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ALWAYS consult this skill when the user mentions Fastify, builds Node.js APIs, creates routes or plugins, uses TypeBox/typebox for schema validation, configures env-schema, sets up OpenAPI/Swagger, or works on any Fastify-based backend — even for seemingly simple questions. This skill contains critical reference architecture, TypeScript patterns, and production-ready code templates that Claude cannot generate correctly without consulting. Covers: plugin architecture with fp(), decorators, schema validation, project structure, configuration, graceful shutdown, Dockerfile, autoload, Redis integration, Sentry setup. Does NOT cover test code (see fastify-testing) or container infrastructure (see tap-testcontainers). Trigger on ANY mention of: fastify, fastify plugin, route, schema, typebox, decorator, fp(), pino, autoload, close-with-grace, env-schema, @fastify/*, swagger, openapi, Node.js API, REST API, microservice backend, Fastify instance, server.ts, config.ts.
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.
2 critical findings reported by agent-audit-kit. 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 -- 'fgiova/claude-marketplace (fastify-expert)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'fgiova/claude-marketplace (fastify-expert)' ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
4 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.
v2.0.11
49 findings · 9.0s
v0.3.74
25 findings · 1.8s
v0.1.0
0 findings · 4.4s
v0.1.0
0 findings · 4.4s
v1.4.0
None of the entry points this scanner reads were found in this artifact. What each scanner covers
0 findings · 0.3s
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 · 1.1s
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 21, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-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 74 findings across every scanner that examined this package. None of the 2 findings rated critical by their scanner were dismissed.
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.
28 MANIFEST_MISSING_LICENSE
Files: /repo/plugins/fastify-expert/skills/fastify-expert/SKILL.md, /repo/plugins/tap-testcontainers/skills/tap-testcontainers/SKILL.md, /repo/plugins/fastify-testing/skills/fastify-testing/SKILL.md and 25 more · reported by cisco-skill-scanner
8 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/plugins/fastify-expert/SKILL.md, /repo/plugins/tap-testcontainers/SKILL.md and 5 more · reported by cisco-skill-scanner
7 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
6 AAK-MCP-018
Files: plugins/localstack-expert/mcp-server/src/index.ts, plugins/localstack-expert/mcp-server/src/tools/dynamodb.ts, plugins/localstack-expert/mcp-server/src/tools/s3.ts and 3 more · reported by agent-audit-kit
5 MANIFEST_DESCRIPTION_TOO_LONG
Files: /repo/plugins/prompt-engineer/humanreadable/agents/SKILL.md, /repo/plugins/prompt-engineer/humanreadable/skills/prompt-engineer/SKILL.md, /repo/plugins/tap-testcontainers/skills/tap-testcontainers/SKILL.md and 2 more · reported by cisco-skill-scanner
4 AAK-MCP-003
Files: plugins/localstack-expert/.mcp.json · reported by agent-audit-kit
4 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/plugins/localstack-expert/mcp-server/src/tools/lambda.ts · reported by cisco-skill-scanner
2 AAK-MCP-007
Files: plugins/localstack-expert/.mcp.json · reported by agent-audit-kit
2 FILE_MAGIC_MISMATCH
Files: /repo/plugins/localstack-expert/mcp-server/src/index.ts · reported by cisco-skill-scanner
2 LOW_ANALYZABILITY
Files: /repo/plugins/localstack-expert, /repo · reported by cisco-skill-scanner
1 AAK-LEGAL-002
Files: plugins/localstack-expert/mcp-server/package.json · reported by agent-audit-kit
1 AAK-MCP-005
Files: plugins/localstack-expert/.mcp.json · reported by agent-audit-kit
1 AAK-MCP-ATTEST-001
Files: plugins/localstack-expert/.mcp.json · reported by agent-audit-kit
1 AAK-MCP-STDIO-LAUNCHER-INJECT-001
Files: plugins/localstack-expert/.mcp.json · reported by agent-audit-kit
1 AAK-SKILL-001
Files: plugins/localstack-expert/skills/localstack-expert/SKILL.md · reported by agent-audit-kit
1 AAK-SKILL-003
Files: plugins/localstack-expert/skills/localstack-expert/SKILL.md · reported by agent-audit-kit
Critical risks: shell execution, data exfiltration, and credential access
The artifact contains critical findings related to shell execution capabilities within skill definitions and potential credential access. High-severity findings indicate the ability to exfiltrate data via file system access in `mcp-server/src/tools/lambda.ts` and to inject commands into standard I/O launchers. These capabilities are present in installed code and warrant immediate attention.
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.