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* 🌱 fix: Seed Code Tool Files Into Graph Sessions on First Call
Files attached to an agent's `tool_resources.execute_code` (user uploads
or generated artifacts from a prior turn) were silently dropped on the
first `execute_code` invocation of a turn. The agents-side `ToolNode`
populates `_injected_files` only when its `sessions` map already has an
`EXECUTE_CODE` entry — but that entry is only written by a previous
successful execution, so call #1 had nothing to inject. CodeExecutor
then fell back to a `/files/{session_id}` fetch, but `session_id` was
also empty on call #1, leaving the sandbox without the primed files.
Mirror the existing skill-priming pattern (`primeInvokedSkills` →
`initialSessions`) for code-resource files: eagerly call `primeFiles`
before `createRun` and merge the result into `initialSessions` via a
new `seedCodeFilesIntoSessions` helper. Skill files and code-resource
files now share the same `EXECUTE_CODE` entry; the prior representative
`session_id` is preserved on merge.
* 🔬 chore: Add Diagnostic Logging for Code-Files Seeding
Temporary debug logs to diagnose why first-call file injection is not
firing in real agent runs. Logs `wantsCodeExec`, available tool-resource
keys, primed file count, and the seeded EXECUTE_CODE entry. Will revert
once the failure mode is identified.
* 🪛 refactor: Capture primedCodeFiles per-agent at init, merge across run
Replace the client.js eager `primeFiles` call with a per-agent capture at
initialization time so every agent in a multi-agent run (primary +
handoff + addedConvo) contributes its `tool_resources.execute_code`
files to the shared `Graph.sessions` seed.
- handleTools.js (eager loadTools): the `execute_code` factory closes
over a `primedCodeFiles` slot and surfaces it in the return.
- ToolService.js loadToolDefinitionsWrapper (event-driven): captures
`files` from the existing `primeCodeFiles` call (was dropping them
while only keeping `toolContext`) and surfaces them.
- packages/api initialize.ts: the loadTools callback contract now
includes `primedCodeFiles`, threaded onto `InitializedAgent`.
- client.js: iterate `[primary, ...agentConfigs.values()]` and merge
each agent's `primedCodeFiles` into `initialSessions`. Drop the
primary-only `primeCodeFiles` call and diagnostic logs from the prior
attempt — wrong layer (single-agent), wrong gate (`agent.tools`
contained Tool instances after init, so the `.includes("execute_code")`
string check always failed).
* 🔬 chore: Add per-agent diagnostic logs for code-files seeding
Logs `tool_resources` keys + file counts inside loadToolDefinitionsWrapper
and per-agent `primedCodeFiles` + final initialSessions inside
AgentClient. Will revert once the failure mode is confirmed.
* 🔬 chore: Add file-lookup diagnostics inside initializeAgent
Logs the inputs and intermediate counts of the conversation-file lookup
chain (convo file ids, thread message ids, code-generated and
user-code file counts) so we can pinpoint why `tool_resources.execute_code`
is arriving empty at `loadToolDefinitionsWrapper` despite the agent
having `execute_code` in its tools list.
* 🔬 chore: Probe execute_code files without messageId filter
Adds a relaxed `getFiles({conversationId, context: execute_code})` probe
that runs only when `getCodeGeneratedFiles` returns empty. Lists what's
actually in the DB for this conversation so we can confirm whether the
file is missing entirely or whether the messageId filter is rejecting it.
* 🔬 chore: Fix probe getFiles arg order (sort vs projection)
Probe was passing a projection object as the sort arg, which mongoose
rejected with `Invalid sort value`. Move it to the third arg
(selectFields) so the probe actually runs.
* 🪢 fix: Preserve Original messageId on Code-Output File Update
Each `processCodeOutput` call was overwriting the persisted file's
`messageId` with the *current* run's id. When a turn re-creates an
existing file (filename + conversationId match → `claimCodeFile`
returns the existing record, `isUpdate=true`), the file's link to
the assistant message that originally produced it gets clobbered.
`initializeAgent` later runs `getCodeGeneratedFiles({messageId: $in: <thread>})`
to seed `tool_resources.execute_code` from prior-turn artifacts. With a
stale `messageId` (e.g. from a failed read attempt that re-shelled the
same filename), the file no longer matches the parent-walk thread, so
`tool_resources` arrives empty at agent init, the new
`primedCodeFiles` channel has nothing to seed, and the LLM can't see
its own prior-turn artifacts on the next turn — defeating the
just-added Graph-sessions seeding fix.
Preserve the existing `claimed.messageId` on update; first-creation
behavior is unchanged. The runtime return value still includes the
current run's `messageId` (via `Object.assign(file, { messageId })`)
so the artifact is correctly attributed to the live tool_call.
* 🧹 chore: Remove diagnostic logs from code-files seeding path
Drops the temporary debug logs added to trace the empty-tool_resources
failure mode. Production code paths (loadToolDefinitionsWrapper,
client.js seed loop, initializeAgent file lookup) are left as the
permanent shape: capture primedCodeFiles, merge across agents, seed
initialSessions before run start.
* 🪛 feat: read_file Sandbox Fallback for /mnt/data + Non-Skill Paths
When the model called `read_file` with a code-execution path (e.g.
`/mnt/data/sentinel.txt`), the handler returned a misleading
`Use format: {skillName}/{path}` error. Adds a sandbox-aware fallback:
- Short-circuit `/mnt/data/...` (can never be a skill reference) →
route to a sandbox `cat` via the new host-provided `readSandboxFile`
callback, which POSTs to the codeapi `/exec` endpoint.
- Skip the skill resolver entirely when `accessibleSkillIds` is empty
— the resolved-output of `resolveAgentScopedSkillIds` already
collapses the admin capability + ephemeral badge + persisted
`skills_enabled` chain, so an empty value is the authoritative
"skills aren't in scope for this agent" signal.
- For `{firstSegment}/...` paths, consult the catalog-derived
`activeSkillNames` Set (no DB read) to detect non-skill names and
fall through to the sandbox before the model has to retry with
`bash_tool`.
`activeSkillNames` is captured from `injectSkillCatalog`, threaded onto
`InitializedAgent`, into `agentToolContexts`, then through
`enrichWithSkillConfigurable` into `mergedConfigurable` for the handler.
The host implementation of `readSandboxFile` lives in
`api/server/services/Files/Code/process.js` and shells `cat <path>`
through the seeded sandbox session — `tc.codeSessionContext`
(emitted by ToolNode for `read_file` calls in `@librechat/agents`
v3.1.72+) provides the `session_id` + `_injected_files` so the read
lands in the same sandbox that holds prior-turn artifacts. When the
seeded context isn't available (older agents version, no codeapi
configured), the handler returns a model-visible error pointing at
`bash_tool` instead of silently failing.
Tests: 8 new `handleReadFileCall` cases cover the new short-circuits,
the skills-not-enabled gate, the activeSkillNames lookup, the
sandbox-fallback success path, and the bash_tool retry hint on
fallback failure. Existing `read_file` tests now opt into "skills are
in scope" via a `skillsInScope()` fixture (production wouldn't reach
the skill lookup with empty `accessibleSkillIds`).
* 🔧 chore: Update @librechat/agents dependency to version 3.1.72
Bumps the version of the @librechat/agents package across package-lock.json and relevant package.json files to ensure compatibility with the latest features and fixes.
* 🪛 refactor: Centralize Tool-Session Seed in buildInitialToolSessions Helper
Addresses review feedback on the per-agent merge in client.js:
- **Run-wide semantics, named explicitly.** The merge into a single
`Graph.sessions[EXECUTE_CODE]` was a deliberate match to the
agents-library design (`Graph.sessions` is shared across every
`ToolNode` in the run), but the inline `for (const a of agents)`
loop in `AgentClient.chatCompletion` made it look per-agent. Move
the logic to a TS helper `buildInitialToolSessions` that documents
the run-wide-by-design contract in one place. The CJS controller
now contains a single call site, no business logic.
- **Subagent walk (P2).** The previous loop only iterated
`[primary, ...agentConfigs.values()]`. Pure subagents are pruned
out of `agentConfigs` after init and retained on each parent's
`subagentAgentConfigs`, so their primed code files were silently
dropped from the seed. The helper now walks recursively, with a
visited-Set keyed on object identity that terminates safely on a
malformed agent graph (cycle).
- **`jest.setup.cjs` polyfill for undici `File`.** Reviewer hit
`ReferenceError: File is not defined` running the targeted spec on
WSL — a known Node 18 issue where `globalThis.File` from
`node:buffer` isn't auto-exposed. Polyfill it inside a Jest setup
file so the suite boots regardless of Node patch version.
