\\n

Show a summary per file

\\n\\n| File | Description |\\\\n| ---- | ----------- |\\\\n| packages/api/src/agents/validation.ts | Widens `req` typing for model validation to accept `ServerRequest` shape. |\\\\n| packages/api/src/agents/index.ts | Re-exports the new discovery helper. |\\\\n| packages/api/src/agents/discovery.ts | Adds shared BFS discovery + ACL gating + edge filtering + MCP auth merging. |\\\\n| packages/api/src/agents/discovery.spec.ts | Adds unit coverage for discovery behavior (multi-hop, orphan/permission filtering, cycles, etc.). |\\\\n| api/server/services/Endpoints/agents/initialize.js | Replaces inline BFS discovery with `discoverConnectedAgents` and keeps tool-context wiring. |\\\\n| api/server/controllers/agents/openai.js | Loads handoff sub-agents for `/v1/chat/completions`, passes full agent list to `createRun`, routes tools by agentId. |\\\\n| api/server/controllers/agents/responses.js | Same as above for `/v1/responses` (streaming + non-streaming). |\\\\n| api/server/controllers/agents/__tests__/openai.spec.js | Updates mocks for new discovery + initialization expectations. |\\\\n| api/server/controllers/agents/__tests__/responses.unit.spec.js | Updates mocks for new discovery + initialization expectations. |\\n

