Claude Code, Skill
Agent Skills
Agent Skills has PlugVet grade B (Minor notes only) from our automated hygiene checks. Finding: contains a call that can delete files. This is a hygiene check, not a security audit or a guarantee. Graded on 16/10/2026.
Production-grade engineering skills for AI coding agents.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit aeac41d4d005, unchanged since the check below.
PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
scripts/floor-guard-reference-test.js, line 57
for (const dir of sandboxes) fs.rmSync(dir, { recursive: true, force: true }); - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
hooks/sdd-cache-post.sh, line 17
command -v curl >/dev/null 2>&1 || exit 0 - SECRETS_PATH_DOTENV Low
Mentions a .env file.
skills/ci-cd-and-automation/SKILL.md, line 274
.env.example → Committed (template for developers) - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
skills/security-and-hardening/references/hardening-patterns.md, line 36
secret: process.env.SESSION_SECRET, // From environment, not code
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/floor-guard-reference-test.js, line 57
for (const dir of sandboxes) fs.rmSync(dir, { recursive: true, force: true });
scripts/floor-guard-reference-test.js, line 58
if (scratch) fs.rmSync(scratch, { recursive: true, force: true });
scripts/floor-guard-reference-test.js, line 126
fs.unlinkSync(path.join(root, 'app.test.js'));
Show more
scripts/floor-guard-reference-test.js, line 129
fs.unlinkSync(path.join(root, 'app.test.js'));
scripts/run-evals-test.js, line 114
fs.rmSync(root, { recursive: true, force: true });
scripts/run-evals-test.js, line 132
fs.rmSync(root, { recursive: true, force: true });
scripts/run-evals-test.js, line 153
fs.rmSync(root, { recursive: true, force: true });
scripts/run-evals-test.js, line 203
fs.rmSync(dir, { recursive: true, force: true });
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
hooks/sdd-cache-post.sh, line 17
command -v curl >/dev/null 2>&1 || exit 0
hooks/sdd-cache-post.sh, line 82
HEAD_OUT=$(curl -sI -L --max-time 5 "$URL" 2>/dev/null | tr -d '\r' || true)
hooks/sdd-cache-pre.sh, line 22
command -v curl >/dev/null 2>&1 || exit 0
Show more
hooks/sdd-cache-pre.sh, line 71
STATUS=$(curl -sI -o /dev/null -w "%{http_code}" \
hooks/sdd-cache-test.sh, line 4
# No real network traffic: a deterministic curl stub is placed first on PATH.
hooks/sdd-cache-test.sh, line 26
# ── curl stub ─────────────────────────────────────────────────────────────
hooks/sdd-cache-test.sh, line 31
# Deterministic curl replacement. -w present => status probe (pre hook),
skills/security-and-hardening/references/hardening-patterns.md, line 127
await fetch(req.body.webhookUrl);
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
skills/ci-cd-and-automation/SKILL.md, line 274
.env.example → Committed (template for developers)
skills/ci-cd-and-automation/SKILL.md, line 275
.env → NOT committed (local development)
skills/security-and-hardening/references/hardening-patterns.md, line 36
secret: process.env.SESSION_SECRET, // From environment, not code
Show more
skills/ci-cd-and-automation/SKILL.md, line 276
.env.test → Committed (test environment, no real secrets)
skills/context-engineering/SKILL.md, line 65
- Never commit .env files or secrets
skills/documentation-and-adrs/SKILL.md, line 212
3. Set up environment: `cp .env.example .env`
skills/security-and-hardening/references/hardening-patterns.md, line 117
const API_KEY = process.env.STRIPE_API_KEY;
skills/security-and-hardening/references/hardening-patterns.md, line 276
.env files:
skills/security-and-hardening/references/hardening-patterns.md, line 277
├── .env.example → Committed (template with placeholder values)
skills/security-and-hardening/references/hardening-patterns.md, line 278
├── .env → NOT committed (contains real secrets)
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
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 aeac41d4d005. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: aeac41d4d005999432bb7312f7ff06383a91d59d
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