🧱 refactor: typed CodeEnvRef + kind discriminator + principal-aware sandbox cache (#12960)

* 🧱 refactor: typed CodeEnvRef + kind discriminator + tenant-aware sandbox cache

Final cutover for the LibreChat ↔ codeapi sandbox file identity. Replaces
the magic string `${session_id}/${file_id}?entity_id=...` with a typed,
discriminated `CodeEnvRef`. Pre-release lockstep deploy with codeapi
#1455 and agents #148; no legacy aliases retained.

## Final shape

```ts
type CodeEnvRef =
  | { kind: 'skill'; id: string; storage_session_id: string; file_id: string; version: number }
  | { kind: 'agent'; id: string; storage_session_id: string; file_id: string }
  | { kind: 'user';  id: string; storage_session_id: string; file_id: string };
```

`kind` drives codeapi's sessionKey: `<tenant>:<kind>:<id>[✌️<version>]`
for shared kinds, `<tenant>:user:<userId>` for user-private (auth context
provides `userId`). `version` is statically required for `kind: 'skill'`
and forbidden otherwise via discriminated union — constraint holds at
compile time on every consumer, not just codeapi's runtime validator.

`id` is sessionKey-meaningful for `'skill'` / `'agent'`; informational
only for `'user'` (codeapi resolves user identity from auth context).

## What changed

- `packages/data-provider/src/codeEnvRef.ts` — discriminated union +
  `CODE_ENV_KINDS` const-tuple keeps the runtime list and TS union
  locked together.
- Schemas: `metadata.codeEnvRef` and `SkillFile.codeEnvRef` enums
  tightened to `['skill', 'agent', 'user']`.
- `primeSkillFiles` writes `kind: 'skill'`, `id: skill._id`,
  `version: skill.version`. Cache-hit path reads `codeEnvRef`
  directly. Bumping `skill.version` on edit naturally invalidates
  the prior cache entry under the new sessionKey.
- `processCodeOutput` writes `kind: 'user'`, `id: req.user.id`. Output
  bucket is always user-scoped, regardless of which skill the
  execution invoked. New regression test pins the asymmetry.
- `primeFiles` reupload preserves `kind`/`id`/`version?` from the
  existing ref so a skill-cache-miss reupload doesn't silently demote
  to user bucket.
- `crud.js` upload functions (`uploadCodeEnvFile` /
  `batchUploadCodeEnvFiles`) thread `kind`/`id`/`version?` to the
  multipart form (codeapi #1455 option α). Without these on the wire,
  codeapi falls back to user bucketing and skill-cache invalidation
  never fires. Client-side validation mirrors codeapi's validator.
- `Files/process.js` — chat attachments use `kind: 'user'`; agent
  setup files use `kind: 'agent'`.
- Drops `entity_id` everywhere (struct, schema sub-docs, write paths,
  upload form fields). Drops `'system'` from the kind enum (no emitter
  ever existed).

## Test plan

- [x] `cd packages/data-provider && npx jest src/codeEnvRef.spec` — 4 / 4
- [x] `cd packages/data-schemas && npx jest` — 1447 / 1447
- [x] `cd packages/api && npx jest src/agents` — 81 / 81 in skillFiles +
  handlers + resources
- [x] `cd api && npx jest server/services/Files server/controllers/agents` —
  436 / 436
- [x] `cd api && npx jest server/services/Files/Code` — 98 / 98 (incl.
  new "outputs are user-scoped regardless of which skill the execution
  invoked" regression and "reupload forwards kind/id/version from
  existing ref")
- [x] `npx tsc --noEmit -p packages/data-{provider,schemas}/tsconfig.json
  && npx tsc --noEmit -p packages/api/tsconfig.json` — clean (only
  pre-existing unrelated dev errors in storage/balance, untouched here)

## Deploy notes

- **24h cache-miss burst** on first deploy. Inputs (skill caches re-prime
  under new sessionKey shape) and outputs (any pre-Phase C skill-output
  cached files become unreadable). Bounded by codeapi's 24h TTL.
- **Lockstep with codeapi #1455 and agents #148.** Either repo can land
  first since no aliases to drain, but the three deploys must overlap
  within the same maintenance window.
- **`@librechat/agents` bump to `3.1.79-dev.0`** required after agents
  #148 lands and is published.

## What this enables

Auth bridge work (JWT-based tenant/user identity between LC and codeapi)
— codeapi now derives sessionKey purely from `req.codeApiAuthContext.{
tenantId, userId}`, so the next chapter is replacing the header-asserted
user identity with a verified-claim path.

* 🩹 fix: persist execute_code uploads under codeEnvRef metadata key

Codex review P1 (chatgpt-codex-connector). `Files/process.js` was
storing the upload result under `metadata.fileIdentifier` even though:
- `uploadCodeEnvFile` now returns `{ storage_session_id, file_id }`,
  not the legacy magic string.
- The post-cutover schema (`File.metadata.codeEnvRef`) only declares
  `codeEnvRef` — mongoose strict mode silently strips unknown keys.
- All readers (`primeFiles`, `getCodeFilesByIds`,
  `categorizeFileForToolResources`, controller filtering) check
  `metadata.codeEnvRef`.

Net effect of the bug: chat-attached and agent-setup execute_code files
would lose their sandbox reference on save, and primeFiles would skip
them on subsequent code-execution turns — the file blob would still be
available locally but never re-mounted in the sandbox.

Fix: construct the full `CodeEnvRef` (`{ kind, id, storage_session_id,
file_id }`) at the write site and persist under `metadata.codeEnvRef`.
`BaseClient`'s "is this a code-env file" presence check accepts the new
shape alongside the legacy `fileIdentifier` for back-compat with any
pre-cutover records still in the database. Mirrors the same change in
`processAttachments.spec.ts` (which re-implements the BaseClient logic
for testability).

New regression tests in `process.spec.js` cover three cases:
- chat attachments (`messageAttachment=true`) → `kind: 'user'`
- agent setup (`messageAttachment=false`) → `kind: 'agent'`
- legacy `fileIdentifier` key is NOT persisted (would be schema-stripped)

* 🩹 fix: read storage_session_id on primed file refs (Codex P1)

Codex review (chatgpt-codex-connector). After Phase B's per-file
`session_id` → `storage_session_id` rename, `primeFiles` emits the
new field — but `seedCodeFilesIntoSessions` was still reading
`files[0].session_id` for the representative session and `f.session_id`
for the dedupe key. In runs with only primed attachments (no skill
seed), `representativeSessionId` was `undefined`, the function
returned the unchanged map, and `seedCodeFilesIntoSessions` silently
dropped the entire batch. The first `execute_code` call then started
without `_injected_files` and the agent couldn't see prior-turn
artifacts.

Fix:
- `codeFilesSession.ts`: read `f.storage_session_id` for both the
  dedupe key and the representative session id. JSDoc updated to
  match the new field name.
- `callbacks.js`: the two output-file persistence paths read
  `file.session_id` to pass to `processCodeOutput` — switch to
  `file.storage_session_id`. The original comment explicitly says
  this should be the STORAGE session, which is exactly the field
  Phase B renamed.
- `codeFilesSession.spec.ts`: fixture builder uses `storage_session_id`
  and `kind: 'user'` to match the post-cutover `CodeEnvFile` shape.

Lockstep coordination: this matches the post-bump shape of
`@librechat/agents` 3.1.79+. CI tsc errors against the currently-pinned
3.1.78 are expected and resolve when the dep bumps in this PR before
merge.

* 📦 chore: Bump `@librechat/agents` to version 3.1.80-dev.0 in package-lock and package.json files

* 🪪 fix: thread kind/id/version through codeapi /download URLs (Phase C α)

Symmetric fix for the upload-side wire change in 537725a. Codeapi's
`sessionAuth` middleware now requires `kind`/`id`/`version?` on every
download/freshness URL — without them it 400s with "kind must be one
of: skill, agent, user" before serving the file.

Three sites construct codeapi-side URLs that go through `sessionAuth`:

- `processCodeOutput` (`Files/Code/process.js`): `/download/<sess>/<id>`
  for freshly-generated sandbox outputs. Always `kind: 'user'` +
  `id: req.user.id` — code-output files are always user-private,
  regardless of which skill the run invoked.
- `getSessionInfo` (`Files/Code/process.js`): `/sessions/<sess>/objects/<id>`
  for the 23h freshness check. Pulls kind/id/version straight off the
  `codeEnvRef` already in scope — skill files stay skill-bucketed,
  user files stay user-bucketed.
- `/code/download/:session_id/:fileId` LC route (`routes/files/files.js`):
  proxies to codeapi for manual downloads. Code-output files only on
  this route, so `kind: 'user'` + `id: req.user.id`.

The `getCodeOutputDownloadStream` helper in `crud.js` now takes an
`identity` param, validated by a `buildCodeEnvDownloadQuery` helper
that mirrors `appendCodeEnvFileIdentity`'s shape rules: kind required
from the closed `{skill, agent, user}` set, version required for
'skill' and forbidden otherwise. Bad callers fail fast on the client
instead of round-tripping a 400.

Also cleans up two log-noise sources reported alongside the 400:

- `logAxiosError` in `packages/api/src/utils/axios.ts` was dumping
  `error.response.data` raw. With `responseType: 'arraybuffer'` that's
  a `Buffer` (~4 chars per byte after JSON-serialization); with
  `responseType: 'stream'` it's a `Readable` whose internal state
  serializes the entire ring buffer + socket. New `renderResponseData`
  decodes small buffers as UTF-8 (truncated past 2KB) and stubs streams
  as `'[stream]'`. Diagnostics stay useful, log lines stop being
  megabytes.
- `/code/download` route's catch was bare `logger.error('...', error)`,
  bypassing the redactor. Switched to `logAxiosError` so it benefits
  from the same buffer/stream handling.

Tests updated to match the new contract:
- crud.spec: `getCodeOutputDownloadStream` fixtures pass `userIdentity`;
  new cases cover skill identity (with version), bad kind rejection,
  skill-without-version rejection.
- process.spec: `getSessionInfo` test passes a full `codeEnvRef` object.

* ♻️ refactor: extract codeEnv identity helpers into packages/api

Per the project convention that new backend code lives in TypeScript
under `packages/api`, moves `appendCodeEnvFileIdentity` and
`buildCodeEnvDownloadQuery` from `api/server/services/Files/Code/crud.js`
into a new `packages/api/src/files/code/identity.ts` module.