\\n\\n\\n\\n\\n\\n\\n---\\n\\n💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607319818)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove edges that reference skipped agents as sources**\\n\\nAfter discovering sub-agents, this path only applies `filterOrphanedEdges` before returning `edges`, and that helper drops skipped IDs from `to` only. If a skipped/deleted/inaccessible sub-agent appears on the `from` side (for example, a bidirectional graph has `A -> B` and `B -> A`, and `B` is skipped), `B -> A` is still passed to `createRun`, which leaves an edge that references an agent not present in `agents` and can still fail graph compilation instead of gracefully skipping. The returned edge list should remove skipped IDs from both endpoints.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `e9e435b796`\\n \\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\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607435817)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — valid P1. Fixed in 7418dd83b by widening `filterOrphanedEdges` to drop edges where either `from` OR `to` references a skipped id. Added a bidirectional-graph regression test in `discovery.spec.ts` plus updated the `to`-only cases in `edges.spec.ts`.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607630810)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce REMOTE_AGENT ACL when loading handoff sub-agents**\\n\\n`discoverConnectedAgents` authorizes discovered handoff agents with `ResourceType.AGENT`, but the OpenAI-compatible routes are explicitly protected by remote-agent permissions (`createCheckRemoteAgentAccess` / `REMOTE_AGENT`). This lets a caller who can access the orchestrator remotely and has regular AGENT visibility (but not REMOTE_AGENT visibility) execute an unshared sub-agent through `/v1/chat/completions` or `/v1/responses`, bypassing remote-sharing boundaries for sub-agents. The permission check here should be endpoint-aware (or use `REMOTE_AGENT` for these controllers) to preserve the same ACL model as route entry.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `7418dd83b5`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — confirmed the API routes gate on `REMOTE_AGENT` while discovery was only checking `AGENT`. Fixed in e491a23a7: added a `resourceType` param to `discoverConnectedAgents` (defaults to `AGENT` for the in-app chat path) and both API controllers now pass `ResourceType.REMOTE_AGENT` so every discovered sub-agent clears the same sharing boundary the route enforces. Test added in `discovery.spec.ts`.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607836037)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce provider allowlist when initializing handoff agents**\\n\\n`discoverConnectedAgents` forwards `endpointOption` directly into `initializeAgent`, but on the OpenAI-compatible routes this option uses the primary provider endpoint (for example `openai`), not the agents endpoint. Because `initializeAgent` only checks `allowedProviders` when `isAgentsEndpoint(endpointOption.endpoint)` is true, discovered sub-agents bypass the configured provider allowlist and can run disallowed providers via handoff edges.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `e491a23a77`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — confirmed. The OpenAI-compat routes build `endpointOption` with `endpoint: agent.provider` (e.g. `openai`), so the `isAgentsEndpoint`-gated `allowedProviders` guard in `initializeAgent` was being skipped for discovered sub-agents. Fixed in 7ec1ba246: the helper now overrides `endpoint` to `EModelEndpoint.agents` on every per-sub-agent init call so the allowlist is always enforced for handoff targets, regardless of the caller's entry endpoint. Test added.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608090414)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Codex Review: Didn't find any major issues. :rocket:\\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune disconnected sub-agents after orphan edge filtering**\\n\\nAfter `filterOrphanedEdges` removes edges that referenced skipped agents, `discoverConnectedAgents` still returns every initialized sub-agent in `agentConfigs`. In a graph like `A -> B -> C`, if `B` is skipped (missing or no VIEW), `C` is still initialized from the original edge scan, both edges are then removed, and callers pass `C` into `createRun` as an extra agent; because `createRun` switches to multi-agent mode when `agents.length > 1`, `C` can run as an unintended parallel start node even though no surviving edge connects it to `A`. This should prune `agentConfigs` to agents that remain reachable from the primary through the filtered edge set.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `7ec1ba246f`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — confirmed. In an `A -> B -> C` graph (with B's edges stored directly on A), B being skipped stranded C as an initialized-but-disconnected agent, which `createRun` was then turning into a stray parallel start. Fixed in 4cbfffc9e: after `filterOrphanedEdges`, compute the reachability closure from the primary through surviving edges and prune `agentConfigs` to that set. Two regression tests added — one for the pruning case, one that verifies agents on surviving paths are kept.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Drop pruned agents from initializeClient run list**\\n\\n`discoverConnectedAgents` now prunes sub-agents that become unreachable after edge filtering, but this callback writes every initialized sub-agent into `agentConfigs` before that pruning happens, and the later merge step only adds entries (never removes stale ones). In a graph like `A->B` and `B->C` where `B` is skipped (missing/no access), `C` is pruned from the helper result but still remains in `agentConfigs`, so `AgentClient` passes `[A, C]` to `createRun` and `C` can execute as an unintended parallel start node.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"api/server/services/Endpoints/agents/initialize.js\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `4cbfffc9ee`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608464578)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — this was the missing reconciliation in `initialize.js` after the pass-4 prune. Fixed in e54440b7d: the callback no longer writes `agentConfigs` (it fires during BFS, before the helper knows which agents will end up disconnected), and the outer merge step now copies directly from the pruned `discoveredConfigs` — so stranded sub-agents like `C` in `A->B->C` with B skipped are no longer handed to `AgentClient`. The API controllers (openai.js / responses.js) were already using the helper's returned map directly, so they were unaffected.\",\"path\":\"api/server/services/Endpoints/agents/initialize.js\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Hit the 5-round cap on codex review iterations. Summary of landed fixes from this review loop (all codex P1 findings, all validated as real bugs):\\n\\n| Pass | Commit | Fix |\\n| --- | --- | --- |\\n| 1 | 7418dd83b | `filterOrphanedEdges` now drops edges where either `from` or `to` references a skipped agent — previously only `to` was checked, leaking `B -> A` through on a bidirectional graph where `B` was skipped. |\\n| 2 | e491a23a7 | API routes now pass `ResourceType.REMOTE_AGENT` to `discoverConnectedAgents` — previously sub-agents were authorized against the looser `AGENT` resource, letting a caller bypass the remote-sharing boundary for handoff targets. |\\n| 3 | 7ec1ba246 | Sub-agent init now forces `endpointOption.endpoint = EModelEndpoint.agents` so `initializeAgent`'s `isAgentsEndpoint`-gated `allowedProviders` guard always fires — previously the OpenAI-compat routes passed the primary's provider as the endpoint, bypassing the provider allowlist. |\\n| 4 | 4cbfffc9e | After `filterOrphanedEdges`, agents unreachable from the primary via surviving edges are pruned from `agentConfigs` — previously a stranded `C` in `A -> B -> C` (with `B` skipped) survived as a stray parallel start node. |\\n| 5 | e54440b7d | `initialize.js` no longer seeds the outer `agentConfigs` from the pre-pruning BFS callback — now copies directly from the helper's pruned result, so the pass-4 fix actually lands on the in-app chat path too. |\\n\\nCI is green. Happy to run another pass if anything here looks wrong, but otherwise this is ready.\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable edges before returning discovery result**\\n\\nAfter computing `reachable`, this function deletes disconnected agent configs but still returns the original `edges` array unchanged. In graphs where a skipped intermediate node disconnects a downstream subgraph (for example `A->B->C` with `B` skipped and `C` having `C->D`), `agentConfigs` drops `C/D` but `edges` can still contain `C->D`, so `createRun` receives edges that reference agents not present in `agents` and can fail multi-agent graph compilation with unknown-node errors. The returned edges should be filtered to only include endpoints in the reachable set.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":441}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `e54440b7d1`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608658217)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"External audit follow-up — landed in e0003544a. Summary of findings:\\n\\n| # | Severity | Verdict | Resolution |\\n|---|----------|---------|------------|\\n| 1 | CRITICAL | Valid | **Fixed.** `A -> B -> C -> D` with B skipped — `filterOrphanedEdges` left `C->D` behind, the reachability prune dropped C/D from `agentConfigs` but not from the returned edges, and `createRun` crashed on the mismatch. Now the reachability pass prunes both the config map and the edge list in one pass so the returned shape is self-consistent. Regression test added. |\\n| 2 | MAJOR | Valid | **Fixed.** `getModelsConfig` + `discoverConnectedAgents` now only run when `primaryConfig.edges?.length > 0`. Single-agent API calls (the common case) bypass both. |\\n| 3 | MAJOR | Deferred | Real duplication across the three call sites. Bug-fix PR scope — per AGENTS.md, not doing the refactor here. Worth tracking as follow-up. |\\n| 4 | MAJOR | Valid | **Fixed** alongside #1 (same scenario). `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` in `discovery.spec.ts` asserts every returned edge references only `primaryConfig.id` or a key of `agentConfigs`. |\\n| 5 | MINOR | Valid | **Fixed.** Shallow-clone `primaryConfig.userMCPAuthMap` before merging sub-agent entries so the caller's config is no longer silently mutated. Test added. |\\n| 6 | MINOR | Deferred | `responses.js` streaming/non-streaming branches do share a near-identical `toolExecuteOptions.loadTools` closure; extracting it requires hoisting branch-local `tracker`/`artifactPromises`/`toolEndCallback` state. Same scope call as #3. |\\n| 7 | NIT | Valid | **Fixed.** `discoveredEdges ?? []` was dead (helper always returns a concrete array). `primaryConfig.edges = discoveredEdges` now. |\\n\\nAll tests green (16 in `discovery.spec.ts`, 46 across `discovery` + `edges`, 24 across the three controller/service suites). TS check clean.\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608989870)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Yep — confirmed and fixed in e0003544a. The reachability pass now filters both `agentConfigs` (unchanged) and the returned `edges` list in the same step, so `A->B->C->D` with B skipped correctly drops `C->D` instead of letting it through to `createRun`. Regression test `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` asserts every returned edge endpoint is either `primaryConfig.id` or a key of `agentConfigs`.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":441}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Respect all sources when expanding multi-source edges**\\n\\nThe reachability pass in `discoverConnectedAgents` advances an edge when the current node is *any* member of `edge.from` (`sources.includes(current)`), but later the same function keeps edges only when *all* `from` endpoints are reachable. For a graph like `from: ['A','B'], to: 'C'` where `B` has no path from `A`, this marks `C` reachable, prunes `B`, drops the edge, and still returns `C` in `agentConfigs`; `createRun` then flips into multi-agent mode because there are multiple agents, so `C` can run as an unintended root. The expansion step should require all `from` nodes to be reachable before adding destinations.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `e0003544a6`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Right call — confirmed by reading `agents/src/graphs/MultiAgentGraph.ts`. Both the handoff branch (~L752) and the non-prompt direct branch (~L1107) loop `for (const source of sources) builder.addEdge(source, destination)`, so a multi-source edge is really per-source OR semantics at runtime.\\n\\nFixed in 6879f4599:\\n1. Reachability uses `some` (any source reachable → dest reachable) — matches SDK.\\n2. Edge filter: keep edge if at least one source is reachable AND every destination is reachable (a missing destination still crashes `StateGraph.compile`).\\n3. Agent prune: keep agents reachable from primary OR referenced on any endpoint of a surviving edge. That second clause preserves co-sources like B in `{from: ['A','B'], to: 'C'}` when B has no incoming path, so the SDK's per-source `addEdge` (and my `validateEdgeAgents` safety-net in #111) still finds B as a node.\\n\\nPass-7's regression test (the `A -> B -> C -> D` skipped-B case from the external audit) still holds under these semantics because its only surviving candidate edge `C -> D` has no reachable source — it gets filtered, and C/D fall out as neither-reachable-nor-referenced.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":351}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Keep valid routes when filtering multi-source edges**\\n\\nThis drops an edge whenever *any* `from` source is skipped, which is too aggressive for multi-source edges. In `MultiAgentGraph.createWorkflow`, each source in `from: ['A','B']` is treated as an independent route to the destination, so if only `B` is inaccessible/deleted, the `A -> ...` handoff is still valid. With the current filter, that valid path is removed entirely, so users can lose expected handoffs whenever one co-source is skipped.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/edges.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `6879f4599c`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — confirmed. Fixed in 0de3684be. Both API controllers now build their `checkPermission` wrapper using `getRemoteAgentPermissions` (imported from `@librechat/api`) with `getEffectivePermissions` injected from `PermissionService`, and compare the resulting bitmask against the required permission via `hasPermissions`. That mirrors what `createCheckRemoteAgentAccess` does at the route, so sub-agents owned by the caller (SHARE on AGENT, no explicit REMOTE_AGENT grant) are no longer silently skipped.\",\"path\":\"api/server/controllers/agents/openai.js\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24647457636)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Codex Review: Didn't find any major issues. Nice work!\\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve valid multi-start branches during reachability prune**\\n\\nSeeding reachability with only `primaryConfig.id` causes this helper to drop edge-defined components that are intentionally disconnected from the primary (for example, a valid `B -> C` branch where `B` has no incoming edges). `MultiAgentGraph` treats no-incoming agents as start nodes, so those branches previously executed in parallel, but this filter now removes both their edges and agent configs, changing runtime behavior for existing multi-start graphs in every caller of `discoverConnectedAgents`.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `0de3684be9`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — reconciled with the earlier pass-4 'prune accidental orphans' using pre-filter reachability as the signal. Fixed in 7cc7aedea.