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Open-source YAFL client: the @yafldev/mcp MCP server and @yafldev/cli, plus the shared client-side crypto and transfer pipeline.
The publisher performed an authenticated act of publication — proving control of a namespace in the official MCP registry, or appearing in a first-party catalogue an operator curates. That establishes WHO published it. It is not a security finding, and attested artifacts carry Flagged verdicts too.
1 critical finding reported by agent-audit-kit. The composite score alone does not reflect this — read the per-scanner reports below.
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- yafl-mcp
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 · 0.5s
v2.0.11
20 findings · 7.5s
v0.3.26
17 findings · 0.9s
v0.1.0
2 findings · 27.1s
v0.1.0
2 findings · 27.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 11.0s
No report in this scan: capslock, govulncheck, osv-scanner, trivy, trivy_image.
2 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 3, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source ·n/a: not applicable | rejected |
| Aug 2, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-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 41 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.
1 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: SECRET_PASSWORD_VAR · Files: /repo/packages/crypto/test/fragment.test.ts · 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.
9 AAK-MCP-018
Files: apps/mcp/src/toolManifest.ts, apps/mcp/src/index.ts, apps/mcp/src/tools/login.ts and 6 more · reported by agent-audit-kit
5 DATA_EXFIL_JS_NETWORK
Files: /repo/packages/client/src/apiClient.ts, /repo/packages/client/src/transferPipeline.ts, /repo/apps/mcp/src/toolManifest.ts · reported by cisco-skill-scanner
5 PIPELINE_TAINT_FLOW
Files: /repo/README.md, /repo/apps/mcp/README.md, /repo/SKILL.md and 1 more · reported by cisco-skill-scanner
3 LOW_ANALYZABILITY
Files: /repo/apps/cli, /repo/apps/mcp, /repo · reported by cisco-skill-scanner
3 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/apps/cli/SKILL.md, /repo/apps/mcp/SKILL.md · reported by cisco-skill-scanner
3 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/apps/cli/SKILL.md, /repo/apps/mcp/SKILL.md · reported by cisco-skill-scanner
2 AAK-LEGAL-002
Critical SSRF, secret egress, and shell execution risks identified.
Critical Server-Side Request Forgery (SSRF) is present in `apps/mcp/src/tools/downloadFile.ts`, which could allow requests to internal resources. High severity findings indicate potential secret exposure via network egress in `packages/client/src/apiClient.ts` and `packages/client/src/transferPipeline.ts`. Additionally, installation instructions pipe directly to a shell in `README.md` files, which could execute arbitrary commands. Further high severity SSRF is noted in `apps/mcp/src/tools/downloadFile.ts` and supply chain risks are present in `.mcp.json`.
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: packages/client/package.json, packages/crypto/package.json · reported by agent-audit-kit
2 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/README.md, /repo/apps/mcp/README.md · reported by nerlo-install-instruction
2 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/packages/client/src/apiClient.ts, /repo/packages/client/src/transferPipeline.ts · reported by nerlo-behavioral
1 AAK-MCP-005
Files: .mcp.json · reported by agent-audit-kit
1 AAK-MCP-007
Files: .mcp.json · reported by agent-audit-kit
1 AAK-SSRF-001
Files: apps/mcp/src/tools/downloadFile.ts · reported by agent-audit-kit
1 AAK-SSRF-005
Files: apps/mcp/src/tools/downloadFile.ts · reported by agent-audit-kit
1 AAK-SUPPLY-001
Files: .mcp.json · reported by agent-audit-kit
1 AAK-SUPPLY-004
Files: package.json · reported by agent-audit-kit