Both helpers are pure validators that mirror codeapi's
`parseUploadSessionKeyInput` server-side rules (closed kind set,
`version` required for `'skill'` and forbidden otherwise) — they
deserve TS support and a dedicated spec rather than living as
JSDoc-typed helpers in the legacy `/api` workspace. The new module:

- Exports a `CodeEnvIdentity` interface using the
  `librechat-data-provider` `CodeEnvKind` discriminated union.
- Adds 13 unit tests in `identity.spec.ts` covering the validation
  matrix (skill+version, agent, user, and every rejection path) plus
  URL encoding for the download query.
- Re-exported from `packages/api/src/files/code/index.ts` alongside
  `classify`, `extract`, and `form`.

Consumer updates:
- `api/server/services/Files/Code/crud.js`: drops the local helpers
  and imports them from `@librechat/api`. Net -64 lines.
- `api/server/services/Files/Code/process.js`: same.
- Test mocks for `@librechat/api` in three spec files now stub the
  helpers' validation behavior locally rather than pulling them
  through `requireActual` (which would drag in provider-config
  init-time side effects). The package's `exports` field only
  surfaces the root barrel, so leaf imports aren't reachable from
  legacy `/api` test setup.

No runtime behavior change. Identity validation rules and emitted
form/query shapes are byte-for-byte identical pre/post.

* 🪪 fix: emit resource_id alongside id on _injected_files (skill 403 fix)

Companion to codeapi #1455 fix and agents 3.1.80-dev.1 — the wire
shape for shared-kind files now requires `resource_id` distinct from
the storage `id`. Without this LC change, codeapi's sessionKey
re-derivation on every shared-kind /exec rejects with 403
session_key_mismatch:

    cached:  legacy:skill:69dcf561...✌️59  (signed at upload, skill _id)
    derived: legacy:skill:ysPwEURuPk-...✌️59  (storage nanoid)

Emit sites updated:

- `primeInvokedSkills` cache-hit path: `resource_id: ref.id` (the
  persisted skill `_id` from `codeEnvRef.id`); `id: ref.file_id`
  unchanged (storage uuid).
- `primeInvokedSkills` fresh-upload path: `resource_id: skill._id.toString()`
  on every primed file (the `allPrimedFiles` builder type now carries
  the field).
- `processCodeOutput`'s `pushFile` (Code/process.js): `resource_id: ref.id`
  — for `kind: 'user'` this is informational (codeapi derives
  sessionKey from auth context) but emitted for shape uniformity
  with shared kinds.

Bumps `@librechat/agents` to `^3.1.80-dev.1` (the version that
ships the matching `CodeEnvFile.resource_id` field).

## Test plan

- [x] `cd packages/api && npx jest src/agents` — 67 / 67 pass
  (skillFiles fixtures updated to assert `resource_id` on the
  emitted CodeSessionContext.files).
- [x] `cd api && npx jest server/services/Files server/controllers/agents` —
  445 / 445 pass (process.spec fixtures updated for the reupload
  + cache-hit emission).
- [x] `npx tsc --noEmit -p packages/api/tsconfig.json` — clean.

* fix(skill-tool-call): carry resource_id through primeSkillFiles → artifact

Codeapi was 400ing every /exec following a `handle_skill` tool call
with `resource_id is invalid` (`type: 'undefined'`). Both code paths
in `primeSkillFiles` (cache-hit + fresh-upload) returned files
without `resource_id`/`kind`/`version`, and the artifact in
`handlers.ts` forwarded the stripped shape into
`tc.codeSessionContext.files` → `_injected_files`.

`primeInvokedSkills` (the NL-detected loader) had already been fixed
end-to-end; this commit aligns the tool-invoked path with the same
contract: `resource_id` = `skill._id.toString()`, `kind: 'skill'`,
`version` = the skill's monotonic counter.

Tests added to `skillFiles.spec.ts` lock the contract on
`primeSkillFiles` directly so future refactors can't silently drop
the resource identity again.

* fix(handlers.spec): align session_id → storage_session_id rename + kind discriminator

Pre-existing TS errors against the post-rename `CodeEnvFile` shape:
the test file still used `session_id` on per-file objects (renamed to
`storage_session_id` in agents Phase B/C) and was missing the `kind`
discriminator the discriminated union requires. Both inputs and the
matching `expect.toEqual(...)` mirrors updated together so the
runtime equality check still holds.

Lines 723-732 stay as-is — they sit behind `as unknown as
ToolCallRequest` and TS already skipped them.

* chore: fix `@librechat/agents`, correct version to 3.1.80-dev.0 in package.json files

* chore: bump `@librechat/agents` to version 3.1.80-dev.1 in package.json and package-lock.json

* chore: bump `@librechat/agents` to version 3.1.80-dev.2

* feat(observability): trace file priming chain from primeCodeFiles to _injected_files

Diagnosing the user-upload "files=[] on first /exec" bug requires
seeing where in the LC chain a file ref disappears. Prior to this
patch the chain (primeCodeFiles → primedCodeFiles → initialSessions
→ CodeSessionContext → _injected_files) was opaque end-to-end:
  - primeCodeFiles silently dropped files without `metadata.codeEnvRef`
  - reuploadFile catches all errors and continues with no signal
  - the handlers.ts handoff to codeapi never logged what it was sending

After this patch, a single grep on `[primeCodeFiles]` plus
`[code-env:inject]` shows the full per-file path:

  [primeCodeFiles] in: file_ids=N resourceFiles=M
  [primeCodeFiles] file=<id> path=skip reason=no-codeenvref filename=...
  [primeCodeFiles] file=<id> path=cache-hit-by-session storage_session_id=...
  [primeCodeFiles] file=<id> path=reupload reason=no-uploadtime ...
  [primeCodeFiles] file=<id> path=reupload reason=stale ...
  [primeCodeFiles] file=<id> path=reupload-success oldSession=... newSession=... newFileId=...
  [primeCodeFiles] file=<id> path=reupload-failed session=...
  [primeCodeFiles] file=<id> path=fresh-active storage_session_id=...
  [primeCodeFiles] out: returned=N skippedNoRef=M reuploadFailures=K

  [code-env:inject] tool=<name> files=N missingResourceId=K     (debug)
  [code-env:inject] M/N files missing resource_id ...           (warn)
  [code-env:inject] tool=<name> _injected_files=0 ...           (warn)

The boundary log warns when LC sends zero injected files on a
code-execution tool call — that's the user's actual symptom showing
up at the LC side instead of having to correlate against codeapi's
`Request received { files: [] }`.

Tag chosen as `[code-env:inject]` rather than `[handoff:exec]` to
avoid collision with the app-level "handoff" semantic (subagent
handoff workflow).

Structural cleanup in primeFiles: replaced the `if (ref) { ... }`
nesting with an early `if (!ref) continue` so the per-path
instrumentation hooks land at top-level scope instead of indented
inside a conditional. Behavior unchanged; pushFile / reuploadFile
identical.

Spec fixtures (handlers.spec.ts, codeFilesSession.spec.ts) updated
to include `resource_id` on `CodeEnvFile` literals — required by
the post-3.1.80-dev.2 type now installed.

## Test plan

- [x] `cd packages/api && npx jest src/agents/handlers.spec.ts src/agents/codeFilesSession.spec.ts src/agents/skillFiles.spec.ts` — 69/69 pass
- [x] `cd api && npx jest server/services/Files/Code/process.spec.js` — 84/84 pass
- [x] `npx tsc --noEmit -p packages/api` — clean
- [x] `npx eslint` on all four touched files — clean

* chore: add CONSOLE_JSON_STRING_LENGTH to .env.example for JSON log string length configuration

* fix(files): align codeapi upload filename with LC's sanitized DB filename

User-attached files for code execution were uploading to codeapi
under `file.originalname` (raw upload filename, may contain spaces /
special chars) while LC's DB record stored the sanitized form
(`sanitizeFilename(file.originalname)`, underscores). Codeapi
preserves whatever filename the upload sent, so the sandbox saw
`/mnt/data/<originalname>` while LC's `primeFiles` toolContext text
+ `_injected_files.name` referenced `file.filename` (sanitized).

Visible failure: agent gets system prompt saying

    /mnt/data/librechat_code_api_-_active_customer_-_2025-11-05.xlsx

…tries that path, hits `FileNotFoundError`, then notices the
sandbox's actual `Available files` line says

    /mnt/data/librechat code api - active customer - 2025-11-05.xlsx

…retries with spaces, succeeds. Wastes a tool call per upload and
leaks raw filenames into model context.

Fix: sanitize once and use the sanitized form in both the codeapi
upload AND the LC DB record. Sandbox path = LC toolContext text =
in-memory ref name. No drift.

Reupload path (`Code/process.js` line 867 `filename: file.filename`)
already uses the sanitized DB name, so it stays consistent with the
fresh-upload path after this change.

