":885,"_533":534,"_456":114,"_93":535},"\n\n\n# AGENTS\n\nThis guide is for AI agents and human operators recovering context in the Echo repository.\n\n## Architecture North Star\n\nEcho is not a graph database, app framework, sync daemon, or mutable state\nserver. Echo is a deterministic WARP runtime over witnessed causal history.\n\nThe durable territory is admitted causal history: transitions, frontiers, lane\nidentities, payload hashes, receipts, witnesses, checkpoints, suffixes, and\nretained boundary artifacts. Graphs, files, editor buffers, UI state, and debug\nviews are materialized readings emitted by observers or optics over that\nhistory. They may be cached, retained, transported, compared, or revealed, but\nthey are not the substrate ontology.\n\nPublic Echo surfaces should follow the WARP optic shape:\n\n```text\nexplicit causal basis/site\n+ bounded aperture\n+ law\n+ support, capability, budget, and evidence posture\n-> witnessed hologram\n```\n\nExternal callers propose explicit-base intents or observe through bounded\noptics. Echo admits, stages, pluralizes, conflicts, or obstructs those claims\nunder named law and emits receipts, reading envelopes, witnesses, or retained\nshells. Transport is witnessed suffix admission, not state sync. Application\nnouns belong in authored contracts and generated adapters, not in Echo core.\n\nKeep these sentences in view when changing architecture, docs, or APIs:\n\n```text\nThere is witnessed causal history.\nWARP optics chart it.\nHolograms witness those charts.\nMaterialized graphs are optional readings.\nContinuum is the protocol for lawful causal-history exchange.\n```\n\n## Git Rules\n\n- **NEVER** amend commits.\n- **NEVER** rebase or force-push.\n- **NEVER** push to `main` without explicit permission.\n- Always use standard commits and regular pushes.\n\n## Documentation & Planning Map\n\nDo not audit the repository by recursively walking the filesystem. Follow the authoritative manifests:\n\n### 1. The Entrance\n\n- **`README.md`**: Public front door, core value prop, and quick tour.\n- **`GUIDE.md`**: Orientation and productive-fast path.\n- **`docs/index.md`**: VitePress documentation map.\n\n### 2. The Bedrock\n\n- **`ARCHITECTURE.md`**: Authoritative structural reference (Hexagonal, Core, Memory).\n- **`VISION.md`**: Core tenets and the causal mission.\n- **`METHOD.md`**: Repo work doctrine (Backlog lanes, Cycle loop).\n\n### 3. The Direction\n\n- **`docs/BEARING.md`**: Current execution gravity and active tensions.\n- **`docs/design/ROADMAP.md`**: Broad strategic horizon and targets.\n- **`backlog/`**: The active source of truth for pending work.\n\n### 4. The Proof\n\n- **`CHANGELOG.md`**: Historical truth of merged behavior.\n- **`cargo xtask dind`**: Determinism convergence verification.\n\n## Context Recovery Protocol\n\nWhen starting a new session or recovering from context loss:\n\n1. **Read `docs/BEARING.md`** to find the current execution gravity.\n2. **Read `METHOD.md`** to understand the work doctrine.\n3. **Check `backlog/asap/`** for imminent work.\n4. **Check `git log -n 5` and `git status`** to verify the current branch state.\n\n## Executable Claim Protocol\n\nEngineering work must converge around executable evidence, not broad repository\ninterpretation. Before editing code, reduce the task to one executable claim:\n\n1. **Bound the Claim**: State the behavior, invariant, or artifact that must\n change.\n2. **Name the Witness**: Identify the smallest test, check, script, compile\n contract, golden vector, schema validation, or artifact inspection that can\n prove the claim.\n3. **Run the Witness When Feasible**: Prefer a failing witness before the fix.\n If the witness cannot execute because the repository is already broken,\n repair only the minimal compile/runtime blocker required to run it.\n4. **Do Not Expand from an Unblocker**: Do not turn a compile blocker into\n nearby architecture cleanup, docs cleanup, lint cleanup, migration sweep, or\n opportunistic refactor.\n5. **Green the Claim**: Implement the smallest fix, rerun the witness, and run\n only directly relevant surrounding checks unless broader validation is\n explicitly requested.\n6. **Stop on Green**: When the witness passes and the requested scope is\n satisfied, stop. Do not inspect more PR comments, audit more files, or clean\n unrelated residue without a new executable claim.\n\nIf unrelated failures remain, isolate them in the final report instead of\nabsorbing them into the task. Report files changed, symbols or behavior changed,\nwitness commands, pass/fail results, and intentional non-actions such as no\ncommit, no push, or no PR comment.\n\n## End of Turn Checklist\n\nAfter altering files:\n\n1. **Verify Truth**: Ensure documentation is updated if behavior or structure changed.\n2. **Log Debt**: Add follow-on backlog items to `bad-code/` or `cool-ideas/`.\n3. **Commit**: Use focused, conventional commit messages. Propose a draft before executing.\n4. **Validate**: Run `cargo check` and relevant tests.\n\n---\n\n**The goal is inevitability. Every feature is defined by its tests.**\n M pnpm-lock.yaml\neb1f2c6 test(echo-wesley-gen): tolerate early cli pipe close\n26ef1b7 fix(warp-core): render braid transitions as human text\n1422672 fix(warp-core): enforce strand writer-head invariants\n5106267 feat(warp-core): harden strand construction and typed braid failures\n3d6fdba Merge pull request #546 from flyingrobots/roadmap/braids-strands-hardening\n","/bin/bash -lc 'cat AGENTS.md && git status --short && git log -n 5 --oneline'",[886],"36970",{"_524":887,"_93":572},"cat AGENTS.md && git status --short && git log -n 5 --oneline",{"_463":889,"_444":445,"_465":451},{"_522":890,"_524":891,"_526":892,"_528":529,"_449":32,"_530":32,"_42":874,"_531":893,"_533":534,"_456":114,"_93":535},"\n\n\n# BEARING\n\nLast updated: 2026-06-15.\n\nThis signpost summarizes current direction. It does not create commitments or\nreplace backlog items, design docs, retros, or CLI status. If it disagrees with\ncode, the code wins and this file should be corrected.\n\nThe WARP paper-to-Echo noun map is maintained in\n`docs/design/warp-optic-implementation-map.md`.\n\nThe post-PR #545 strands and braids hardening roadmap is maintained in\n`docs/design/braids-and-strands-roadmap.md`.\n\nIts goalpost design packet is maintained under\n`docs/design/braids-and-strands-hardening/`.\n\nThe feature bar for the eventual `v0.1.0` release is maintained in\n`docs/design/v0.1.0-release-plan.md`.\n\nThe current external release gate is maintained in\n`docs/design/v0.1.0-jedit-release-gate.md`.\n\nTrusted runtime-control history is defined in\n`docs/design/trusted-runtime-control-history.md`.\n\nThe causal WAL doctrine and recovery design is defined in\n`docs/design/causal-wal-end-to-end.md`.\n\nThe Echo-owned file aperture design is defined in\n`docs/design/echo-owned-file-aperture.md`.\n\nThe WAL/WSC storage relationship is tracked in\n`docs/method/backlog/v0.1.0/PLATFORM_wal-wsc-storage-relationship.md`.\n\nThe next ten jedit release-gate slices are planned in\n`docs/design/v0.1.0-jedit-next-ten-slices.md`.\n\nThe current sequencing filter for audited work items is maintained in\n`docs/design/work-item-sequencing-and-prioritization.md`.\n\nThe filesystem lane for release-bar backlog cards is\n`docs/method/backlog/v0.1.0/`.\n\nThe production-core app-noun guard is `scripts/check-no-app-nouns-in-core.sh`.\nIt checks that hardcoded jedit/Stack Witness fixture shortcuts stay out of\nEcho crate source. The guard is intentionally production-source-scoped: tests\nand docs may still carry app-shaped fixtures as external-consumer examples,\nbut production Echo code must remain generic.\n\n## Current Bearing\n\nThe active architecture hardening focus is the post-PR #545 braids and strands\ncampaign. Track progress through the goalpost and slice checklist in\n`docs/design/braids-and-strands-roadmap.md`. Each goalpost has a focused design\ndocument under `docs/design/braids-and-strands-hardening/`; implementation PRs\nmust check off slices in the roadmap only when the slice actually lands.\n\nThis hardening campaign does not replace the `v0.1.0` external-app release\ngate. It protects the newly landed strand, braid, proof, sealed-member,\nidentity, witness, and plurality surfaces before more callers depend on them.\n\nEcho has a local witnessed intent pipeline into deterministic execution:\napplication ingress can become witnessed submission history, lawful admission\nevidence, ticketed runtime ingress, scheduler-owned handler dispatch, receipt\ncorrelation, and observable intent outcome.\n\nThe release priority remains proving that pipeline with `jedit` as a real external\nconsumer. The in-repo external fixture remains valuable, but it is no longer\nthe `v0.1.0` release gate. Echo is not ready to release until jedit can submit\nan application-owned contract intent, let a trusted Echo host authorize\nscheduler opportunities, observe the outcome, query a bounded reading, retain\nevidence, and replay the result without moving application nouns into Echo core.\n\nThe immediate durability hill is Echo's causal WAL: Echo may only claim what\nits WAL can recover. The WAL must make accepted submissions, tick outcomes,\nruntime posture, retained-material references, and side-effect authorization\n\n\n\n# METHOD\n\nThe Echo work doctrine: A backlog, a loop, and honest bookkeeping.\n\n## Principles\n\n- **The agent and the human sit at the same table.** Both matter. Both are named in every design.\n- **Determinism is binary.** A system is either deterministic or it is not. Tests prove the inevitability.\n- **The filesystem is the database.** A directory is a priority. A filename is an identity. Moving a file is a decision.\n- **Process is calm.** No sprints or velocity theater. A backlog tiered by judgment, and a loop for doing it well.\n\n## Structure\n\n| Signpost | Role |\n| :-------------------- | :-------------------------------------------------- |\n| **`README.md`** | Public front door and project identity. |\n| **`GUIDE.md`** | Orientation and productive-fast path. |\n| **`BEARING.md`** | Current direction and active tensions. |\n| **`VISION.md`** | Core tenets and the causal mission. |\n| **`ARCHITECTURE.md`** | Authoritative structural reference. |\n| **`CONTINUUM.md`** | Platform memo: hot/cold split and shared contracts. |\n| **`METHOD.md`** | Repo work doctrine (this document). |\n\n## Backlog\n\nGitHub Issues are the live backlog. Labels are the index.\n\n| Label | Purpose |\n| :-------------------- | :----------------------------- |\n| **`lane:inbox`** | Unprocessed work or raw ideas. |\n| **`lane:asap`** | Pull into a cycle soon. |\n| **`lane:up-next`** | Queued after `asap`. |\n| **`lane:cool-ideas`** | Uncommitted experiments. |\n| **`lane:bad-code`** | Technical debt. |\n| **`lane:release`** | Release-bar work. |\n\nHistorical filesystem backlog cards are archived under\n`docs/method/graveyard/github-issue-migration/`. The `docs/method/backlog/`\ndirectory remains only as a compatibility marker for legacy `cargo xtask\nmethod ...` workspace discovery. Do not add new live work cards there.\n\n## The Cycle Loop\n\n```mermaid\nstateDiagram-v2\n direction LR\n [*] --> Pull: issue\n Pull --> Branch: cycle/\n Branch --> Design: template\n Design --> Red: failing tests\n Red --> Green: passing tests\n Green --> Retro: findings/debt\n Retro --> Ship: PR to main\n Ship --> [*]\n```\n\n1. **Pull**: Choose a GitHub Issue with Method labels. Create or update a\n design doc under `docs/design/` and link it to the issue.\n2. **Branch**: Create a branch named from the issue title, or\n `cycle/-` when the work is explicitly cycle-shaped.\n3. **Design**: Use `docs/method/design-template.md`.\n4. **Red**: Write failing tests from the design's playback questions.\n5. **Green**: Make them pass. Fix determinism drift with DIND when relevant.\n6. **Witness**: Record the reproducible proof.\n7. **Retro**: Document drift and follow-on debt.\n8. **Ship**: Open a PR to `main`.\n\nDesign docs may define intent, but they do not prove implementation. Runtime\nand product work must include at least one executable behavior witness such as\nRust API behavior, CLI output, WASM ABI behavior, schema validation, WAL/WSC\nrecovery, DIND determinism, or generated contract behavior.\n\n## Naming Convention\n\nIssues use readable titles and Method labels. Branches use lowercase slugs of\nthe issue title unless a cycle id is explicitly assigned.\n\nfind: ‘backlog/asap’: No such file or directory\n","/bin/bash -lc \"sed -n '1,80p' docs/BEARING.md; sed -n '1,80p' METHOD.md; find backlog/asap -maxdepth 2 -type f -print | sort | sed -n '1,40p'\"",[894,895,896],"48697",{"_524":903,"_182":904,"_162":905,"_93":540},{"_524":900,"_182":901,"_162":902,"_93":540},{"_524":897,"_162":898,"_93":899},"find backlog/asap -maxdepth 2 -type f -print","asap","listFiles","sed -n '1,80p' METHOD.md","METHOD.md","/workspace/echo/METHOD.md","sed -n '1,80p' docs/BEARING.md","BEARING.md","/workspace/echo/docs/BEARING.md",{"_463":907,"_444":445,"_465":451},{"_491":908,"_483":874,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"sed -n '1,80p' docs/BEARING.md; sed -n '1,80p' METHOD.md; find backlog/asap -maxdepth 2 -type f -print | sort | sed -n '1,40p'\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":910,"_444":445,"_465":451},{"_491":911,"_483":878,"_42":-5,"_469":-5,"_182":544,"_513":-5,"_93":515},"{\"cmd\":\"cat AGENTS.md && git status --short && git log -n 5 --oneline\",\"workdir\":\"/workspace/echo\",\"yield_time_ms\":1000,\"max_output_tokens\":6000}",{"_463":913,"_444":445,"_465":451},{"_466":-5,"_547":914,"_42":-5,"_469":-5,"_549":915,"_93":551},"gAAAAABqL8apg3AiYbV2-lQALQNvQl-DbI1-eHk6NOXyckTuQVCW1YjyWYT0SMYTob53bmNkyPm1R5WXQIhhuMYY6M2zb4pEjSe6SuCzq7gdDsjAvprjILTiz65qYGkr281_Rim6N6UHnqlfR3TLFMBWbJJ52CjgcbgH8oKTJ5GN_YgU21kfyGsJGpa7G-195LRuI1V7VE3dnKb3t1nCK5PGhhXfFIYdzQFfpkjCm_5EM5Tt-c-D3RFHUd6BDacaDkuR_dgV1b3kzyWr7vpCqcO9n6Vn6UdEVapeR6oAycaATQG2l_HRlgifi2SXdS6H3CjTRL0Y6vaLRQxgOobORMwG1_beesYlPbenAbeN5-MvNlerv1wCxorotRN4-8R8_8Wd9CwSU4ZmsspU-EUJEar3Q9BYnya81Yoxfapcm7bZXSXNANq_71_LUo50gVH-v57PA5m0WLkrkzKTiEpWnfKeFt4J7pYgf_WZSF7lQc8AHT2CX3eJbH08it5ZjAVy_yM_Wg3PSwNDTVG-at_HC3cS8LGyk5rAhLlGqdYzlvSx8GNTqeRXP255xuQwOmY0kUi9GgmiwyqtcbJEReLj8Co-q5Ck28MFRL-kJyruFmUJZsTN7yesGIA9zYJwR07hlF3Og-AVb0TqmRBruVx1kqDjn9KnxoAtaz0itNOOw7--vF-T_UoHbE6-Mas1txf90l7vowDilmYY-AwQ5T_4ynA4qyvL0ZGYK9sIF7BfBuNoXKjOVHRHljlO2p2B1KTIP0oltE1V0tptBu_t101XsqKC_oCNh0JHUnIjqhfv-oiHxWk78mC40LmvwZnQiaHbg0pF4JPZc7fEBf2njjxiae6jk74ntBfUnxeRYX7W-wLk6kZ1eTuqlv_44zvbiKL_Rmb1IKTGBoOqT0_60AzE5LCGdPcryXkTqs06Plu51v88lKZ-yaIfTWFWbp7e2XnhPhSLtNf6nTix",[],{"_463":917,"_444":445,"_465":451},{"_466":918,"_42":919,"_549":920,"_93":551},[],"rs_0219c042e5b77a1a016a2fc6a5f1f88194858309a91c9ecb3b",[],{"_463":922,"_444":445,"_465":451},{"_923":-5,"_466":924,"_42":925,"_93":926},"clientId",[927],"5bb01221-42b6-489e-8acf-0ad555e2ba1e","userMessage",{"_46":928,"_929":930,"_93":46},"\nYou are Codex, assisting with follow-up actions on a GitHub pull request.\n\nInput blocks\n------------\n… # The comment or event that invoked you\n… # PR metadata (title, branches, SHAs, status, etc.)\n… # Comments / Reviews for the PR\n\nPossible triggers\n• A user mentions you (@codex)\n• A reviewer requests changes\n• An automated or internal system asks you to review / update\n\nGuidelines\n1. Read the block first and treat it as the primary intent.\n2. Always consult and to interpret and validate the trigger; use only context that materially affects your decision and ignore the rest.\n3. If the trigger comes from a comment thread, the first block will be combined earlier comments from the same thread, clearly indicated with `Comments in the same thread`.\n4. Remaining blocks are in chronological order, oldest first, one block per comment.\n5. When the trigger relates to CI/build status (e.g., “help me fix CI”), incorporate CI/status details found in as supporting context.\n6. If code change is needed, generate a **new** PR with the requested changes. The PR title and message should summarize the changes **on top** of the original pull request.\n@codex self-audit found one new documentation precision issue while reviewing the current PR head.\n\n| ID | Severity | Source | File | Lines | Issue | Mitigation |\n| --- | --- | --- | --- | --- | --- | --- |\n| SELF-01 | P5 | Self | `crates/warp-core/src/strand.rs` | constructor docs around `Strand::new(...)` errors | The public constructor now rejects missing/multiple v1 writer heads, but the `# Errors` docs only mention wrong-worldline heads and omit cardinality. | Update the constructor error docs to state the v1 exactly-one-writer-head invariant explicitly. |\n{\"title\":\"Harden strand construction and typed braid failures\",\"body\":\"## Summary\\n\\n- implement Goalpost 1 of the braids/strands hardening roadmap\\n- move `Strand

` public struct-literal construction behind `Strand::new(...)` plus read-only accessors\\n- validate retained posture and typestate/runtime posture coherence before constructing typed strands\\n- replace proof validation strings with structured `ProofError`\\n- replace braid invalid-transition action strings with `BraidTransitionKind`\\n- thread typed proof errors through `BraidShellError::ProofShapeValidationFailed`\\n- update public API tests, strand fixture builders, changelog, and the roadmap checklist\\n\\n## Why\\n\\nPR #545 made strands and braids law-bearing surfaces, but `Strand

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📥 Commits
\\n> \\n> Reviewing files that changed from the base of the PR and between 26ef1b7f7d227022ab537d75da9b8e2c83cd1883 and eb1f2c68d8b55b9815bd64dcd7dc17d03e329432.\\n> \\n>
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📝 Walkthrough
\\n\\n## Walkthrough\\n\\nImplements GP1 of the braids-and-strands hardening roadmap: `Strand
` fields are restricted to `pub(crate)`, a posture-aware `validate_local_strand_invariants` function is introduced, and a `Strand::new` constructor enforces all local invariants. `ProofEnvelope::validate_shape` switches from `String` errors to a structured `ProofError` enum; `BraidError::InvalidTransition` replaces `action: String` with a typed `BraidTransitionKind`. All call sites, tests, and design docs are updated accordingly.\\n\\n## Changes\\n\\n**GP1: Lawful Construction and Typed Failures**\\n\\n| Layer / File(s) | Summary |\\n|---|---|\\n| **Typed proof error contracts**
`crates/warp-core/src/proof.rs`, `crates/warp-core/src/lib.rs`, `crates/warp-core/src/braid_shell.rs` | Adds `VerificationFailureCode` and `ProofError` enums via `thiserror`; `ProofEnvelope::validate_shape` returns `Result<(), ProofError>`; `BraidShellError::ProofShapeValidationFailed` carries `ProofError` instead of `String`; both types re-exported from `lib.rs`. |\\n| **Typed BraidTransitionKind and InvalidTransition update**
`crates/warp-core/src/braid.rs` | Adds `BraidTransitionKind` enum with `Display`; `BraidError::InvalidTransition` switches from `action: String` to `transition: BraidTransitionKind`; all three `Braid::apply` error sites updated. |\\n| **Strand field encapsulation and invariant-enforcing constructor**
`crates/warp-core/src/strand.rs` | `Strand
` fields changed to `pub(crate)`; `validate_local_strand_invariants::
()` added to enforce posture coherence, worldline distinctness, v1 writer-head cardinality/ownership, and support-pin constraints; `pub fn new(...)` constructor and getter accessors exposed; `StrandRegistry::insert` delegates to shared validator. |\\n| **Coordinator wired to Strand::new**
`crates/warp-core/src/coordinator.rs` | `WorldlineRuntime::fork_strand` replaces struct literal construction with `Strand::new(...)`; new regression test asserts empty `writer_heads` is rejected and all partial state is rolled back. |\\n| **Braid internal + public API tests**
`crates/warp-core/src/braid.rs`, `crates/warp-core/tests/braid_public_api_tests.rs` | Three internal unit tests updated to match `BraidTransitionKind` fields; new public API tests assert typed `InvalidTransition` errors, human-readable display strings, and typed `ProofError` variants from `validate_shape`. |\\n| **BraidShell proof validation tests**
`crates/warp-core/src/braid_shell.rs` | Wildcard proof-error matches replaced with structured `ProofError::PublicInputsMismatch`, `ProofError::EmptyPayload`, and `ProofError::UnsupportedKind` assertions. |\\n| **Strand contract tests refactored to constructor/accessor API**
`crates/warp-core/tests/strand_contract_tests.rs` | Removes `make_test_strand_raw`, introduces `make_test_strand_with_parts` using `Strand::new`; all field accesses replaced with accessor calls; new constructor rejection tests added for INV-S7, INV-S8, and `Shared` posture without admission scope. |\\n| **Design docs and changelog**
`CHANGELOG.md`, `docs/design/braids-and-strands-roadmap.md`, `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md` | Goalpost 1 status set to \\\"implemented\\\"; GP1-S1 through GP1-S5 checked off in the roadmap tracker; two CHANGELOG entries added. |\\n\\n## Estimated code review effort\\n\\n🎯 4 (Complex) | ⏱️ ~60 minutes\\n\\n## Possibly related PRs\\n\\n- [flyingrobots/echo#315](https://github.com/flyingrobots/echo/pull/315): Introduced the original `Strand` module and `StrandRegistry`/`Strand` APIs that this PR directly tightens by encapsulating fields and enforcing construction invariants.\\n- [flyingrobots/echo#545](https://github.com/flyingrobots/echo/pull/545): Overlaps directly with the typed braid lifecycle/proof error refactoring and posture-validated strand construction that this PR completes.\\n\\n## Poem\\n\\n> 🔒 No more forging strands by hand,\\n> the fields are locked, the law has land.\\n> `BraidTransitionKind` says what went wrong,\\n> `ProofError` typed, the contract's strong.\\n> GP1: checked — the invariants hold,\\n> `Strand::new` guards every fold. 🧵\\n\\n
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✅ Passed checks (5 passed)
\\n\\n| Check name | Status | Explanation |\\n| :------------------------: | :------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\\n| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |\\n| Title check | ✅ Passed | The title directly and accurately describes the main objective of the PR: hardening strand construction and implementing typed braid failures, which aligns with the core changes across strand.rs, braid.rs, and proof.rs. |\\n| Docstring Coverage | ✅ Passed | Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. |\\n| Linked Issues check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\\n| Out of Scope Changes check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\\n\\n
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✨ Finishing Touches
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\\n\\n- [ ] Create PR with unit tests\\n- [ ] Commit unit tests in branch `hardening/lawful-construction-typed-failures`\\n\\n
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\\n\\n\\n_{Comment `@coderabbitai help` to get the list of available commands and usage tips.}\\n\\n\\n\\n\\n\\n\\n\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"## Self-Code Review: Code Lawyer Pass\\n\\n@codex Please confirm or challenge these findings. I reviewed PR #548 against `origin/main` after a clean worktree gate and `git fetch origin`.\\n\\n| Severity | File / lines | Infraction | Evidence | Recommended mitigation prompt |\\n| --- | --- | --- | --- | --- |\\n| P1 | `crates/warp-core/src/strand.rs:167`, `crates/warp-core/src/strand.rs:192`, `crates/warp-core/src/strand.rs:214`, `crates/warp-core/src/strand.rs:234`, `crates/warp-core/src/strand.rs:807`, `crates/warp-core/src/strand.rs:821`, `crates/warp-core/src/coordinator.rs:1610` | The new law-bearing constructor boundary still admits strands with zero or multiple writer heads, and the production fork path still builds a `Strand` through a crate-internal struct literal instead of the constructor. | The field docs state `writer_heads` has cardinality 1 in v1, but `Strand::new(...)` only verifies each head belongs to `child_worldline_id`; it never checks `writer_heads.len() == 1`. `StrandRegistry::insert(...)` repeats the ownership check but also does not check cardinality. `WorldlineRuntime::fork_strand(...)` constructs `Strand { ... }` directly and relies on registry insertion, so any constructor-only invariant added later can be bypassed by production code. | `Fix the strand construction boundary so v1 writer-head cardinality is enforced through one shared local-invariant validator. Add failing tests showing `Strand::new(...)` rejects zero writer heads and two writer heads. Have `Strand::new(...)` and `StrandRegistry::insert(...)` both call the same validator, and replace the production `fork_strand` struct literal with `Strand::new(...)` so production construction goes through the named door.` |\\n| P4 | `crates/warp-core/src/braid.rs:57` | `BraidError` display text regressed from human action phrases to Rust debug variant names. | The roadmap says typed transition failures should preserve stable display text for humans while exposing typed variants to callers. The old display produced phrases like `cannot weave member`; the new `#[error(\\\"cannot transition braid state: cannot {transition:?} ...\\\")]` renders `cannot WeaveMember`, which is typed but not human-facing. | `Implement `Display` for `BraidTransitionKind` using human action phrases such as `create braid`, `weave member`, `finalize settlement`, and `collapse braid`, then change the error format to `{transition}`. Add a regression asserting the display string remains human-readable while behavior tests continue matching `BraidTransitionKind` variants.` |\\n\\nSummary: the PR is directionally correct and all local/remote checks are green, but Goalpost 1 should not be considered complete until the strand constructor boundary closes the v1 writer-head cardinality gap and production strand creation uses the named constructor path.\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Follow-up on the self-review findings. @codex please sanity-check the closure.\\n\\n| Finding | Severity | Resolution | Commit |\\n| --- | --- | --- | --- |\\n| `Strand
` constructor/registry did not enforce the v1 single-writer-head invariant, and runtime fork bypassed `Strand::new(...)`. | P1 | Added shared local strand invariant validation, enforced exactly one writer head in both `Strand::new(...)` and `StrandRegistry::insert(...)`, routed `WorldlineRuntime::fork_strand(...)` through `Strand::new(...)`, and added constructor plus runtime rollback regressions. | `14226725` |\\n| `BraidTransitionKind` leaked enum debug text in `BraidError::InvalidTransition` display output. | P4 | Added human-facing `Display` for `BraidTransitionKind`, switched the error text to `{transition}`, and added public API display regression coverage. | `26ef1b7f` |\\n\\nValidation:\\n\\n- RED witnesses failed before implementation: missing writer head, multiple writer heads, empty-head runtime fork rollback, and braid transition display.\\n- GREEN focused witnesses passed after implementation.\\n- `cargo fmt --all -- --check`\\n- `cargo test -p warp-core --test strand_contract_tests` (31/31)\\n- `cargo test -p warp-core --test braid_public_api_tests` (4/4)\\n- `cargo test -p warp-core --lib` (561/561)\\n- `cargo test -p warp-core --doc` (23 passed / 6 ignored)\\n- `cargo clippy -p warp-core --lib -- -D warnings`\\n- `git diff --check`\\n- `scripts/check_spdx.sh`\\n- `pnpm exec markdownlint-cli2 CHANGELOG.md`\\n- pre-push exact Rust slices passed on push.\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Additional CI follow-up on head `eb1f2c68`:\\n\\n- The first remote rerun exposed a CI-sensitive harness race in `echo-wesley-gen` generation tests: `--no-std --contract-host` is expected to fail before reading stdin, so the parent can observe `BrokenPipe` while writing the fixture IR.\\n- Fixed the test harness to tolerate `ErrorKind::BrokenPipe` for early CLI exits and still assert on the child status/stderr. Commit: `eb1f2c68`.\\n- Local validation: `cargo test -p echo-wesley-gen --test generation test_contract_host_generation_rejects_no_std -- --exact --nocapture` and full `cargo test -p echo-wesley-gen --test generation` both pass; pre-push reran the full generation suite successfully.\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Codex Review: Didn't find any major issues. Hooray!\\n\\n**Reviewed commit:** `26ef1b7f7d`\\n\\n

ℹ️ About Codex in GitHub
\\n
\\n\\n[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you\\n- Open a pull request for review\\n- Mark a draft as ready\\n- Comment \\\"@codex review\\\".\\n\\nIf Codex has suggestions, it will comment; otherwise it will react with 👍.\\n\\n\\n\\n\\nCodex can also answer questions or update the PR. Try commenting \\\"@codex address that feedback\\\".\\n \\n
\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"_🧹 Nitpick_ | _🔵 Trivial_ | _💤 Low value_\\n\\n**Duplicate self-support/duplicate-target checks create maintenance burden.**\\n\\n`validate_support_pins` (lines 1020-1042) performs the same self-support and duplicate-target checks. When `StrandRegistry::insert` calls both validators in sequence, these checks run twice.\\n\\nConsider removing the duplicated checks from `validate_support_pins` since `insert` calls the local validator first. That method would then only handle registry-relative checks (target liveness, worldline matching) that require live strand context.\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@crates/warp-core/src/strand.rs` around lines 214 - 225, The self-support and\\nduplicate-target checks are being performed twice: once in the inline validation\\ncode (around lines 214-225) and again in the validate_support_pins function\\n(lines 1020-1042). Since StrandRegistry::insert calls both validators in\\nsequence, this creates unnecessary duplication and maintenance burden. Remove\\nthe self-support and duplicate-target validation checks from the\\nvalidate_support_pins function, keeping only the registry-relative checks that\\nrequire live strand context (such as target liveness and worldline matching\\nvalidation). This leaves the simpler checks to the inline validator that runs\\nfirst in the insert flow.\\n```\\n\\n
\\n\\n\\n\\n\\n\\n\",\"path\":\"crates/warp-core/src/strand.rs\",\"side\":\"RIGHT\",\"line\":225}{\"type\":\"pull_request_comment\",\"body\":\"_⚠️ Potential issue_ | _🟡 Minor_ | _⚡ Quick win_\\n\\n**Strengthen invariant-specific assertions in constructor rejection tests.**\\n\\nThese assertions accept any `InvariantViolation`, so a failure from the wrong invariant would still pass. Assert INV-S7 and INV-S8 explicitly to keep regression coverage precise.\\n\\n \\n\\n
\\n
Suggested patch
\\n\\n```diff\\n- assert!(\\n- matches!(err, StrandError::InvariantViolation(_)),\\n- \\\"expected InvariantViolation, got {err:?}\\\"\\n- );\\n+ assert!(\\n+ matches!(\\n+ err,\\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\\\"INV-S7:\\\")\\n+ ),\\n+ \\\"expected INV-S7 violation, got {err:?}\\\"\\n+ );\\n@@\\n- assert!(\\n- matches!(err, StrandError::InvariantViolation(_)),\\n- \\\"expected InvariantViolation, got {err:?}\\\"\\n- );\\n+ assert!(\\n+ matches!(\\n+ err,\\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\\\"INV-S8:\\\")\\n+ ),\\n+ \\\"expected INV-S8 violation, got {err:?}\\\"\\n+ );\\n```\\n
\\n\\n\\nAlso applies to: 701-704\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@crates/warp-core/tests/strand_contract_tests.rs` around lines 681 - 684, The\\nassertions currently use a broad pattern match that accepts any\\nStrandError::InvariantViolation without validating which specific invariant was\\nviolated. Replace the generic InvariantViolation pattern match with explicit\\nchecks for the invariant error messages or codes (INV-S7 and INV-S8\\nrespectively) to ensure that only the expected invariant violations cause the\\ntests to pass, preventing regression failures from being masked by violations of\\ndifferent invariants. This applies to both the assertion at lines 681-684 and\\nthe related assertion at lines 701-704 in the same test file.\\n```\\n\\n
