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Claude Skills are markdown + scripts loaded into Claude Code; scanned with the same pipeline.
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
8 critical findings reported by cisco-skill-scanner. The composite score alone does not reflect this — read the per-scanner reports below.
Claude Skills install to a single target, no runtime picker.
nerlo install -- leaf
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- leaf ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
5 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
0 findings · 2.1s
v2.0.11
63 findings · 40.4s
v0.3.74
26 findings · 35.6s
v0.1.0
0 findings · 16.0s
v0.1.0
0 findings · 16.0s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.2s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 2.1s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 22, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 89 findings across every scanner that examined this package. None of the 8 findings rated critical by their scanner were dismissed.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
19 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-GHA-IMMUTABLE-001 · Files: .github/workflows/tend-notifications.yaml, .github/workflows/tend-review-runs.yaml, .github/workflows/ci.yaml and 7 more · reported by agent-audit-kit
10 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: AAK-SECRET-004, DATA_EXFIL_NETWORK_REQUESTS · Files: tests/test_interact.py, docs/session.js, /repo/tests/test_interact.py · reported by agent-audit-kit, cisco-skill-scanner
4 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: AAK-AGENT-002, TOOL_ABUSE_UNDECLARED_NETWORK · Files: AGENTS.md, CLAUDE.md, /repo/repo/AGENTS.md and 1 more · reported by agent-audit-kit, cisco-skill-scanner
4 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE · Files: /repo/tests/SKILL.md, /repo/examples/SKILL.md · reported by cisco-skill-scanner
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
12 DATA_EXFIL_JS_NETWORK
Files: /repo/plugins/leaf/skills/leaf/assets/leaf.js · reported by cisco-skill-scanner
6 COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR
Files: /repo/plugins/leaf/skills/leaf/bundled/vendor/mermaid.min.js · reported by cisco-skill-scanner
6 HIDDEN_DATA_FILE
Files: /repo/.config/wt.toml, /repo/plugins/leaf/.codex-plugin/plugin.json, /repo/.agents/plugins/marketplace.json and 3 more · reported by cisco-skill-scanner
6 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/ui-sweep/SKILL.md, /repo/.claude/skills/running-tend/SKILL.md, /repo/plugins/leaf/skills/leaf/SKILL.md and 3 more · reported by cisco-skill-scanner
6 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/plugins/leaf/skills/leaf/scripts/interact.py · reported by cisco-skill-scanner
3
Critical command injection and resource abuse risks
The artifact contains critical command injection vulnerabilities in JavaScript files (`highlight.esm.js`, `mermaid.min.js`), which could enable shell execution. High-severity resource abuse vulnerabilities (infinite loops) are present in `interact.py`, potentially leading to denial of service. Additionally, a high-severity secret exposure is noted in `keydocs.py`, and network egress capabilities are present in various JavaScript files. These findings indicate capabilities for shell execution, resource exhaustion, credential access, and network communication.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
Files: /repo/SKILL.md, /repo/notes/SKILL.md, /repo/plugins/leaf/skills/leaf/references/SKILL.md · reported by cisco-skill-scanner
2 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json, .agents/plugins/marketplace.json · reported by agent-audit-kit
2 COMMAND_INJECTION_EVAL
Files: /repo/plugins/leaf/skills/leaf/assets/vendor/highlight.esm.js · reported by cisco-skill-scanner
2 LOW_ANALYZABILITY
Files: /repo/plugins/leaf/skills/leaf, /repo · reported by cisco-skill-scanner
1 AAK-SECRET-004
Files: scripts/keydocs.py · reported by agent-audit-kit
1 ALLOWED_TOOLS_BASH_VIOLATION
Files: /repo/plugins/leaf/skills/leaf/repo/plugins/leaf/skills/leaf/SKILL.md · reported by cisco-skill-scanner
1 ALLOWED_TOOLS_GLOB_VIOLATION
Files: /repo/plugins/leaf/skills/leaf/repo/plugins/leaf/skills/leaf/SKILL.md · reported by cisco-skill-scanner
1 ALLOWED_TOOLS_GREP_VIOLATION
Files: /repo/plugins/leaf/skills/leaf/repo/plugins/leaf/skills/leaf/SKILL.md · reported by cisco-skill-scanner
1 ALLOWED_TOOLS_READ_VIOLATION
Files: /repo/plugins/leaf/skills/leaf/repo/plugins/leaf/skills/leaf/SKILL.md · reported by cisco-skill-scanner
1 ALLOWED_TOOLS_WRITE_VIOLATION
Files: /repo/plugins/leaf/skills/leaf/repo/plugins/leaf/skills/leaf/SKILL.md · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner