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MCP server for building n8n workflows
Cursor Rules are .cursorrules / .cursor/rules files that steer Cursor's AI; 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.
5 critical findings reported by cisco-skill-scanner, agent-audit-kit, 1 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
This artifact ships from 2 sources and their verdicts differ. The worst is github (Flagged). Installing from a cleaner source does not mean the others are safe — check the source you actually install from.
github: https://github.com/elomi-inc/n8n-workflow-builder-mcp, 536 findings
Cursor Rules are .cursorrules / .cursor/rules files that steer Cursor's AI. Review the scanned source before copying them into your own project.
nerlo install -- n8n-workflow-builder-mcp
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
0 findings · 0.5s
v2.0.11
116 findings · 10.8s
v0.3.74
31 findings · 8.9s
v0.1.0
13 findings · 7.2s
v0.1.0
0 findings · 7.3s
v0.1.0
0 findings · 10.8s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
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: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: complete | 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 160 findings across every scanner that examined this package. 4 of 5 findings rated critical by their scanner were among the dismissals.
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 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: COMMAND_INJECTION_JS_CHILD_PROCESS, DATA_EXFIL_JS_FS_ACCESS, AAK-MCP-HTTP-NOAUTH-SERVER-001 · Files: /repo/tests/run-memory-tests.js, /repo/tests/run-tests.js, /repo/tests/unit/add-node-exec.test.js and 8 more · reported by cisco-skill-scanner, agent-audit-kit
2 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/docs/SKILL.md · reported by cisco-skill-scanner
1 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/npm-publish-github-packages.yml · reported by agent-audit-kit
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.
83 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/scripts/analyze-and-migrate-nodes.js, /repo/scripts/organize-current-nodes.js, /repo/src/index.ts and 27 more · reported by cisco-skill-scanner
14 AAK-TAINT-003
Files: src/index.ts · reported by agent-audit-kit
12 DATA_EXFIL_JS_NETWORK
Files: /repo/src/models/llmService.js, /repo/src/models/n8nIntegration.js, /repo/src/nodes/versioning.ts and 2 more · reported by cisco-skill-scanner
11 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/src/models/llmService.js, /repo/src/models/n8nIntegration.js, /repo/src/nodes/versioning.ts and 1 more · reported by nerlo-behavioral
2 AAK-MCP-018
Files: src/index.ts, src/mcp/toolRegistry.ts · reported by agent-audit-kit
2 AAK-MCP-N8N-CVE-2026-65594-001
Files: package.json · reported by agent-audit-kit
2 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/src/models/llmService.js · reported by nerlo-behavioral
1 AAK-ANTHROPIC-SDK-001
Files: src/index.ts · reported by agent-audit-kit
1 AAK-DNS-REBIND-002
Files: package.json · reported by agent-audit-kit
1 AAK-MCP-015
Files: src/index.ts · reported by agent-audit-kit
1 AAK-MCP-N8N-CVE-2026-59207-001
Files: package.json · reported by agent-audit-kit
1 AAK-MCP-N8N-CVE-2026-72768-001
Files: package.json · reported by agent-audit-kit
1 AAK-OAUTH-001
Files: src/middleware/authorize.js · reported by agent-audit-kit
1 AAK-OAUTH-007
Files: src/middleware/authorize.js · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SEC-MD-001
Files: SECURITY.md · reported by agent-audit-kit
1 AAK-SECRET-004
Files: src/middleware/auth.js · reported by agent-audit-kit
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 FILE_MAGIC_MISMATCH
Files: /repo/scripts/prd.txt · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo · reported by cisco-skill-scanner
1 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md · reported by cisco-skill-scanner
1 OVERSIZED_FILE
Files: /repo/catalog.sqlite · reported by cisco-skill-scanner
1 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md · reported by cisco-skill-scanner
Critical vulnerability and multiple high-severity risks identified.
The artifact contains a critical vulnerability (AAK-MCP-015) in `src/index.ts` that could allow shell execution. Additionally, there are numerous high-severity findings, including potential data exfiltration via file system access in `/repo/scripts/` and network egress of secrets. The artifact also exhibits taint vulnerabilities (AAK-TAINT-003) in `src/index.ts` and exposes OAuth credentials (AAK-OAUTH-001) in `src/middleware/authorize.js`.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Showing 25 of 116; the rest are in the per-scanner reports above.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.