\\n\\n- Agents that were reachable from the primary via the **pre-filter** edges but lose that path after `filterOrphanedEdges` runs are accidental orphans (a skipped hop broke the chain) → prune.\\n- Agents that were **never** reachable from the primary, even pre-filter, are intentional parallel starts → seed them into post-filter reachability so their component survives.\\n\\nNew test `preserves user-defined parallel-start branches disconnected from the primary` covers the `A -> B` + `X -> Y` scenario. The pass-audit `A -> B -> C -> D, B skipped` regression test still passes because C/D were pre-filter reachable through B and lose that reachability post-filter.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648108824)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Seed only disconnected branch roots after filtering**\\n\\n`postFilterSeeds` currently adds every initialized agent that was not reachable from the primary in the pre-filter graph. In a graph with a disconnected component like `X -> Y`, if `X` is skipped (missing/no VIEW) but `Y` loads, `Y` is still seeded here, so discovery returns `agents: [primary, Y]` with no connecting edge; `createRun` then treats `Y` as an unintended start node and executes it in parallel. This is a behavior regression in ACL/orphan scenarios and can trigger tool execution for agents that should have been pruned with their skipped upstream.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":397}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `7cc7aedea0`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Good catch — fixed in 54de02cb6. Tightened the seed criterion from 'not pre-filter reachable from primary' to 'no incoming edge in pre-filter graph'. That catches the Y in `X -> Y` case: Y had an incoming edge pre-filter, so it's a downstream step, not a legitimate parallel start — and when X gets skipped, Y is correctly pruned rather than promoted to a root. Regression test `does not promote a downstream orphan to a parallel start when its only upstream is skipped` added; the pass-11 parallel-start preservation test still passes (X in the user-defined `X -> Y` branch has no incoming pre-filter, so it's still seeded).\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":397}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648426265)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove AGENT-only file filter from remote agent initialization**\\n\\nPassing `filterFilesByAgentAccess` into `initializeAgent` here makes remote API calls enforce `ResourceType.AGENT` on attached context files (`api/server/services/Files/permissions.js` uses `resourceType: ResourceType.AGENT` at the access check), even though this route authorizes callers with `REMOTE_AGENT` permissions via `getRemoteAgentPermissions`. A user who has `REMOTE_AGENT_VIEWER` but no `AGENT_VIEW` can invoke the shared agent, but all owner-attached context files get filtered out, so tools like `file_search`/context-backed retrieval silently stop working for remote consumers; the same regression is also introduced in `responses.js` with the identical `dbMethods` wiring.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"api/server/controllers/agents/openai.js\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `54de02cb61`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Right — this was a regression I introduced when I refactored the DB-method bundle into a shared `dbMethods` object. Fixed in 6ce34624e: both API controllers now omit `filterFilesByAgentAccess` from `dbMethods` (and drop the now-unused import). The in-app chat `initialize.js` keeps it because that path legitimately authorizes at the AGENT level.\\n\\nThis restores the pre-refactor API behavior — `primeResources` sees `filterFiles: undefined` and skips the per-file ACL check, so `REMOTE_AGENT_VIEWER`-only callers get the owner-attached context files the route's `getRemoteAgentPermissions` has already decided they can see.\",\"path\":\"api/server/controllers/agents/openai.js\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648814572)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Codex Review: Didn't find any major issues. Swish!\\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `6ce34624e8`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable co-sources from surviving edges**\\n\\nWhen an upstream agent is skipped, a multi-source edge can still reference a source that is no longer reachable (for example `A->C`, skipped `X->B`, and `['B','C']->D`). This loop keeps `B` solely because it is still referenced by `edges`, so `createRun` includes `B` even though the reachability pass excluded it. In `MultiAgentGraph.analyzeGraph`, that leaves `B` with no incoming edges and it executes as an unintended parallel start node, which changes workflow behavior after permission/orphan filtering.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":440}{\"type\":\"pull_request_comment\",\"body\":\"Good call — fixed in 718b0000b. Instead of keeping unreachable co-sources via the `referencedByEdge` fallback (which then propped B up as an incoming-less parallel root), surviving multi-source edges now get their `from` array sanitized to drop any unreachable co-source. `[B,C] -> D` in the scenario you described becomes `[C] -> D`, every endpoint of every surviving edge is guaranteed to be in `reachable`, and the agent prune collapses to a strict `reachable.has(agentId)` check. Regression test `strips unreachable co-sources from surviving multi-source edges (no stray parallel root)` asserts B is absent from every surviving edge endpoint; all 22 prior discovery tests still pass unchanged.\",\"path\":\"packages/api/src/agents/discovery.ts\",\"side\":\"RIGHT\",\"line\":440}{\"type\":\"pull_request_comment\",\"body\":\"### GitNexus: 🚀 deployed\\n\\nThe `LibreChat-pr-12740` index is now live on the MCP server.\\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24649413324)\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Codex Review: Didn't find any major issues. :tada:\\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}","text_elements",[],{"_336":418,"_323":324,"_338":326},{"_339":419,"_341":-5,"_41":-5,"_342":-5,"_94":289,"_90":344},[420],{"_45":414,"_90":421},"input_text","turn/started",{"_323":324,"_85":424},{"_101":-5,"_41":326,"_327":425,"_329":426},[],"inProgress",{"_329":428,"_323":324},{"_429":430,"_90":431},"activeFlags",[],"active",{"_336":433,"_323":324,"_338":434},{"_339":435,"_341":-5,"_41":-5,"_342":-5,"_94":289,"_90":344},"auto-compact-0",[436,437],{"_45":439,"_90":421},{"_45":438,"_90":421},"\n /workspace/LibreChat\n bash\n 2026-04-20\n Etc/UTC\n","# AGENTS.md instructions for /workspace/LibreChat\n\n\nCLAUDE.md\n\n\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- 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",{"_336":441,"_323":324,"_338":434},{"_339":442,"_341":-5,"_41":-5,"_342":-5,"_94":443,"_90":344},[444],"developer",{"_45":445,"_90":421},"\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","thread/started",{"_448":449},"thread",{"_450":-5,"_451":-5,"_452":453,"_454":455,"_380":381,"_456":15,"_457":-5,"_458":-5,"_41":324,"_459":460,"_166":-5,"_155":461,"_462":184,"_386":463,"_329":464,"_75":465,"_466":455},"agentNickname","agentRole","cliVersion","0.114.0","createdAt",1776662359,"ephemeral","forkedFromId","gitInfo","modelProvider","openai","/opt/codex/sessions/2026/04/20/rollout-2026-04-20T05-19-19-019da954-2d27-7382-9fdb-a2f9079fe00f.jsonl","preview","vscode",{"_90":333},[],"updatedAt",[],"messages",[470],{"_41":471,"_472":473,"_474":475,"_476":475,"_339":477,"_329":478,"_341":-5,"_479":31,"_480":481,"_482":483,"_484":-5},"00b3db84-ac3f-4159-8fd6-4ec7b7146ce6","author",{"_94":289,"_166":-5,"_480":493},"create_time",1776662358.965832,"update_time",{"_489":45,"_490":491},"finished_successfully","weight","metadata",{"_485":486},"recipient","all","channel","l1239dk1",{"_487":488},"inline_comments",[],"content_type","parts",[492],"Codex has converged — two consecutive `@codex review` requests on the current tip (718b0000b) cleared without surfacing new findings. All CI green. Final tally of landed fixes from the review loop:\n\n### Initial bug fix\n- **e9e435b79** — Main fix: shared `discoverConnectedAgents` helper + wired into both OpenAI-compat controllers.\n- **5cc74e387** — CI TypeScript check on the test helper type.\n\n### Codex passes 1–6 (initial six iterations)\n| Pass | Commit | Severity | Fix |\n|---|---|---|---|\n| 1 | 7418dd83b | P1 | `filterOrphanedEdges` drops edges whose `from` endpoint is skipped (not just `to`). |\n| 2 | e491a23a7 | P1 | API routes pass `ResourceType.REMOTE_AGENT` so sub-agents honor the remote-sharing boundary. |\n| 3 | 7ec1ba246 | P1 | Sub-agents init with `endpoint: agents` so `allowedProviders` always enforces. |\n| 4 | 4cbfffc9e | P1 | Prune agents unreachable via surviving edges so stranded sub-agents don't become stray roots. |\n| 5 | e54440b7d | P1 | `initialize.js` copies `agentConfigs` from the pruned helper result instead of via the pre-pruning callback. |\n| 6 | e0003544a | P1 | Reachability-based edge prune also filters the returned `edges` list (caught by external audit + codex). |\n\n### External audit follow-up\n- **e0003544a** — Findings 1/2/4/5/7: filter stale edges, gate `getModelsConfig` behind `edges?.length`, clone `userMCPAuthMap`, drop dead `?? []`.\n- **6450aa875** — Audit NITs: clone in the else branch for symmetry, drop dead `!edges` guard in `initialize.js`.\n\n### Codex passes 7–14 (second wave)\n| Pass | Commit | Severity | Fix |\n|---|---|---|---|\n| 7 | 4982f1c3b | P1 | (superseded by pass-8) Initial attempt at fan-in reachability. |\n| 8 | 6879f4599 | P1 | SDK treats multi-source edges as per-source `addEdge` (OR) — reverted pass-7 to match. |\n| 9 | 222716d19 | P2 | `filterOrphanedEdges` strips skipped co-members from arrays instead of dropping whole edges. |\n| 10 | 0de3684be | P1 | API controllers use `getRemoteAgentPermissions` so AGENT owners (SHARE bit) aren't silently skipped. |\n| 11 | 7cc7aedea | P2 | Preserve user-defined parallel-start branches disconnected from the primary. |\n| 12 | 54de02cb6 | P1 | Tighten parallel-start seed to \"no incoming edge in pre-filter graph\" — downstream orphans don't get promoted. |\n| 13 | 6ce34624e | P1 | Remove `filterFilesByAgentAccess` from API `dbMethods` (AGENT ACL → REMOTE_AGENT ACL regression). |\n| 14 | 718b0000b | P1 | Sanitize unreachable co-sources from surviving multi-source edges (no stray parallel roots). |\n\n### Tests\n- **23 discovery tests** covering every scenario codex raised.\n- **30 edges tests** covering the sanitized orphan filter.\n- **24 controller/service tests** passing for openai, responses, initialize.\n- Every CI job green.\n\nThe companion agents-SDK change ([danny-avila/agents#111](https://github.com/danny-avila/agents/pull/111)) was clean from codex in a single pass and remains unchanged.\n🤝 fix: Load Handoff Agents for Agents API\n\n## Summary\n\nFixes [#12726](https://github.com/danny-avila/LibreChat/issues/12726) — the OpenAI-compatible `/v1/chat/completions` and Open Responses `/v1/responses` endpoints throw `Found edge ending at unknown node ` when the target agent has handoff edges to sub-agents.\n\n- Extracts the chat UI's BFS discovery + ACL-gated sub-agent initialization into a shared `discoverConnectedAgents` helper in `packages/api/src/agents/discovery.ts`.\n- Wires the helper into the two OpenAI-compat controllers so they pass `[primaryConfig, ...subAgentConfigs]` to `createRun` and route per-agent tool calls via a keyed `agentToolContexts` map (matching what `initializeClient` already does).\n- Filters orphaned edges (deleted sub-agents or sub-agents the caller lacks `VIEW` permission on) so the error path matches the existing chat UI behavior.\n- Collapses the previously-inline BFS in `api/server/services/Endpoints/agents/initialize.js` to the new helper — no behavior change, just deduplication.\n\n## Root cause\n\n`primaryConfig.edges` is always loaded from the DB. `packages/api/src/agents/run.ts:417` routes to `MultiAgentGraph` whenever `edges.length > 0`, regardless of `agents.length`. The chat UI's `initializeClient` had its own BFS that loaded every sub-agent referenced by those edges; the API controllers skipped that step and handed `createRun` a single-agent `agents: [primaryConfig]` with unresolved edges, which StateGraph then rejects at compile time.\n\n## Test plan\n\n- [x] New unit tests: `packages/api/src/agents/discovery.spec.ts` — 9 cases covering multi-hop BFS, orphaned-agent filtering, permission-denied filtering, dedup / cycle safety, legacy `agent_ids` chain, MCP auth merge, validation failure, missing user.\n- [x] Existing `server/services/Endpoints/agents/initialize.spec.js` still passes — adapted to the shared helper via DI overrides.\n- [x] `server/controllers/agents/__tests__/openai.spec.js` and `responses.unit.spec.js` updated with the new mocks; 22 tests pass.\n- [x] All `packages/api/src/agents` tests pass (396 / 396, excluding the pre-existing tiktoken ESM e2e failure that's unrelated).\n- [x] All `api/server/controllers/agents` + `api/server/services/Endpoints/agents` tests pass (208 / 208).\n- [x] Lint + rollup build clean across all workspaces.\n- [ ] **Manual**: POST to `/api/agents/v1/chat/completions` and `/api/agents/v1/responses` (streaming + non-streaming) with an orchestrator agent → expect handoff, not 500.\n- [ ] **Manual regression**: UI chat with the same orchestrator agent still works.\n- [ ] **Manual**: sub-agent deleted after orchestrator → API call still succeeds (orphan filter).\n- [ ] **Manual**: user API key lacks VIEW on a sub-agent → request skips that sub-agent and succeeds.\n\n## Companion change\n\nA matching safety-net fix in [`danny-avila/agents`](https://github.com/danny-avila/agents) adds early validation in `MultiAgentGraph` so future consumers who hand it mismatched `agents`/`edges` get a clear `edges reference agent(s) not present in agents` error instead of the cryptic LangGraph one.\n`createSequentialChainEdges([primaryConfig.id, ...agent_ids])` can generate direct edges where the `from` agent was skipped (missing/forbidden/validation error). Since `filterOrphanedEdges` only filters by `to`, an edge like `C -> D` can remain even if `C` was skipped, which can still break graph compilation due to an unknown start node. Consider building chain edges only from the successfully initialized chain IDs (preserving order but compressing out skipped IDs), or additionally filtering chain edges where `from` is in `skippedAgentIds`.\n`getModelsConfig(req)` can be expensive (it loads default+config models and may call upstream providers on cache miss). In this controller it runs on every request even when the primary agent has no edges/agent_ids (i.e., no discovery needed). Consider gating the modelsConfig load + `discoverConnectedAgents` call behind a cheap check like `(primaryConfig.edges?.length ?? 0) > 0 || (primaryConfig.agent_ids?.length ?? 0) > 0` to avoid extra latency and upstream calls for single-agent runs.\n`getModelsConfig(req)` (default+config model load) can add significant overhead and potential upstream calls on cache misses. Here it runs unconditionally, even when there are no primary edges/agent_ids and thus no handoff discovery to perform. Consider skipping modelsConfig loading and `discoverConnectedAgents` entirely unless the primary agent actually has edges/agent_ids.\n## Pull request overview\n\nFixes multi-agent handoff failures on the OpenAI-compatible `/v1/chat/completions` and Open Responses `/v1/responses` endpoints by ensuring all edge-referenced sub-agents are discovered, ACL-checked, initialized, and included in the `createRun()` agent list (matching the UI initialize flow).\n\n**Changes:**\n- Introduces a shared BFS-based `discoverConnectedAgents` helper to load reachable sub-agents, merge MCP auth, and filter orphaned edges.\n- Updates OpenAI-compat and Responses controllers to use discovered `[primary, ...subAgents]` and to route tool execution via per-agent tool contexts.\n- Refactors the UI `initializeClient` flow to reuse the shared helper and updates unit tests/mocks accordingly.\n\n### Reviewed changes\n\nCopilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.\n\n