\\n\\n\\n\\n\\n\\n\",\"path\":\"crates/warp-core/tests/strand_contract_tests.rs\",\"side\":\"RIGHT\",\"line\":684}{\"type\":\"pull_request_comment\",\"body\":\"_⚠️ Potential issue_ | _🟠 Major_\\n\\n**GP1 completion status inconsistent across three documents due to unresolved P1/P4 gaps.**\\n\\nAll three files claim GP1 is complete or slices S1–S5 are checked, but the PR objectives' self-code review identifies two blocking issues:\\n\\n- **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Marks status as \\\"implemented\\\" despite outstanding P1 (incomplete strand constructor boundary) and P4 (BraidError display regression) issues.\\n- **braids-and-strands-roadmap.md#L64–L71:** Checks off GP1-S1 through GP1-S5, but S1 acceptance criterion (public forgery prevention) is not satisfied: `Strand::new(...)` skips writer-head cardinality validation, and `WorldlineRuntime::fork_strand(...)` bypasses the constructor entirely.\\n- **CHANGELOG.md#L10–L19:** Claims \\\"v1 single-writer-head strand invariant [is] enforced\\\" and \\\"runtime strand forking constructs the registered relation through the same constructor boundary,\\\" but both are false: cardinality is unenforced, and fork_strand uses struct literals.\\n\\n**Shared root cause:** The PR objectives' commit message summary explicitly states the three commits include the main feature plus two follow-up fixes for P1 and P4, suggesting the fixes may not be in this PR. The documents prematurely declare victory over incomplete work.\\n\\n**Required fixes:**\\n\\n1. **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Change status from \\\"implemented\\\" to \\\"in progress\\\" or \\\"blocked on P1/P4\\\" until both issues close.\\n2. **braids-and-strands-roadmap.md#L64–L71:** Uncheck GP1-S1 (incomplete boundary validation), and add a note flagging the two outstanding issues with references to the self-code review.\\n3. **CHANGELOG.md#L10–L19:** Either move these entries to a \\\"Fixed (GP1 follow-up)\\\" section after the follow-up commits land, or reword to describe only what is actually implemented (e.g., \\\"Strand field access moved behind pub(crate), Strand::new validates posture coherence [incomplete cardinality enforcement]\\\").\\n\\n
\\n
📍 Affects 3 files
\\n\\n- `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md#L6-L6` (this comment)\\n- `docs/design/braids-and-strands-roadmap.md#L64-L71`\\n- `CHANGELOG.md#L10-L19`\\n\\n
\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn\\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\\nat line 6, The three documentation files prematurely claim GP1 is complete\\ndespite two unresolved blocking issues (P1 incomplete strand constructor\\nboundary validation, P4 BraidError display regression). In\\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\\nat line 6, change the status from \\\"implemented\\\" to \\\"in progress\\\" or \\\"blocked on\\nP1/P4\\\" to reflect the incomplete work. In\\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\\nthe public forgery prevention acceptance criterion is not satisfied) and add a\\nnote referencing the two outstanding issues from the self-code review. In\\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\\naccurately describe what is currently implemented and explicitly flag what\\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\\n```\\n\\n
\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\",\"path\":\"docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\",\"side\":\"RIGHT\",\"line\":6}{\"type\":\"pull_request_comment\",\"body\":\"**Actionable comments posted: 3**\\n\\n
\\n
🤖 Prompt for all review comments with AI agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nInline comments:\\nIn `@crates/warp-core/src/strand.rs`:\\n- Around line 214-225: The self-support and duplicate-target checks are being\\nperformed twice: once in the inline validation code (around lines 214-225) and\\nagain in the validate_support_pins function (lines 1020-1042). Since\\nStrandRegistry::insert calls both validators in sequence, this creates\\nunnecessary duplication and maintenance burden. Remove the self-support and\\nduplicate-target validation checks from the validate_support_pins function,\\nkeeping only the registry-relative checks that require live strand context (such\\nas target liveness and worldline matching validation). This leaves the simpler\\nchecks to the inline validator that runs first in the insert flow.\\n\\nIn `@crates/warp-core/tests/strand_contract_tests.rs`:\\n- Around line 681-684: The assertions currently use a broad pattern match that\\naccepts any StrandError::InvariantViolation without validating which specific\\ninvariant was violated. Replace the generic InvariantViolation pattern match\\nwith explicit checks for the invariant error messages or codes (INV-S7 and\\nINV-S8 respectively) to ensure that only the expected invariant violations cause\\nthe tests to pass, preventing regression failures from being masked by\\nviolations of different invariants. This applies to both the assertion at lines\\n681-684 and the related assertion at lines 701-704 in the same test file.\\n\\nIn\\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`:\\n- Line 6: The three documentation files prematurely claim GP1 is complete\\ndespite two unresolved blocking issues (P1 incomplete strand constructor\\nboundary validation, P4 BraidError display regression). In\\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\\nat line 6, change the status from \\\"implemented\\\" to \\\"in progress\\\" or \\\"blocked on\\nP1/P4\\\" to reflect the incomplete work. In\\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\\nthe public forgery prevention acceptance criterion is not satisfied) and add a\\nnote referencing the two outstanding issues from the self-code review. In\\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\\naccurately describe what is currently implemented and explicitly flag what\\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\\n```\\n\\n
\\n\\n
\\n
🪄 Autofix (Beta)
\\n\\nFix all unresolved CodeRabbit comments on this PR:\\n\\n- [ ] Push a commit to this branch (recommended)\\n- [ ] Create a new PR with the fixes\\n\\n
\\n\\n---\\n\\n
\\n
ℹ️ Review info
\\n\\n
\\n
⚙️ Run configuration
\\n\\n**Configuration used**: Path: .coderabbit.yaml\\n\\n**Review profile**: ASSERTIVE\\n\\n**Plan**: Pro\\n\\n**Run ID**: `eac0377b-7ef2-44c8-af14-0a24690fc662`\\n\\n
\\n\\n
\\n
📥 Commits
\\n\\nReviewing files that changed from the base of the PR and between 3d6fdba057491f6c802e0364a0043d5ebc6bb458 and 26ef1b7f7d227022ab537d75da9b8e2c83cd1883.\\n\\n
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📒 Files selected for processing (11)
\\n\\n* `CHANGELOG.md`\\n* `crates/warp-core/src/braid.rs`\\n* `crates/warp-core/src/braid_shell.rs`\\n* `crates/warp-core/src/coordinator.rs`\\n* `crates/warp-core/src/lib.rs`\\n* `crates/warp-core/src/proof.rs`\\n* `crates/warp-core/src/strand.rs`\\n* `crates/warp-core/tests/braid_public_api_tests.rs`\\n* `crates/warp-core/tests/strand_contract_tests.rs`\\n* `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\\n* `docs/design/braids-and-strands-roadmap.md`\\n\\n
\\n\\n
\\n\\n\",\"path\":null,\"side\":null,\"line\":null}","text_elements",[],{"_463":932,"_444":445,"_465":451},{"_466":933,"_468":-5,"_42":-5,"_469":-5,"_470":-5,"_97":326,"_93":472},[934],{"_46":928,"_93":935},"input_text",{"_463":937,"_444":445,"_465":451},{"_466":938,"_468":-5,"_42":-5,"_469":-5,"_470":-5,"_97":326,"_93":472},[939,940],{"_46":942,"_93":935},{"_46":941,"_93":935},"\n /workspace/echo\n bash\n 2026-06-15\n Etc/UTC\n","# AGENTS.md instructions for /workspace/echo\n\n\n\n\n\n# AGENTS\n\nThis guide is for AI agents and human operators recovering context in the Echo repository.\n\n## Architecture North Star\n\nEcho is not a graph database, app framework, sync daemon, or mutable state\nserver. Echo is a deterministic WARP runtime over witnessed causal history.\n\nThe durable territory is admitted causal history: transitions, frontiers, lane\nidentities, payload hashes, receipts, witnesses, checkpoints, suffixes, and\nretained boundary artifacts. Graphs, files, editor buffers, UI state, and debug\nviews are materialized readings emitted by observers or optics over that\nhistory. They may be cached, retained, transported, compared, or revealed, but\nthey are not the substrate ontology.\n\nPublic Echo surfaces should follow the WARP optic shape:\n\n```text\nexplicit causal basis/site\n+ bounded aperture\n+ law\n+ support, capability, budget, and evidence posture\n-> witnessed hologram\n```\n\nExternal callers propose explicit-base intents or observe through bounded\noptics. Echo admits, stages, pluralizes, conflicts, or obstructs those claims\nunder named law and emits receipts, reading envelopes, witnesses, or retained\nshells. Transport is witnessed suffix admission, not state sync. Application\nnouns belong in authored contracts and generated adapters, not in Echo core.\n\nKeep these sentences in view when changing architecture, docs, or APIs:\n\n```text\nThere is witnessed causal history.\nWARP optics chart it.\nHolograms witness those charts.\nMaterialized graphs are optional readings.\nContinuum is the protocol for lawful causal-history exchange.\n```\n\n## Git Rules\n\n- **NEVER** amend commits.\n- **NEVER** rebase or force-push.\n- **NEVER** push to `main` without explicit permission.\n- Always use standard commits and regular pushes.\n\n## Documentation & Planning Map\n\nDo not audit the repository by recursively walking the filesystem. Follow the authoritative manifests:\n\n### 1. The Entrance\n\n- **`README.md`**: Public front door, core value prop, and quick tour.\n- **`GUIDE.md`**: Orientation and productive-fast path.\n- **`docs/index.md`**: VitePress documentation map.\n\n### 2. The Bedrock\n\n- **`ARCHITECTURE.md`**: Authoritative structural reference (Hexagonal, Core, Memory).\n- **`VISION.md`**: Core tenets and the causal mission.\n- **`METHOD.md`**: Repo work doctrine (Backlog lanes, Cycle loop).\n\n### 3. The Direction\n\n- **`docs/BEARING.md`**: Current execution gravity and active tensions.\n- **`docs/design/ROADMAP.md`**: Broad strategic horizon and targets.\n- **`backlog/`**: The active source of truth for pending work.\n\n### 4. The Proof\n\n- **`CHANGELOG.md`**: Historical truth of merged behavior.\n- **`cargo xtask dind`**: Determinism convergence verification.\n\n## Context Recovery Protocol\n\nWhen starting a new session or recovering from context loss:\n\n1. **Read `docs/BEARING.md`** to find the current execution gravity.\n2. **Read `METHOD.md`** to understand the work doctrine.\n3. **Check `backlog/asap/`** for imminent work.\n4. **Check `git log -n 5` and `git status`** to verify the current branch state.\n\n## Executable Claim Protocol\n\nEngineering work must converge around executable evidence, not broad repository\ninterpretation. Before editing code, reduce the task to one executable claim:\n\n1. **Bound the Claim**: State the behavior, invariant, or artifact that must\n change.\n2. **Name the Witness**: Identify the smallest test, check, script, compile\n contract, golden vector, schema validation, or artifact inspection that can\n prove the claim.\n3. **Run the Witness When Feasible**: Prefer a failing witness before the fix.\n If the witness cannot execute because the repository is already broken,\n repair only the minimal compile/runtime blocker required to run it.\n4. **Do Not Expand from an Unblocker**: Do not turn a compile blocker into\n nearby architecture cleanup, docs cleanup, lint cleanup, migration sweep, or\n opportunistic refactor.\n5. **Green the Claim**: Implement the smallest fix, rerun the witness, and run\n only directly relevant surrounding checks unless broader validation is\n explicitly requested.\n6. **Stop on Green**: When the witness passes and the requested scope is\n satisfied, stop. Do not inspect more PR comments, audit more files, or clean\n unrelated residue without a new executable claim.\n\nIf unrelated failures remain, isolate them in the final report instead of\nabsorbing them into the task. Report files changed, symbols or behavior changed,\nwitness commands, pass/fail results, and intentional non-actions such as no\ncommit, no push, or no PR comment.\n\n## End of Turn Checklist\n\nAfter altering files:\n\n1. **Verify Truth**: Ensure documentation is updated if behavior or structure changed.\n2. **Log Debt**: Add follow-on backlog items to `bad-code/` or `cool-ideas/`.\n3. **Commit**: Use focused, conventional commit messages. Propose a draft before executing.\n4. **Validate**: Run `cargo check` and relevant tests.\n\n---\n\n**The goal is inevitability. Every feature is defined by its tests.**\n\n",{"_463":944,"_444":445,"_465":451},{"_466":945,"_468":-5,"_42":-5,"_469":-5,"_470":-5,"_97":946,"_93":472},[947,948],"developer",{"_46":950,"_93":935},{"_46":949,"_93":935},"\n## Skills\nA skill is a set of local instructions to follow that is stored in a `SKILL.md` file. Below is the list of skills that can be used. Each entry includes a name, description, and file path so you can open the source for full instructions when using a specific skill.\n### Available skills\n- imagegen: Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output should be a bitmap asset rather than repo-native code or vector. Do not use when the task is better handled by editing existing SVG/vector/code-native assets, extending an established icon or logo system, or building the visual directly in HTML/CSS/canvas. (file: /opt/codex/skills/.system/imagegen/SKILL.md)\n- openai-docs: Use when the user asks how to build with OpenAI products or APIs and needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; prioritize OpenAI docs MCP tools, use bundled references only as helper context, and restrict any fallback browsing to official OpenAI domains. (file: /opt/codex/skills/.system/openai-docs/SKILL.md)\n- plugin-creator: Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, and baseline placeholders you can edit before publishing or testing. Use when Codex needs to create a new local plugin, add optional plugin structure, or generate or update repo-root `.agents/plugins/marketplace.json` entries for plugin ordering and availability metadata. (file: /opt/codex/skills/.system/plugin-creator/SKILL.md)\n- skill-creator: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. (file: /opt/codex/skills/.system/skill-creator/SKILL.md)\n- skill-installer: Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /opt/codex/skills/.system/skill-installer/SKILL.md)\n### How to use skills\n- Discovery: The list above is the skills available in this session (name + description + file path). Skill bodies live on disk at the listed paths.\n- Trigger rules: If the user names a skill (with `$SkillName` or plain text) OR the task clearly matches a skill's description shown above, you must use that skill for that turn. Multiple mentions mean use them all. Do not carry skills across turns unless re-mentioned.\n- Missing/blocked: If a named skill isn't in the list or the path can't be read, say so briefly and continue with the best fallback.\n- How to use a skill (progressive disclosure):\n 1) After deciding to use a skill, open its `SKILL.md`. Read only enough to follow the workflow.\n 2) When `SKILL.md` references relative paths (e.g., `scripts/foo.py`), resolve them relative to the skill directory listed above first, and only consider other paths if needed.\n 3) If `SKILL.md` points to extra folders such as `references/`, load only the specific files needed for the request; don't bulk-load everything.\n 4) If `scripts/` exist, prefer running or patching them instead of retyping large code blocks.\n 5) If `assets/` or templates exist, reuse them instead of recreating from scratch.\n- Coordination and sequencing:\n - If multiple skills apply, choose the minimal set that covers the request and state the order you'll use them.\n - Announce which skill(s) you're using and why (one short line). If you skip an obvious skill, say why.\n- Context hygiene:\n - Keep context small: summarize long sections instead of pasting them; only load extra files when needed.\n - Avoid deep reference-chasing: prefer opening only files directly linked from `SKILL.md` unless you're blocked.\n - When variants exist (frameworks, providers, domains), pick only the relevant reference file(s) and note that choice.\n- Safety and fallback: If a skill can't be applied cleanly (missing files, unclear instructions), state the issue, pick the next-best approach, and continue.\n","\nFilesystem sandboxing defines which files can be read or written. `sandbox_mode` is `danger-full-access`: No filesystem sandboxing - all commands are permitted. Network access is enabled.\nApproval policy is currently never. Do not provide the `sandbox_permissions` for any reason, commands will be rejected.\n","turn/started",{"_444":445,"_88":953},{"_104":-5,"_42":451,"_452":954,"_454":455,"_456":955},[],"inProgress",{"_456":957,"_444":445},{"_958":959,"_93":960},"activeFlags",[],"active","thread/started",{"_963":964},"thread",{"_965":-5,"_966":-5,"_967":968,"_969":455,"_528":529,"_970":15,"_971":-5,"_972":-5,"_973":-5,"_974":975,"_42":445,"_976":977,"_182":-5,"_978":-5,"_162":979,"_980":211,"_981":-5,"_533":982,"_456":983,"_984":-5,"_78":985,"_986":455},"agentNickname","agentRole","cliVersion","0.128.0","createdAt","ephemeral","extra","forkedFromId","gitInfo","historyMode","legacy","modelProvider","openai","parentThreadId","/opt/codex/sessions/2026/06/15/rollout-2026-06-15T09-32-17-019eca9f-e789-7730-a58c-d99fe28dc7b5.jsonl","preview","recencyAt","vscode",{"_93":460},"threadSource",[],"updatedAt",[],"messages",[990],{"_42":991,"_992":993,"_994":995,"_996":995,"_466":997,"_456":998,"_468":-5,"_999":32,"_1000":1001,"_1002":1003,"_1004":-5},"e8d3f123-1914-4a4d-9aef-099e18c7ffbb","author",{"_97":326,"_182":-5,"_1000":1013},"create_time",1781515936.809628,"update_time",{"_1009":46,"_1010":1011},"finished_successfully","weight","metadata",{"_1005":1006},"recipient","all","channel","l1239dk1",{"_1007":1008},"inline_comments",[],"content_type","parts",[1012],"@codex self-audit found one new documentation precision issue while reviewing the current PR head.\n\n| ID | Severity | Source | File | Lines | Issue | Mitigation |\n| --- | --- | --- | --- | --- | --- | --- |\n| SELF-01 | P5 | Self | `crates/warp-core/src/strand.rs` | constructor docs around `Strand::new(...)` errors | The public constructor now rejects missing/multiple v1 writer heads, but the `# Errors` docs only mention wrong-worldline heads and omit cardinality. | Update the constructor error docs to state the v1 exactly-one-writer-head invariant explicitly. |\nHarden strand construction and typed braid failures\n\n## Summary\n\n- implement Goalpost 1 of the braids/strands hardening roadmap\n- move `Strand
` public struct-literal construction behind `Strand::new(...)` plus read-only accessors\n- validate retained posture and typestate/runtime posture coherence before constructing typed strands\n- replace proof validation strings with structured `ProofError`\n- replace braid invalid-transition action strings with `BraidTransitionKind`\n- thread typed proof errors through `BraidShellError::ProofShapeValidationFailed`\n- update public API tests, strand fixture builders, changelog, and the roadmap checklist\n\n## Why\n\nPR #545 made strands and braids law-bearing surfaces, but `Strand
` still looked forgeable through public fields and proof/braid failures still exposed behavioral facts through strings. This PR closes the first hardening goalpost: law-bearing strand values are admitted through named construction, and callers can branch on typed failure variants without parsing display text.\n\nRuntime and registry checks remain authoritative. Typestate is only the guardrail.\n\n## Red / Green witnesses\n\nRED before implementation:\n\n- `cargo test -p warp-core --test braid_public_api_tests`\n- `cargo test -p warp-core --test strand_contract_tests strand_constructor_rejects_static_runtime_posture_mismatch`\n\nGREEN after implementation:\n\n- `cargo test -p warp-core --lib` — 560/560\n- `cargo test -p warp-core --test braid_public_api_tests` — 3/3\n- `cargo test -p warp-core --test strand_contract_tests` — 29/29\n- `cargo test -p warp-core --doc` — includes the new public `Strand` compile-fail witness\n- `cargo clippy -p warp-core --lib -- -D warnings`\n- `cargo fmt --all -- --check`\n- `git diff --check`\n- `scripts/check_spdx.sh`\n- `pnpm exec markdownlint-cli2 CHANGELOG.md docs/design/braids-and-strands-roadmap.md docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\n- pre-commit and pre-push hooks\n\n\n\n## Summary by CodeRabbit\n\n* **New Features**\n * Structured error reporting for invalid state transitions with specific transition types and current status details.\n * Typed proof validation errors replacing generic error messages with specific failure categories.\n\n* **Improvements**\n * Strengthened data structure construction with enhanced invariant validation and better error reporting for violations.\n * Single-writer-head invariant enforcement across data structure initialization and registration.\n\n* **Documentation**\n * Completed roadmap milestone for lawful construction and typed failures.\n\n\n\n\n\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/flyingrobots/echo/pull/548?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\n\n\n\n\n> [!WARNING]\n> ## Review limit reached\n> \n> `@flyingrobots`, we couldn't start this review because you've reached your PR review rate limit.\n> \n> More reviews will be available in 52 minutes and 37 seconds. [Learn how PR review limits work](https://docs.coderabbit.ai/management/plans#fair-usage-limits-policy).\n> \n> Your organization has run out of usage credits. Purchase more credits in the [billing tab](https://app.coderabbit.ai/settings/billing?tab=usage&orgId=4252c417-78a1-49cd-a607-68d1e6bdacc4) to continue.\n> \n>
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📥 Commits
\n> \n> Reviewing files that changed from the base of the PR and between 26ef1b7f7d227022ab537d75da9b8e2c83cd1883 and eb1f2c68d8b55b9815bd64dcd7dc17d03e329432.\n> \n>
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📒 Files selected for processing (1)
\n> \n> * `crates/echo-wesley-gen/tests/generation.rs`\n> \n>
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📝 Walkthrough
\n\n## Walkthrough\n\nImplements GP1 of the braids-and-strands hardening roadmap: `Strand
` fields are restricted to `pub(crate)`, a posture-aware `validate_local_strand_invariants` function is introduced, and a `Strand::new` constructor enforces all local invariants. `ProofEnvelope::validate_shape` switches from `String` errors to a structured `ProofError` enum; `BraidError::InvalidTransition` replaces `action: String` with a typed `BraidTransitionKind`. All call sites, tests, and design docs are updated accordingly.\n\n## Changes\n\n**GP1: Lawful Construction and Typed Failures**\n\n| Layer / File(s) | Summary |\n|---|---|\n| **Typed proof error contracts**
`crates/warp-core/src/proof.rs`, `crates/warp-core/src/lib.rs`, `crates/warp-core/src/braid_shell.rs` | Adds `VerificationFailureCode` and `ProofError` enums via `thiserror`; `ProofEnvelope::validate_shape` returns `Result<(), ProofError>`; `BraidShellError::ProofShapeValidationFailed` carries `ProofError` instead of `String`; both types re-exported from `lib.rs`. |\n| **Typed BraidTransitionKind and InvalidTransition update**
`crates/warp-core/src/braid.rs` | Adds `BraidTransitionKind` enum with `Display`; `BraidError::InvalidTransition` switches from `action: String` to `transition: BraidTransitionKind`; all three `Braid::apply` error sites updated. |\n| **Strand field encapsulation and invariant-enforcing constructor**
`crates/warp-core/src/strand.rs` | `Strand
` fields changed to `pub(crate)`; `validate_local_strand_invariants::
()` added to enforce posture coherence, worldline distinctness, v1 writer-head cardinality/ownership, and support-pin constraints; `pub fn new(...)` constructor and getter accessors exposed; `StrandRegistry::insert` delegates to shared validator. |\n| **Coordinator wired to Strand::new**
`crates/warp-core/src/coordinator.rs` | `WorldlineRuntime::fork_strand` replaces struct literal construction with `Strand::new(...)`; new regression test asserts empty `writer_heads` is rejected and all partial state is rolled back. |\n| **Braid internal + public API tests**
`crates/warp-core/src/braid.rs`, `crates/warp-core/tests/braid_public_api_tests.rs` | Three internal unit tests updated to match `BraidTransitionKind` fields; new public API tests assert typed `InvalidTransition` errors, human-readable display strings, and typed `ProofError` variants from `validate_shape`. |\n| **BraidShell proof validation tests**
`crates/warp-core/src/braid_shell.rs` | Wildcard proof-error matches replaced with structured `ProofError::PublicInputsMismatch`, `ProofError::EmptyPayload`, and `ProofError::UnsupportedKind` assertions. |\n| **Strand contract tests refactored to constructor/accessor API**
`crates/warp-core/tests/strand_contract_tests.rs` | Removes `make_test_strand_raw`, introduces `make_test_strand_with_parts` using `Strand::new`; all field accesses replaced with accessor calls; new constructor rejection tests added for INV-S7, INV-S8, and `Shared` posture without admission scope. |\n| **Design docs and changelog**
`CHANGELOG.md`, `docs/design/braids-and-strands-roadmap.md`, `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md` | Goalpost 1 status set to \"implemented\"; GP1-S1 through GP1-S5 checked off in the roadmap tracker; two CHANGELOG entries added. |\n\n## Estimated code review effort\n\n🎯 4 (Complex) | ⏱️ ~60 minutes\n\n## Possibly related PRs\n\n- [flyingrobots/echo#315](https://github.com/flyingrobots/echo/pull/315): Introduced the original `Strand` module and `StrandRegistry`/`Strand` APIs that this PR directly tightens by encapsulating fields and enforcing construction invariants.\n- [flyingrobots/echo#545](https://github.com/flyingrobots/echo/pull/545): Overlaps directly with the typed braid lifecycle/proof error refactoring and posture-validated strand construction that this PR completes.\n\n## Poem\n\n> 🔒 No more forging strands by hand,\n> the fields are locked, the law has land.\n> `BraidTransitionKind` says what went wrong,\n> `ProofError` typed, the contract's strong.\n> GP1: checked — the invariants hold,\n> `Strand::new` guards every fold. 🧵\n\n
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🚥 Pre-merge checks | ✅ 5
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✅ Passed checks (5 passed)
\n\n| Check name | Status | Explanation |\n| :------------------------: | :------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |\n| Title check | ✅ Passed | The title directly and accurately describes the main objective of the PR: hardening strand construction and implementing typed braid failures, which aligns with the core changes across strand.rs, braid.rs, and proof.rs. |\n| Docstring Coverage | ✅ Passed | Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. |\n| Linked Issues check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\n| Out of Scope Changes check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\n\n
\n\n_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}\n\n
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✨ Finishing Touches
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🧪 Generate unit tests (beta)
\n\n- [ ] Create PR with unit tests\n- [ ] Commit unit tests in branch `hardening/lawful-construction-typed-failures`\n\n
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\n\n\n_{Comment `@coderabbitai help` to get the list of available commands and usage tips.}\n\n\n\n\n\n\n\n\n## Self-Code Review: Code Lawyer Pass\n\n@codex Please confirm or challenge these findings. I reviewed PR #548 against `origin/main` after a clean worktree gate and `git fetch origin`.\n\n| Severity | File / lines | Infraction | Evidence | Recommended mitigation prompt |\n| --- | --- | --- | --- | --- |\n| P1 | `crates/warp-core/src/strand.rs:167`, `crates/warp-core/src/strand.rs:192`, `crates/warp-core/src/strand.rs:214`, `crates/warp-core/src/strand.rs:234`, `crates/warp-core/src/strand.rs:807`, `crates/warp-core/src/strand.rs:821`, `crates/warp-core/src/coordinator.rs:1610` | The new law-bearing constructor boundary still admits strands with zero or multiple writer heads, and the production fork path still builds a `Strand` through a crate-internal struct literal instead of the constructor. | The field docs state `writer_heads` has cardinality 1 in v1, but `Strand::new(...)` only verifies each head belongs to `child_worldline_id`; it never checks `writer_heads.len() == 1`. `StrandRegistry::insert(...)` repeats the ownership check but also does not check cardinality. `WorldlineRuntime::fork_strand(...)` constructs `Strand { ... }` directly and relies on registry insertion, so any constructor-only invariant added later can be bypassed by production code. | `Fix the strand construction boundary so v1 writer-head cardinality is enforced through one shared local-invariant validator. Add failing tests showing `Strand::new(...)` rejects zero writer heads and two writer heads. Have `Strand::new(...)` and `StrandRegistry::insert(...)` both call the same validator, and replace the production `fork_strand` struct literal with `Strand::new(...)` so production construction goes through the named door.` |\n| P4 | `crates/warp-core/src/braid.rs:57` | `BraidError` display text regressed from human action phrases to Rust debug variant names. | The roadmap says typed transition failures should preserve stable display text for humans while exposing typed variants to callers. The old display produced phrases like `cannot weave member`; the new `#[error(\"cannot transition braid state: cannot {transition:?} ...\")]` renders `cannot WeaveMember`, which is typed but not human-facing. | `Implement `Display` for `BraidTransitionKind` using human action phrases such as `create braid`, `weave member`, `finalize settlement`, and `collapse braid`, then change the error format to `{transition}`. Add a regression asserting the display string remains human-readable while behavior tests continue matching `BraidTransitionKind` variants.` |\n\nSummary: the PR is directionally correct and all local/remote checks are green, but Goalpost 1 should not be considered complete until the strand constructor boundary closes the v1 writer-head cardinality gap and production strand creation uses the named constructor path.\n\nFollow-up on the self-review findings. @codex please sanity-check the closure.\n\n| Finding | Severity | Resolution | Commit |\n| --- | --- | --- | --- |\n| `Strand
` constructor/registry did not enforce the v1 single-writer-head invariant, and runtime fork bypassed `Strand::new(...)`. | P1 | Added shared local strand invariant validation, enforced exactly one writer head in both `Strand::new(...)` and `StrandRegistry::insert(...)`, routed `WorldlineRuntime::fork_strand(...)` through `Strand::new(...)`, and added constructor plus runtime rollback regressions. | `14226725` |\n| `BraidTransitionKind` leaked enum debug text in `BraidError::InvalidTransition` display output. | P4 | Added human-facing `Display` for `BraidTransitionKind`, switched the error text to `{transition}`, and added public API display regression coverage. | `26ef1b7f` |\n\nValidation:\n\n- RED witnesses failed before implementation: missing writer head, multiple writer heads, empty-head runtime fork rollback, and braid transition display.\n- GREEN focused witnesses passed after implementation.\n- `cargo fmt --all -- --check`\n- `cargo test -p warp-core --test strand_contract_tests` (31/31)\n- `cargo test -p warp-core --test braid_public_api_tests` (4/4)\n- `cargo test -p warp-core --lib` (561/561)\n- `cargo test -p warp-core --doc` (23 passed / 6 ignored)\n- `cargo clippy -p warp-core --lib -- -D warnings`\n- `git diff --check`\n- `scripts/check_spdx.sh`\n- `pnpm exec markdownlint-cli2 CHANGELOG.md`\n- pre-push exact Rust slices passed on push.\n\nAdditional CI follow-up on head `eb1f2c68`:\n\n- The first remote rerun exposed a CI-sensitive harness race in `echo-wesley-gen` generation tests: `--no-std --contract-host` is expected to fail before reading stdin, so the parent can observe `BrokenPipe` while writing the fixture IR.\n- Fixed the test harness to tolerate `ErrorKind::BrokenPipe` for early CLI exits and still assert on the child status/stderr. Commit: `eb1f2c68`.\n- Local validation: `cargo test -p echo-wesley-gen --test generation test_contract_host_generation_rejects_no_std -- --exact --nocapture` and full `cargo test -p echo-wesley-gen --test generation` both pass; pre-push reran the full generation suite successfully.\n\nCodex Review: Didn't find any major issues. Hooray!\n\n**Reviewed commit:** `26ef1b7f7d`\n\n

ℹ️ About Codex in GitHub
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\n\n[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you\n- Open a pull request for review\n- Mark a draft as ready\n- Comment \"@codex review\".\n\nIf Codex has suggestions, it will comment; otherwise it will react with 👍.\n\n\n\n\nCodex can also answer questions or update the PR. Try commenting \"@codex address that feedback\".\n \n
\n_🧹 Nitpick_ | _🔵 Trivial_ | _💤 Low value_\n\n**Duplicate self-support/duplicate-target checks create maintenance burden.**\n\n`validate_support_pins` (lines 1020-1042) performs the same self-support and duplicate-target checks. When `StrandRegistry::insert` calls both validators in sequence, these checks run twice.\n\nConsider removing the duplicated checks from `validate_support_pins` since `insert` calls the local validator first. That method would then only handle registry-relative checks (target liveness, worldline matching) that require live strand context.\n\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/warp-core/src/strand.rs` around lines 214 - 225, The self-support and\nduplicate-target checks are being performed twice: once in the inline validation\ncode (around lines 214-225) and again in the validate_support_pins function\n(lines 1020-1042). Since StrandRegistry::insert calls both validators in\nsequence, this creates unnecessary duplication and maintenance burden. Remove\nthe self-support and duplicate-target validation checks from the\nvalidate_support_pins function, keeping only the registry-relative checks that\nrequire live strand context (such as target liveness and worldline matching\nvalidation). This leaves the simpler checks to the inline validator that runs\nfirst in the insert flow.\n```\n\n
\n\n\n\n\n\n\n_⚠️ Potential issue_ | _🟡 Minor_ | _⚡ Quick win_\n\n**Strengthen invariant-specific assertions in constructor rejection tests.**\n\nThese assertions accept any `InvariantViolation`, so a failure from the wrong invariant would still pass. Assert INV-S7 and INV-S8 explicitly to keep regression coverage precise.\n\n \n\n
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Suggested patch
\n\n```diff\n- assert!(\n- matches!(err, StrandError::InvariantViolation(_)),\n- \"expected InvariantViolation, got {err:?}\"\n- );\n+ assert!(\n+ matches!(\n+ err,\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\"INV-S7:\")\n+ ),\n+ \"expected INV-S7 violation, got {err:?}\"\n+ );\n@@\n- assert!(\n- matches!(err, StrandError::InvariantViolation(_)),\n- \"expected InvariantViolation, got {err:?}\"\n- );\n+ assert!(\n+ matches!(\n+ err,\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\"INV-S8:\")\n+ ),\n+ \"expected INV-S8 violation, got {err:?}\"\n+ );\n```\n
\n\n\nAlso applies to: 701-704\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/warp-core/tests/strand_contract_tests.rs` around lines 681 - 684, The\nassertions currently use a broad pattern match that accepts any\nStrandError::InvariantViolation without validating which specific invariant was\nviolated. Replace the generic InvariantViolation pattern match with explicit\nchecks for the invariant error messages or codes (INV-S7 and INV-S8\nrespectively) to ensure that only the expected invariant violations cause the\ntests to pass, preventing regression failures from being masked by violations of\ndifferent invariants. This applies to both the assertion at lines 681-684 and\nthe related assertion at lines 701-704 in the same test file.\n```\n\n
\n\n\n\n\n\n\n_⚠️ Potential issue_ | _🟠 Major_\n\n**GP1 completion status inconsistent across three documents due to unresolved P1/P4 gaps.**\n\nAll three files claim GP1 is complete or slices S1–S5 are checked, but the PR objectives' self-code review identifies two blocking issues:\n\n- **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Marks status as \"implemented\" despite outstanding P1 (incomplete strand constructor boundary) and P4 (BraidError display regression) issues.\n- **braids-and-strands-roadmap.md#L64–L71:** Checks off GP1-S1 through GP1-S5, but S1 acceptance criterion (public forgery prevention) is not satisfied: `Strand::new(...)` skips writer-head cardinality validation, and `WorldlineRuntime::fork_strand(...)` bypasses the constructor entirely.\n- **CHANGELOG.md#L10–L19:** Claims \"v1 single-writer-head strand invariant [is] enforced\" and \"runtime strand forking constructs the registered relation through the same constructor boundary,\" but both are false: cardinality is unenforced, and fork_strand uses struct literals.\n\n**Shared root cause:** The PR objectives' commit message summary explicitly states the three commits include the main feature plus two follow-up fixes for P1 and P4, suggesting the fixes may not be in this PR. The documents prematurely declare victory over incomplete work.\n\n**Required fixes:**\n\n1. **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Change status from \"implemented\" to \"in progress\" or \"blocked on P1/P4\" until both issues close.\n2. **braids-and-strands-roadmap.md#L64–L71:** Uncheck GP1-S1 (incomplete boundary validation), and add a note flagging the two outstanding issues with references to the self-code review.\n3. **CHANGELOG.md#L10–L19:** Either move these entries to a \"Fixed (GP1 follow-up)\" section after the follow-up commits land, or reword to describe only what is actually implemented (e.g., \"Strand field access moved behind pub(crate), Strand::new validates posture coherence [incomplete cardinality enforcement]\").\n\n
\n
📍 Affects 3 files
\n\n- `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md#L6-L6` (this comment)\n- `docs/design/braids-and-strands-roadmap.md#L64-L71`\n- `CHANGELOG.md#L10-L19`\n\n
\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\nat line 6, The three documentation files prematurely claim GP1 is complete\ndespite two unresolved blocking issues (P1 incomplete strand constructor\nboundary validation, P4 BraidError display regression). In\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\nat line 6, change the status from \"implemented\" to \"in progress\" or \"blocked on\nP1/P4\" to reflect the incomplete work. In\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\nthe public forgery prevention acceptance criterion is not satisfied) and add a\nnote referencing the two outstanding issues from the self-code review. In\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\naccurately describe what is currently implemented and explicitly flag what\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\n```\n\n
\n\n\n\n\n\n\n\n\n\n\n**Actionable comments posted: 3**\n\n
\n
🤖 Prompt for all review comments with AI agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nInline comments:\nIn `@crates/warp-core/src/strand.rs`:\n- Around line 214-225: The self-support and duplicate-target checks are being\nperformed twice: once in the inline validation code (around lines 214-225) and\nagain in the validate_support_pins function (lines 1020-1042). Since\nStrandRegistry::insert calls both validators in sequence, this creates\nunnecessary duplication and maintenance burden. Remove the self-support and\nduplicate-target validation checks from the validate_support_pins function,\nkeeping only the registry-relative checks that require live strand context (such\nas target liveness and worldline matching validation). This leaves the simpler\nchecks to the inline validator that runs first in the insert flow.\n\nIn `@crates/warp-core/tests/strand_contract_tests.rs`:\n- Around line 681-684: The assertions currently use a broad pattern match that\naccepts any StrandError::InvariantViolation without validating which specific\ninvariant was violated. Replace the generic InvariantViolation pattern match\nwith explicit checks for the invariant error messages or codes (INV-S7 and\nINV-S8 respectively) to ensure that only the expected invariant violations cause\nthe tests to pass, preventing regression failures from being masked by\nviolations of different invariants. This applies to both the assertion at lines\n681-684 and the related assertion at lines 701-704 in the same test file.\n\nIn\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`:\n- Line 6: The three documentation files prematurely claim GP1 is complete\ndespite two unresolved blocking issues (P1 incomplete strand constructor\nboundary validation, P4 BraidError display regression). In\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\nat line 6, change the status from \"implemented\" to \"in progress\" or \"blocked on\nP1/P4\" to reflect the incomplete work. In\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\nthe public forgery prevention acceptance criterion is not satisfied) and add a\nnote referencing the two outstanding issues from the self-code review. In\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\naccurately describe what is currently implemented and explicitly flag what\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\n```\n\n
\n\n
\n
🪄 Autofix (Beta)
\n\nFix all unresolved CodeRabbit comments on this PR:\n\n- [ ] Push a commit to this branch (recommended)\n- [ ] Create a new PR with the fixes\n\n
\n\n---\n\n
\n
ℹ️ Review info
\n\n
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⚙️ Run configuration
\n\n**Configuration used**: Path: .coderabbit.yaml\n\n**Review profile**: ASSERTIVE\n\n**Plan**: Pro\n\n**Run ID**: `eac0377b-7ef2-44c8-af14-0a24690fc662`\n\n
\n\n
\n
📥 Commits
\n\nReviewing files that changed from the base of the PR and between 3d6fdba057491f6c802e0364a0043d5ebc6bb458 and 26ef1b7f7d227022ab537d75da9b8e2c83cd1883.\n\n
\n\n
\n
📒 Files selected for processing (11)
\n\n* `CHANGELOG.md`\n* `crates/warp-core/src/braid.rs`\n* `crates/warp-core/src/braid_shell.rs`\n* `crates/warp-core/src/coordinator.rs`\n* `crates/warp-core/src/lib.rs`\n* `crates/warp-core/src/proof.rs`\n* `crates/warp-core/src/strand.rs`\n* `crates/warp-core/tests/braid_public_api_tests.rs`\n* `crates/warp-core/tests/strand_contract_tests.rs`\n* `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\n* `docs/design/braids-and-strands-roadmap.md`\n\n
\n\n
\n\n",{},"created",1781516139.9323173,"Completing the task","event_type","info",{"_93":472,"_97":94,"_466":1759},{"_93":1047,"_1048":1049},{"_93":1022,"_1023":506,"_1024":1025,"_1026":1027,"_1028":-5},"pr","pr_title","pr_message","### Motivation\n- The public `Strand::new(...)` `# Errors` docs omitted the v1 writer-head cardinality requirement; clarify the constructor contract so documentation matches the enforced invariant.\n\n### Description\n- Update the `# Errors` section of `crates/warp-core/src/strand.rs` for `Strand::new(...)` to state that v1 strands must carry exactly one writer head; no runtime behavior or validation logic was changed and registry/constructor behavior remains the same (unstaged `pnpm-lock.yaml` changes were not committed).\n\n### Testing\n- Ran `cargo test -p warp-core --doc`, `cargo check -p warp-core`, and `git diff --check`, all of which passed.","output_diff",{"_93":1026,"_1029":529,"_129":130,"_1030":-5,"_325":1031,"_1032":1033,"_1034":1035,"_1036":1037,"_1038":1039,"_1040":1041,"_1042":1043},"pre_apply_patch","repo_id","preapply_patch_base_commit_sha","diff --git a/crates/warp-core/src/strand.rs b/crates/warp-core/src/strand.rs\nindex 518153e0fd610aced81dc3ad6de1131937146fbe..cee46b848b819edc78630b2154165334fec8805f 100644\n--- a/crates/warp-core/src/strand.rs\n+++ b/crates/warp-core/src/strand.rs\n@@ -218,52 +218,53 @@ fn validate_local_strand_invariants(\n }\n if !seen_support_targets.insert(support_pin.strand_id) {\n return Err(StrandError::DuplicateSupportTarget {\n owner: strand_id,\n target: support_pin.strand_id,\n });\n }\n }\n \n Ok(())\n }\n \n impl Strand
{\n /// Creates a strand through a posture-aware constructor boundary.\n ///\n /// This validates the retained posture bundle, checks the static posture\n /// marker against runtime posture when the marker is concrete, and enforces\n /// the local strand invariants that do not require live registry context.\n /// [`StrandRegistry`] remains responsible for registry-relative admission\n /// checks such as support target liveness.\n ///\n /// # Errors\n ///\n /// Returns [`StrandError`] when the retained posture is incoherent, the\n /// static posture marker disagrees with runtime posture, the child and\n- /// source worldlines are the same, writer heads target the wrong child\n- /// worldline, or support pins are self-targeted or duplicate one another.\n+ /// source worldlines are the same, the v1 writer-head set does not contain\n+ /// exactly one head, that writer head targets the wrong child worldline, or\n+ /// support pins are self-targeted or duplicate one another.\n pub fn new(\n strand_id: StrandId,\n fork_basis_ref: ForkBasisRef,\n child_worldline_id: WorldlineId,\n writer_heads: Vec,\n support_pins: Vec,\n retention_posture: RetentionPosture,\n ) -> Result {\n validate_local_strand_invariants::
(\n strand_id,\n &fork_basis_ref,\n child_worldline_id,\n &writer_heads,\n &support_pins,\n &retention_posture,\n )?;\n \n Ok(Self {\n strand_id,\n fork_basis_ref,\n child_worldline_id,\n writer_heads,\n support_pins,\n retention_posture,\n _marker: std::marker::PhantomData,\n","external_storage_diff",{"_1044":1045,"_1046":-5},"files_modified",1,"lines_added",3,"lines_removed",2,"commit_message","docs(warp-core): clarify strand writer-head constructor 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SPDX-License-Identifier: Apache-2.0","// © James Ross Ω FLYING•ROBOTS ","//! Strand contract for speculative execution lanes.","//!","//! A strand is a named, speculative execution lane derived from a source","//! worldline at a specific tick. It is a relation over a child worldline, not","//! a separate substrate.","//! # Lifecycle","//! A strand either exists in the `StrandRegistry` (live) or does not","//! (dropped). There is no tombstone state. Operational control comes from the","//! ordinary writer-head control plane; strands do not own a private tick path","//! or scheduler.","//! # Invariants","//! See `docs/invariants/STRAND-CONTRACT.md` for the full normative list.","//! Key invariants enforced by this module:","//! - **INV-S1:** `fork_basis_ref` is immutable after creation.","//! - **INV-S2:** Writer heads are created fresh for the child worldline.","//! - **INV-S4:** Strands advance only through ordinary ingress + `super_tick()`.","//! - **INV-S5:** All `fork_basis_ref` fields are verified against provenance.","//! - **INV-S7:** `child_worldline_id != fork_basis_ref.source_lane_id`.","//! - **INV-S8:** Every writer head key belongs to `child_worldline_id`.","//! - **INV-S9:** support pins must be validated, live, and read-only.","use std::collections::{BTreeMap, BTreeSet};","use thiserror::Error;","use crate::clock::WorldlineTick;","use crate::ident::Hash;","use crate::provenance_store::{ProvenanceRef, ProvenanceService, ProvenanceStore};","use crate::revelation::{"," CausalPostureState, DynamicPosture, PostureObstruction, RetentionPosture, Shared,","};","use crate::tick_patch::SlotId;","use crate::worldline::WorldlineId;","use crate::head::WriterHeadKey;","/// A 32-byte domain-separated strand identifier.","///","/// Derived from `BLAKE3(\"strand:\" || label)` following the `HeadId`/`NodeId`","/// pattern.","#[repr(transparent)]","#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]","pub struct StrandId([u8; 32]);","impl StrandId {"," /// Construct a `StrandId` from raw bytes."," #[must_use]"," pub const fn from_bytes(bytes: [u8; 32]) -> Self {"," Self(bytes)"," }"," /// Returns the raw bytes."," pub const fn as_bytes(&self) -> &[u8; 32] {"," &self.0","}","/// Produces a stable, domain-separated strand identifier using BLAKE3.","#[must_use]","pub fn make_strand_id(label: &str) -> StrandId {"," let mut hasher = blake3::Hasher::new();"," hasher.update(b\"strand:\");"," hasher.update(label.as_bytes());"," StrandId(hasher.finalize().into())","/// The exact provenance coordinate the strand was forked from.","/// Immutable after creation (INV-S1).","/// # Coordinate semantics","/// - `fork_tick` is the **last included tick** in the copied prefix.","/// - `commit_hash` is the commit hash **at `fork_tick`**.","/// - `boundary_hash` is the **output boundary hash** at `fork_tick` — the","/// state root after applying the patch at `fork_tick`.","/// - `provenance_ref` carries the same coordinate as a [`ProvenanceRef`].","/// - All fields refer to the **same provenance coordinate**.","#[derive(Clone, Copy, PartialEq, Eq, Debug)]","pub struct ForkBasisRef {"," /// Source lane this strand was forked from in v1."," pub source_lane_id: WorldlineId,"," /// Last included tick in the copied prefix."," pub fork_tick: WorldlineTick,"," /// Commit hash at `fork_tick`."," pub commit_hash: Hash,"," /// Output boundary hash (state root) at `fork_tick`."," pub boundary_hash: Hash,"," /// Substrate-native coordinate handle."," pub provenance_ref: ProvenanceRef,","/// A read-only reference to another strand's materialized state (braid","/// geometry).","/// Support pins are created through validated registry/runtime APIs so the","/// stored `worldline_id`, `pinned_tick`, and `state_hash` remain replayable","/// kernel truth.","pub struct SupportPin {"," /// The strand being pinned."," pub strand_id: StrandId,"," /// The pinned strand's child worldline."," pub worldline_id: WorldlineId,"," /// Tick at which the support strand is pinned."," pub pinned_tick: WorldlineTick,"," /// State hash at the pinned tick."," pub state_hash: Hash,","/// Receipt returned when a strand is dropped.","/// This is the only record that the strand existed after hard-delete.","pub struct DropReceipt {"," /// The dropped strand's identity."," /// The child worldline that was removed."," pub child_worldline_id: WorldlineId,"," /// The tick the child worldline had reached at drop time."," pub final_tick: WorldlineTick,","/// A strand: a named, ephemeral, speculative execution lane.","/// A strand either exists in the `StrandRegistry` (live) or does not","/// (dropped). There is no lifecycle field — operational state is derived","/// from the writer heads.","/// External callers must use named constructors. Struct-literal construction","/// would let callers forge a static posture marker that disagrees with the","/// runtime retention posture:","/// ```compile_fail","/// use warp_core::{Shared, Strand};","/// let _forged: Strand = Strand {","/// strand_id: todo!(),","/// fork_basis_ref: todo!(),","/// child_worldline_id: todo!(),","/// writer_heads: todo!(),","/// support_pins: todo!(),","/// retention_posture: todo!(),","/// _marker: std::marker::PhantomData,","/// };","/// ```","#[expect("," clippy::struct_field_names,"," reason = \"strand_id is the canonical domain field name\"",")]","#[derive(Clone, PartialEq, Eq, Debug)]","pub struct Strand {"," /// Unique strand identity."," pub(crate) strand_id: StrandId,"," /// Immutable fork coordinate."," pub(crate) fork_basis_ref: ForkBasisRef,"," /// Child worldline created by fork."," pub(crate) child_worldline_id: WorldlineId,"," /// Writer heads for the child worldline (cardinality 1 in v1)."," pub(crate) writer_heads: Vec,"," /// Read-only support pins for braid geometry."," pub(crate) support_pins: Vec,"," /// Explicit retention, authority, and admission posture for the strand."," pub(crate) retention_posture: RetentionPosture,"," /// Phantom marker for the static causal posture typestate."," pub(crate) _marker: std::marker::PhantomData