## Test plan

- [x] `cd api && npx jest server/services/Files/process` — 32/32 pass
- [x] `npx eslint` on the touched file — clean

* chore: bump `@librechat/agents` to version 3.1.80-dev.3 in package.json and package-lock.json
This commit is contained in:
Danny Avila 2026-05-08 10:17:52 -04:00
parent 9441563b95
commit 93c4ef4ba8
No known key found for this signature in database
GPG key ID: BF31EEB2C5CA0956
40 changed files with 1937 additions and 456 deletions

View file

@ -6,10 +6,19 @@ import {
type CodeFilesAgent,
} from './codeFilesSession';
const file = (id: string, session_id: string, name: string): CodeEnvFile => ({
const file = (id: string, storage_session_id: string, name: string): CodeEnvFile => ({
id,
session_id,
/* `resource_id` is informational for `kind: 'user'` (codeapi derives
* the sessionKey from the auth-context user, not this field) but
* still required by the type for shape uniformity. The id stand-in
* is fine here because no test asserts on its value. */
resource_id: id,
storage_session_id,
name,
/* `kind` drives codeapi's sessionKey shape; defaults to `'user'` for
* primed code-execution attachments at the test boundary (most are
* chat uploads). Tests that need shared kinds set it explicitly. */
kind: 'user',
});
describe('seedCodeFilesIntoSessions', () => {
@ -75,13 +84,18 @@ describe('seedCodeFilesIntoSessions', () => {
expect(entry.session_id).toBe('skill-sess');
});
it('skips seeding when incoming files have no session_id (defensive)', () => {
const fileWithoutSession = { id: 'x', session_id: '', name: 'orphan.csv' } as CodeEnvFile;
it('skips seeding when incoming files have no storage_session_id (defensive)', () => {
const fileWithoutSession = {
id: 'x',
storage_session_id: '',
name: 'orphan.csv',
kind: 'user',
} as CodeEnvFile;
const result = seedCodeFilesIntoSessions([fileWithoutSession], undefined);
expect(result).toBeUndefined();
});
it('dedupes incoming files that share session_id + id with existing entries', () => {
it('dedupes incoming files that share storage_session_id + id with existing entries', () => {
/**
* Regression for Codex review #2: shared conversation files commonly
* appear in multiple agents' `primedCodeFiles`. Without dedupe,
@ -128,7 +142,7 @@ describe('seedCodeFilesIntoSessions', () => {
const result = seedCodeFilesIntoSessions([a, a, b], undefined);
const entry = result!.get(Constants.EXECUTE_CODE) as CodeSessionContext;
expect(entry.files).toHaveLength(2);
expect(entry.files!.map((f) => f.session_id).sort()).toEqual(['sess-A', 'sess-B']);
expect(entry.files!.map((f) => f.storage_session_id).sort()).toEqual(['sess-A', 'sess-B']);
});
});
@ -267,8 +281,8 @@ describe('buildInitialToolSessions', () => {
expect(entry.session_id).toBe('sess-PRIMARY');
/* All three agents still contributed their files into the merged set. */
expect(entry.files!.map((f) => f.name).sort()).toEqual(['a.txt', 'b.txt', 'top.txt']);
/* And the per-file session_ids are preserved (ToolNode injects per-file). */
const byName = new Map(entry.files!.map((f) => [f.name, f.session_id]));
/* And the per-file storage_session_ids are preserved (ToolNode injects per-file). */
const byName = new Map(entry.files!.map((f) => [f.name, f.storage_session_id]));
expect(byName.get('top.txt')).toBe('sess-PRIMARY');
expect(byName.get('a.txt')).toBe('sess-A');
expect(byName.get('b.txt')).toBe('sess-B');

View file

@ -22,21 +22,24 @@ export interface CodeFilesAgent {
* after the first call returns one, so primed files were silently dropped.
*
* Files from `primeFiles` (api/server/services/Files/Code/process.js) carry
* per-file `session_id`s. The map's representative `session_id` is taken from
* the first incoming file (matching `primeInvokedSkills`); per-file ids on the
* `files` array are what `ToolNode` actually uses (`file.session_id ?? codeSession.session_id`).
* per-file `storage_session_id`s (the long-lived storage bucket id). The
* map's representative top-level `session_id` is seeded from the first
* incoming file's `storage_session_id` (matching `primeInvokedSkills`),
* since no execution session exists yet at seed time. Per-file ids on the
* `files` array are what `ToolNode` actually uses
* (`file.storage_session_id ?? execSessionId`).
*
* When an entry already exists (e.g. seeded by `primeInvokedSkills` for skill
* files), incoming files are appended after the existing ones. The pre-existing
* representative `session_id` is preserved so a partial-cache/fresh-prime
* collision doesn't shift which session id `ToolNode` picks for the call.
*
* Files are deduplicated by `session_id + id` as the stable identity key.
* Multiple agents in the same run commonly carry the same primed
* code-execution resources (shared conversation files), and without dedupe
* `_injected_files` would grow proportionally to agent count and inflate
* every `/exec` POST. First-seen wins so the original ordering / source
* is preserved.
* Files are deduplicated by `storage_session_id + id` as the stable
* identity key. Multiple agents in the same run commonly carry the same
* primed code-execution resources (shared conversation files), and without
* dedupe `_injected_files` would grow proportionally to agent count and
* inflate every `/exec` POST. First-seen wins so the original ordering /
* source is preserved.
*/
export function seedCodeFilesIntoSessions(
files: CodeEnvFile[] | undefined,
@ -50,15 +53,15 @@ export function seedCodeFilesIntoSessions(
const prior = sessions.get(Constants.EXECUTE_CODE) as CodeSessionContext | undefined;
/**
* Compose `(session_id, id)` as a stable identity. `name` alone isn't
* sufficient — two distinct primed uploads can share a filename
* (different sessions, different file_ids). The composite stays
* Compose `(storage_session_id, id)` as a stable identity. `name` alone
* isn't sufficient — two distinct primed uploads can share a filename
* (different storage sessions, different file_ids). The composite stays
* cheap to compute and the keys are short uuids.
*/
const seenKeys = new Set<string>();
const mergedFiles: FileRefs = [];
const pushIfFresh = (f: { id?: string; session_id?: string; name?: string }): void => {
const key = `${f.session_id ?? ''}\0${f.id ?? ''}`;
const pushIfFresh = (f: { id?: string; storage_session_id?: string; name?: string }): void => {
const key = `${f.storage_session_id ?? ''}\0${f.id ?? ''}`;
if (seenKeys.has(key)) return;
seenKeys.add(key);
mergedFiles.push(f as FileRefs[number]);
@ -68,7 +71,14 @@ export function seedCodeFilesIntoSessions(
}
for (const f of files) pushIfFresh(f);
const representativeSessionId = prior?.session_id ?? files[0].session_id;
/* Representative top-level `session_id` for the seed CodeSessionContext.
* No execution session exists yet at seed time, so the first incoming
* file's `storage_session_id` stands in until the first `/exec` call
* returns a real execution session id. ToolNode reads per-file
* `storage_session_id` for actual injection — the representative is
* informational rather than load-bearing. Mirrors the same convention
* used in `primeInvokedSkills`. */
const representativeSessionId = prior?.session_id ?? files[0].storage_session_id;
if (!representativeSessionId) {
return existing;
}

View file

@ -72,8 +72,20 @@ describe('createToolExecuteHandler', () => {
codeSessionContext: {
session_id: 'prev-session-abc',
files: [
{ session_id: 'prev-session-abc', id: 'f1', name: 'data.parquet' },
{ session_id: 'prev-session-abc', id: 'f2', name: 'chart.png' },
{
storage_session_id: 'prev-session-abc',
id: 'f1',
resource_id: 'user_alice',
name: 'data.parquet',
kind: 'user',
},
{
storage_session_id: 'prev-session-abc',
id: 'f2',
resource_id: 'user_alice',
name: 'chart.png',
kind: 'user',
},
],
},
},
@ -84,8 +96,20 @@ describe('createToolExecuteHandler', () => {
expect(capturedConfigs).toHaveLength(1);
expect(capturedConfigs[0].session_id).toBe('prev-session-abc');
expect(capturedConfigs[0]._injected_files).toEqual([
{ session_id: 'prev-session-abc', id: 'f1', name: 'data.parquet' },
{ session_id: 'prev-session-abc', id: 'f2', name: 'chart.png' },
{
storage_session_id: 'prev-session-abc',
id: 'f1',
resource_id: 'user_alice',
name: 'data.parquet',
kind: 'user',
},
{
storage_session_id: 'prev-session-abc',
id: 'f2',
resource_id: 'user_alice',
name: 'chart.png',
kind: 'user',
},
]);
});
@ -141,7 +165,15 @@ describe('createToolExecuteHandler', () => {
args: { lang: 'python', code: 'step_1()' },
codeSessionContext: {
session_id: 'session-A',
files: [{ session_id: 'session-A', id: 'fa', name: 'a.csv' }],
files: [
{
storage_session_id: 'session-A',
id: 'fa',
resource_id: 'user_alice',
name: 'a.csv',
kind: 'user',
},
],
},
},
{
@ -150,7 +182,15 @@ describe('createToolExecuteHandler', () => {
args: { lang: 'python', code: 'step_2()' },
codeSessionContext: {
session_id: 'session-A',
files: [{ session_id: 'session-A', id: 'fa', name: 'a.csv' }],
files: [
{
storage_session_id: 'session-A',
id: 'fa',
resource_id: 'user_alice',
name: 'a.csv',
kind: 'user',
},
],
},
},
];
@ -161,7 +201,13 @@ describe('createToolExecuteHandler', () => {
for (const config of capturedConfigs) {
expect(config.session_id).toBe('session-A');
expect(config._injected_files).toEqual([
{ session_id: 'session-A', id: 'fa', name: 'a.csv' },
{
storage_session_id: 'session-A',
id: 'fa',
resource_id: 'user_alice',
name: 'a.csv',
kind: 'user',
},
]);
}
});
@ -177,7 +223,15 @@ describe('createToolExecuteHandler', () => {
args: { query: 'test' },
codeSessionContext: {
session_id: 'should-be-ignored',
files: [{ session_id: 'x', id: 'y', name: 'z' }],
files: [
{
storage_session_id: 'x',
id: 'y',
resource_id: 'user_alice',
name: 'z',
kind: 'user',
},
],
},
},
];
@ -205,6 +259,7 @@ describe('createToolExecuteHandler', () => {
name: 'pii-redactor',
body: 'restricted body',
fileCount: 0,
version: 1,
disableModelInvocation: true,
}));
const handler = createSkillHandler(getSkillByName);
@ -247,6 +302,7 @@ describe('createToolExecuteHandler', () => {
name: 'normal-skill',
body: 'body',
fileCount: 0,
version: 1,
}));
const handler = createSkillHandler(getSkillByName);
@ -276,6 +332,7 @@ describe('createToolExecuteHandler', () => {
name: 'maybe-disabled',
body: 'body',
fileCount: 0,
version: 1,
}));
const handler = createSkillHandler(getSkillByName);
@ -302,6 +359,7 @@ describe('createToolExecuteHandler', () => {
name: 'maybe-disabled-read',
body: '# Body',
fileCount: 0,
version: 1,
}));
const handler = createToolExecuteHandler({
loadTools: jest.fn(async () => ({
@ -342,6 +400,7 @@ describe('createToolExecuteHandler', () => {
name: 'manually-primed',
body: '# Body',
fileCount: 0,
version: 1,
}));
const handler = createToolExecuteHandler({
loadTools: jest.fn(async () => ({
@ -391,6 +450,7 @@ describe('createToolExecuteHandler', () => {
name: 'pii-redactor',
body: 'restricted body',
fileCount: 0,
version: 1,
disableModelInvocation: true,
}));
const handler = createToolExecuteHandler({
@ -421,6 +481,7 @@ describe('createToolExecuteHandler', () => {
name: 'normal-skill',
body: '# Body',
fileCount: 0,
version: 1,
}));
const handler = createToolExecuteHandler({
loadTools: jest.fn(async () => ({
@ -454,6 +515,7 @@ describe('createToolExecuteHandler', () => {
name: 'manual-only-skill',
body: '# Use references/docs.md for details',
fileCount: 0,
version: 1,
disableModelInvocation: true,
}));
const handler = createToolExecuteHandler({
@ -489,6 +551,7 @@ describe('createToolExecuteHandler', () => {
name: 'other-disabled-skill',
body: 'restricted',
fileCount: 0,
version: 1,
disableModelInvocation: true,
}));
const handler = createToolExecuteHandler({
@ -526,6 +589,7 @@ describe('createToolExecuteHandler', () => {
name: 'always-applied-legal',
body: '# Cite references/policy.md when advising',
fileCount: 0,
version: 1,
disableModelInvocation: true,
}));
const handler = createToolExecuteHandler({
@ -566,6 +630,7 @@ describe('createToolExecuteHandler', () => {
name: 'collides',
body: '# primed body',
fileCount: 0,
version: 1,
}));
const handler = createToolExecuteHandler({
loadTools: jest.fn(async () => ({
@ -615,6 +680,7 @@ describe('createToolExecuteHandler', () => {
name: 'brand-guidelines',
body: 'skill body',
fileCount: 2,
version: 1,
}));
/* `loadTools` injects `codeEnvAvailable` into the returned
`configurable`, which mirrors production flow through
@ -789,6 +855,7 @@ describe('createToolExecuteHandler', () => {
name: 'primed-only-skill',
body: '# Primed skill body',
fileCount: 1,
version: 1,
}));
const readSandboxFile = jest.fn();
const getSkillFileByPath = jest.fn(async () => ({
@ -888,6 +955,7 @@ describe('createToolExecuteHandler', () => {
name: 'real-skill',
body: '# Real Body',
fileCount: 0,
version: 1,
}));
const readSandboxFile = jest.fn();
const handler = makeReadFileHandler({

