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Design RESTful APIs following best practices
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.
1 critical finding 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 -- 'fabiocaffarello/quality-cluster (Api Design)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'fabiocaffarello/quality-cluster (Api Design)' ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
6 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
20 findings · 0.9s
v2.0.11
266 findings · 21.2s
v0.3.74
0 findings · 12.8s
v0.1.0
0 findings · 6.2s
v0.1.0
0 findings · 6.2s
vv0.3.2
Incomplete run
0 findings · 0.5s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 1.0s
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 ·!: incompletenerlo-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 286 findings across every scanner that examined this package. None of the 1 finding 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.
14 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: HIDDEN_DATA_FILE · Files: /repo/.context/docs/architecture-runtime.md, /repo/.context/docs/testing-strategy.md, /repo/.context/docs/architecture-layers.md and 11 more · reported by cisco-skill-scanner
9 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: HIDDEN_DATA_FILE, SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE and 1 more · Files: /repo/.context/skills/documentation/SKILL.md, /repo/.context/docs/SKILL.md, /repo/.codex/skills/documentation/SKILL.md and 1 more · 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.
125 HIDDEN_DATA_FILE
Files: /repo/.context/plans/artifacts/block-1-phase-3/trace-pack-20260316-051232/logs/validator.log, /repo/.context/skills/pr-review/SKILL.md, /repo/.context/plans/block-9-phase-3-validation.md and 122 more · reported by cisco-skill-scanner
57 MANIFEST_MISSING_LICENSE
Files: /repo/.codex/skills/code-review/SKILL.md, /repo/.codex/skills/bug-investigation/SKILL.md, /repo/.codex/skills/feature-breakdown/SKILL.md and 54 more · reported by cisco-skill-scanner
46 MANIFEST_INVALID_NAME
Files: /repo/.codex/skills/runtime-validation/SKILL.md, /repo/.claude/skills/runtime-validation/SKILL.md, /repo/.context/skills/runtime-validation/SKILL.md and 43 more · reported by cisco-skill-scanner
12 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/.codex/SKILL.md, /repo/.claude/agents/SKILL.md and 9 more · reported by cisco-skill-scanner
1 agents-no-model-agents/bug-fixer.md
Files: agents/bug-fixer.md
Critical path traversal vulnerability identified
The artifact contains a critical path traversal vulnerability in `/repo/.claude/agents/SKILL.md`, which could allow access to arbitrary file system locations. Additionally, multiple agent files, such as `agents/bug-fixer.md` and `agents/code-reviewer.md`, are flagged for attempting to use tools, indicating potential for unintended execution. These capabilities warrant attention due to the risk of unauthorized file system operations or external interactions.
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.
1 agents-no-model-agents/code-reviewer.md
Files: agents/code-reviewer.md · reported by agentshield
1 agents-no-model-agents/contract-auditor.md
Files: agents/contract-auditor.md · reported by agentshield
1 agents-no-model-agents/documentation-writer.md
Files: agents/documentation-writer.md · reported by agentshield
1 agents-no-model-agents/feature-developer.md
Files: agents/feature-developer.md · reported by agentshield
1 agents-no-model-agents/performance-optimizer.md
Files: agents/performance-optimizer.md · reported by agentshield
1 agents-no-model-agents/raccoon-cli-maintainer.md
Files: agents/raccoon-cli-maintainer.md · reported by agentshield
1 agents-no-model-agents/refactoring-specialist.md
Files: agents/refactoring-specialist.md · reported by agentshield
1 agents-no-model-agents/runtime-topology-auditor.md
Files: agents/runtime-topology-auditor.md · reported by agentshield
1 agents-no-model-agents/test-writer.md
Files: agents/test-writer.md · reported by agentshield
1 agents-no-tools-agents/bug-fixer.md
Files: agents/bug-fixer.md · reported by agentshield
1 agents-no-tools-agents/code-reviewer.md
Files: agents/code-reviewer.md · reported by agentshield
1 agents-no-tools-agents/contract-auditor.md
Files: agents/contract-auditor.md · reported by agentshield
1 agents-no-tools-agents/documentation-writer.md
Files: agents/documentation-writer.md · reported by agentshield
1 agents-no-tools-agents/feature-developer.md
Files: agents/feature-developer.md · reported by agentshield
1 agents-no-tools-agents/performance-optimizer.md
Files: agents/performance-optimizer.md · reported by agentshield
1 agents-no-tools-agents/raccoon-cli-maintainer.md
Files: agents/raccoon-cli-maintainer.md · reported by agentshield
1 agents-no-tools-agents/refactoring-specialist.md
Files: agents/refactoring-specialist.md · reported by agentshield
1 agents-no-tools-agents/runtime-topology-auditor.md
Files: agents/runtime-topology-auditor.md · reported by agentshield
1 agents-no-tools-agents/test-writer.md
Files: agents/test-writer.md · reported by agentshield
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 FILE_MAGIC_MISMATCH
Files: /repo/deploy/nats/nats-server.conf · reported by cisco-skill-scanner
1 PATH_TRAVERSAL_ATTEMPT
Files: /repo/.claude/agents/SKILL.md · reported by cisco-skill-scanner