,","const V1_WRITER_HEAD_COUNT_INVARIANT: &str ="," \"INV-S2: v1 strands must carry exactly one writer head\";","fn validate_local_strand_invariants("," strand_id: StrandId,"," fork_basis_ref: &ForkBasisRef,"," child_worldline_id: WorldlineId,"," writer_heads: &[WriterHeadKey],"," support_pins: &[SupportPin],"," retention_posture: &RetentionPosture,",") -> Result<(), StrandError> {"," retention_posture.validate().map_err(StrandError::Posture)?;"," if let Some(expected) = P::causal_posture() {"," if retention_posture.causal_posture != expected {"," return Err(StrandError::Posture(PostureObstruction::PostureMismatch {"," actual: retention_posture.causal_posture,"," expected,"," }));"," }"," if child_worldline_id == fork_basis_ref.source_lane_id {"," return Err(StrandError::InvariantViolation("," \"INV-S7: child_worldline_id must differ from fork_basis_ref.source_lane_id\","," ));"," if writer_heads.len() != 1 {"," V1_WRITER_HEAD_COUNT_INVARIANT,"," for head_key in writer_heads {"," if head_key.worldline_id != child_worldline_id {"," return Err(StrandError::InvariantViolation("," \"INV-S8: every writer head must belong to child_worldline_id\","," ));"," let mut seen_support_targets = BTreeSet::new();"," for support_pin in support_pins {"," if support_pin.strand_id == strand_id {"," return Err(StrandError::SelfSupportPin(strand_id));"," if !seen_support_targets.insert(support_pin.strand_id) {"," return Err(StrandError::DuplicateSupportTarget {"," owner: strand_id,"," target: support_pin.strand_id,"," });"," Ok(())","impl Strand
{"," /// Creates a strand through a posture-aware constructor boundary."," ///"," /// This validates the retained posture bundle, checks the static posture"," /// marker against runtime posture when the marker is concrete, and enforces"," /// the local strand invariants that do not require live registry context."," /// [`StrandRegistry`] remains responsible for registry-relative admission"," /// checks such as support target liveness."," /// # Errors"," /// Returns [`StrandError`] when the retained posture is incoherent, the"," /// static posture marker disagrees with runtime posture, the child and"," /// source worldlines are the same, the v1 writer-head set does not contain"," /// exactly one head, that writer head targets the wrong child worldline, or"," /// support pins are self-targeted or duplicate one another."," pub fn new("," strand_id: StrandId,"," fork_basis_ref: ForkBasisRef,"," child_worldline_id: WorldlineId,"," writer_heads: Vec,"," support_pins: Vec,"," retention_posture: RetentionPosture,"," ) -> Result {"," validate_local_strand_invariants::
("," strand_id,"," &fork_basis_ref,"," child_worldline_id,"," &writer_heads,"," &support_pins,"," &retention_posture,"," )?;"," Ok(Self {"," fork_basis_ref,"," writer_heads,"," support_pins,"," retention_posture,"," _marker: std::marker::PhantomData,"," })"," /// Returns this strand's stable identity."," pub fn strand_id(&self) -> StrandId {"," self.strand_id"," /// Returns the immutable fork coordinate."," pub fn fork_basis_ref(&self) -> ForkBasisRef {"," self.fork_basis_ref"," /// Returns the child worldline created by this strand."," pub fn child_worldline_id(&self) -> WorldlineId {"," self.child_worldline_id"," /// Returns the writer heads owned by this strand's child worldline."," pub fn writer_heads(&self) -> &[WriterHeadKey] {"," &self.writer_heads"," /// Returns the read-only support pins held by this strand."," pub fn support_pins(&self) -> &[SupportPin] {"," &self.support_pins"," /// Returns the explicit retention, authority, and admission posture."," pub fn retention_posture(&self) -> RetentionPosture {"," self.retention_posture"," /// Builds a basis-relative report for this strand against current parent history."," /// The report is the first live-strand seam: the strand still records an"," /// immutable fork anchor, but realization is evaluated against the current"," /// parent basis. Parent movement outside the strand-owned closed footprint"," /// can flow through; parent writes into that footprint require explicit"," /// revalidation before callers treat the realization as clean."," /// Returns [`StrandError`] when provenance is unavailable or the fork tick"," /// cannot be advanced to the suffix start coordinate."," pub fn live_basis_report("," &self,"," provenance: &S,"," ) -> Result {"," let suffix_start = self"," .fork_basis_ref"," .fork_tick"," .checked_increment()"," .ok_or(StrandError::ForkTickOverflow(self.strand_id))?;"," let child_len = history_len(provenance, self.child_worldline_id)?;"," let parent_len = history_len(provenance, self.fork_basis_ref.source_lane_id)?;"," if child_len < suffix_start {"," return Err(StrandError::Provenance(format!("," \"child worldline {:?} is shorter than strand suffix start {}\","," self.child_worldline_id, suffix_start"," )));"," if parent_len < suffix_start {"," \"parent worldline {:?} is shorter than strand anchor successor {}\","," self.fork_basis_ref.source_lane_id, suffix_start"," let owned_divergence = collect_divergence_footprint("," provenance,"," self.child_worldline_id,"," suffix_start,"," child_len,"," let parent_movement = collect_parent_movement("," self.fork_basis_ref.source_lane_id,"," parent_len,"," let realized_parent_ref ="," tip_ref_at_len(provenance, self.fork_basis_ref.source_lane_id, parent_len)?"," .unwrap_or(self.fork_basis_ref.provenance_ref);"," let source_suffix_end_tick = last_tick_before(child_len);"," let parent_revalidation = if parent_len == suffix_start {"," StrandRevalidationState::AtAnchor"," } else {"," let overlapping_slots = owned_divergence.overlapping_parent_writes(&parent_movement);"," if overlapping_slots.is_empty() {"," StrandRevalidationState::ParentAdvancedDisjoint {"," parent_from: self.fork_basis_ref.provenance_ref,"," parent_to: realized_parent_ref,"," }"," } else {"," StrandRevalidationState::RevalidationRequired {"," overlapping_slots,"," }"," };"," Ok(StrandBasisReport {"," strand_id: self.strand_id,"," parent_anchor: self.fork_basis_ref,"," child_worldline_id: self.child_worldline_id,"," source_suffix_start_tick: suffix_start,"," source_suffix_end_tick,"," realized_parent_ref,"," owned_divergence,"," parent_movement,"," parent_revalidation,"," /// Erases the static posture type parameter, converting to DynamicPosture."," pub fn into_dynamic(self) -> Strand {"," Strand {"," fork_basis_ref: self.fork_basis_ref,"," writer_heads: self.writer_heads,"," support_pins: self.support_pins,"," retention_posture: self.retention_posture,","impl Strand {"," /// Attempts to cast this dynamically postured strand to a statically postured Shared strand."," /// Returns a posture obstruction error if the strand's actual posture is not Shared."," pub fn try_into_shared(self) -> Result, StrandError> {"," if self.retention_posture.causal_posture == crate::revelation::CausalPosture::Shared {"," Ok(Strand {"," strand_id: self.strand_id,"," fork_basis_ref: self.fork_basis_ref,"," child_worldline_id: self.child_worldline_id,"," writer_heads: self.writer_heads,"," support_pins: self.support_pins,"," retention_posture: self.retention_posture,"," _marker: std::marker::PhantomData,"," })"," Err(StrandError::Posture(PostureObstruction::PostureMismatch {"," actual: self.retention_posture.causal_posture,"," expected: crate::revelation::CausalPosture::Shared,"," }))","impl Strand {"," /// Produces a deterministic import/conflict plan for the strand suffix."," /// The live registry entry is authoritative; this handle supplies only the"," /// strand identity."," /// Returns a [`crate::settlement::SettlementError`] if the plan cannot be generated."," pub fn plan("," runtime: &crate::coordinator::WorldlineRuntime,"," provenance: &ProvenanceService,"," ) -> Result {"," crate::settlement::SettlementService::plan(runtime, provenance, self.strand_id)"," /// Executes the deterministic settlement plan."," /// Returns a [`crate::settlement::SettlementError`] if settlement fails."," pub fn settle("," runtime: &mut crate::coordinator::WorldlineRuntime,"," provenance: &mut ProvenanceService,"," ) -> Result {"," crate::settlement::SettlementService::settle(runtime, provenance, self.strand_id)","/// Closed optic footprint owned by a strand's local divergence.","/// The write set records slots the child suffix produced. The read set records","/// slots the child suffix depended on. The closed footprint is the union of both:","/// parent writes into either side require revalidation because the speculative","/// realization may no longer be basis-clean.","#[derive(Clone, Debug, Default, PartialEq, Eq)]","pub struct StrandDivergenceFootprint {"," read_slots: BTreeSet,"," write_slots: BTreeSet,","impl StrandDivergenceFootprint {"," /// Records one replay patch as part of the strand-owned divergence."," pub fn extend_patch(&mut self, patch: &crate::worldline::WorldlineTickPatchV1) {"," self.read_slots.extend(patch.in_slots.iter().copied());"," self.write_slots.extend(patch.out_slots.iter().copied());"," /// Returns the number of unique slots in the closed footprint."," pub fn closed_len(&self) -> usize {"," self.closed_slots().len()"," /// Returns `true` when the closed footprint is empty."," pub fn is_empty(&self) -> bool {"," self.read_slots.is_empty() && self.write_slots.is_empty()"," /// Returns `true` when `slot` is in the closed read-or-write footprint."," pub fn contains_closed(&self, slot: &SlotId) -> bool {"," self.read_slots.contains(slot) || self.write_slots.contains(slot)"," /// Returns read slots in deterministic order."," pub fn read_slots(&self) -> impl Iterator {"," self.read_slots.iter()"," /// Returns write slots in deterministic order."," pub fn write_slots(&self) -> impl Iterator {"," self.write_slots.iter()"," fn closed_slots(&self) -> BTreeSet {"," self.read_slots.union(&self.write_slots).copied().collect()"," fn overlapping_parent_writes(&self, parent_movement: &ParentMovementFootprint) -> Vec {"," parent_movement"," .write_slots"," .iter()"," .filter(|slot| self.contains_closed(slot))"," .copied()"," .collect()","/// Parent movement after a strand's anchor coordinate.","/// v1 tracks parent writes because parent writes into the strand-owned","/// divergence footprint are the condition that forces revalidation.","pub struct ParentMovementFootprint {","impl ParentMovementFootprint {"," /// Records one parent replay patch as movement after the strand anchor."," /// Returns `true` when no parent writes were observed after the anchor."," self.write_slots.is_empty()"," /// Returns the number of unique parent-written slots after the anchor."," pub fn write_len(&self) -> usize {"," self.write_slots.len()"," /// Returns `true` when the parent wrote `slot` after the anchor."," pub fn contains_write(&self, slot: &SlotId) -> bool {"," self.write_slots.contains(slot)"," /// Returns parent-written slots in deterministic order.","/// Parent-basis posture for a live strand realization.","#[derive(Clone, Debug, PartialEq, Eq)]","pub enum StrandRevalidationState {"," /// The parent has not advanced beyond the strand's anchor coordinate."," AtAnchor,"," /// The parent advanced, but its writes did not touch the strand-owned footprint."," ParentAdvancedDisjoint {"," /// Anchor coordinate from which the strand diverged."," parent_from: ProvenanceRef,"," /// Current parent basis used for realization."," parent_to: ProvenanceRef,"," },"," /// The parent advanced into the strand-owned footprint."," RevalidationRequired {"," /// Current parent basis that must be checked."," /// Parent-written slots that overlap the strand-owned closed footprint."," overlapping_slots: Vec,","/// Result of explicitly revalidating parent movement inside a strand-owned footprint.","/// This is the inspectable seam between live-basis posture and downstream","/// settlement/reading decisions. The strand report identifies the overlap;","/// callers that can compare concrete target state classify the overlap as","/// clean, obstructed, or conflicting.","pub enum StrandOverlapRevalidation {"," /// The overlapped source patch is already satisfied on the current parent basis."," Clean {"," /// Parent-written slots that overlapped this source patch."," /// The source patch could not be replayed on the current parent basis."," Obstructed {"," /// Replaying the source patch would mutate overlapped parent state."," Conflict {","impl StrandOverlapRevalidation {"," /// Returns the overlapping slots that drove this revalidation outcome."," pub fn overlapping_slots(&self) -> &[SlotId] {"," match self {"," Self::Clean { overlapping_slots }"," | Self::Obstructed { overlapping_slots }"," | Self::Conflict { overlapping_slots } => overlapping_slots,","/// Basis-relative realization report for one live strand.","pub struct StrandBasisReport {"," /// Strand being reported."," /// Immutable parent anchor recorded at strand creation."," pub parent_anchor: ForkBasisRef,"," /// Child worldline currently carrying local divergence."," /// First child tick after the anchor."," pub source_suffix_start_tick: WorldlineTick,"," /// Last child suffix tick, or `None` when the strand has no local suffix yet."," pub source_suffix_end_tick: Option,"," /// Current parent coordinate against which this strand can be realized."," pub realized_parent_ref: ProvenanceRef,"," /// Closed footprint owned by the child suffix."," pub owned_divergence: StrandDivergenceFootprint,"," /// Parent writes after the strand anchor."," pub parent_movement: ParentMovementFootprint,"," /// Revalidation state induced by parent movement."," pub parent_revalidation: StrandRevalidationState,","/// Errors that can occur during strand operations.","#[derive(Debug, Clone, PartialEq, Eq, Error)]","pub enum StrandError {"," /// The strand already exists in the registry."," #[error(\"strand already exists: {0:?}\")]"," AlreadyExists(StrandId),"," /// The strand was not found in the registry."," #[error(\"strand not found: {0:?}\")]"," NotFound(StrandId),"," /// The fork tick does not exist in the source worldline."," #[error(\"fork tick {tick} not available in source worldline {worldline:?}\")]"," ForkTickUnavailable {"," /// Source worldline."," worldline: WorldlineId,"," /// Requested fork tick."," tick: WorldlineTick,"," /// The source worldline does not exist."," #[error(\"source worldline not found: {0:?}\")]"," SourceWorldlineNotFound(WorldlineId),"," /// A provenance operation failed during strand creation or drop."," #[error(\"provenance error: {0}\")]"," Provenance(String),"," /// The strand fork coordinate cannot advance to a suffix start tick."," #[error(\"fork tick overflow for strand {0:?}\")]"," ForkTickOverflow(StrandId),"," /// A support pin targeted a strand that is not live in the registry."," #[error(\"support pin target strand not found: {0:?}\")]"," MissingSupportTarget(StrandId),"," /// A support pin claimed the wrong child worldline for its target strand."," #[error("," \"support pin worldline mismatch for target {target:?}: expected {expected:?}, got {got:?}\""," )]"," SupportWorldlineMismatch {"," /// The support target strand."," target: StrandId,"," /// Expected child worldline id for that strand."," expected: WorldlineId,"," /// Actual worldline id carried by the support pin."," got: WorldlineId,"," /// A support pin must not target the owning strand."," #[error(\"strand must not support-pin itself: {0:?