* feat(skills)!: promote Skills Repository out of experimental
The registry-backed Skills Repository (crewai skill create/publish/
install/list, @org/name refs, global cache) is now mainline:
- CLI: `crewai skill ...` is a top-level group; the CREWAI_EXPERIMENTAL
gate and the now-empty `crewai experimental` group are removed.
- Runtime: registry.py, cache.py, and events.py move from
crewai.experimental.skills into crewai.skills next to the loader;
the require_experimental_skills() gate is gone.
crewai.experimental.skills remains as a deprecated re-export shim.
- Docs: concepts/skills now leads with the CLI workflow and documents
the create -> publish -> install lifecycle.
Linear: n/a (requested promotion)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(skills): org-scoped publish only + docs in all languages
Skills are always scoped to the publishing organization, like tools:
drop the --public/--private flags from `crewai skill publish` and
always send is_public=False to the registry. CLI tests assert the flag
is rejected and the API never receives a public publish.
Translate the new CLI-first Quick Start and the create -> publish ->
install lifecycle section into ar, pt-BR, and ko concepts/skills docs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(skills): address review comments on the promotion PR
- Back-compat shim now aliases the old submodules in sys.modules so
`crewai.experimental.skills.registry/cache/events` imports (and patch
targets) resolve to the real crewai.skills modules, not just the
package-root re-exports.
- `crewai skill publish` actually enforces the git-state check that
--force claims to skip: unsynced repos block publishing (mirroring
tool publish); standalone skill dirs outside any git repo publish
without a check.
- Explicit UTF-8 encoding on SKILL.md and cache-metadata reads/writes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(skills): fail closed when git state cannot be validated on publish
Follow deploy's pattern: construct git.Repository(fetch=False) and only
treat "not a Git repository" as skippable — any other git error
(fetch/auth/misconfiguration) now blocks publish with a --force escape
hatch instead of silently bypassing the sync check.
Also single-style imports in the shim test (CodeQL) with the dotted
shim import covered via importlib.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(skills): fetch before sync check on publish; bump mcp past advisories
Publish now refreshes remote-tracking refs (repository.fetch()) before
is_synced(), so ahead/behind is judged against the actual remote rather
than stale local refs; a failing fetch blocks publish with the --force
escape hatch. Adds a fail-closed test for fetch errors.
Raise mcp to >=1.28.1,<2 (locks 1.28.1): the ~=1.26.0 pin blocked
GHSA-hvrp-rf83-w775 / GHSA-jpw9-pfvf-9f58 (fixed 1.27.2) and
GHSA-vj7q-gjh5-988w (fixed 1.28.1), which were failing pip-audit on
this PR.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Vinicius Brasil <vini@hey.com>
* Fix symlink path traversal in skill archive extraction
`_safe_extractall` (the Python < 3.12 fallback used by `crewai skills`
archive unpacking) validated each member's *name* against the destination
but never validated symlink/hardlink *targets*. A malicious skill tarball
could plant a symlink escaping the destination (e.g. `link -> /home/user/.ssh`)
followed by a regular member written through it (`link/authorized_keys`),
escaping `dest` even though every member name resolves inside it — the
classic symlink-extraction traversal.
The 3.12+ path (`extractall(..., filter="data")`) already blocks this; the
fallback now mirrors it by rejecting absolute link targets and any link
target that resolves outside the destination directory.
Adds regression tests covering absolute and relative escaping symlinks plus
benign in-tree symlinks and ordinary archives.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* Harden skill cache archive extraction
* Reject special skill archive members
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Moves the registry/cache pieces of PR #5867 under crewai.experimental.skills
and the CLI commands under `crewai experimental skill`. The stable local-file
skills feature (loader, parser, validation, models) stays in crewai.skills.
Both entry points now require CREWAI_EXPERIMENTAL=1:
- resolve_registry_ref() calls require_experimental_skills() before resolving
- The `crewai experimental` CLI group raises UsageError when the flag is unset
SkillDownloadStarted/CompletedEvent move out of crewai.events.types.skill_events
into crewai.experimental.skills.events.
* refactor(skills): move 'version' off SkillFrontmatter into metadata
The skill version is now stored as `metadata.version` rather than a
top-level field on `SkillFrontmatter`. A `before` validator lifts any
top-level YAML `version:` into `metadata['version']` so existing SKILL.md
files keep parsing.
* feat: add Skills Repository — registry, cache, CLI, and SDK integration
Adds a Skills Repository feature allowing users to publish, install,
and use skills from the CrewAI registry with @org/skill-name refs.
## What's New
### SDK (lib/crewai/)
- SkillFrontmatter: added optional 'version' field (backward compatible)
- SkillCacheManager: manages ~/.crewai/skills/{org}/{name}/ with
.crewai_meta.json tracking, path-traversal-safe tar extraction
- SkillRegistry: parse @org/skill-name refs, local-first resolution
(./skills/ > cache > download), interactive prompt on first use,
CI-mode guard (CREWAI_NONINTERACTIVE/CI env vars)
- Agent.skills and Crew.skills widened to accept str refs (@org/name)
- set_skills() resolves registry refs with org-prefixed dedup keys
- New events: SkillDownloadStartedEvent, SkillDownloadCompletedEvent
### CLI (lib/cli/)
- crewai skill create <name> — context-aware (project vs standalone)
- crewai skill install @org/name — downloads to ./skills/ or cache
- crewai skill publish — ZIP + upload to org registry
- crewai skill list — show installed skills
### PlusAPI (lib/crewai-core/)
- Added SKILLS_RESOURCE, get_skill(), publish_skill(), list_skills()
### Scaffolding
- crew and flow templates now include skills/ directory
### Tests
- 91 SDK skill tests + 15 CLI skill tests, all passing
* fix: address all CI failures and CodeRabbit review comments
Lint:
- Remove unused imports (click, pytest, json)
- Replace try-except-pass with logging (S110)
- Fix unprotected zipfile.extractall (S202)
Security:
- Path traversal: startswith → is_relative_to for tar extraction
- Add path traversal protection to ZIP extraction via _safe_extract_zip
- Both cache.py and CLI main.py hardened
Type checker:
- Fix import path: crewai.events.event_bus (not crewai_event_bus)
- Remove unused type: ignore comments
- Fix type mismatches in set_skills() variable types
Code quality:
- Fix f-string interpolation in SkillNotCachedError
- Use ValidationError instead of Exception in test
* style: ruff format + autofix remaining lint errors
* refactor: reuse SDK parser and SkillCacheManager in CLI
- _parse_frontmatter() now delegates to crewai.skills.parser.parse_frontmatter
when available, with a minimal fallback for CLI-only installs
- install() global cache path now reuses SkillCacheManager.store() instead
of duplicating metadata writing logic
* refactor: add _print_current_organization to SkillCommand (matches ToolCommand pattern)
* fix: write .crewai_meta.json in fallback install path
CodeRabbit caught that the ImportError fallback in install() didn't write
cache metadata, making skills invisible to 'crewai skill list'.
* fix: tighten @org/name ref validation to prevent path traversal
Reject refs with multiple slashes (@org/a/b), dot segments (@../skill),
or leading dots in org/name. Applied to both CLI install() and SDK
parse_registry_ref() so the contract is enforced consistently.
* fix: update test assertions to match tightened error messages
* fix: align OSS client with AMP API contract
- download_skill(): fetch download_url (presigned URL) instead of
expecting inline base64. Falls back to 'file' field for compat.
- Read 'latest_version' field, fall back to 'version'
- Same fixes applied to CLI install() command
* fix: publish as tar.gz (matches AMP content_type validation) + add zip fallback to SDK cache
CLI publish:
- _build_skill_zip → _build_skill_tarball (tar.gz format)
- Content type: application/x-gzip (matches SkillVersion validation)
SDK cache:
- store() now tries tar.gz first, falls back to zip extraction
- Added _safe_extract_zip for path-traversal-safe zip handling
- Both formats work for download/install regardless of server format
---------
Co-authored-by: João Moura <joaomdmoura@gmail.com>