Show a summary per file

\n\n| File | Description |\\n| ---- | ----------- |\\n| packages/api/src/agents/validation.ts | Widens `req` typing for model validation to accept `ServerRequest` shape. |\\n| packages/api/src/agents/index.ts | Re-exports the new discovery helper. |\\n| packages/api/src/agents/discovery.ts | Adds shared BFS discovery + ACL gating + edge filtering + MCP auth merging. |\\n| packages/api/src/agents/discovery.spec.ts | Adds unit coverage for discovery behavior (multi-hop, orphan/permission filtering, cycles, etc.). |\\n| api/server/services/Endpoints/agents/initialize.js | Replaces inline BFS discovery with `discoverConnectedAgents` and keeps tool-context wiring. |\\n| api/server/controllers/agents/openai.js | Loads handoff sub-agents for `/v1/chat/completions`, passes full agent list to `createRun`, routes tools by agentId. |\\n| api/server/controllers/agents/responses.js | Same as above for `/v1/responses` (streaming + non-streaming). |\\n| api/server/controllers/agents/__tests__/openai.spec.js | Updates mocks for new discovery + initialization expectations. |\\n| api/server/controllers/agents/__tests__/responses.unit.spec.js | Updates mocks for new discovery + initialization expectations. |\n

\n\n\n\n\n\n\n---\n\n💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607319818)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove edges that reference skipped agents as sources**\n\nAfter discovering sub-agents, this path only applies `filterOrphanedEdges` before returning `edges`, and that helper drops skipped IDs from `to` only. If a skipped/deleted/inaccessible sub-agent appears on the `from` side (for example, a bidirectional graph has `A -> B` and `B -> A`, and `B` is skipped), `B -> A` is still passed to `createRun`, which leaves an edge that references an agent not present in `agents` and can still fail graph compilation instead of gracefully skipping. The returned edge list should remove skipped IDs from both endpoints.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e9e435b796`\n \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

\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607435817)\nGood catch — valid P1. Fixed in 7418dd83b by widening `filterOrphanedEdges` to drop edges where either `from` OR `to` references a skipped id. Added a bidirectional-graph regression test in `discovery.spec.ts` plus updated the `to`-only cases in `edges.spec.ts`.\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607630810)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce REMOTE_AGENT ACL when loading handoff sub-agents**\n\n`discoverConnectedAgents` authorizes discovered handoff agents with `ResourceType.AGENT`, but the OpenAI-compatible routes are explicitly protected by remote-agent permissions (`createCheckRemoteAgentAccess` / `REMOTE_AGENT`). This lets a caller who can access the orchestrator remotely and has regular AGENT visibility (but not REMOTE_AGENT visibility) execute an unshared sub-agent through `/v1/chat/completions` or `/v1/responses`, bypassing remote-sharing boundaries for sub-agents. The permission check here should be endpoint-aware (or use `REMOTE_AGENT` for these controllers) to preserve the same ACL model as route entry.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7418dd83b5`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — confirmed the API routes gate on `REMOTE_AGENT` while discovery was only checking `AGENT`. Fixed in e491a23a7: added a `resourceType` param to `discoverConnectedAgents` (defaults to `AGENT` for the in-app chat path) and both API controllers now pass `ResourceType.REMOTE_AGENT` so every discovered sub-agent clears the same sharing boundary the route enforces. Test added in `discovery.spec.ts`.\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607836037)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce provider allowlist when initializing handoff agents**\n\n`discoverConnectedAgents` forwards `endpointOption` directly into `initializeAgent`, but on the OpenAI-compatible routes this option uses the primary provider endpoint (for example `openai`), not the agents endpoint. Because `initializeAgent` only checks `allowedProviders` when `isAgentsEndpoint(endpointOption.endpoint)` is true, discovered sub-agents bypass the configured provider allowlist and can run disallowed providers via handoff edges.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e491a23a77`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — confirmed. The OpenAI-compat routes build `endpointOption` with `endpoint: agent.provider` (e.g. `openai`), so the `isAgentsEndpoint`-gated `allowedProviders` guard in `initializeAgent` was being skipped for discovered sub-agents. Fixed in 7ec1ba246: the helper now overrides `endpoint` to `EModelEndpoint.agents` on every per-sub-agent init call so the allowlist is always enforced for handoff targets, regardless of the caller's entry endpoint. Test added.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608090414)\nCodex Review: Didn't find any major issues. :rocket:\n\n

ℹ️ About Codex in GitHub

\n@codex review\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune disconnected sub-agents after orphan edge filtering**\n\nAfter `filterOrphanedEdges` removes edges that referenced skipped agents, `discoverConnectedAgents` still returns every initialized sub-agent in `agentConfigs`. In a graph like `A -> B -> C`, if `B` is skipped (missing or no VIEW), `C` is still initialized from the original edge scan, both edges are then removed, and callers pass `C` into `createRun` as an extra agent; because `createRun` switches to multi-agent mode when `agents.length > 1`, `C` can run as an unintended parallel start node even though no surviving edge connects it to `A`. This should prune `agentConfigs` to agents that remain reachable from the primary through the filtered edge set.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7ec1ba246f`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — confirmed. In an `A -> B -> C` graph (with B's edges stored directly on A), B being skipped stranded C as an initialized-but-disconnected agent, which `createRun` was then turning into a stray parallel start. Fixed in 4cbfffc9e: after `filterOrphanedEdges`, compute the reachability closure from the primary through surviving edges and prune `agentConfigs` to that set. Two regression tests added — one for the pruning case, one that verifies agents on surviving paths are kept.\n@codex review\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Drop pruned agents from initializeClient run list**\n\n`discoverConnectedAgents` now prunes sub-agents that become unreachable after edge filtering, but this callback writes every initialized sub-agent into `agentConfigs` before that pruning happens, and the later merge step only adds entries (never removes stale ones). In a graph like `A->B` and `B->C` where `B` is skipped (missing/no access), `C` is pruned from the helper result but still remains in `agentConfigs`, so `AgentClient` passes `[A, C]` to `createRun` and `C` can execute as an unintended parallel start node.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4cbfffc9ee`\n \n\n

ℹ️ About Codex in GitHub

\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608464578)\nGood catch — this was the missing reconciliation in `initialize.js` after the pass-4 prune. Fixed in e54440b7d: the callback no longer writes `agentConfigs` (it fires during BFS, before the helper knows which agents will end up disconnected), and the outer merge step now copies directly from the pruned `discoveredConfigs` — so stranded sub-agents like `C` in `A->B->C` with B skipped are no longer handed to `AgentClient`. The API controllers (openai.js / responses.js) were already using the helper's returned map directly, so they were unaffected.\nHit the 5-round cap on codex review iterations. Summary of landed fixes from this review loop (all codex P1 findings, all validated as real bugs):\n\n| Pass | Commit | Fix |\n| --- | --- | --- |\n| 1 | 7418dd83b | `filterOrphanedEdges` now drops edges where either `from` or `to` references a skipped agent — previously only `to` was checked, leaking `B -> A` through on a bidirectional graph where `B` was skipped. |\n| 2 | e491a23a7 | API routes now pass `ResourceType.REMOTE_AGENT` to `discoverConnectedAgents` — previously sub-agents were authorized against the looser `AGENT` resource, letting a caller bypass the remote-sharing boundary for handoff targets. |\n| 3 | 7ec1ba246 | Sub-agent init now forces `endpointOption.endpoint = EModelEndpoint.agents` so `initializeAgent`'s `isAgentsEndpoint`-gated `allowedProviders` guard always fires — previously the OpenAI-compat routes passed the primary's provider as the endpoint, bypassing the provider allowlist. |\n| 4 | 4cbfffc9e | After `filterOrphanedEdges`, agents unreachable from the primary via surviving edges are pruned from `agentConfigs` — previously a stranded `C` in `A -> B -> C` (with `B` skipped) survived as a stray parallel start node. |\n| 5 | e54440b7d | `initialize.js` no longer seeds the outer `agentConfigs` from the pre-pruning BFS callback — now copies directly from the helper's pruned result, so the pass-4 fix actually lands on the in-app chat path too. |\n\nCI is green. Happy to run another pass if anything here looks wrong, but otherwise this is ready.\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable edges before returning discovery result**\n\nAfter computing `reachable`, this function deletes disconnected agent configs but still returns the original `edges` array unchanged. In graphs where a skipped intermediate node disconnects a downstream subgraph (for example `A->B->C` with `B` skipped and `C` having `C->D`), `agentConfigs` drops `C/D` but `edges` can still contain `C->D`, so `createRun` receives edges that reference agents not present in `agents` and can fail multi-agent graph compilation with unknown-node errors. The returned edges should be filtered to only include endpoints in the reachable set.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e54440b7d1`\n \n\n

ℹ️ About Codex in GitHub

\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608658217)\nExternal audit follow-up — landed in e0003544a. Summary of findings:\n\n| # | Severity | Verdict | Resolution |\n|---|----------|---------|------------|\n| 1 | CRITICAL | Valid | **Fixed.** `A -> B -> C -> D` with B skipped — `filterOrphanedEdges` left `C->D` behind, the reachability prune dropped C/D from `agentConfigs` but not from the returned edges, and `createRun` crashed on the mismatch. Now the reachability pass prunes both the config map and the edge list in one pass so the returned shape is self-consistent. Regression test added. |\n| 2 | MAJOR | Valid | **Fixed.** `getModelsConfig` + `discoverConnectedAgents` now only run when `primaryConfig.edges?.length > 0`. Single-agent API calls (the common case) bypass both. |\n| 3 | MAJOR | Deferred | Real duplication across the three call sites. Bug-fix PR scope — per AGENTS.md, not doing the refactor here. Worth tracking as follow-up. |\n| 4 | MAJOR | Valid | **Fixed** alongside #1 (same scenario). `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` in `discovery.spec.ts` asserts every returned edge references only `primaryConfig.id` or a key of `agentConfigs`. |\n| 5 | MINOR | Valid | **Fixed.** Shallow-clone `primaryConfig.userMCPAuthMap` before merging sub-agent entries so the caller's config is no longer silently mutated. Test added. |\n| 6 | MINOR | Deferred | `responses.js` streaming/non-streaming branches do share a near-identical `toolExecuteOptions.loadTools` closure; extracting it requires hoisting branch-local `tracker`/`artifactPromises`/`toolEndCallback` state. Same scope call as #3. |\n| 7 | NIT | Valid | **Fixed.** `discoveredEdges ?? []` was dead (helper always returns a concrete array). `primaryConfig.edges = discoveredEdges` now. |\n\nAll tests green (16 in `discovery.spec.ts`, 46 across `discovery` + `edges`, 24 across the three controller/service suites). TS check clean.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608989870)\nYep — confirmed and fixed in e0003544a. The reachability pass now filters both `agentConfigs` (unchanged) and the returned `edges` list in the same step, so `A->B->C->D` with B skipped correctly drops `C->D` instead of letting it through to `createRun`. Regression test `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` asserts every returned edge endpoint is either `primaryConfig.id` or a key of `agentConfigs`.\n@codex review\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Respect all sources when expanding multi-source edges**\n\nThe reachability pass in `discoverConnectedAgents` advances an edge when the current node is *any* member of `edge.from` (`sources.includes(current)`), but later the same function keeps edges only when *all* `from` endpoints are reachable. For a graph like `from: ['A','B'], to: 'C'` where `B` has no path from `A`, this marks `C` reachable, prunes `B`, drops the edge, and still returns `C` in `agentConfigs`; `createRun` then flips into multi-agent mode because there are multiple agents, so `C` can run as an unintended root. The expansion step should require all `from` nodes to be reachable before adding destinations.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e0003544a6`\n \n\n

