Claude Code, Skill
Agent Dev Kit
Systems engineering for coding agents — layered concerns, measurable gates, and honest boundaries.
Compatibility: Not stated.
Grade D
Two or more Medium findings, or a High. Only try it in a sandbox.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
AGENT_HIDDEN_STEP INSTALL_REMOTE_SCRIPT
Why this grade
- AGENT_HIDDEN_STEP High
Text tells the agent to hide a step or not to tell the user.
plugins/dev-skills/skills/web-browse/SKILL.md, line 13
y web search, use `brave-search` first. Do not tell the user web access is unavailable just because - INSTALL_REMOTE_SCRIPT Medium
Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).
docs/agent-tutor-orchestrator.md, line 230
curl -fsSL https://raw.githubusercontent.com/<org>/agent-dev-kit/main/install-agent-tutor-orchestrator.sh | bash
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.
If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.
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
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 149
git_root_proc = subprocess.run(["git", "-C", str(repo_root), "rev-parse", "--show-toplevel"], capture_output=True, text=True, check=False)
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 159
proc = subprocess.run(["git", "-C", str(repo_root), "worktree", "list", "--porcelain"], capture_output=True, text=True, check=False)
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 166
if subprocess.run(cmd, capture_output=True, text=True, check=False).returncode != 0:
Show more
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 168
if subprocess.run(["git", "-C", str(repo_root), "worktree", "add", str(worktree_dir), branch], capture_output=True, text=True, check=False).returncode != 0:
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 424
ver = subprocess.run([path, "--version"], capture_output=True, text=True, check=False).stdout.strip() if path else ""
overnight-task-kit/skills/multi-harness/scripts/delegate.py, line 584
proc = subprocess.run(cmd, cwd=str(cwd), text=True, capture_output=True, timeout=int(profile["timeout"]), check=False)
plugins/dev-skills/skills/drawio-skill/scripts/autolayout.py, line 154
proc = subprocess.run(
plugins/dev-skills/skills/drawio-skill/scripts/goimports.py, line 82
out = subprocess.run(["tred"], input=dot, capture_output=True,
Install and update
Serious
install fetches a script from the network.
INSTALL_REMOTE_SCRIPT
docs/agent-tutor-orchestrator.md, line 230
curl -fsSL https://raw.githubusercontent.com/<org>/agent-dev-kit/main/install-agent-tutor-orchestrator.sh | bash
docs/agent-tutor-orchestrator.md, line 436
curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash
docs/browserskill.md, line 31
curl -fsSL https://raw.githubusercontent.com/Tencent/BrowserSkill/main/install.sh | sh
Show more
docs/external-deps.md, line 48
Chromium; needs a browser extension | `curl -fsSL https://raw.githubusercontent.com/Tencent/BrowserSkill/main/install.sh \| sh` - see [`browserskill.md`](browserskill
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
bootstrap.sh, line 31
no-mistakes + treehouse: curl installers from upstream docs
evals/cases/06-ssrf-fetch.ts, line 6
const response = await fetch(req.body.url)
evals/cases/11-clean-react-control.tsx, line 9
const response = await fetch(`/api/search?q=${encodeURIComponent(query)}`)
Show more
plugins/dev-skills/skills/drawio-skill/scripts/aiicons.py, line 161
svg = urllib.request.urlopen(url, timeout=15).read()
plugins/dev-skills/skills/drawio-skill/scripts/aiicons.py, line 181
svg = urllib.request.urlopen(url, timeout=15).read()
plugins/dev-skills/skills/explainer-video/scripts/deepgram-voice.mjs, line 67
const res = await fetch(url, {
plugins/dev-skills/skills/explainer-video/scripts/deepgram-voice.mjs, line 78
const res = await fetch(url, {
plugins/dev-skills/skills/voice-studio/SKILL.md, line 47
curl -s http://127.0.0.1:3900/health
plugins/dev-skills/skills/voice-studio/scripts/vsay.sh, line 14
curl -s "http://127.0.0.1:${PORT}/profiles" | jq -r '.[] | " - \(.name) [id: \(.id)]"'
plugins/dev-skills/skills/voice-studio/scripts/vsay.sh, line 78
if ! curl -s --max-time 2 "http://127.0.0.1:${PORT}/health" >/dev/null 2>&1; then
plugins/dev-skills/skills/voice-studio/scripts/vsay.sh, line 110
CURL_OUT=$(curl -s --connect-timeout "$CONNECT_TIMEOUT" --max-time "$SYNTHESIS_TIMEOUT" \
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
plugins/dev-skills/skills/explainer-video/scripts/deepgram-voice.mjs, line 26
if (process.env.DEEPGRAM_API_KEY) return process.env.DEEPGRAM_API_KEY.trim()
.gitignore, line 17
# Secrets / local
.gitignore, line 18
.env
Show more
docs/going-public.md, line 13
- [x] **Secrets** - `gitleaks detect` clean; no tokens, keys, `.env` committed.
docs/jev/README.md, line 52
secrets, `.env` files, vendored trees, or the whole repository.
overnight-task-kit/skills/multi-harness/SKILL.md, line 120
- Do not delegate secrets, credentials, private keys, raw `.env` values, or production tokens.
pi-profiles/remaining-candidates-audit.md, line 150
blocks the call, invalid config reports issues, and a `.env` path can be denied.
plugins/dev-skills/skills/agent-native-scaffold/SKILL.md, line 62
- Ask before you replace numeric prefixes (`00-branding` becomes `branding`). Then update every link in Markdown, `.env`, `REGISTRY.yaml`, and skills.
plugins/dev-skills/skills/agent-native-scaffold/SKILL.md, line 71
1. `stat -c %a` on `.env`, `.p12`, and Digital ID files. The mode must be `600`.
Agent instructions
Serious
instructions tell the agent to hide a step.
AGENT_HIDDEN_STEP
plugins/dev-skills/skills/web-browse/SKILL.md, line 13
y web search, use `brave-search` first. Do not tell the user web access is unavailable just because
Obfuscation
Concern
contains an encoded blob in a file that should be readable.
OBFUSCATION_ENCODED_BLOB
docs/diagrams/stack.svg, line 7
src: url("data:application/font-woff;base64,d09GRgABAAAAABVAAAoAAAAAH9AAAguFAAAAAAAAAAAAAAAAAAAAAAAAAABPUy8yAAAA9AAAAGAAAABgXd/Vo2NtYXAAAAFUAAAAygAAAR4nDSooZ2x5ZgAAAiAAAA3lAAATWG/7
docs/diagrams/stack.svg, line 14
src: url("data:application/font-woff;base64,d09GRgABAAAAABUoAAoAAAAAH5AAAguFAAAAAAAAAAAAAAAAAAAAAAAAAABPUy8yAAAA9AAAAGAAAABgXxHXrmNtYXAAAAFUAAAAygAAAR4nDSooZ2x5ZgAAAiAAAA3LAAATAL74
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 142b504e1d28. requests shell access. The manifest names this permission. install fetches a script from the network. can reach a host that is not written as a fixed address. reads a credential or environment file. instructions tell the agent to hide a step. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: 142b504e1d284109888f4bff2a420ce3b24ad9a6
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