Helper test coverage (8 new): skill-only / agent-only / both,
recursive subagent walk, cycle-safe walk, primary+subagent
deduplication, undefined/null entries in the agents iterable, and
representative session_id preservation across the merge.
16 tests pass total in `codeFilesSession.spec.ts` (8 prior + 8 new).
No behavior change vs. the previous commit for the existing
primary+agentConfigs case — subagent inclusion is the only new
behavior, and it matches what the existing seeding logic would have
done if subagents had been in `agentConfigs`.
* 🪛 fix: FIFO Walk Order in buildInitialToolSessions (P3 review)
The traversal used `Array.pop()` (LIFO), which visited the LAST
top-level agent first. The docstring says "primary first"; the code
contradicted it. When no skill seed exists the first-visited agent's
first file supplies the representative `session_id` written to
`Graph.sessions[EXECUTE_CODE]` — so a LIFO walk silently flipped which
agent that came from. `ToolNode` ultimately uses per-file `session_id`s
for runtime injection (so behavior was indistinguishable for current
callers), but the discrepancy was a footgun for any future consumer
that read the representative.
Switch to FIFO via `Array.shift()` to match both the docstring and the
existing `loadSubagentsFor` walk pattern in
`Endpoints/agents/initialize.js`. Add a regression test that asserts
the primary's `session_id` is the representative (and that all three
agents' files still contribute, with per-file `session_id`s preserved).
* 🔬 test: Lock In Code-Files Bug Fixes Per Comprehensive Review
Addresses MAJOR + MINOR + NIT findings from the multi-pass review:
**Finding #4 (MINOR) — empty relativePath misses sandbox fallback.**
A model calling `read_file("output/")` where "output" isn't a skill
name dead-ended with `Missing file path after skill name` instead of
being routed to the sandbox like every other malformed-path branch.
Add the same `codeEnvAvailable → handleSandboxFileFallback` pattern,
plus two regression tests.
**Finding #7 (NIT) — duplicate `skillsInScope()` helper.**
Hoist the identical helper out of two nested describe blocks to
module scope. Single source of truth.
**Finding #1 (MAJOR) — `persistedMessageId` had zero test coverage.**
The fix preserves a file's original `messageId` on update so
`getCodeGeneratedFiles` can still match it on subsequent turns. A
regression in the `isUpdate ? (claimed.messageId ?? messageId) : messageId`
ternary would silently re-introduce the original cross-turn priming
bug. Five new tests cover:
- UPDATE preserves `claimed.messageId` in the persisted record
- UPDATE falls back to current run id when `claimed.messageId` is
absent (legacy records predating the field)
- CREATE uses current run id (no claimed record exists)
- The runtime return value uses the LIVE id (artifact attribution)
even when the persisted record kept the original
- The image branch follows the same contract (would silently regress
if the ternary diverged across the two file-build branches)
The tests use a `snapshotCreateFileArgs()` helper because
`processCodeOutput` mutates the file object after `createFile`
returns (`Object.assign(file, { messageId, toolCallId })`) and a
naive `createFile.mock.calls[0][0]` would reflect the post-mutation
state instead of what was actually persisted.
**Finding #2 (MAJOR) — `readSandboxFile` had no direct tests.**
The model-controlled `file_path` flows through a POSIX single-quote
escape into a shell `cat` command, making this a security boundary.
A quoting regression would let a malicious filename break out of the
quoted argument and inject arbitrary shell. 20 new tests across:
- Shell quoting (7): plain filenames, embedded `'`, `$()`, backticks,
newlines, shell metachars, multiple consecutive single-quotes
- Payload shape (6): /exec URL, bash language, conditional
session_id / files inclusion, dedicated keepAlive:false agents
- Response handling (6): `{content}` on success, null on missing
base URL or absent stdout, throws on stderr-only, partial-success
returns stdout, transport errors are logged then rethrown
- Timeout (1): matches processCodeOutput's 15s SLA
Audited findings #5 (acknowledged tech debt — readSandboxFile in JS
workspace), #6 (pre-existing positional-args debt on
enrichWithSkillConfigurable), and #8 (cosmetic JSDoc style) — no
action taken per the reviewer's own assessment.
Audited finding #3 (walk order vs docstring) — already addressed in
commit
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