ℹ️ About Codex in GitHub

\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646133888)\nConfirmed and fixed in 4982f1c3b. The BFS `sources.includes(current)` was letting a single reachable source advance through a fan-in edge even when its other sources had no path — then the edge-filter's `every` dropped the edge, stranding the destination in `agentConfigs` as an unintended root. Replaced the BFS with a fixed-point iteration keyed on the same all-sources-reachable predicate as the filter, so traversal and filtering now stay aligned. Two regression tests added: (1) `{from: ['A','B'], to: 'C'}` with B having no incoming path asserts neither B nor C leak into the result; (2) a positive test with `A -> B`, `A -> C`, `['B','C'] -> D` asserts D becomes reachable once both fan-in sources are.\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646382147)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Treat multi-source edges as any-source in reachability pruning**\n\nThe new reachability gate uses `ids.every(...)`, which assumes a multi-source edge only fires when **all** `from` sources are reachable. I checked `node_modules/@librechat/agents/src/graphs/MultiAgentGraph.ts` and that runtime treats `from` arrays as independent sources (it uses `sources.includes(...)` and adds edges per source), i.e. OR semantics. With this change, a valid edge like `{ from: ['A','B'], to: 'C' }` is pruned unless both A and B are reachable, so `C` can be removed even though `A -> C` should still work; this regresses handoff routing for existing multi-source graphs in the API/UI flows.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4982f1c3b0`\n \n\n

ℹ️ About Codex in GitHub

\nRight call — confirmed by reading `agents/src/graphs/MultiAgentGraph.ts`. Both the handoff branch (~L752) and the non-prompt direct branch (~L1107) loop `for (const source of sources) builder.addEdge(source, destination)`, so a multi-source edge is really per-source OR semantics at runtime.\n\nFixed in 6879f4599:\n1. Reachability uses `some` (any source reachable → dest reachable) — matches SDK.\n2. Edge filter: keep edge if at least one source is reachable AND every destination is reachable (a missing destination still crashes `StateGraph.compile`).\n3. Agent prune: keep agents reachable from primary OR referenced on any endpoint of a surviving edge. That second clause preserves co-sources like B in `{from: ['A','B'], to: 'C'}` when B has no incoming path, so the SDK's per-source `addEdge` (and my `validateEdgeAgents` safety-net in #111) still finds B as a node.\n\nPass-7's regression test (the `A -> B -> C -> D` skipped-B case from the external audit) still holds under these semantics because its only surviving candidate edge `C -> D` has no reachable source — it gets filtered, and C/D fall out as neither-reachable-nor-referenced.\n@codex review\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Keep valid routes when filtering multi-source edges**\n\nThis drops an edge whenever *any* `from` source is skipped, which is too aggressive for multi-source edges. In `MultiAgentGraph.createWorkflow`, each source in `from: ['A','B']` is treated as an independent route to the destination, so if only `B` is inaccessible/deleted, the `A -> ...` handoff is still valid. With the current filter, that valid path is removed entirely, so users can lose expected handoffs whenever one co-source is skipped.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `6879f4599c`\n \n\n

ℹ️ About Codex in GitHub

\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646809478)\nConsistent with the pass-8 OR-semantics direction — fixed in 222716d19. `filterOrphanedEdges` now sanitizes each endpoint:\n\n- Scalar skipped → drop the whole edge (no route survives).\n- Array with some skipped → strip the skipped ids, keep the edge with surviving members. If the array empties, drop the edge.\n\nSymmetric for `to`, covering multi-destination fan-out. Tests updated (old `from`-array test asserted the wrong behavior) and added `strips skipped co-destinations…`, `drops multi-member edges only when every member on a side is skipped`, and discovery-side `preserves valid routes when one co-source of a multi-source edge is skipped` which asserts the end-to-end behavior: skipped B gets stripped from `['A','B'] -> C`, A->C survives, C stays in `agentConfigs`.\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24647109386)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Reuse remote-access resolver for handoff permission checks**\n\nThis discovery call checks sub-agents with `PermissionService.checkPermission` on `REMOTE_AGENT`, but the route-level middleware (`createCheckRemoteAgentAccess`) grants remote access via `getRemoteAgentPermissions`, which also treats AGENT owners (SHARE bit) as remotely authorized. In practice, a user can pass the primary model permission check yet have owned handoff agents silently skipped here, breaking multi-agent handoffs on `/v1/chat/completions` (and the same pattern is present in the Responses controller).\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `222716d193`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — confirmed. Fixed in 0de3684be. Both API controllers now build their `checkPermission` wrapper using `getRemoteAgentPermissions` (imported from `@librechat/api`) with `getEffectivePermissions` injected from `PermissionService`, and compare the resulting bitmask against the required permission via `hasPermissions`. That mirrors what `createCheckRemoteAgentAccess` does at the route, so sub-agents owned by the caller (SHARE on AGENT, no explicit REMOTE_AGENT grant) are no longer silently skipped.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24647457636)\nCodex Review: Didn't find any major issues. Nice work!\n\n

ℹ️ About Codex in GitHub

\n@codex review\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve valid multi-start branches during reachability prune**\n\nSeeding reachability with only `primaryConfig.id` causes this helper to drop edge-defined components that are intentionally disconnected from the primary (for example, a valid `B -> C` branch where `B` has no incoming edges). `MultiAgentGraph` treats no-incoming agents as start nodes, so those branches previously executed in parallel, but this filter now removes both their edges and agent configs, changing runtime behavior for existing multi-start graphs in every caller of `discoverConnectedAgents`.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `0de3684be9`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — reconciled with the earlier pass-4 'prune accidental orphans' using pre-filter reachability as the signal. Fixed in 7cc7aedea.\n\n- Agents that were reachable from the primary via the **pre-filter** edges but lose that path after `filterOrphanedEdges` runs are accidental orphans (a skipped hop broke the chain) → prune.\n- Agents that were **never** reachable from the primary, even pre-filter, are intentional parallel starts → seed them into post-filter reachability so their component survives.\n\nNew test `preserves user-defined parallel-start branches disconnected from the primary` covers the `A -> B` + `X -> Y` scenario. The pass-audit `A -> B -> C -> D, B skipped` regression test still passes because C/D were pre-filter reachable through B and lose that reachability post-filter.\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648108824)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Seed only disconnected branch roots after filtering**\n\n`postFilterSeeds` currently adds every initialized agent that was not reachable from the primary in the pre-filter graph. In a graph with a disconnected component like `X -> Y`, if `X` is skipped (missing/no VIEW) but `Y` loads, `Y` is still seeded here, so discovery returns `agents: [primary, Y]` with no connecting edge; `createRun` then treats `Y` as an unintended start node and executes it in parallel. This is a behavior regression in ACL/orphan scenarios and can trigger tool execution for agents that should have been pruned with their skipped upstream.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7cc7aedea0`\n \n\n

ℹ️ About Codex in GitHub

\nGood catch — fixed in 54de02cb6. Tightened the seed criterion from 'not pre-filter reachable from primary' to 'no incoming edge in pre-filter graph'. That catches the Y in `X -> Y` case: Y had an incoming edge pre-filter, so it's a downstream step, not a legitimate parallel start — and when X gets skipped, Y is correctly pruned rather than promoted to a root. Regression test `does not promote a downstream orphan to a parallel start when its only upstream is skipped` added; the pass-11 parallel-start preservation test still passes (X in the user-defined `X -> Y` branch has no incoming pre-filter, so it's still seeded).\n@codex review\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648426265)\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove AGENT-only file filter from remote agent initialization**\n\nPassing `filterFilesByAgentAccess` into `initializeAgent` here makes remote API calls enforce `ResourceType.AGENT` on attached context files (`api/server/services/Files/permissions.js` uses `resourceType: ResourceType.AGENT` at the access check), even though this route authorizes callers with `REMOTE_AGENT` permissions via `getRemoteAgentPermissions`. A user who has `REMOTE_AGENT_VIEWER` but no `AGENT_VIEW` can invoke the shared agent, but all owner-attached context files get filtered out, so tools like `file_search`/context-backed retrieval silently stop working for remote consumers; the same regression is also introduced in `responses.js` with the identical `dbMethods` wiring.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `54de02cb61`\n \n\n

ℹ️ About Codex in GitHub

\nRight — this was a regression I introduced when I refactored the DB-method bundle into a shared `dbMethods` object. Fixed in 6ce34624e: both API controllers now omit `filterFilesByAgentAccess` from `dbMethods` (and drop the now-unused import). The in-app chat `initialize.js` keeps it because that path legitimately authorizes at the AGENT level.\n\nThis restores the pre-refactor API behavior — `primeResources` sees `filterFiles: undefined` and skips the per-file ACL check, so `REMOTE_AGENT_VIEWER`-only callers get the owner-attached context files the route's `getRemoteAgentPermissions` has already decided they can see.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648814572)\nCodex Review: Didn't find any major issues. Swish!\n\n

ℹ️ About Codex in GitHub

\n@codex review\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `6ce34624e8`\n \n\n

ℹ️ About Codex in GitHub

\n**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable co-sources from surviving edges**\n\nWhen an upstream agent is skipped, a multi-source edge can still reference a source that is no longer reachable (for example `A->C`, skipped `X->B`, and `['B','C']->D`). This loop keeps `B` solely because it is still referenced by `edges`, so `createRun` includes `B` even though the reachability pass excluded it. In `MultiAgentGraph.analyzeGraph`, that leaves `B` with no incoming edges and it executes as an unintended parallel start node, which changes workflow behavior after permission/orphan filtering.\n\nUseful? React with 👍 / 👎.\nGood call — fixed in 718b0000b. Instead of keeping unreachable co-sources via the `referencedByEdge` fallback (which then propped B up as an incoming-less parallel root), surviving multi-source edges now get their `from` array sanitized to drop any unreachable co-source. `[B,C] -> D` in the scenario you described becomes `[C] -> D`, every endpoint of every surviving edge is guaranteed to be in `reachable`, and the agent prune collapses to a strict `reachable.has(agentId)` check. Regression test `strips unreachable co-sources from surviving multi-source edges (no stray parallel root)` asserts B is absent from every surviving edge endpoint; all 22 prior discovery tests still pass unchanged.\n### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24649413324)\nCodex Review: Didn't find any major issues. :tada:\n\n

ℹ️ About Codex in GitHub

\n@codex review\nCodex Review: Didn't find any major issues. Another round soon, please!\n\n

ℹ️ About Codex in GitHub

",{},"created",1776662379.10235,"Completing the task","event_type","info",{"_90":344,"_94":91,"_339":504},{"_90":501,"_502":503},"partial_repo_snapshot","files",[],[505],{"_489":45,"_45":346},{"_90":289,"_41":82,"_94":289,"_508":509,"_510":511,"_512":513,"_130":-5,"_117":514},[81],"input_items",[532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617],"external_post_config",{"_515":516,"_227":228,"_517":268,"_239":-5,"_518":222,"_519":-5,"_520":521,"_522":523,"_524":-5,"_525":-5,"_526":527,"_528":15,"_529":57,"_530":52,"_531":15},"user_model_slug","slug",1776662352.437833,"installation_id",115701298,"pr_number","repo_id","review_trigger","comment_id",4278000764,"comment_type","issue","pr_write_guard_token","pending_pr_reaction_id","pending_comment_reaction_id",348643806,"comment_if_no_findings","comment_on_error","share_url","is_parallel_review",{"_90":344,"_94":289,"_339":706},{"_275":276,"_277":278,"_703":283,"_704":127,"_285":-5,"_90":705},{"_90":618,"_277":701,"_155":626,"_620":627,"_621":702},{"_90":618,"_277":700,"_155":634,"_620":627,"_621":-5},{"_90":618,"_277":698,"_155":699,"_620":627,"_621":-5},{"_90":618,"_277":697,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":696,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":695,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":694,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":693,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":692,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":691,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":690,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":689,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":688,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":687,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":686,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":685,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":684,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":683,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":682,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":681,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":680,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":679,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":678,"_155":675,"_620":627,"_621":-5},{"_90":618,"_277":677,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":676,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":674,"_155":675,"_620":627,"_621":-5},{"_90":618,"_277":673,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":672,"_155":626,"_620":627,"_621":667},{"_90":618,"_277":671,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":670,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":669,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":668,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":666,"_155":626,"_620":627,"_621":667},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":665,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":664,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":663,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":662,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":661,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":660,"_155":626,"_620":627,"_621":658},{"_90":618,"_277":659,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":657,"_155":626,"_620":627,"_621":658},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":656,"_155":653,"_620":627,"_621":-5},{"_90":618,"_277":655,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":654,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":652,"_155":653,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":651,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":650,"_155":634,"_620":627,"_621":-5},{"_90":618,"_277":649,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":648,"_155":634,"_620":627,"_621":-5},{"_90":618,"_277":647,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":646,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":645,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":644,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":643,"_155":626,"_620":627,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":642,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":641,"_155":626,"_620":627,"_621":639},{"_90":618,"_277":640,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":638,"_155":626,"_620":627,"_621":639},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":637,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":636,"_155":634,"_620":627,"_621":-5},{"_90":618,"_277":635,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":633,"_155":634,"_620":627,"_621":-5},{"_90":618,"_277":632,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":631,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":630,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":629,"_155":626,"_620":627,"_621":628},{"_90":618,"_277":625,"_155":626,"_620":627,"_621":628},{"_90":618,"_277":624,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":623,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":622,"_155":-5,"_620":-5,"_621":-5},{"_90":618,"_277":619,"_155":-5,"_620":-5,"_621":-5},"pull_request_comment","Codex Review: Didn't find any major issues. Another round soon, please!\n\n

ℹ️ About Codex in GitHub

","side","line","@codex review","Codex Review: Didn't find any major issues. :tada:\n\n

ℹ️ About Codex in GitHub

","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24649413324)","Good call — fixed in 718b0000b. Instead of keeping unreachable co-sources via the `referencedByEdge` fallback (which then propped B up as an incoming-less parallel root), surviving multi-source edges now get their `from` array sanitized to drop any unreachable co-source. `[B,C] -> D` in the scenario you described becomes `[C] -> D`, every endpoint of every surviving edge is guaranteed to be in `reachable`, and the agent prune collapses to a strict `reachable.has(agentId)` check. Regression test `strips unreachable co-sources from surviving multi-source edges (no stray parallel root)` asserts B is absent from every surviving edge endpoint; all 22 prior discovery tests still pass unchanged.","packages/api/src/agents/discovery.ts","RIGHT",440,"**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable co-sources from surviving edges**\n\nWhen an upstream agent is skipped, a multi-source edge can still reference a source that is no longer reachable (for example `A->C`, skipped `X->B`, and `['B','C']->D`). This loop keeps `B` solely because it is still referenced by `edges`, so `createRun` includes `B` even though the reachability pass excluded it. In `MultiAgentGraph.analyzeGraph`, that leaves `B` with no incoming edges and it executes as an unintended parallel start node, which changes workflow behavior after permission/orphan filtering.\n\nUseful? React with 👍 / 👎.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `6ce34624e8`\n \n\n

ℹ️ About Codex in GitHub

","Codex Review: Didn't find any major issues. Swish!\n\n

ℹ️ About Codex in GitHub

","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648814572)","Right — this was a regression I introduced when I refactored the DB-method bundle into a shared `dbMethods` object. Fixed in 6ce34624e: both API controllers now omit `filterFilesByAgentAccess` from `dbMethods` (and drop the now-unused import). The in-app chat `initialize.js` keeps it because that path legitimately authorizes at the AGENT level.\n\nThis restores the pre-refactor API behavior — `primeResources` sees `filterFiles: undefined` and skips the per-file ACL check, so `REMOTE_AGENT_VIEWER`-only callers get the owner-attached context files the route's `getRemoteAgentPermissions` has already decided they can see.","api/server/controllers/agents/openai.js","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `54de02cb61`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove AGENT-only file filter from remote agent initialization**\n\nPassing `filterFilesByAgentAccess` into `initializeAgent` here makes remote API calls enforce `ResourceType.AGENT` on attached context files (`api/server/services/Files/permissions.js` uses `resourceType: ResourceType.AGENT` at the access check), even though this route authorizes callers with `REMOTE_AGENT` permissions via `getRemoteAgentPermissions`. A user who has `REMOTE_AGENT_VIEWER` but no `AGENT_VIEW` can invoke the shared agent, but all owner-attached context files get filtered out, so tools like `file_search`/context-backed retrieval silently stop working for remote consumers; the same regression is also introduced in `responses.js` with the identical `dbMethods` wiring.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648426265)","Good catch — fixed in 54de02cb6. Tightened the seed criterion from 'not pre-filter reachable from primary' to 'no incoming edge in pre-filter graph'. That catches the Y in `X -> Y` case: Y had an incoming edge pre-filter, so it's a downstream step, not a legitimate parallel start — and when X gets skipped, Y is correctly pruned rather than promoted to a root. Regression test `does not promote a downstream orphan to a parallel start when its only upstream is skipped` added; the pass-11 parallel-start preservation test still passes (X in the user-defined `X -> Y` branch has no incoming pre-filter, so it's still seeded).",397,"\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7cc7aedea0`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Seed only disconnected branch roots after filtering**\n\n`postFilterSeeds` currently adds every initialized agent that was not reachable from the primary in the pre-filter graph. In a graph with a disconnected component like `X -> Y`, if `X` is skipped (missing/no VIEW) but `Y` loads, `Y` is still seeded here, so discovery returns `agents: [primary, Y]` with no connecting edge; `createRun` then treats `Y` as an unintended start node and executes it in parallel. This is a behavior regression in ACL/orphan scenarios and can trigger tool execution for agents that should have been pruned with their skipped upstream.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24648108824)","Good catch — reconciled with the earlier pass-4 'prune accidental orphans' using pre-filter reachability as the signal. Fixed in 7cc7aedea.\n\n- Agents that were reachable from the primary via the **pre-filter** edges but lose that path after `filterOrphanedEdges` runs are accidental orphans (a skipped hop broke the chain) → prune.\n- Agents that were **never** reachable from the primary, even pre-filter, are intentional parallel starts → seed them into post-filter reachability so their component survives.\n\nNew test `preserves user-defined parallel-start branches disconnected from the primary` covers the `A -> B` + `X -> Y` scenario. The pass-audit `A -> B -> C -> D, B skipped` regression test still passes because C/D were pre-filter reachable through B and lose that reachability post-filter.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `0de3684be9`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve valid multi-start branches during reachability prune**\n\nSeeding reachability with only `primaryConfig.id` causes this helper to drop edge-defined components that are intentionally disconnected from the primary (for example, a valid `B -> C` branch where `B` has no incoming edges). `MultiAgentGraph` treats no-incoming agents as start nodes, so those branches previously executed in parallel, but this filter now removes both their edges and agent configs, changing runtime behavior for existing multi-start graphs in every caller of `discoverConnectedAgents`.\n\nUseful? React with 👍 / 👎.","Codex Review: Didn't find any major issues. Nice work!\n\n

ℹ️ About Codex in GitHub

","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24647457636)","Good catch — confirmed. Fixed in 0de3684be. Both API controllers now build their `checkPermission` wrapper using `getRemoteAgentPermissions` (imported from `@librechat/api`) with `getEffectivePermissions` injected from `PermissionService`, and compare the resulting bitmask against the required permission via `hasPermissions`. That mirrors what `createCheckRemoteAgentAccess` does at the route, so sub-agents owned by the caller (SHARE on AGENT, no explicit REMOTE_AGENT grant) are no longer silently skipped.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `222716d193`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Reuse remote-access resolver for handoff permission checks**\n\nThis discovery call checks sub-agents with `PermissionService.checkPermission` on `REMOTE_AGENT`, but the route-level middleware (`createCheckRemoteAgentAccess`) grants remote access via `getRemoteAgentPermissions`, which also treats AGENT owners (SHARE bit) as remotely authorized. In practice, a user can pass the primary model permission check yet have owned handoff agents silently skipped here, breaking multi-agent handoffs on `/v1/chat/completions` (and the same pattern is present in the Responses controller).\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24647109386)","Consistent with the pass-8 OR-semantics direction — fixed in 222716d19. `filterOrphanedEdges` now sanitizes each endpoint:\n\n- Scalar skipped → drop the whole edge (no route survives).\n- Array with some skipped → strip the skipped ids, keep the edge with surviving members. If the array empties, drop the edge.\n\nSymmetric for `to`, covering multi-destination fan-out. Tests updated (old `from`-array test asserted the wrong behavior) and added `strips skipped co-destinations…`, `drops multi-member edges only when every member on a side is skipped`, and discovery-side `preserves valid routes when one co-source of a multi-source edge is skipped` which asserts the end-to-end behavior: skipped B gets stripped from `['A','B'] -> C`, A->C survives, C stays in `agentConfigs`.","packages/api/src/agents/edges.ts","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646809478)","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `6879f4599c`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Keep valid routes when filtering multi-source edges**\n\nThis drops an edge whenever *any* `from` source is skipped, which is too aggressive for multi-source edges. In `MultiAgentGraph.createWorkflow`, each source in `from: ['A','B']` is treated as an independent route to the destination, so if only `B` is inaccessible/deleted, the `A -> ...` handoff is still valid. With the current filter, that valid path is removed entirely, so users can lose expected handoffs whenever one co-source is skipped.\n\nUseful? React with 👍 / 👎.","Right call — confirmed by reading `agents/src/graphs/MultiAgentGraph.ts`. Both the handoff branch (~L752) and the non-prompt direct branch (~L1107) loop `for (const source of sources) builder.addEdge(source, destination)`, so a multi-source edge is really per-source OR semantics at runtime.\n\nFixed in 6879f4599:\n1. Reachability uses `some` (any source reachable → dest reachable) — matches SDK.\n2. Edge filter: keep edge if at least one source is reachable AND every destination is reachable (a missing destination still crashes `StateGraph.compile`).\n3. Agent prune: keep agents reachable from primary OR referenced on any endpoint of a surviving edge. That second clause preserves co-sources like B in `{from: ['A','B'], to: 'C'}` when B has no incoming path, so the SDK's per-source `addEdge` (and my `validateEdgeAgents` safety-net in #111) still finds B as a node.\n\nPass-7's regression test (the `A -> B -> C -> D` skipped-B case from the external audit) still holds under these semantics because its only surviving candidate edge `C -> D` has no reachable source — it gets filtered, and C/D fall out as neither-reachable-nor-referenced.",351,"\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4982f1c3b0`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Treat multi-source edges as any-source in reachability pruning**\n\nThe new reachability gate uses `ids.every(...)`, which assumes a multi-source edge only fires when **all** `from` sources are reachable. I checked `node_modules/@librechat/agents/src/graphs/MultiAgentGraph.ts` and that runtime treats `from` arrays as independent sources (it uses `sources.includes(...)` and adds edges per source), i.e. OR semantics. With this change, a valid edge like `{ from: ['A','B'], to: 'C' }` is pruned unless both A and B are reachable, so `C` can be removed even though `A -> C` should still work; this regresses handoff routing for existing multi-source graphs in the API/UI flows.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646382147)","Confirmed and fixed in 4982f1c3b. The BFS `sources.includes(current)` was letting a single reachable source advance through a fan-in edge even when its other sources had no path — then the edge-filter's `every` dropped the edge, stranding the destination in `agentConfigs` as an unintended root. Replaced the BFS with a fixed-point iteration keyed on the same all-sources-reachable predicate as the filter, so traversal and filtering now stay aligned. Two regression tests added: (1) `{from: ['A','B'], to: 'C'}` with B having no incoming path asserts neither B nor C leak into the result; (2) a positive test with `A -> B`, `A -> C`, `['B','C'] -> D` asserts D becomes reachable once both fan-in sources are.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24646133888)","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e0003544a6`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Respect all sources when expanding multi-source edges**\n\nThe reachability pass in `discoverConnectedAgents` advances an edge when the current node is *any* member of `edge.from` (`sources.includes(current)`), but later the same function keeps edges only when *all* `from` endpoints are reachable. For a graph like `from: ['A','B'], to: 'C'` where `B` has no path from `A`, this marks `C` reachable, prunes `B`, drops the edge, and still returns `C` in `agentConfigs`; `createRun` then flips into multi-agent mode because there are multiple agents, so `C` can run as an unintended root. The expansion step should require all `from` nodes to be reachable before adding destinations.\n\nUseful? React with 👍 / 👎.","Yep — confirmed and fixed in e0003544a. The reachability pass now filters both `agentConfigs` (unchanged) and the returned `edges` list in the same step, so `A->B->C->D` with B skipped correctly drops `C->D` instead of letting it through to `createRun`. Regression test `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` asserts every returned edge endpoint is either `primaryConfig.id` or a key of `agentConfigs`.",441,"### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608989870)","External audit follow-up — landed in e0003544a. Summary of findings:\n\n| # | Severity | Verdict | Resolution |\n|---|----------|---------|------------|\n| 1 | CRITICAL | Valid | **Fixed.** `A -> B -> C -> D` with B skipped — `filterOrphanedEdges` left `C->D` behind, the reachability prune dropped C/D from `agentConfigs` but not from the returned edges, and `createRun` crashed on the mismatch. Now the reachability pass prunes both the config map and the edge list in one pass so the returned shape is self-consistent. Regression test added. |\n| 2 | MAJOR | Valid | **Fixed.** `getModelsConfig` + `discoverConnectedAgents` now only run when `primaryConfig.edges?.length > 0`. Single-agent API calls (the common case) bypass both. |\n| 3 | MAJOR | Deferred | Real duplication across the three call sites. Bug-fix PR scope — per AGENTS.md, not doing the refactor here. Worth tracking as follow-up. |\n| 4 | MAJOR | Valid | **Fixed** alongside #1 (same scenario). `prunes surviving-but-unreachable edges from the return value (A->B->C->D, B skipped)` in `discovery.spec.ts` asserts every returned edge references only `primaryConfig.id` or a key of `agentConfigs`. |\n| 5 | MINOR | Valid | **Fixed.** Shallow-clone `primaryConfig.userMCPAuthMap` before merging sub-agent entries so the caller's config is no longer silently mutated. Test added. |\n| 6 | MINOR | Deferred | `responses.js` streaming/non-streaming branches do share a near-identical `toolExecuteOptions.loadTools` closure; extracting it requires hoisting branch-local `tracker`/`artifactPromises`/`toolEndCallback` state. Same scope call as #3. |\n| 7 | NIT | Valid | **Fixed.** `discoveredEdges ?? []` was dead (helper always returns a concrete array). `primaryConfig.edges = discoveredEdges` now. |\n\nAll tests green (16 in `discovery.spec.ts`, 46 across `discovery` + `edges`, 24 across the three controller/service suites). TS check clean.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608658217)","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e54440b7d1`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune unreachable edges before returning discovery result**\n\nAfter computing `reachable`, this function deletes disconnected agent configs but still returns the original `edges` array unchanged. In graphs where a skipped intermediate node disconnects a downstream subgraph (for example `A->B->C` with `B` skipped and `C` having `C->D`), `agentConfigs` drops `C/D` but `edges` can still contain `C->D`, so `createRun` receives edges that reference agents not present in `agents` and can fail multi-agent graph compilation with unknown-node errors. The returned edges should be filtered to only include endpoints in the reachable set.\n\nUseful? React with 👍 / 👎.","Hit the 5-round cap on codex review iterations. Summary of landed fixes from this review loop (all codex P1 findings, all validated as real bugs):\n\n| Pass | Commit | Fix |\n| --- | --- | --- |\n| 1 | 7418dd83b | `filterOrphanedEdges` now drops edges where either `from` or `to` references a skipped agent — previously only `to` was checked, leaking `B -> A` through on a bidirectional graph where `B` was skipped. |\n| 2 | e491a23a7 | API routes now pass `ResourceType.REMOTE_AGENT` to `discoverConnectedAgents` — previously sub-agents were authorized against the looser `AGENT` resource, letting a caller bypass the remote-sharing boundary for handoff targets. |\n| 3 | 7ec1ba246 | Sub-agent init now forces `endpointOption.endpoint = EModelEndpoint.agents` so `initializeAgent`'s `isAgentsEndpoint`-gated `allowedProviders` guard always fires — previously the OpenAI-compat routes passed the primary's provider as the endpoint, bypassing the provider allowlist. |\n| 4 | 4cbfffc9e | After `filterOrphanedEdges`, agents unreachable from the primary via surviving edges are pruned from `agentConfigs` — previously a stranded `C` in `A -> B -> C` (with `B` skipped) survived as a stray parallel start node. |\n| 5 | e54440b7d | `initialize.js` no longer seeds the outer `agentConfigs` from the pre-pruning BFS callback — now copies directly from the helper's pruned result, so the pass-4 fix actually lands on the in-app chat path too. |\n\nCI is green. Happy to run another pass if anything here looks wrong, but otherwise this is ready.","Good catch — this was the missing reconciliation in `initialize.js` after the pass-4 prune. Fixed in e54440b7d: the callback no longer writes `agentConfigs` (it fires during BFS, before the helper knows which agents will end up disconnected), and the outer merge step now copies directly from the pruned `discoveredConfigs` — so stranded sub-agents like `C` in `A->B->C` with B skipped are no longer handed to `AgentClient`. The API controllers (openai.js / responses.js) were already using the helper's returned map directly, so they were unaffected.","api/server/services/Endpoints/agents/initialize.js","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608464578)","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4cbfffc9ee`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Drop pruned agents from initializeClient run list**\n\n`discoverConnectedAgents` now prunes sub-agents that become unreachable after edge filtering, but this callback writes every initialized sub-agent into `agentConfigs` before that pruning happens, and the later merge step only adds entries (never removes stale ones). In a graph like `A->B` and `B->C` where `B` is skipped (missing/no access), `C` is pruned from the helper result but still remains in `agentConfigs`, so `AgentClient` passes `[A, C]` to `createRun` and `C` can execute as an unintended parallel start node.\n\nUseful? React with 👍 / 👎.","Good catch — confirmed. In an `A -> B -> C` graph (with B's edges stored directly on A), B being skipped stranded C as an initialized-but-disconnected agent, which `createRun` was then turning into a stray parallel start. Fixed in 4cbfffc9e: after `filterOrphanedEdges`, compute the reachability closure from the primary through surviving edges and prune `agentConfigs` to that set. Two regression tests added — one for the pruning case, one that verifies agents on surviving paths are kept.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7ec1ba246f`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Prune disconnected sub-agents after orphan edge filtering**\n\nAfter `filterOrphanedEdges` removes edges that referenced skipped agents, `discoverConnectedAgents` still returns every initialized sub-agent in `agentConfigs`. In a graph like `A -> B -> C`, if `B` is skipped (missing or no VIEW), `C` is still initialized from the original edge scan, both edges are then removed, and callers pass `C` into `createRun` as an extra agent; because `createRun` switches to multi-agent mode when `agents.length > 1`, `C` can run as an unintended parallel start node even though no surviving edge connects it to `A`. This should prune `agentConfigs` to agents that remain reachable from the primary through the filtered edge set.\n\nUseful? React with 👍 / 👎.","Codex Review: Didn't find any major issues. :rocket:\n\n