View file

@ -10,6 +10,7 @@ import type {
ToolExecuteBatchRequest,
} from '@librechat/agents';
import { Types } from 'mongoose';
import type { CodeEnvRef } from 'librechat-data-provider';
import type { StructuredToolInterface } from '@librechat/agents/langchain/tools';
import type { SkillFileRecord } from './skillFiles';
import type { ServerRequest } from '~/types';
@ -67,6 +68,11 @@ export interface ToolExecuteOptions {
body: string;
name: string;
_id: Types.ObjectId;
/** Monotonic counter on the skill record. Threaded into
* `codeEnvRef.version` so codeapi's sessionKey scopes the cache
* per-revision; bumping the version on edit invalidates the
* prior cache entry. */
version: number;
fileCount: number;
/**
* Set when the skill author opted out of model invocation. The handler
@ -83,22 +89,30 @@ export interface ToolExecuteOptions {
getDownloadStream?: (req: ServerRequest, filepath: string) => Promise<NodeJS.ReadableStream>;
[key: string]: unknown;
};
/** Batch uploads files to the code execution environment */
/** Batch uploads files to the code execution environment. `kind`/`id`/
* `version?` carry the resource identity codeapi uses to derive the
* sessionKey for the batch's storage bucket. */
batchUploadCodeEnvFiles?: (params: {
req: ServerRequest;
files: Array<{ stream: NodeJS.ReadableStream; filename: string }>;
entity_id?: string;
}) => Promise<{ session_id: string; files: Array<{ fileId: string; filename: string }> }>;
kind: 'skill' | 'agent' | 'user';
id: string;
version?: number;
read_only?: boolean;
}) => Promise<{
storage_session_id: string;
files: Array<{ fileId: string; filename: string }>;
}>;
/** Checks if a code env file is still active. Returns lastModified or null. */
getSessionInfo?: (fileIdentifier: string) => Promise<string | null>;
getSessionInfo?: (ref: CodeEnvRef) => Promise<string | null>;
/** 23-hour freshness check */
checkIfActive?: (dateString: string) => boolean;
/** Persists codeEnvIdentifiers on skill files after upload */
/** Persists `codeEnvRef` on skill files after upload */
updateSkillFileCodeEnvIds?: (
updates: Array<{
skillId: Types.ObjectId | string;
relativePath: string;
codeEnvIdentifier: string;
codeEnvRef: CodeEnvRef;
}>,
) => Promise<void>;
/** Loads a skill file by path (for read_file tool) */
@ -888,7 +902,19 @@ async function handleSkillToolCall(
const contentText = `Skill "${args.skillName}" loaded. Follow the instructions below.`;
let artifact:
| { session_id: string; files: Array<{ id: string; session_id: string; name: string }> }
| {
session_id: string;
files: Array<{
id: string;
/** Resource id (skill `_id`). codeapi requires this distinct
* from the storage `id` to scope sessionKey by resource. */
resource_id: string;
name: string;
storage_session_id: string;
kind?: 'skill' | 'agent' | 'user';
version?: number;
}>;
}
| undefined;
// Prime skill files to code env — only when the `execute_code` capability
@ -916,7 +942,26 @@ async function handleSkillToolCall(
updateSkillFileCodeEnvIds,
});
if (primeResult) {
artifact = primeResult;
/* `session_id` at the top of the artifact is the (representative)
* execution session — ToolNode reads it for CodeSessionContext
* continuity. Per-file storage lives on each file's
* `storage_session_id`. Skill files carry `kind: 'skill'` and
* the skill's version so codeapi's sessionKey scopes the
* cache per-revision. */
artifact = {
session_id: primeResult.storage_session_id,
files: primeResult.files.map((f) => ({
id: f.id,
/* `resource_id` (skill `_id`) is what codeapi feeds into
* `<tenant>:skill:<id>:v:<version>` — without it the next
* /exec authorizer sees `resource_id: undefined` and 400s. */
resource_id: f.resource_id,
name: f.name,
storage_session_id: f.storage_session_id,
kind: 'skill',
version: skill.version,
})),
};
}
} catch (error) {
logger.error(
@ -1015,6 +1060,56 @@ export function createToolExecuteHandler(options: ToolExecuteOptions): EventHand
toolCallConfig.session_id = tc.codeSessionContext.session_id;
if (tc.codeSessionContext.files && tc.codeSessionContext.files.length > 0) {
toolCallConfig._injected_files = tc.codeSessionContext.files;
/* Last LC-controlled point before the wire. Mirrors
* codeapi's validator context so the two log sides
* correlate on a single grep. */
const refs = tc.codeSessionContext.files as Array<{
id?: unknown;
resource_id?: unknown;
storage_session_id?: unknown;
kind?: unknown;
version?: unknown;
name?: unknown;
}>;
const summary = refs.map((f) => ({
kind: f.kind,
hasResourceId: typeof f.resource_id === 'string' && !!f.resource_id,
hasStorageSessionId:
typeof f.storage_session_id === 'string' && !!f.storage_session_id,
hasVersion: typeof f.version === 'number',
}));
const missingResourceId = summary.filter((s) => !s.hasResourceId).length;
logger.debug(
`[code-env:inject] tool=${tc.name} files=${refs.length} ` +
`missingResourceId=${missingResourceId}`,
{ summary },
);
if (missingResourceId > 0) {
logger.warn(
`[code-env:inject] ${missingResourceId}/${refs.length} files missing resource_id ` +
`for tool=${tc.name} — codeapi will reject with 400`,
{ summary },
);
}
} else {
/* Empty `_injected_files` on a code-execution tool
* call. Almost always means the seeding chain
* (primeCodeFiles → initialSessions →
* CodeSessionContext) dropped the file upstream.
* `session_id` is still emitted; agents falls
* through to the `/files/<sid>` legacy fetch
* which is post-cutover broken (returns 400).
* Pair with `[primeCodeFiles]` traces below to
* locate the layer that lost the ref. */
logger.warn(
`[code-env:inject] tool=${tc.name} _injected_files=0 — sandbox will see no input files`,
{
tool: tc.name,
session_id: tc.codeSessionContext.session_id,
codeSessionContextHasFiles: tc.codeSessionContext.files !== undefined,
codeSessionContextFileCount: tc.codeSessionContext.files?.length ?? 0,
},
);
}
}

View file

@ -127,7 +127,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
},
];
@ -328,7 +328,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
},
];
@ -542,7 +542,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
};
@ -713,7 +713,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
};
@ -728,7 +728,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
};
@ -878,7 +878,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
};
@ -1128,7 +1128,7 @@ describe('primeResources', () => {
embedded: false,
usage: 0,
metadata: {
fileIdentifier: 'python-script',
codeEnvRef: { kind: 'user', id: 'user1', storage_session_id: 'sess', file_id: 'fid' },
},
},
{

View file

@ -80,7 +80,7 @@ const addFileToResource = ({
/**
* Categorizes a file into the appropriate tool resource based on its properties
* Files are categorized as:
* - execute_code: Files with fileIdentifier metadata
* - execute_code: Files with a code-environment ref (`codeEnvRef`)
* - file_search: Files marked as embedded
* - image_edit: Image files in the request file set with dimensions
* @param params - Parameters object
@ -100,7 +100,7 @@ const categorizeFileForToolResources = ({
requestFileSet: Set<string>;
processedResourceFiles: Set<string>;
}): void => {
if (file.metadata?.fileIdentifier) {
if (file.metadata?.codeEnvRef) {
addFileToResource({
file,
resourceType: EToolResources.execute_code,

