Claude Code, Skill
skills
Agent Skills are folders of instructions, scripts, and resources - typically encoding procedural knowledge - that agents can discover and use to do things more accurately and efficiently.
Compatibility: Not stated.
Grade C
One Medium finding. Read the report before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
SECRETS_PATH_CREDENTIAL
Why this grade
- SECRETS_PATH_CREDENTIAL Medium
Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).
AGENTS.md, line 137
- Use `git agent-commit` (not `git commit`) to create signed commits; this alias uses the dedicated agent signing key at `~/.ssh/id_ed25519_agent_signing`.
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Concern
can delete files.
PERMISSION_DELETE_FILES
scripts/build_review_packet.py, line 44
return subprocess.run( # noqa: S603
scripts/check_markdown_render.py, line 160
return subprocess.run( # noqa: S603
scripts/check_markdown_render.py, line 226
result = subprocess.run(
Show more
scripts/check_markdown_render.py, line 496
staged = subprocess.run( # noqa: S603
scripts/check_markdown_render.py, line 530
result = subprocess.run(argv, cwd=workdir, capture_output=True, text=True, check=False) # noqa: S603
scripts/render_dot.py, line 72
subprocess.run( # noqa: S603
scripts/render_dot.py, line 81
subprocess.run( # noqa: S603
skills/agent-bridge/scripts/agent_bridge.py, line 185
proc = subprocess.run(
skills/interactive-notebook-demo/references/cell-patterns.md, line 168
shutil.rmtree(tmp_dir, ignore_errors=True)
skills/show-me/scripts/server.cjs, line 327
if (fs.existsSync(eventsFile)) fs.unlinkSync(eventsFile);
skills/show-me/scripts/server.cjs, line 341
if (fs.existsSync(infoFile)) fs.unlinkSync(infoFile);
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
skills/api-design/references/fastapi-practices.md, line 74
result = requests.get(url) # blocking HTTP call in async context
skills/interactive-notebook-demo/references/cell-patterns.md, line 143
with socket.create_connection((host, port), timeout):
skills/sdd/references/sdd-schema.md, line 88
command: curl -s http://localhost:8000/openapi.json
Show more
skills/sdd/references/sdd-schema.md, line 92
# Spring Boot (Java): curl http://localhost:8080/v3/api-docs
skills/show-me/scripts/helper.js, line 7
ws = new WebSocket(WS_URL)
skills/deep-research/SKILL.md, line 104
| 4 | **Expand/Resolve** | targeted | re-review new material only | Triggered by the review valve. Targeted re-fetch (contested claim) or a new dimension (coverage gap). **S
skills/python-notebooks-async/SKILL.md, line 60
Synchronous calls like `requests.get()` block the event loop, starving concurrent tasks.
skills/python/references/python-testing.md, line 20
patch("requests.post", ...)
skills/python/references/python-testing.md, line 23
patch("mymodule.client.requests.post", ...)
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV
.gitignore, line 27
*.env
.gitignore, line 30
!.env.example
AGENTS.md, line 137
- Use `git agent-commit` (not `git commit`) to create signed commits; this alias uses the dedicated agent signing key at `~/.ssh/id_ed25519_agent_signing`.
Show more
.gitignore, line 31
!.env.sample
.ruff.toml, line 14
".env",
AGENTS.md, line 67
Otherwise pytest walks the repo root and trips on sandbox-denied files such as `.env`.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
skills-mcp/uv.lock, line 1
version = 1
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 3cbf731cc0e2. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 3cbf731cc0e29f4268f6c561b4597725ee3de4bc
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