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","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24608090414)","Good catch — confirmed. The OpenAI-compat routes build `endpointOption` with `endpoint: agent.provider` (e.g. `openai`), so the `isAgentsEndpoint`-gated `allowedProviders` guard in `initializeAgent` was being skipped for discovered sub-agents. Fixed in 7ec1ba246: the helper now overrides `endpoint` to `EModelEndpoint.agents` on every per-sub-agent init call so the allowlist is always enforced for handoff targets, regardless of the caller's entry endpoint. Test added.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e491a23a77`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce provider allowlist when initializing handoff agents**\n\n`discoverConnectedAgents` forwards `endpointOption` directly into `initializeAgent`, but on the OpenAI-compatible routes this option uses the primary provider endpoint (for example `openai`), not the agents endpoint. Because `initializeAgent` only checks `allowedProviders` when `isAgentsEndpoint(endpointOption.endpoint)` is true, discovered sub-agents bypass the configured provider allowlist and can run disallowed providers via handoff edges.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607836037)","Good catch — confirmed the API routes gate on `REMOTE_AGENT` while discovery was only checking `AGENT`. Fixed in e491a23a7: added a `resourceType` param to `discoverConnectedAgents` (defaults to `AGENT` for the in-app chat path) and both API controllers now pass `ResourceType.REMOTE_AGENT` so every discovered sub-agent clears the same sharing boundary the route enforces. Test added in `discovery.spec.ts`.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `7418dd83b5`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Enforce REMOTE_AGENT ACL when loading handoff sub-agents**\n\n`discoverConnectedAgents` authorizes discovered handoff agents with `ResourceType.AGENT`, but the OpenAI-compatible routes are explicitly protected by remote-agent permissions (`createCheckRemoteAgentAccess` / `REMOTE_AGENT`). This lets a caller who can access the orchestrator remotely and has regular AGENT visibility (but not REMOTE_AGENT visibility) execute an unshared sub-agent through `/v1/chat/completions` or `/v1/responses`, bypassing remote-sharing boundaries for sub-agents. The permission check here should be endpoint-aware (or use `REMOTE_AGENT` for these controllers) to preserve the same ACL model as route entry.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607630810)","Good catch — valid P1. Fixed in 7418dd83b by widening `filterOrphanedEdges` to drop edges where either `from` OR `to` references a skipped id. Added a bidirectional-graph regression test in `discovery.spec.ts` plus updated the `to`-only cases in `edges.spec.ts`.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607435817)","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `e9e435b796`\n \n\n

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","**_{_{![P1 Badge](https://img.shields.io/badge/P1-orange?style=flat)}} Remove edges that reference skipped agents as sources**\n\nAfter discovering sub-agents, this path only applies `filterOrphanedEdges` before returning `edges`, and that helper drops skipped IDs from `to` only. If a skipped/deleted/inaccessible sub-agent appears on the `from` side (for example, a bidirectional graph has `A -> B` and `B -> A`, and `B` is skipped), `B -> A` is still passed to `createRun`, which leaves an edge that references an agent not present in `agents` and can still fail graph compilation instead of gracefully skipping. The returned edge list should remove skipped IDs from both endpoints.\n\nUseful? React with 👍 / 👎.","### GitNexus: 🚀 deployed\n\nThe `LibreChat-pr-12740` index is now live on the MCP server.\n[Deploy run](https://github.com/danny-avila/LibreChat/actions/runs/24607319818)","## Pull request overview\n\nFixes multi-agent handoff failures on the OpenAI-compatible `/v1/chat/completions` and Open Responses `/v1/responses` endpoints by ensuring all edge-referenced sub-agents are discovered, ACL-checked, initialized, and included in the `createRun()` agent list (matching the UI initialize flow).\n\n**Changes:**\n- Introduces a shared BFS-based `discoverConnectedAgents` helper to load reachable sub-agents, merge MCP auth, and filter orphaned edges.\n- Updates OpenAI-compat and Responses controllers to use discovered `[primary, ...subAgents]` and to route tool execution via per-agent tool contexts.\n- Refactors the UI `initializeClient` flow to reuse the shared helper and updates unit tests/mocks accordingly.\n\n### Reviewed changes\n\nCopilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.\n\n

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\n\n\n\n\n\n\n---\n\n💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.","`getModelsConfig(req)` (default+config model load) can add significant overhead and potential upstream calls on cache misses. Here it runs unconditionally, even when there are no primary edges/agent_ids and thus no handoff discovery to perform. Consider skipping modelsConfig loading and `discoverConnectedAgents` entirely unless the primary agent actually has edges/agent_ids.","api/server/controllers/agents/responses.js","`getModelsConfig(req)` can be expensive (it loads default+config models and may call upstream providers on cache miss). In this controller it runs on every request even when the primary agent has no edges/agent_ids (i.e., no discovery needed). Consider gating the modelsConfig load + `discoverConnectedAgents` call behind a cheap check like `(primaryConfig.edges?.length ?? 0) > 0 || (primaryConfig.agent_ids?.length ?? 0) > 0` to avoid extra latency and upstream calls for single-agent runs.","`createSequentialChainEdges([primaryConfig.id, ...agent_ids])` can generate direct edges where the `from` agent was skipped (missing/forbidden/validation error). Since `filterOrphanedEdges` only filters by `to`, an edge like `C -> D` can remain even if `C` was skipped, which can still break graph compilation due to an unknown start node. Consider building chain edges only from the successfully initialized chain IDs (preserving order but compressing out skipped IDs), or additionally filtering chain edges where `from` is in `skippedAgentIds`.",291,"base_ref","head_ref","pull_request_info",[707],{"_489":45,"_45":708},"Codex has converged — two consecutive `@codex review` requests on the current tip (718b0000b) cleared without surfacing new findings. All CI green. Final tally of landed fixes from the review loop:\n\n### Initial bug fix\n- **e9e435b79** — Main fix: shared `discoverConnectedAgents` helper + wired into both OpenAI-compat controllers.\n- **5cc74e387** — CI TypeScript check on the test helper type.\n\n### Codex passes 1–6 (initial six iterations)\n| Pass | Commit | Severity | Fix |\n|---|---|---|---|\n| 1 | 7418dd83b | P1 | `filterOrphanedEdges` drops edges whose `from` endpoint is skipped (not just `to`). |\n| 2 | e491a23a7 | P1 | API routes pass `ResourceType.REMOTE_AGENT` so sub-agents honor the remote-sharing boundary. |\n| 3 | 7ec1ba246 | P1 | Sub-agents init with `endpoint: agents` so `allowedProviders` always enforces. |\n| 4 | 4cbfffc9e | P1 | Prune agents unreachable via surviving edges so stranded sub-agents don't become stray roots. |\n| 5 | e54440b7d | P1 | `initialize.js` copies `agentConfigs` from the pruned helper result instead of via the pre-pruning callback. |\n| 6 | e0003544a | P1 | Reachability-based edge prune also filters the returned `edges` list (caught by external audit + codex). |\n\n### External audit follow-up\n- **e0003544a** — Findings 1/2/4/5/7: filter stale edges, gate `getModelsConfig` behind `edges?.length`, clone `userMCPAuthMap`, drop dead `?? []`.\n- **6450aa875** — Audit NITs: clone in the else branch for symmetry, drop dead `!edges` guard in `initialize.js`.\n\n### Codex passes 7–14 (second wave)\n| Pass | Commit | Severity | Fix |\n|---|---|---|---|\n| 7 | 4982f1c3b | P1 | (superseded by pass-8) Initial attempt at fan-in reachability. |\n| 8 | 6879f4599 | P1 | SDK treats multi-source edges as per-source `addEdge` (OR) — reverted pass-7 to match. |\n| 9 | 222716d19 | P2 | `filterOrphanedEdges` strips skipped co-members from arrays instead of dropping whole edges. |\n| 10 | 0de3684be | P1 | API controllers use `getRemoteAgentPermissions` so AGENT owners (SHARE bit) aren't silently skipped. |\n| 11 | 7cc7aedea | P2 | Preserve user-defined parallel-start branches disconnected from the primary. |\n| 12 | 54de02cb6 | P1 | Tighten parallel-start seed to \"no incoming edge in pre-filter graph\" — downstream orphans don't get promoted. |\n| 13 | 6ce34624e | P1 | Remove `filterFilesByAgentAccess` from API `dbMethods` (AGENT ACL → REMOTE_AGENT ACL regression). |\n| 14 | 718b0000b | P1 | Sanitize unreachable co-sources from surviving multi-source edges (no stray parallel roots). |\n\n### Tests\n- **23 discovery tests** covering every scenario codex raised.\n- **30 edges tests** covering the sanitized orphan filter.\n- **24 controller/service tests** passing for openai, responses, initialize.\n- Every CI job green.\n\nThe companion agents-SDK change ([danny-avila/agents#111](https://github.com/danny-avila/agents/pull/111)) was clean from codex in a single pass and remains 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