View file

@ -14,15 +14,16 @@ jest.mock('./run', () => ({
import { Readable } from 'stream';
import { Types } from 'mongoose';
import { primeInvokedSkills } from './skillFiles';
import type { PrimeInvokedSkillsDeps } from './skillFiles';
import { primeInvokedSkills, primeSkillFiles } from './skillFiles';
import type { PrimeInvokedSkillsDeps, PrimeSkillFilesParams } from './skillFiles';
const SKILL_ID = new Types.ObjectId();
const SKILL_VERSION = 7;
function makeDeps(overrides: Partial<PrimeInvokedSkillsDeps> = {}): PrimeInvokedSkillsDeps {
const listSkillFiles = jest.fn().mockResolvedValue([]);
const batchUploadCodeEnvFiles = jest.fn().mockResolvedValue({
session_id: 'session-x',
storage_session_id: 'session-x',
files: [],
});
return {
@ -34,6 +35,7 @@ function makeDeps(overrides: Partial<PrimeInvokedSkillsDeps> = {}): PrimeInvoked
_id: SKILL_ID,
name: 'brand-guidelines',
body: 'skill body',
version: SKILL_VERSION,
fileCount: 2,
}),
listSkillFiles,
@ -79,14 +81,10 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
];
const listSkillFiles = jest.fn().mockResolvedValue(fileRecords);
const getStrategyFunctions = jest.fn().mockReturnValue({
/* A real empty Readable — matches the production contract for
`getDownloadStream` and works even if `batchUploadCodeEnvFiles`
is later replaced with a partially-real implementation that
iterates the stream. */
getDownloadStream: jest.fn().mockResolvedValue(Readable.from(Buffer.from(''))),
});
const batchUploadCodeEnvFiles = jest.fn().mockResolvedValue({
session_id: 'session-42',
storage_session_id: 'session-42',
files: [{ fileId: 'file-1', filename: 'brand-guidelines/references/style.md' }],
});
@ -101,17 +99,17 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
expect(batchUploadCodeEnvFiles).toHaveBeenCalledTimes(1);
const [uploadArgs] = batchUploadCodeEnvFiles.mock.calls[0];
/* Phase 8 deprecation: LibreChat no longer threads an apiKey through
the sandbox upload path. The agents library / sandbox service owns
auth internally. */
expect(uploadArgs).not.toHaveProperty('apiKey');
expect(uploadArgs.entity_id).toBe(SKILL_ID.toString());
/* Skill files are infrastructure inputs; the read_only flag tells codeapi
to seal them so any sandboxed-code modifications are dropped instead
of surfaced as ghost generated artifacts. */
expect(uploadArgs).not.toHaveProperty('entity_id');
expect(uploadArgs.read_only).toBe(true);
/* One uploaded file per `fileRecords` entry plus the synthetic
SKILL.md that `primeSkillFiles` always prepends. */
/* Resource identity for codeapi's sessionKey: skill files share
* cross-user-within-tenant under `<tenant>:skill:<id>:v:<version>`.
* Without these on the upload, codeapi falls back to user bucketing
* and skill-cache invalidation (driven by version bump on edit)
* never fires. See codeapi #1455 (option α). */
expect(uploadArgs.kind).toBe('skill');
expect(uploadArgs.id).toBe(SKILL_ID.toString());
expect(uploadArgs.version).toBe(SKILL_VERSION);
expect(uploadArgs.files).toHaveLength(fileRecords.length + 1);
expect(uploadArgs.files.map((f: { filename: string }) => f.filename)).toEqual(
expect.arrayContaining(['brand-guidelines/SKILL.md', 'brand-guidelines/references/style.md']),
@ -128,12 +126,12 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
expect(deps.getSkillByName).not.toHaveBeenCalled();
});
it('forwards entity_id on every file in initialSessions after fresh upload', async () => {
/* Regression: codeapi now resolves sessionKey per-file using `entity_id`.
* Skill files must carry `entity_id=<skillId>` through priming so that
* a subsequent execute mixing skill files and a user attachment can be
* authorized — both files in the same call resolve to their own scope
* instead of collapsing onto a single request-level entity. */
it('writes kind/version/storage_session_id on every cached file after a fresh upload', async () => {
/* Per-file refs in `CodeSessionContext.files` carry the resource
* identity (kind=skill, id=skillId, version=skill.version) so
* codeapi can derive the right sessionKey. Cache scope is per
* (tenant, kind, id, version) — bumping the skill version
* naturally invalidates the prior cache. */
const listSkillFiles = jest.fn().mockResolvedValue([
{
relativePath: 'references/style.md',
@ -147,7 +145,7 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
getDownloadStream: jest.fn().mockResolvedValue(Readable.from(Buffer.from(''))),
});
const batchUploadCodeEnvFiles = jest.fn().mockResolvedValue({
session_id: 'session-42',
storage_session_id: 'session-42',
files: [{ fileId: 'file-1', filename: 'brand-guidelines/references/style.md' }],
});
@ -164,9 +162,16 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
expect(codeSession?.files).toEqual([
{
id: 'file-1',
/* `resource_id` is the skill `_id` — drives codeapi's
* sessionKey re-derivation. Distinct from `id` (the storage
* file_id). The split fixes the shared-kind 403 mismatch
* where codeapi computed sessionKey from the storage nanoid
* instead of the skill _id. */
resource_id: SKILL_ID.toString(),
name: 'brand-guidelines/references/style.md',
session_id: 'session-42',
entity_id: SKILL_ID.toString(),
storage_session_id: 'session-42',
kind: 'skill',
version: SKILL_VERSION,
},
]);
});
@ -175,10 +180,10 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
/* Concurrency regression: when many users hit the same skill at
* once, fire-and-forget keeps the cache in miss-steady-state for
* the burst — User N's prime reads SkillFile docs before User N-1's
* persist commits, sees no `codeEnvIdentifier`, re-uploads, and
* fires its own forget that User N+1 also races. Awaiting the
* persist before the prime resolves ensures the next concurrent
* caller observes the cache pointer instead of racing a write. */
* persist commits, sees no codeEnvRef, re-uploads, and fires its
* own forget that User N+1 also races. Awaiting the persist before
* the prime resolves ensures the next concurrent caller observes
* the cache pointer instead of racing a write. */
const fileRecords = [
{
relativePath: 'references/style.md',
@ -193,7 +198,7 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
getDownloadStream: jest.fn().mockResolvedValue(Readable.from(Buffer.from(''))),
});
const batchUploadCodeEnvFiles = jest.fn().mockResolvedValue({
session_id: 'session-42',
storage_session_id: 'session-42',
files: [{ fileId: 'file-1', filename: 'brand-guidelines/references/style.md' }],
});
@ -235,17 +240,23 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
{
skillId: SKILL_ID,
relativePath: 'references/style.md',
codeEnvIdentifier: `session-42/file-1?entity_id=${SKILL_ID.toString()}`,
codeEnvRef: {
kind: 'skill',
id: SKILL_ID.toString(),
storage_session_id: 'session-42',
file_id: 'file-1',
version: SKILL_VERSION,
},
},
]);
});
it('parses entity_id off codeEnvIdentifier in the cached-skills hot path', async () => {
it('reads codeEnvRef in the cached-skills hot path', async () => {
/* When all skill files are still active in codeapi, primeInvokedSkills
* skips the batch upload entirely and reconstructs file refs from each
* skill file's persisted `codeEnvIdentifier`. The query string carries
* `?entity_id=<skillId>`, which must survive into `_injected_files` so
* downstream authorization still uses the skill's scope. */
* skips the batch upload entirely and reconstructs file refs from
* each skill file's persisted `codeEnvRef`. The kind/version travel
* through to `CodeSessionContext.files` so the next exec carries
* them on `_injected_files` for codeapi's sessionKey derivation. */
const listSkillFiles = jest.fn().mockResolvedValue([
{
relativePath: 'references/style.md',
@ -253,7 +264,13 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
filepath: '/storage/brand-guidelines/references/style.md',
source: 's3',
bytes: 256,
codeEnvIdentifier: `session-cached/file-cached?entity_id=${SKILL_ID.toString()}`,
codeEnvRef: {
kind: 'skill',
id: SKILL_ID.toString(),
storage_session_id: 'session-cached',
file_id: 'file-cached',
version: SKILL_VERSION,
},
},
]);
const batchUploadCodeEnvFiles = jest.fn();
@ -261,7 +278,7 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
codeEnvAvailable: true,
listSkillFiles,
batchUploadCodeEnvFiles,
getSessionInfo: jest.fn().mockResolvedValue('2026-05-05T00:00:00Z'),
getSessionInfo: jest.fn().mockResolvedValue('2026-05-06T00:00:00Z'),
checkIfActive: jest.fn().mockReturnValue(true),
});
@ -272,9 +289,118 @@ describe('primeInvokedSkills — execute_code capability gate', () => {
expect(codeSession?.files).toEqual([
{
id: 'file-cached',
/* From the cache-hit path: pulls `resource_id` directly off
* the persisted `codeEnvRef.id` (the skill `_id`). */
resource_id: SKILL_ID.toString(),
name: 'brand-guidelines/references/style.md',
session_id: 'session-cached',
entity_id: SKILL_ID.toString(),
storage_session_id: 'session-cached',
kind: 'skill',
version: SKILL_VERSION,
},
]);
});
});
/* The tool-invoked skill loader (`handle_skill` -> `primeSkillFiles`)
* is a separate code path from `primeInvokedSkills` (the NL-detected
* loader). Both feed `_injected_files` on the next /exec; both must
* carry `resource_id` end-to-end, otherwise codeapi 400s with
* `resource_id is invalid` (`type: 'undefined'`). Tests below lock
* that contract on the lower-level helper directly. */
describe('primeSkillFiles — resource identity propagation', () => {
beforeEach(() => {
jest.clearAllMocks();
});
function makeSkillFilesDeps(
overrides: Partial<PrimeSkillFilesParams> = {},
): PrimeSkillFilesParams {
return {
skill: {
_id: SKILL_ID,
name: 'brand-guidelines',
body: 'skill body',
version: SKILL_VERSION,
},
skillFiles: [],
req: { user: { id: 'user-1' } } as PrimeSkillFilesParams['req'],
getStrategyFunctions: jest.fn().mockReturnValue({
getDownloadStream: jest.fn().mockResolvedValue(Readable.from(Buffer.from(''))),
}),
batchUploadCodeEnvFiles: jest.fn().mockResolvedValue({
storage_session_id: 'session-fresh',
files: [
{ fileId: 'file-fresh', filename: 'brand-guidelines/references/style.md' },
{ fileId: 'file-skillmd', filename: 'brand-guidelines/SKILL.md' },
],
}),
...overrides,
};
}
it('fresh-upload path: emits resource_id=skill._id, kind=skill, version on each file', async () => {
const deps = makeSkillFilesDeps({
skillFiles: [
{
relativePath: 'references/style.md',
filename: 'style.md',
filepath: '/storage/brand-guidelines/references/style.md',
source: 's3',
bytes: 256,
},
],
});
const result = await primeSkillFiles(deps);
expect(result?.files).toEqual([
{
id: 'file-fresh',
resource_id: SKILL_ID.toString(),
storage_session_id: 'session-fresh',
name: 'brand-guidelines/references/style.md',
kind: 'skill',
version: SKILL_VERSION,
},
]);
});
it('cache-hit path: re-derives resource_id/kind/version from persisted codeEnvRef', async () => {
const cachedRef = {
kind: 'skill' as const,
id: SKILL_ID.toString(),
storage_session_id: 'session-cached',
file_id: 'file-cached',
version: SKILL_VERSION,
};
const batchUploadCodeEnvFiles = jest.fn();
const deps = makeSkillFilesDeps({
skillFiles: [
{
relativePath: 'references/style.md',
filename: 'style.md',
filepath: '/storage/brand-guidelines/references/style.md',
source: 's3',
bytes: 256,
codeEnvRef: cachedRef,
},
],
batchUploadCodeEnvFiles,
getSessionInfo: jest.fn().mockResolvedValue('2026-05-06T00:00:00Z'),
checkIfActive: jest.fn().mockReturnValue(true),
});
const result = await primeSkillFiles(deps);
expect(batchUploadCodeEnvFiles).not.toHaveBeenCalled();
expect(result?.files).toEqual([
{
id: 'file-cached',
resource_id: SKILL_ID.toString(),
storage_session_id: 'session-cached',
name: 'brand-guidelines/references/style.md',
kind: 'skill',
version: SKILL_VERSION,
},
]);
});

