* feat(security): add plugin content integrity verification (SHA256)
SDK-side follow-up to molecule-core PR #1019 (pinned-ref supply-chain fix).
Changes:
- verify_plugin_sha256(plugin_dir, expected_sha) — content-addressed manifest
hash over sorted (relpath, SHA256(content)) pairs; plugin.yaml excluded
from its own hash to avoid circular dependency
- _walk_files(root) / _sha256_file(path) — internal helpers
- install_plugin() calls verify_sha256 after atomic rename; on mismatch
deletes plugin dir and raises ValueError before setup.sh runs
- PLUGIN_YAML_SCHEMA gains optional sha256 field (64-char lowercase hex)
- validate_manifest() validates sha256 format when present
Tests (12 new):
- sha256_file correctness, walk_files ordering, verify_* (match/mismatch/invalid)
- install_plugin sha256 verified: setup.sh runs
- install_plugin sha256 mismatch: raises ValueError, setup.sh NOT run
- install_plugin no sha256: backward-compat, skips verification
- validate_manifest sha256: valid/invalid/non-hex/absent
Pre-existing: 4 async tests in test_sdk.py fail without pytest-asyncio
(not related to this change).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(tests): add pytest-asyncio markers to async adaptor tests
The 4 tests using async def were failing because pytest-asyncio was not
installed and pytest.ini set asyncio_mode=auto (which requires it). Add
@pytest.mark.asyncio to each async test and add pytest-asyncio as a
test optional dependency so CI gets the right extras when installing.
Fixes: 4 FAILED tests in test_sdk.py
* feat(cli): add verify-sha256 command to molecule_agent
Add `python -m molecule_agent verify-sha256 <plugin-dir>` CLI that
computes the content-integrity SHA256 for a plugin directory (the same
manifest hash that verify_plugin_sha256() uses internally). Plugin authors
can run this to generate the hash to put in plugin.yaml's sha256 field.
Also:
- Re-export verify_plugin_sha256 and compute_plugin_sha256 from the
molecule_agent package root so `from molecule_agent import
compute_plugin_sha256` works.
- Update CLAUDE.md to document the CLI and content integrity flow.
- Write pr-description-draft.md as a backup for when GH_TOKEN recovers.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Molecule AI SDK-Dev <sdk-dev@agents.moleculesai.app>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