}\")]"," SelfSupportPin(StrandId),"," /// The strand carried an incoherent retention posture."," #[error(\"strand posture obstruction: {0:?}\")]"," Posture(PostureObstruction),"," /// A support pin duplicated an already pinned support target."," #[error(\"duplicate support pin target: owner {owner:?}, target {target:?}\")]"," DuplicateSupportTarget {"," /// Owning strand."," owner: StrandId,"," /// Support strand that was duplicated."," /// A pinned coordinate was not available in provenance."," #[error(\"support pin tick {tick} unavailable for target strand {target:?}\")]"," SupportPinUnavailable {"," /// Support target strand."," /// Requested pinned tick."," /// A strand cannot be removed while another live strand still pins it."," #[error(\"strand {strand:?} is pinned by live strand {pinned_by:?}\")]"," PinnedByLiveStrand {"," /// Strand being removed."," strand: StrandId,"," /// Live strand that still references it."," pinned_by: StrandId,"," /// A contract invariant was violated."," #[error(\"invariant violation: {0}\")]"," InvariantViolation(&'static str),","fn history_len("," provenance: &P,"," worldline_id: WorldlineId,",") -> Result {"," provenance"," .len(worldline_id)"," .map(WorldlineTick::from_raw)"," .map_err(|err| StrandError::Provenance(err.to_string()))","fn tip_ref_at_len("," len: WorldlineTick,",") -> Result, StrandError> {"," let Some(tip_tick) = last_tick_before(len) else {"," return Ok(None);"," };"," .entry(worldline_id, tip_tick)"," .map(|entry| Some(entry.as_ref()))","fn last_tick_before(len: WorldlineTick) -> Option {"," len.checked_sub(1)","fn collect_divergence_footprint("," start_tick: WorldlineTick,"," end_tick: WorldlineTick,",") -> Result {"," let mut footprint = StrandDivergenceFootprint::default();"," for raw_tick in start_tick.as_u64()..end_tick.as_u64() {"," let entry = provenance"," .entry(worldline_id, WorldlineTick::from_raw(raw_tick))"," .map_err(|err| StrandError::Provenance(err.to_string()))?;"," if let Some(patch) = entry.patch.as_ref() {"," footprint.extend_patch(patch);"," Ok(footprint)","fn collect_parent_movement(",") -> Result {"," let mut movement = ParentMovementFootprint::default();"," movement.extend_patch(patch);"," Ok(movement)","/// Session-scoped registry of live strands.","/// Iteration order is by [`StrandId`] (lexicographic over hash bytes).","/// This is deterministic but not semantically meaningful.","#[derive(Clone, Debug, Default)]","pub struct StrandRegistry {"," strands: BTreeMap,","impl StrandRegistry {"," /// Creates an empty strand registry."," pub fn new() -> Self {"," Self::default()"," /// Inserts a fully constructed strand into the registry."," /// Validates contract invariants before insertion:"," /// - INV-S2: v1 strands carry exactly one writer head"," /// - INV-S7: `child_worldline_id != fork_basis_ref.source_lane_id`"," /// - INV-S8: every writer head belongs to `child_worldline_id`"," /// - support pins, when present, reference already-live strands and do not"," /// duplicate or self-target"," /// Returns [`StrandError::AlreadyExists`] if a strand with the same ID"," /// is already registered, or [`StrandError::InvariantViolation`] if any"," /// contract invariant is violated."," pub fn insert(&mut self, strand: Strand) -> Result<(), StrandError> {"," if self.strands.contains_key(&strand.strand_id) {"," return Err(StrandError::AlreadyExists(strand.strand_id));"," validate_local_strand_invariants::("," strand.strand_id,"," &strand.fork_basis_ref,"," strand.child_worldline_id,"," &strand.writer_heads,"," &strand.support_pins,"," &strand.retention_posture,"," self.validate_support_pins(&strand)?;"," self.strands.insert(strand.strand_id, strand);"," Ok(())"," /// Removes a strand from the registry."," /// Returns [`StrandError::NotFound`] if the strand is not registered."," pub fn remove(&mut self, strand_id: &StrandId) -> Result {"," if let Some(pinned_by) = self.find_pinned_by(strand_id) {"," return Err(StrandError::PinnedByLiveStrand {"," strand: *strand_id,"," pinned_by,"," self.strands"," .remove(strand_id)"," .ok_or(StrandError::NotFound(*strand_id))"," /// Returns a reference to a strand, if it exists."," pub fn get(&self, strand_id: &StrandId) -> Option<&Strand> {"," self.strands.get(strand_id)"," /// Returns a mutable reference to a strand, if it exists."," #[cfg(test)]"," pub(crate) fn get_mut(&mut self, strand_id: &StrandId) -> Option<&mut Strand> {"," self.strands.get_mut(strand_id)"," /// Returns `true` if the registry contains the given strand."," pub fn contains(&self, strand_id: &StrandId) -> bool {"," self.strands.contains_key(strand_id)"," /// Returns the strand whose child worldline matches `worldline_id`, if any."," pub fn find_by_child_worldline(&self, worldline_id: &WorldlineId) -> Option<&Strand> {"," .values()"," .find(|strand| &strand.child_worldline_id == worldline_id)"," /// Returns a zero-allocation iterator over live strands derived from the"," /// given source lane, ordered by [`StrandId`]."," pub fn iter_by_source_lane<'a>("," &'a self,"," source_lane_id: &'a WorldlineId,"," ) -> impl Iterator + 'a {"," .filter(move |s| &s.fork_basis_ref.source_lane_id == source_lane_id)"," /// Returns all live strands derived from the given source lane,"," /// ordered by [`StrandId`]. Allocates; prefer"," /// [`iter_by_source_lane`](Self::iter_by_source_lane) in hot paths."," pub fn list_by_source_lane<'a>(&'a self, source_lane_id: &'a WorldlineId) -> Vec<&'a Strand> {"," self.iter_by_source_lane(source_lane_id).collect()"," /// Returns the support pins for one strand."," pub fn list_support_pins(&self, strand_id: &StrandId) -> Result<&[SupportPin], StrandError> {"," Ok(&self"," .strands"," .get(strand_id)"," .ok_or(StrandError::NotFound(*strand_id))?"," .support_pins)"," /// Validates and adds one read-only support pin to a live strand."," /// Returns [`StrandError`] if either strand is missing, if the pin would be"," /// self-referential or duplicate, or if the pinned coordinate is not"," /// available in provenance."," pub fn pin_support("," &mut self,"," support_strand_id: StrandId,"," pinned_tick: WorldlineTick,"," ) -> Result {"," let support_strand = self"," .get(&support_strand_id)"," .ok_or(StrandError::MissingSupportTarget(support_strand_id))?"," .clone();"," let owner = self"," .get(&strand_id)"," .ok_or(StrandError::NotFound(strand_id))?;"," if strand_id == support_strand_id {"," if owner"," .support_pins"," .any(|support_pin| support_pin.strand_id == support_strand_id)"," {"," target: support_strand_id,"," let pinned_entry = provenance"," .entry(support_strand.child_worldline_id, pinned_tick)"," .map_err(|_| StrandError::SupportPinUnavailable {"," tick: pinned_tick,"," })?;"," let support_pin = SupportPin {"," strand_id: support_strand_id,"," worldline_id: support_strand.child_worldline_id,"," pinned_tick,"," state_hash: pinned_entry.expected.state_root,"," .get_mut(&strand_id)"," .ok_or(StrandError::NotFound(strand_id))?"," .push(support_pin);"," Ok(support_pin)"," /// Removes one support pin from a live strand."," /// Returns [`StrandError::NotFound`] if the owner strand is missing or the"," /// named support target is not pinned."," pub fn unpin_support("," let index = owner"," .position(|support_pin| support_pin.strand_id == support_strand_id)"," .ok_or(StrandError::MissingSupportTarget(support_strand_id))?;"," Ok(owner.support_pins.remove(index))"," /// Returns the number of live strands."," pub fn len(&self) -> usize {"," self.strands.len()"," /// Returns `true` if no strands are registered."," self.strands.is_empty()"," fn validate_support_pins(&self, strand: &Strand) -> Result<(), StrandError> {"," let mut seen = BTreeSet::new();"," for support_pin in &strand.support_pins {"," if support_pin.strand_id == strand.strand_id {"," return Err(StrandError::SelfSupportPin(strand.strand_id));"," let target = self"," .strands"," .get(&support_pin.strand_id)"," .ok_or(StrandError::MissingSupportTarget(support_pin.strand_id))?;"," if target.child_worldline_id != support_pin.worldline_id {"," return Err(StrandError::SupportWorldlineMismatch {"," target: support_pin.strand_id,"," expected: target.child_worldline_id,"," got: support_pin.worldline_id,"," });"," if !seen.insert(support_pin.strand_id) {"," return Err(StrandError::DuplicateSupportTarget {"," owner: strand.strand_id,"," fn find_pinned_by(&self, strand_id: &StrandId) -> Option {"," self.strands.values().find_map(|strand| {"," strand"," .support_pins"," .iter()"," .any(|support_pin| &support_pin.strand_id == strand_id)"," .then_some(strand.strand_id)",[1760,1761,1762],{"_1009":46,"_46":1767},{"_1009":1764,"_162":1051,"_1057":1765,"_1058":1766},{"_1009":46,"_46":1763},"\n* Committed the change on the current branch with commit `a0745ff` (`docs(warp-core): clarify strand writer-head constructor errors`).\n* Created a PR titled **“Clarify strand constructor writer-head error docs”**.\n\n**Testing**\n* ✅ `cargo test -p warp-core --doc`\n* ✅ `cargo check -p warp-core`\n* ✅ `git diff --check`\n\nNote: `pnpm-lock.yaml` had pre-existing unstaged local changes and was not touched or included in the commit.","repo_file_citation",239,245,"### Summary\n* Clarified the public `Strand::new(...)` `# Errors` documentation so it explicitly states that v1 strands must contain exactly one writer head, matching the constructor’s enforced invariant. ",{"_93":326,"_42":85,"_97":326,"_1770":1771,"_1772":1773,"_1774":1775,"_133":-5,"_120":1776},[84],"input_items",[1794,1795,1796,1797,1798,1799,1800,1801,1802,1803,1804],"external_post_config",{"_1777":1778,"_264":197,"_1779":306,"_275":-5,"_1029":258,"_1780":-5,"_1781":-5,"_1782":1783,"_1784":1785,"_1786":-5,"_1787":-5,"_1788":1789,"_1790":15,"_1791":59,"_1792":54,"_1793":15},"user_model_slug","slug",1781515928.266513,"installation_id",89912914,"pr_number","gitlab_service_account_project_id","review_trigger","comment_id",4706494917,"comment_type","issue","pr_write_guard_token","pending_pr_reaction_id","pending_comment_reaction_id",370071118,"comment_if_no_findings","comment_on_error","share_url","is_parallel_review",{"_93":472,"_97":326,"_466":1826},{"_313":314,"_315":316,"_1823":320,"_1824":130,"_322":-5,"_93":1825},{"_93":1805,"_315":1822,"_162":-5,"_1807":-5,"_1808":-5},{"_93":1805,"_315":1821,"_162":-5,"_1807":-5,"_1808":-5},{"_93":1805,"_315":1820,"_162":-5,"_1807":-5,"_1808":-5},{"_93":1805,"_315":1819,"_162":-5,"_1807":-5,"_1808":-5},{"_93":1805,"_315":1818,"_162":-5,"_1807":-5,"_1808":-5},{"_93":1805,"_315":1816,"_162":1051,"_1807":1811,"_1808":1817},{"_93":1805,"_315":1813,"_162":1814,"_1807":1811,"_1808":1815},{"_93":1805,"_315":1809,"_162":1810,"_1807":1811,"_1808":1812},{"_93":1805,"_315":1806,"_162":-5,"_1807":-5,"_1808":-5},"pull_request_comment","**Actionable comments posted: 3**\n\n
\n
🤖 Prompt for all review comments with AI agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nInline comments:\nIn `@crates/warp-core/src/strand.rs`:\n- Around line 214-225: The self-support and duplicate-target checks are being\nperformed twice: once in the inline validation code (around lines 214-225) and\nagain in the validate_support_pins function (lines 1020-1042). Since\nStrandRegistry::insert calls both validators in sequence, this creates\nunnecessary duplication and maintenance burden. Remove the self-support and\nduplicate-target validation checks from the validate_support_pins function,\nkeeping only the registry-relative checks that require live strand context (such\nas target liveness and worldline matching validation). This leaves the simpler\nchecks to the inline validator that runs first in the insert flow.\n\nIn `@crates/warp-core/tests/strand_contract_tests.rs`:\n- Around line 681-684: The assertions currently use a broad pattern match that\naccepts any StrandError::InvariantViolation without validating which specific\ninvariant was violated. Replace the generic InvariantViolation pattern match\nwith explicit checks for the invariant error messages or codes (INV-S7 and\nINV-S8 respectively) to ensure that only the expected invariant violations cause\nthe tests to pass, preventing regression failures from being masked by\nviolations of different invariants. This applies to both the assertion at lines\n681-684 and the related assertion at lines 701-704 in the same test file.\n\nIn\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`:\n- Line 6: The three documentation files prematurely claim GP1 is complete\ndespite two unresolved blocking issues (P1 incomplete strand constructor\nboundary validation, P4 BraidError display regression). In\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\nat line 6, change the status from \"implemented\" to \"in progress\" or \"blocked on\nP1/P4\" to reflect the incomplete work. In\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\nthe public forgery prevention acceptance criterion is not satisfied) and add a\nnote referencing the two outstanding issues from the self-code review. In\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\naccurately describe what is currently implemented and explicitly flag what\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\n```\n\n
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\n
🪄 Autofix (Beta)
\n\nFix all unresolved CodeRabbit comments on this PR:\n\n- [ ] Push a commit to this branch (recommended)\n- [ ] Create a new PR with the fixes\n\n
\n\n---\n\n
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ℹ️ Review info
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⚙️ Run configuration
\n\n**Configuration used**: Path: .coderabbit.yaml\n\n**Review profile**: ASSERTIVE\n\n**Plan**: Pro\n\n**Run ID**: `eac0377b-7ef2-44c8-af14-0a24690fc662`\n\n
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📥 Commits
\n\nReviewing files that changed from the base of the PR and between 3d6fdba057491f6c802e0364a0043d5ebc6bb458 and 26ef1b7f7d227022ab537d75da9b8e2c83cd1883.\n\n
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📒 Files selected for processing (11)
\n\n* `CHANGELOG.md`\n* `crates/warp-core/src/braid.rs`\n* `crates/warp-core/src/braid_shell.rs`\n* `crates/warp-core/src/coordinator.rs`\n* `crates/warp-core/src/lib.rs`\n* `crates/warp-core/src/proof.rs`\n* `crates/warp-core/src/strand.rs`\n* `crates/warp-core/tests/braid_public_api_tests.rs`\n* `crates/warp-core/tests/strand_contract_tests.rs`\n* `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\n* `docs/design/braids-and-strands-roadmap.md`\n\n
\n\n
\n\n","side","line","_⚠️ Potential issue_ | _🟠 Major_\n\n**GP1 completion status inconsistent across three documents due to unresolved P1/P4 gaps.**\n\nAll three files claim GP1 is complete or slices S1–S5 are checked, but the PR objectives' self-code review identifies two blocking issues:\n\n- **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Marks status as \"implemented\" despite outstanding P1 (incomplete strand constructor boundary) and P4 (BraidError display regression) issues.\n- **braids-and-strands-roadmap.md#L64–L71:** Checks off GP1-S1 through GP1-S5, but S1 acceptance criterion (public forgery prevention) is not satisfied: `Strand::new(...)` skips writer-head cardinality validation, and `WorldlineRuntime::fork_strand(...)` bypasses the constructor entirely.\n- **CHANGELOG.md#L10–L19:** Claims \"v1 single-writer-head strand invariant [is] enforced\" and \"runtime strand forking constructs the registered relation through the same constructor boundary,\" but both are false: cardinality is unenforced, and fork_strand uses struct literals.\n\n**Shared root cause:** The PR objectives' commit message summary explicitly states the three commits include the main feature plus two follow-up fixes for P1 and P4, suggesting the fixes may not be in this PR. The documents prematurely declare victory over incomplete work.\n\n**Required fixes:**\n\n1. **goalpost-01-lawful-construction-and-typed-failures.md#L6:** Change status from \"implemented\" to \"in progress\" or \"blocked on P1/P4\" until both issues close.\n2. **braids-and-strands-roadmap.md#L64–L71:** Uncheck GP1-S1 (incomplete boundary validation), and add a note flagging the two outstanding issues with references to the self-code review.\n3. **CHANGELOG.md#L10–L19:** Either move these entries to a \"Fixed (GP1 follow-up)\" section after the follow-up commits land, or reword to describe only what is actually implemented (e.g., \"Strand field access moved behind pub(crate), Strand::new validates posture coherence [incomplete cardinality enforcement]\").\n\n
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📍 Affects 3 files