View file

@ -2,6 +2,7 @@ import { Readable } from 'stream';
import { Constants } from '@librechat/agents';
import { logger } from '@librechat/data-schemas';
import type { ToolSessionMap, CodeSessionContext } from '@librechat/agents';
import type { CodeEnvRef } from 'librechat-data-provider';
import type { Types } from 'mongoose';
import type { ServerRequest } from '~/types';
import { extractInvokedSkillsFromPayload } from './run';
@ -12,11 +13,19 @@ export interface SkillFileRecord {
filepath: string;
source: string;
bytes: number;
codeEnvIdentifier?: string;
codeEnvRef?: CodeEnvRef;
}
export interface PrimeSkillFilesParams {
skill: { body: string; name: string; _id: Types.ObjectId | string };
skill: {
body: string;
name: string;
_id: Types.ObjectId | string;
/** Monotonic counter on the skill record. Bumped on every edit
* (frontmatter / body / file upsert). Threaded into `codeEnvRef.version`
* so codeapi's sessionKey scopes the cache per-revision. */
version: number;
};
skillFiles: SkillFileRecord[];
req: ServerRequest;
getStrategyFunctions: (source: string) => {
@ -26,44 +35,53 @@ export interface PrimeSkillFilesParams {
batchUploadCodeEnvFiles: (params: {
req: ServerRequest;
files: Array<{ stream: NodeJS.ReadableStream; filename: string }>;
entity_id?: string;
/** Resource kind that owns the batch's storage session. Drives codeapi's
* sessionKey derivation (`<tenant>:<kind>:<id>[:v:<version>]`). */
kind: 'skill' | 'agent' | 'user';
/** Resource id (skillId / agentId / userId). */
id: string;
/** Required when `kind === 'skill'`; forbidden otherwise. */
version?: number;
/** When true, codeapi tags every file in the batch as infrastructure
* (read-only inputs that must never surface as generated artifacts,
* even if sandboxed code mutates the bytes on disk). */
read_only?: boolean;
}) => Promise<{
session_id: string;
storage_session_id: string;
files: Array<{ fileId: string; filename: string }>;
}>;
/** Checks if a code env file is still active. Returns lastModified timestamp or null. */
getSessionInfo?: (fileIdentifier: string) => Promise<string | null>;
getSessionInfo?: (ref: CodeEnvRef) => Promise<string | null>;
/** 23-hour freshness check */
checkIfActive?: (dateString: string) => boolean;
/** Persists codeEnvIdentifier on skill files after upload. Implementations
/** Persists `codeEnvRef` on skill files after upload. Implementations
* warn-log on partial writes (matchedCount/modifiedCount mismatch)
* internally — caller can fire-and-forget without losing visibility. */
updateSkillFileCodeEnvIds?: (
updates: Array<{
skillId: Types.ObjectId | string;
relativePath: string;
codeEnvIdentifier: string;
codeEnvRef: CodeEnvRef;
}>,
) => Promise<{ matchedCount: number; modifiedCount: number } | void>;
}
export interface PrimeSkillFilesResult {
session_id: string;
files: Array<{ id: string; session_id: string; name: string; entity_id?: string }>;
}
/** Parses `entity_id` out of a persisted `codeEnvIdentifier`'s query string.
* Returns `undefined` when the identifier has no query string or no
* `entity_id` (legacy user-attachment uploads). */
function parseEntityIdFromCodeEnvIdentifier(identifier: string): string | undefined {
const queryString = identifier.split('?')[1];
if (!queryString) return undefined;
const value = new URLSearchParams(queryString).get('entity_id');
return value && value.length > 0 ? value : undefined;
/** Representative storage session id (first file's). */
storage_session_id: string;
files: Array<{
/** Storage file id (the per-file uuid file_server returned at upload). */
id: string;
/** Resource id — the entity that owns the storage session. For skill
* files this is `skill._id.toString()`. Distinct from `id`; codeapi
* derives the sessionKey from `resource_id` (shared cache scope) but
* validates upload presence under `id` (per-file storage key). */
resource_id: string;
storage_session_id: string;
name: string;
kind: 'skill' | 'agent' | 'user';
version?: number;
}>;
}
/**
@ -90,29 +108,27 @@ export async function primeSkillFiles(
updateSkillFileCodeEnvIds,
} = params;
// Check if ALL existing sessions are still active before reusing cached refs.
// Files normally share one session, but a partial bulkWrite failure during
// updateSkillFileCodeEnvIds can leave mixed session IDs. Checking every
// distinct session prevents serving stale identifiers that 404 in code env.
/* Cache-hit path: every skillFile carries a `codeEnvRef` from the
* previous prime. Check freshness against codeapi for every distinct
* storage session; if all are still active, reuse without
* re-uploading. The skill version is part of the ref — when the
* skill is edited, the upsert clears the ref and forces a fresh
* upload on the next prime. */
if (getSessionInfo && checkIfActive && skillFiles.length > 0) {
// All files must have identifiers for the cache to be complete.
// Any missing identifier means partial persistence — fall through to re-upload.
const allHaveIds = skillFiles.every((sf) => sf.codeEnvIdentifier);
if (allHaveIds) {
const sessionIds = new Set(
skillFiles.map((sf) => (sf.codeEnvIdentifier as string).split('?')[0].split('/')[0]),
);
const allHaveRefs = skillFiles.every((sf) => sf.codeEnvRef !== undefined);
if (allHaveRefs) {
const refsBySession = new Map<string, CodeEnvRef>();
for (const sf of skillFiles) {
const ref = sf.codeEnvRef;
if (ref && !refsBySession.has(ref.storage_session_id)) {
refsBySession.set(ref.storage_session_id, ref);
}
}
try {
const checkResults = await Promise.all(
Array.from(sessionIds).map(async (sid) => {
const representative = skillFiles.find((sf) =>
sf.codeEnvIdentifier!.startsWith(`${sid}/`),
);
if (!representative) {
return false;
}
const lastModified = await getSessionInfo(representative.codeEnvIdentifier!);
Array.from(refsBySession.values()).map(async (ref) => {
const lastModified = await getSessionInfo(ref);
return !!(lastModified && checkIfActive(lastModified));
}),
);
@ -121,22 +137,30 @@ export async function primeSkillFiles(
if (allActive) {
const files: PrimeSkillFilesResult['files'] = [];
for (const sf of skillFiles) {
const identifier = sf.codeEnvIdentifier as string;
const [sid, fid] = identifier.split('?')[0].split('/');
const entity_id = parseEntityIdFromCodeEnvIdentifier(identifier);
const ref = sf.codeEnvRef;
if (!ref) continue;
/* Cache-hit refs already carry resource identity (kind / id /
* version) — pull them through so the artifact emitted by
* `handle_skill` and forwarded to `_injected_files` includes
* `resource_id`. Without this the next /exec sends
* `resource_id: undefined` and codeapi 400s. The discriminated
* union pins `version` to the skill branch only — destructure
* before the spread so TS accepts the conditional pull. */
files.push({
id: fid,
session_id: sid,
id: ref.file_id,
resource_id: ref.id,
storage_session_id: ref.storage_session_id,
name: `${skill.name}/${sf.relativePath}`,
...(entity_id != null ? { entity_id } : {}),
kind: ref.kind,
...(ref.kind === 'skill' ? { version: ref.version } : {}),
});
}
if (files.length > 0) {
logger.debug(
`[primeSkillFiles] All ${sessionIds.size} session(s) active for skill "${skill.name}", reusing ${files.length} files`,
`[primeSkillFiles] All ${refsBySession.size} session(s) active for skill "${skill.name}", reusing ${files.length} files`,
);
return { session_id: files[0].session_id, files };
return { storage_session_id: files[0].storage_session_id, files };
}
}
} catch {
@ -183,7 +207,13 @@ export async function primeSkillFiles(
const result = await batchUploadCodeEnvFiles({
req,
files: filesToUpload,
entity_id: entityId,
/* Resource identity for codeapi's sessionKey: skill files share
* cross-user-within-tenant under `<tenant>:skill:<id>:v:<version>`.
* Bumping `skill.version` on edit naturally invalidates the prior
* cache entry under the new sessionKey. */
kind: 'skill',
id: entityId,
version: skill.version,
/* Skill files are infrastructure: SKILL.md + bundled scripts/schemas/
* docs that the agent reads but should never edit. Tag the upload as
* read-only so codeapi seals the inputs (chmod 444 in-sandbox) and
@ -194,15 +224,20 @@ export async function primeSkillFiles(
read_only: true,
});
// Exclude SKILL.md from the returned files array — it is uploaded to disk
// for bash access but has no codeEnvIdentifier (cannot be cached). Omitting
// it here keeps the fresh-upload and cache-hit code paths consistent.
const files = result.files
// for bash access but has no codeEnvRef (cannot be cached). Omitting it
// here keeps the fresh-upload and cache-hit code paths consistent.
const files: PrimeSkillFilesResult['files'] = result.files
.filter((f) => !f.filename.endsWith('/SKILL.md'))
.map((f) => ({
id: f.fileId,
session_id: result.session_id,
/* `resource_id` is the skill `_id` (the entity codeapi scopes
* the sessionKey on). Distinct from `id` (the per-file storage
* uuid) — both are required on the request. */
resource_id: entityId,
storage_session_id: result.storage_session_id,
name: f.filename,
entity_id: entityId,
kind: 'skill',
version: skill.version,
}));
// Treat partial upload failures as a priming failure — missing bundled
@ -220,39 +255,48 @@ export async function primeSkillFiles(
