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Structured failure knowledge for AI agents — dead ends, workarounds, error chains
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.
10 critical findings reported by cisco-skill-scanner, agent-audit-kit. 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/dbwls99706/deadends.dev, 114 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 -- deadends-dev
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
3 findings · 0.8s
v2.0.11
59 findings · 59.6s
v0.3.74
30 findings · 68.8s
v0.1.0
2 findings · 12.9s
v0.1.0
0 findings · 12.9s
v0.1.0
0 findings · 14.9s
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 22, 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 94 findings across every scanner that examined this package. None of the 10 findings rated critical by their scanner were dismissed.
Not reviewed is not the same as clean. Those 5 findings stand exactly as their scanners reported them, at full severity, as they would have without this review.
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.
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: AAK-AGENT-002, agents-claude-md-autorun-425, TOOL_ABUSE_UNDECLARED_NETWORK · Files: AGENTS.md, CLAUDE.md, .github/copilot-instructions.md and 1 more · reported by agent-audit-kit, agentshield, cisco-skill-scanner
9 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: COMPOUND_EXTRACT_EXECUTE, AAK-HEALTHCARE-AI-004, MANIFEST_MISSING_LICENSE and 1 more · Files: /repo/docs/PYPI_RELEASE_MANUAL.md, /repo/docs/SKILL.md, docs/country-canon-guide.md and 3 more · reported by cisco-skill-scanner, agent-audit-kit
2 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-SECRET-004, AAK-OAUTH-007 · Files: .github/workflows/gsc-report.yml · reported by agent-audit-kit
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: TOOL_ABUSE_SYSTEM_PACKAGE_INSTALL · Files: /repo/tests/test_benchmark.py · 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.
10 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/generator/bulk_generate.py, /repo/generator/collect_evidence.py, /repo/generator/collect_signatures.py and 1 more · reported by cisco-skill-scanner
7 COMMAND_INJECTION_EVAL
Files: /repo/archive/bulk_generate_history/bulk_generate_v13.py, /repo/archive/bulk_generate_history/bulk_generate_v2.py, /repo/archive/bulk_generate_history/bulk_generate_v6.py and 3 more · reported by cisco-skill-scanner
5 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/.claude/SKILL.md, /repo/data/signatures/SKILL.md and 2 more · reported by cisco-skill-scanner
4 AAK-AGENT-002
Files: .cursorrules, .windsurfrules · reported by agent-audit-kit
4 AAK-IPI-WILD-CORPUS-001
Files: generator/bulk_generate.py, data/canons/git/shallow-update-not-allowed_git2-linux.json, data/canons/pip/access-denied-windows/pip24-windows.json and 1 more · reported by agent-audit-kit
The model could have called any of these a false positive and did not.
1 AAK-MCP-CARD-003
Files: .well-known/mcp/server-card.json · reported by agent-audit-kit
3 The model did not answer for these findings.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION · Files: /repo/.github/SKILL.md, /repo/docs/SKILL.md, /repo/docs/backlinks/SKILL.md · reported by cisco-skill-scanner
2 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: skills-missing-governance-commands/add-canon.md, skills-missing-telemetry-commands/add-canon.md · Files: commands/add-canon.md · reported by agentshield
Artifact contains critical command injection and data exfiltration risks.
The artifact exhibits critical command injection vulnerabilities via `eval` and `os.system` in `generator/bulk_generate.py`, allowing arbitrary shell execution. It also has a critical SQL RCE finding in `generator/bulk_generate.py` and critical data exfiltration via socket connections in `archive/bulk_generate_history/bulk_generate_v3.py`. High-severity findings include potential prompt injection, server-side request forgery, and network egress of secrets from `generator/collect_evidence.py` and `generator/collect_signatures.py`.
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.
4 FILE_MAGIC_MISMATCH
Files: /repo/generator/templates/country.html, /repo/generator/templates/page.html, /repo/generator/templates/_macros.html and 1 more · reported by cisco-skill-scanner
4 HIDDEN_DATA_FILE
Files: /repo/.windsurfrules, /repo/.clinerules, /repo/.well-known/mcp-registry-auth and 1 more · reported by cisco-skill-scanner
4 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/.claude/SKILL.md, /repo/data/signatures/SKILL.md and 1 more · reported by cisco-skill-scanner
3 AAK-HEALTHCARE-AI-004
Files: CONTRIBUTING.md, data/canons/medical/hospital-deposit-illegal-but-demanded/ph.json, data/canons/policy/rni-desk-restricted-for-non-eu/nl.json · reported by agent-audit-kit
3 YARA_indirect_prompt_injection_generic
Files: /repo/data/canons/security/csp-unsafe-inline/browser-all.json, /repo/data/signatures/index.jsonl · reported by cisco-skill-scanner
2 AAK-OAUTH-008
Files: generator/build_site.py, data/canons/banking/cash-declaration-threshold/ma.json · reported by agent-audit-kit
2 opt.nerlo-rules.nerlo-py-secret-to-network-egress
Files: /repo/generator/collect_evidence.py, /repo/generator/collect_signatures.py · reported by nerlo-behavioral
2 TOOL_ABUSE_SYSTEM_PACKAGE_INSTALL
Files: /repo/archive/bulk_generate_history/bulk_generate_v16.py, /repo/generator/build_site.py · reported by cisco-skill-scanner
2 YARA_code_execution_generic
Files: /repo/data/canons/python/subprocess-space-in-path-split/py311-linux.json, /repo/archive/bulk_generate_history/bulk_generate_v6.py · reported by cisco-skill-scanner
1 AAK-LANGCHAIN-SSRF-REDIR-001
Files: generator/validate.py · reported by agent-audit-kit
1 AAK-LLM-SQL-RCE-001
Files: generator/bulk_generate.py · reported by agent-audit-kit
1 AAK-SEC-MD-001
Files: SECURITY.md · reported by agent-audit-kit
1 AAK-SSRF-TOCTOU-001
Files: generator/validate.py · reported by agent-audit-kit
1 AAK-SUPPLY-004
Files: pyproject.toml · reported by agent-audit-kit
1 ASSET_PROMPT_INJECTION
Files: /repo/data/canons/llm/prompt-injection-system-prompt-leak/llm-api-any.json · reported by cisco-skill-scanner
1 COMMAND_INJECTION_OS_SYSTEM
Files: /repo/generator/bulk_generate.py · reported by cisco-skill-scanner
1 COMMAND_INJECTION_SHELL_TRUE
Files: /repo/generator/bulk_generate.py · reported by cisco-skill-scanner
1 DATA_EXFIL_SOCKET_CONNECT
Files: /repo/archive/bulk_generate_history/bulk_generate_v3.py · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 MANIFEST_INVALID_NAME
Files: /repo/.claude/SKILL.md · reported by cisco-skill-scanner