\n\n- `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md#L6-L6` (this comment)\n- `docs/design/braids-and-strands-roadmap.md#L64-L71`\n- `CHANGELOG.md#L10-L19`\n\n
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\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn\n`@docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md`\nat line 6, The three documentation files prematurely claim GP1 is complete\ndespite two unresolved blocking issues (P1 incomplete strand constructor\nboundary validation, P4 BraidError display regression). In\ndocs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md\nat line 6, change the status from \"implemented\" to \"in progress\" or \"blocked on\nP1/P4\" to reflect the incomplete work. In\ndocs/design/braids-and-strands-roadmap.md at lines 64-71, uncheck GP1-S1 (since\nthe public forgery prevention acceptance criterion is not satisfied) and add a\nnote referencing the two outstanding issues from the self-code review. In\nCHANGELOG.md at lines 10-19, either move the GP1 completion claims to a\nfollow-up section scheduled after the P1/P4 fixes land, or reword them to\naccurately describe what is currently implemented and explicitly flag what\nremains incomplete (e.g., note that cardinality enforcement is incomplete).\n```\n\n
\n\n\n\n\n\n\n\n\n\n","docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md","RIGHT",6,"_⚠️ Potential issue_ | _🟡 Minor_ | _⚡ Quick win_\n\n**Strengthen invariant-specific assertions in constructor rejection tests.**\n\nThese assertions accept any `InvariantViolation`, so a failure from the wrong invariant would still pass. Assert INV-S7 and INV-S8 explicitly to keep regression coverage precise.\n\n \n\n
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Suggested patch
\n\n```diff\n- assert!(\n- matches!(err, StrandError::InvariantViolation(_)),\n- \"expected InvariantViolation, got {err:?}\"\n- );\n+ assert!(\n+ matches!(\n+ err,\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\"INV-S7:\")\n+ ),\n+ \"expected INV-S7 violation, got {err:?}\"\n+ );\n@@\n- assert!(\n- matches!(err, StrandError::InvariantViolation(_)),\n- \"expected InvariantViolation, got {err:?}\"\n- );\n+ assert!(\n+ matches!(\n+ err,\n+ StrandError::InvariantViolation(msg) if msg.starts_with(\"INV-S8:\")\n+ ),\n+ \"expected INV-S8 violation, got {err:?}\"\n+ );\n```\n
\n\n\nAlso applies to: 701-704\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/warp-core/tests/strand_contract_tests.rs` around lines 681 - 684, The\nassertions currently use a broad pattern match that accepts any\nStrandError::InvariantViolation without validating which specific invariant was\nviolated. Replace the generic InvariantViolation pattern match with explicit\nchecks for the invariant error messages or codes (INV-S7 and INV-S8\nrespectively) to ensure that only the expected invariant violations cause the\ntests to pass, preventing regression failures from being masked by violations of\ndifferent invariants. This applies to both the assertion at lines 681-684 and\nthe related assertion at lines 701-704 in the same test file.\n```\n\n
\n\n\n\n\n\n","crates/warp-core/tests/strand_contract_tests.rs",684,"_🧹 Nitpick_ | _🔵 Trivial_ | _💤 Low value_\n\n**Duplicate self-support/duplicate-target checks create maintenance burden.**\n\n`validate_support_pins` (lines 1020-1042) performs the same self-support and duplicate-target checks. When `StrandRegistry::insert` calls both validators in sequence, these checks run twice.\n\nConsider removing the duplicated checks from `validate_support_pins` since `insert` calls the local validator first. That method would then only handle registry-relative checks (target liveness, worldline matching) that require live strand context.\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@crates/warp-core/src/strand.rs` around lines 214 - 225, The self-support and\nduplicate-target checks are being performed twice: once in the inline validation\ncode (around lines 214-225) and again in the validate_support_pins function\n(lines 1020-1042). Since StrandRegistry::insert calls both validators in\nsequence, this creates unnecessary duplication and maintenance burden. Remove\nthe self-support and duplicate-target validation checks from the\nvalidate_support_pins function, keeping only the registry-relative checks that\nrequire live strand context (such as target liveness and worldline matching\nvalidation). This leaves the simpler checks to the inline validator that runs\nfirst in the insert flow.\n```\n\n
\n\n\n\n\n\n",225,"Codex Review: Didn't find any major issues. Hooray!\n\n**Reviewed commit:** `26ef1b7f7d`\n\n

ℹ️ About Codex in GitHub
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","Additional CI follow-up on head `eb1f2c68`:\n\n- The first remote rerun exposed a CI-sensitive harness race in `echo-wesley-gen` generation tests: `--no-std --contract-host` is expected to fail before reading stdin, so the parent can observe `BrokenPipe` while writing the fixture IR.\n- Fixed the test harness to tolerate `ErrorKind::BrokenPipe` for early CLI exits and still assert on the child status/stderr. Commit: `eb1f2c68`.\n- Local validation: `cargo test -p echo-wesley-gen --test generation test_contract_host_generation_rejects_no_std -- --exact --nocapture` and full `cargo test -p echo-wesley-gen --test generation` both pass; pre-push reran the full generation suite successfully.\n","Follow-up on the self-review findings. @codex please sanity-check the closure.\n\n| Finding | Severity | Resolution | Commit |\n| --- | --- | --- | --- |\n| `Strand
` constructor/registry did not enforce the v1 single-writer-head invariant, and runtime fork bypassed `Strand::new(...)`. | P1 | Added shared local strand invariant validation, enforced exactly one writer head in both `Strand::new(...)` and `StrandRegistry::insert(...)`, routed `WorldlineRuntime::fork_strand(...)` through `Strand::new(...)`, and added constructor plus runtime rollback regressions. | `14226725` |\n| `BraidTransitionKind` leaked enum debug text in `BraidError::InvalidTransition` display output. | P4 | Added human-facing `Display` for `BraidTransitionKind`, switched the error text to `{transition}`, and added public API display regression coverage. | `26ef1b7f` |\n\nValidation:\n\n- RED witnesses failed before implementation: missing writer head, multiple writer heads, empty-head runtime fork rollback, and braid transition display.\n- GREEN focused witnesses passed after implementation.\n- `cargo fmt --all -- --check`\n- `cargo test -p warp-core --test strand_contract_tests` (31/31)\n- `cargo test -p warp-core --test braid_public_api_tests` (4/4)\n- `cargo test -p warp-core --lib` (561/561)\n- `cargo test -p warp-core --doc` (23 passed / 6 ignored)\n- `cargo clippy -p warp-core --lib -- -D warnings`\n- `git diff --check`\n- `scripts/check_spdx.sh`\n- `pnpm exec markdownlint-cli2 CHANGELOG.md`\n- pre-push exact Rust slices passed on push.\n","## Self-Code Review: Code Lawyer Pass\n\n@codex Please confirm or challenge these findings. I reviewed PR #548 against `origin/main` after a clean worktree gate and `git fetch origin`.\n\n| Severity | File / lines | Infraction | Evidence | Recommended mitigation prompt |\n| --- | --- | --- | --- | --- |\n| P1 | `crates/warp-core/src/strand.rs:167`, `crates/warp-core/src/strand.rs:192`, `crates/warp-core/src/strand.rs:214`, `crates/warp-core/src/strand.rs:234`, `crates/warp-core/src/strand.rs:807`, `crates/warp-core/src/strand.rs:821`, `crates/warp-core/src/coordinator.rs:1610` | The new law-bearing constructor boundary still admits strands with zero or multiple writer heads, and the production fork path still builds a `Strand` through a crate-internal struct literal instead of the constructor. | The field docs state `writer_heads` has cardinality 1 in v1, but `Strand::new(...)` only verifies each head belongs to `child_worldline_id`; it never checks `writer_heads.len() == 1`. `StrandRegistry::insert(...)` repeats the ownership check but also does not check cardinality. `WorldlineRuntime::fork_strand(...)` constructs `Strand { ... }` directly and relies on registry insertion, so any constructor-only invariant added later can be bypassed by production code. | `Fix the strand construction boundary so v1 writer-head cardinality is enforced through one shared local-invariant validator. Add failing tests showing `Strand::new(...)` rejects zero writer heads and two writer heads. Have `Strand::new(...)` and `StrandRegistry::insert(...)` both call the same validator, and replace the production `fork_strand` struct literal with `Strand::new(...)` so production construction goes through the named door.` |\n| P4 | `crates/warp-core/src/braid.rs:57` | `BraidError` display text regressed from human action phrases to Rust debug variant names. | The roadmap says typed transition failures should preserve stable display text for humans while exposing typed variants to callers. The old display produced phrases like `cannot weave member`; the new `#[error(\"cannot transition braid state: cannot {transition:?} ...\")]` renders `cannot WeaveMember`, which is typed but not human-facing. | `Implement `Display` for `BraidTransitionKind` using human action phrases such as `create braid`, `weave member`, `finalize settlement`, and `collapse braid`, then change the error format to `{transition}`. Add a regression asserting the display string remains human-readable while behavior tests continue matching `BraidTransitionKind` variants.` |\n\nSummary: the PR is directionally correct and all local/remote checks are green, but Goalpost 1 should not be considered complete until the strand constructor boundary closes the v1 writer-head cardinality gap and production strand creation uses the named constructor path.\n","\n\n\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/flyingrobots/echo/pull/548?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\n\n\n\n\n> [!WARNING]\n> ## Review limit reached\n> \n> `@flyingrobots`, we couldn't start this review because you've reached your PR review rate limit.\n> \n> More reviews will be available in 52 minutes and 37 seconds. 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📥 Commits
\n> \n> Reviewing files that changed from the base of the PR and between 26ef1b7f7d227022ab537d75da9b8e2c83cd1883 and eb1f2c68d8b55b9815bd64dcd7dc17d03e329432.\n> \n>
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📒 Files selected for processing (1)
\n> \n> * `crates/echo-wesley-gen/tests/generation.rs`\n> \n>
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📝 Walkthrough
\n\n## Walkthrough\n\nImplements GP1 of the braids-and-strands hardening roadmap: `Strand
` fields are restricted to `pub(crate)`, a posture-aware `validate_local_strand_invariants` function is introduced, and a `Strand::new` constructor enforces all local invariants. `ProofEnvelope::validate_shape` switches from `String` errors to a structured `ProofError` enum; `BraidError::InvalidTransition` replaces `action: String` with a typed `BraidTransitionKind`. All call sites, tests, and design docs are updated accordingly.\n\n## Changes\n\n**GP1: Lawful Construction and Typed Failures**\n\n| Layer / File(s) | Summary |\n|---|---|\n| **Typed proof error contracts**
`crates/warp-core/src/proof.rs`, `crates/warp-core/src/lib.rs`, `crates/warp-core/src/braid_shell.rs` | Adds `VerificationFailureCode` and `ProofError` enums via `thiserror`; `ProofEnvelope::validate_shape` returns `Result<(), ProofError>`; `BraidShellError::ProofShapeValidationFailed` carries `ProofError` instead of `String`; both types re-exported from `lib.rs`. |\n| **Typed BraidTransitionKind and InvalidTransition update**
`crates/warp-core/src/braid.rs` | Adds `BraidTransitionKind` enum with `Display`; `BraidError::InvalidTransition` switches from `action: String` to `transition: BraidTransitionKind`; all three `Braid::apply` error sites updated. |\n| **Strand field encapsulation and invariant-enforcing constructor**
`crates/warp-core/src/strand.rs` | `Strand
` fields changed to `pub(crate)`; `validate_local_strand_invariants::
()` added to enforce posture coherence, worldline distinctness, v1 writer-head cardinality/ownership, and support-pin constraints; `pub fn new(...)` constructor and getter accessors exposed; `StrandRegistry::insert` delegates to shared validator. |\n| **Coordinator wired to Strand::new**
`crates/warp-core/src/coordinator.rs` | `WorldlineRuntime::fork_strand` replaces struct literal construction with `Strand::new(...)`; new regression test asserts empty `writer_heads` is rejected and all partial state is rolled back. |\n| **Braid internal + public API tests**
`crates/warp-core/src/braid.rs`, `crates/warp-core/tests/braid_public_api_tests.rs` | Three internal unit tests updated to match `BraidTransitionKind` fields; new public API tests assert typed `InvalidTransition` errors, human-readable display strings, and typed `ProofError` variants from `validate_shape`. |\n| **BraidShell proof validation tests**
`crates/warp-core/src/braid_shell.rs` | Wildcard proof-error matches replaced with structured `ProofError::PublicInputsMismatch`, `ProofError::EmptyPayload`, and `ProofError::UnsupportedKind` assertions. |\n| **Strand contract tests refactored to constructor/accessor API**
`crates/warp-core/tests/strand_contract_tests.rs` | Removes `make_test_strand_raw`, introduces `make_test_strand_with_parts` using `Strand::new`; all field accesses replaced with accessor calls; new constructor rejection tests added for INV-S7, INV-S8, and `Shared` posture without admission scope. |\n| **Design docs and changelog**
`CHANGELOG.md`, `docs/design/braids-and-strands-roadmap.md`, `docs/design/braids-and-strands-hardening/goalpost-01-lawful-construction-and-typed-failures.md` | Goalpost 1 status set to \"implemented\"; GP1-S1 through GP1-S5 checked off in the roadmap tracker; two CHANGELOG entries added. |\n\n## Estimated code review effort\n\n🎯 4 (Complex) | ⏱️ ~60 minutes\n\n## Possibly related PRs\n\n- [flyingrobots/echo#315](https://github.com/flyingrobots/echo/pull/315): Introduced the original `Strand` module and `StrandRegistry`/`Strand` APIs that this PR directly tightens by encapsulating fields and enforcing construction invariants.\n- [flyingrobots/echo#545](https://github.com/flyingrobots/echo/pull/545): Overlaps directly with the typed braid lifecycle/proof error refactoring and posture-validated strand construction that this PR completes.\n\n## Poem\n\n> 🔒 No more forging strands by hand,\n> the fields are locked, the law has land.\n> `BraidTransitionKind` says what went wrong,\n> `ProofError` typed, the contract's strong.\n> GP1: checked — the invariants hold,\n> `Strand::new` guards every fold. 🧵\n\n
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🚥 Pre-merge checks | ✅ 5
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✅ Passed checks (5 passed)
\n\n| Check name | Status | Explanation |\n| :------------------------: | :------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |\n| Title check | ✅ Passed | The title directly and accurately describes the main objective of the PR: hardening strand construction and implementing typed braid failures, which aligns with the core changes across strand.rs, braid.rs, and proof.rs. |\n| Docstring Coverage | ✅ Passed | Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. |\n| Linked Issues check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\n| Out of Scope Changes check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |\n\n
\n\n_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}\n\n
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✨ Finishing Touches
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🧪 Generate unit tests (beta)
\n\n- [ ] Create PR with unit tests\n- [ ] Commit unit tests in branch `hardening/lawful-construction-typed-failures`\n\n
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\n\n\n_{Comment `@coderabbitai help` to get the list of available commands and usage tips.}\n\n\n\n\n\n\n\n","base_ref","head_ref","pull_request_info",[1827],{"_1009":46,"_46":1828},"@codex self-audit found one new documentation precision issue while reviewing the current PR head.\n\n| ID | Severity | Source | File | Lines | Issue | Mitigation |\n| --- | --- | --- | --- | --- | --- | --- |\n| SELF-01 | P5 | Self | `crates/warp-core/src/strand.rs` | constructor docs around `Strand::new(...)` errors | The public constructor now rejects missing/multiple v1 writer heads, but the `# Errors` docs only mention wrong-worldline heads and omit cardinality. | Update the constructor error docs to state the v1 exactly-one-writer-head invariant explicitly. 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