}
/**
* Persist codeEnvIdentifiers on skill files. Awaited (not
* fire-and-forget) so the next prime — which can start within
* milliseconds when many users hit the same skill concurrently —
* sees the cache pointer instead of racing the read against an
* in-flight write. Without the await, a fire-and-forget under
* concurrency stays in cache-miss steady-state for the duration
* of the burst (each user's prime reads stale, re-uploads, then
* fires its own forget that the next user also misses). Latency
* cost is ~10–50ms on the prime that does the upload; subsequent
* primes save an entire batch upload. Failures don't fail the
* prime — the file refs returned to the caller are still valid.
* Persist codeEnvRefs on skill files. Awaited (not fire-and-forget)
* so the next prime — which can start within milliseconds when
* many users hit the same skill concurrently — sees the cache
* pointer instead of racing the read against an in-flight write.
* Without the await, a fire-and-forget under concurrency stays in
* cache-miss steady-state for the duration of the burst (each
* user's prime reads stale, re-uploads, then fires its own forget
* that the next user also misses). Latency cost is ~10–50ms on
* the prime that does the upload; subsequent primes save an entire
* batch upload. Failures don't fail the prime — the file refs
* returned to the caller are still valid.
*/
if (updateSkillFileCodeEnvIds) {
const updates = result.files
.filter((f) => !f.filename.endsWith('/SKILL.md'))
.map((f) => ({
skillId: skill._id,
relativePath: f.filename.slice(f.filename.indexOf('/') + 1),
codeEnvIdentifier: `${result.session_id}/${f.fileId}?entity_id=${entityId}`,
}));
.map((f) => {
const ref: CodeEnvRef = {
kind: 'skill',
id: entityId,
storage_session_id: result.storage_session_id,
file_id: f.fileId,
version: skill.version,
};
return {
skillId: skill._id,
relativePath: f.filename.slice(f.filename.indexOf('/') + 1),
codeEnvRef: ref,
};
});
if (updates.length > 0) {
try {
await updateSkillFileCodeEnvIds(updates);
} catch (err: unknown) {
logger.warn(
'[primeSkillFiles] Failed to persist codeEnvIdentifiers:',
'[primeSkillFiles] Failed to persist codeEnvRefs:',
err instanceof Error ? err.message : err,
);
}
}
}
return { session_id: result.session_id, files };
return { storage_session_id: result.storage_session_id, files };
} catch (error) {
logger.error(
`[primeSkillFiles] Batch upload failed for skill "${skill.name}":`,
@ -274,7 +318,13 @@ export interface PrimeInvokedSkillsDeps {
getSkillByName: (
name: string,
accessibleIds: Types.ObjectId[],
) => Promise<{ body: string; name: string; _id: Types.ObjectId; fileCount: number } | null>;
) => Promise<{
body: string;
name: string;
_id: Types.ObjectId;
version: number;
fileCount: number;
} | null>;
listSkillFiles: (skillId: Types.ObjectId | string) => Promise<SkillFileRecord[]>;
getStrategyFunctions: PrimeSkillFilesParams['getStrategyFunctions'];
batchUploadCodeEnvFiles: PrimeSkillFilesParams['batchUploadCodeEnvFiles'];
@ -324,6 +374,7 @@ export async function primeInvokedSkills(
body: string;
name: string;
_id: Types.ObjectId;
version: number;
fileCount: number;
}> = [];
for (const r of resolveResults) {
@ -353,23 +404,24 @@ export async function primeInvokedSkills(
// ALL distinct sessions for freshness. If all are active, return cached
// references with zero re-uploads. If any expired, re-upload everything.
if (deps.getSessionInfo && deps.checkIfActive) {
const allFiles = fileListResults.flatMap((r) => r.files);
const allFilesWithIds = allFiles.filter((f) => f.codeEnvIdentifier);
const allResolved = fileListResults.flatMap((r) =>
r.files.map((f) => ({ skillName: r.skill.name, file: f, ref: f.codeEnvRef })),
);
const resolvedWithRef = allResolved.filter((x) => x.ref !== undefined);
// Only use cache when ALL files have identifiers (no partial persistence)
if (allFilesWithIds.length > 0 && allFilesWithIds.length === allFiles.length) {
const sessionIds = new Set(
allFilesWithIds.map((f) => f.codeEnvIdentifier!.split('?')[0].split('/')[0]),
);
// Only use cache when ALL files have refs (no partial persistence)
if (resolvedWithRef.length > 0 && resolvedWithRef.length === allResolved.length) {
const refsBySession = new Map<string, CodeEnvRef>();
for (const { ref } of resolvedWithRef) {
if (ref && !refsBySession.has(ref.storage_session_id)) {
refsBySession.set(ref.storage_session_id, ref);
}
}
const checkResults = await Promise.all(
Array.from(sessionIds).map(async (sid) => {
const representative = allFilesWithIds.find((f) =>
f.codeEnvIdentifier!.startsWith(`${sid}/`),
);
if (!representative) return true;
Array.from(refsBySession.values()).map(async (ref) => {
try {
const lastModified = await deps.getSessionInfo?.(representative.codeEnvIdentifier!);
const lastModified = await deps.getSessionInfo?.(ref);
return !!(lastModified && deps.checkIfActive?.(lastModified));
} catch {
return false;
@ -379,30 +431,33 @@ export async function primeInvokedSkills(
const allActive = checkResults.every(Boolean);
if (allActive) {
const cachedFiles = fileListResults.flatMap((r) =>
r.files
.filter((f) => f.codeEnvIdentifier)
.map((f) => {
const identifier = f.codeEnvIdentifier as string;
const [sid, fid] = identifier.split('?')[0].split('/');
const entity_id = parseEntityIdFromCodeEnvIdentifier(identifier);
return {
id: fid,
name: `${r.skill.name}/${f.relativePath}`,
session_id: sid,
...(entity_id != null ? { entity_id } : {}),
};
}),
);
/* `id` is the STORAGE file_id (the per-file uuid the
* file_server registered the upload under); `resource_id`
* is the entity that owns the storage session — the
* skill's `_id` here. codeapi's auth layer needs both:
* `id` for the upload-existence check, `resource_id` for
* sessionKey re-derivation (`<tenant>:skill:<resource_id>:v:<version>`).
* Conflating them sent the storage nanoid through the
* sessionKey switch and 403'd every shared-kind /exec. */
const cachedFiles = resolvedWithRef.map(({ skillName, file, ref }) => ({
id: ref!.file_id,
resource_id: ref!.id,
name: `${skillName}/${file.relativePath}`,
storage_session_id: ref!.storage_session_id,
kind: ref!.kind,
...(ref!.kind === 'skill' ? { version: ref!.version } : {}),
}));
if (cachedFiles.length > 0) {
logger.debug(
`[primeInvokedSkills] All ${sessionIds.size} session(s) active, reusing ${cachedFiles.length} cached files`,
`[primeInvokedSkills] All ${refsBySession.size} session(s) active, reusing ${cachedFiles.length} cached files`,
);
sessions = new Map();
// session_id is a representative value. ToolNode uses per-file
// session_id from the files array (file.session_id ?? codeSession.session_id).
/* `session_id` at the top of CodeSessionContext is the
* (representative) execution session — ToolNode reads it
* for continuity. Per-file storage is on each
* `files[i].storage_session_id`. */
sessions.set(Constants.EXECUTE_CODE, {
session_id: cachedFiles[0].session_id,
session_id: cachedFiles[0].storage_session_id,
files: cachedFiles,
lastUpdated: Date.now(),
} satisfies CodeSessionContext);
@ -412,14 +467,18 @@ export async function primeInvokedSkills(
}
}
// Per-skill upload: each skill gets its own session with entity_id=skillId.
// primeSkillFiles handles freshness caching per-skill, so only expired
// skills re-upload. The code env handles mixed session_ids natively.
// Per-skill upload: each skill gets its own storage session keyed
// by `(kind: 'skill', id: skillId, version: skill.version)`.
// primeSkillFiles handles freshness caching per-skill, so only
// expired skills re-upload. CodeAPI handles mixed
// storage_session_ids natively.
const allPrimedFiles: Array<{
id: string;
resource_id: string;
name: string;
session_id: string;
entity_id?: string;
storage_session_id: string;
kind: 'skill';
version: number;
}> = [];
const primeResults = await Promise.allSettled(
fileListResults.map(async ({ skill, files }) => {
@ -441,9 +500,14 @@ export async function primeInvokedSkills(
for (const f of r.value.result.files) {
allPrimedFiles.push({
id: f.id,
/* `resource_id` is the skill's `_id` — drives codeapi's
* sessionKey re-derivation. See cachedFiles above for the
* full id-vs-resource_id rationale. */
resource_id: r.value.skill._id.toString(),
name: f.name,
session_id: f.session_id,
...(f.entity_id != null ? { entity_id: f.entity_id } : {}),
storage_session_id: f.storage_session_id,
kind: 'skill',
version: r.value.skill.version,
});
}
} else if (r.status === 'rejected') {
@ -453,11 +517,11 @@ export async function primeInvokedSkills(
if (allPrimedFiles.length > 0) {
sessions = new Map();
// session_id is a representative value (first skill's session). ToolNode
// uses per-file session_id from the files array (file.session_id ??
// codeSession.session_id), so mixed sessions work correctly.
/* `session_id` at the top of CodeSessionContext is the
* (representative) execution session. Per-file storage is on
* each file's `storage_session_id`. */
sessions.set(Constants.EXECUTE_CODE, {
session_id: allPrimedFiles[0].session_id,
session_id: allPrimedFiles[0].storage_session_id,
files: allPrimedFiles,
lastUpdated: Date.now(),
} satisfies CodeSessionContext);

View file

@ -0,0 +1,116 @@
import FormData from 'form-data';
import { appendCodeEnvFileIdentity, buildCodeEnvDownloadQuery } from './identity';
describe('appendCodeEnvFileIdentity', () => {
/* Validation rules mirror codeapi's `parseUploadSessionKeyInput`
* server-side validator. Asserting client-side gives bad callers a
* synchronous failure with file path + line number, vs. round-tripping
* a 400 from a multipart POST. */
it('appends kind/id/version on the multipart form for skill uploads', () => {
const form = new FormData();
appendCodeEnvFileIdentity(form, { kind: 'skill', id: 'skill-42', version: 7 });
/* Spy on the form internally — `getBuffer()` chokes on stream
* entries other tests append, but the form has only the three
* scalar fields here so dump-and-grep is safe. */
const body = form.getBuffer().toString();
expect(body).toContain('name="kind"');
expect(body).toContain('skill');
expect(body).toContain('name="id"');
expect(body).toContain('skill-42');
expect(body).toContain('name="version"');
expect(body).toContain('7');
});
it('omits version on the multipart form for non-skill kinds', () => {
const form = new FormData();
appendCodeEnvFileIdentity(form, { kind: 'agent', id: 'agent-9' });
expect(form.getBuffer().toString()).not.toContain('name="version"');
});
it('rejects unknown kinds before mutating the form', () => {
const form = new FormData();
expect(() =>
appendCodeEnvFileIdentity(form, {
kind: 'system' as 'user',
id: 'x',
}),
).toThrow(/invalid kind/);
/* form-data emits multipart boundaries even on an empty form, so
* "did we append" is a substring check, not buffer equality. */
expect(form.getBuffer().toString()).not.toContain('name="kind"');
expect(form.getBuffer().toString()).not.toContain('name="id"');
});
it('rejects skill identity without a version', () => {
expect(() =>
appendCodeEnvFileIdentity(new FormData(), { kind: 'skill', id: 'skill-42' }),
).toThrow(/skill.*version/);
});
it('rejects version on non-skill kinds', () => {
expect(() =>
appendCodeEnvFileIdentity(new FormData(), {
kind: 'agent',
id: 'agent-9',
version: 3,
}),
).toThrow(/version.*skill/);
});
it('rejects missing id', () => {
expect(() => appendCodeEnvFileIdentity(new FormData(), { kind: 'user', id: '' })).toThrow(
/missing id/,
);
});
});
describe('buildCodeEnvDownloadQuery', () => {
it('builds the canonical user-private query string', () => {
expect(buildCodeEnvDownloadQuery({ kind: 'user', id: 'user-123' })).toBe(
'?kind=user&id=user-123',
);
});
it('appends version when kind is skill', () => {
expect(buildCodeEnvDownloadQuery({ kind: 'skill', id: 'skill-abc', version: 7 })).toBe(
'?kind=skill&id=skill-abc&version=7',
);
});
it('omits version on agent kind', () => {
expect(buildCodeEnvDownloadQuery({ kind: 'agent', id: 'agent-xyz' })).toBe(
'?kind=agent&id=agent-xyz',
);
});
it('URL-encodes ids that contain special characters', () => {
/* `id` shouldn't normally contain unsafe chars (it's a uuid or
* mongo ObjectId), but the URLSearchParams plumbing handles it
* uniformly so a future call site that passes through a
* user-supplied identifier doesn't accidentally produce a
* malformed URL. */
expect(buildCodeEnvDownloadQuery({ kind: 'user', id: 'a b/c?d' })).toMatch(
/\?kind=user&id=a\+b%2Fc%3Fd/,
);
});
it('throws on unknown kind', () => {
expect(() => buildCodeEnvDownloadQuery({ kind: 'system' as 'user', id: 'x' })).toThrow(
/invalid kind/,
);
});
it('throws on skill missing version', () => {
expect(() => buildCodeEnvDownloadQuery({ kind: 'skill', id: 'skill-42' })).toThrow(
/skill.*version/,
);
});
it('throws on version with non-skill kind', () => {
expect(() => buildCodeEnvDownloadQuery({ kind: 'agent', id: 'agent-9', version: 3 })).toThrow(
/version.*skill/,
);
});
});

View file

@ -0,0 +1,78 @@
import { CODE_ENV_KINDS } from 'librechat-data-provider';
import type { CodeEnvKind } from 'librechat-data-provider';
import type FormData from 'form-data';
/**
* Resource identity required by codeapi's sessionKey resolver. The
* shape is symmetric across the upload form fields and the URL query
* params on download/freshness routes — codeapi normalizes both into
* the same `parseUploadSessionKeyInput`. Validation rules (closed
* kind set, `version` required for `'skill'` and forbidden otherwise)
* mirror codeapi's validator so a bad caller fails fast on the client
* instead of round-tripping a 400. See codeapi #1455 / Phase C.
*
* `id` is sessionKey-meaningful for `'skill'` / `'agent'` and
* informational-only for `'user'` (codeapi resolves user identity
* from auth context). It's required uniformly here for shape
* consistency with the runtime validator.
*/
export interface CodeEnvIdentity {
kind: CodeEnvKind;
id: string;
/** Required when `kind === 'skill'`; forbidden otherwise. */
version?: number;
}
const VALID_KINDS = new Set<string>(CODE_ENV_KINDS);
const validateIdentity = (identity: CodeEnvIdentity, callerLabel: string): void => {
const { kind, id, version } = identity;
if (!kind || !VALID_KINDS.has(kind)) {
throw new Error(`${callerLabel}: invalid kind "${kind}"`);
}
if (!id) {
throw new Error(`${callerLabel}: missing id for kind "${kind}"`);
}
if (kind === 'skill' && version == null) {
throw new Error(`${callerLabel}: kind "skill" requires a numeric version`);
}
if (kind !== 'skill' && version != null) {
throw new Error(`${callerLabel}: version is only valid for kind "skill"`);
}
};
/**
* Append `kind`/`id`/`version?` form fields to a multipart upload.
* Used by `uploadCodeEnvFile` and `batchUploadCodeEnvFiles` so codeapi
* can route the upload to the correct sessionKey bucket
* (`<tenant>:<kind>:<id>[:v:<version>]` for shared kinds,
* `<tenant>:user:<authContext.userId>` for `'user'`).
*
* Mutates the form in place and throws synchronously on bad input.
*/
export function appendCodeEnvFileIdentity(form: FormData, identity: CodeEnvIdentity): void {
validateIdentity(identity, 'appendCodeEnvFileIdentity');
form.append('kind', identity.kind);
form.append('id', identity.id);
if (identity.version != null) {
form.append('version', String(identity.version));
}
}
/**
* Build the `?kind=...&id=...&version=...` query string codeapi's
* `sessionAuth` middleware requires on `/download/<session>/<file>`
* and `/sessions/<session>/objects/<file>` URLs. Without these,
* codeapi 400s with "kind must be one of: skill, agent, user" before
* serving the file.
*
* Returns a string with leading `?`; concatenate onto a path.
*/
export function buildCodeEnvDownloadQuery(identity: CodeEnvIdentity): string {
validateIdentity(identity, 'buildCodeEnvDownloadQuery');
const params = new URLSearchParams({ kind: identity.kind, id: identity.id });
if (identity.version != null) {
params.set('version', String(identity.version));
}
return `?${params.toString()}`;
}

View file

@ -1,3 +1,4 @@
export * from './classify';
export * from './extract';
export * from './form';
export * from './identity';

View file

@ -16,7 +16,7 @@ function categorizeFile(
type?: string | null;
source?: string;
embedded?: boolean;
metadata?: { fileIdentifier?: string };
metadata?: { fileIdentifier?: string; codeEnvRef?: unknown };
},
isBedrock: boolean,
mergedFileConfig: FileConfig | undefined,
@ -26,7 +26,11 @@ function categorizeFile(
if (source === FileSources.text) {
return 'skipped';
}
if (file.embedded === true || file.metadata?.fileIdentifier != null) {
if (
file.embedded === true ||
file.metadata?.codeEnvRef != null ||
file.metadata?.fileIdentifier != null
) {
return 'skipped';
}

View file

@ -1,7 +1,37 @@
import { Buffer } from 'buffer';
import axios from 'axios';
import { logger } from '@librechat/data-schemas';
import type { AxiosInstance, AxiosProxyConfig, AxiosError } from 'axios';
/**
* Render `error.response.data` as a small, log-safe value. Axios surfaces
* the response body in whichever native shape the request asked for, so
* `responseType: 'arraybuffer'` yields a `Buffer` (raw bytes — JSON-
* serializes as `{type: 'Buffer', data: [123, 34, ...]}`, ~4 chars per
* byte) and `responseType: 'stream'` yields a `Readable` (whose internal
* state JSON-serializes the full readableState ring buffer + socket
* fields, easily megabytes per error). Both are useless for diagnostics
* and drown the log line. Decode small buffers as UTF-8 (truncated) and
* stub streams entirely.
*/
const renderResponseData = (data: unknown): unknown => {
if (data == null) return data;
if (Buffer.isBuffer(data)) {
const MAX = 2048;
const text = data.subarray(0, MAX).toString('utf8');
return data.length > MAX ? `${text}…[+${data.length - MAX} bytes]` : text;
}
// Readable streams (responseType: 'stream') and other piped sources.
if (
typeof data === 'object' &&
data !== null &&
typeof (data as { pipe?: unknown }).pipe === 'function'
) {
return '[stream]';
}
return data;
};
/**
* Logs Axios errors based on the error object and a custom message.
* @param options - The options object.
@ -33,7 +63,7 @@ export const logAxiosError = ({
logger.error(logMessage, {
status,
headers,
data,
data: renderResponseData(data),
stack,
});
} else if (axios.isAxiosError(error) && error.request) {