MCP server for the Polarity exocortex. Read and write your personal knowledge graph from any LLM client.
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.
29 critical findings reported by cisco-skill-scanner, agent-audit-kit, 27 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/teampolarity/cosmos-mcp, 198 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 -- @polarity-lab/cosmos-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
16 findings · 0.9s
v2.0.11
110 findings · 8.3s
v0.3.74
16 findings · 3.6s
v0.1.0
9 findings · 4.4s
v0.1.0
5 findings · 4.4s
v0.1.0
0 findings · 8.4s
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 20, 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 156 findings across every scanner that examined this package. 1 of 29 findings rated critical by their scanner was among the dismissals.
Not reviewed is not the same as clean. Those 46 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 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_NETWORK · Files: /repo/tests/provision.test.ts, /repo/tests/bootstrap.test.ts, /repo/tests/settings/server.test.ts and 1 more · reported by cisco-skill-scanner
6 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, opt.nerlo-rules.nerlo-install-run-bundled-artifact, MANIFEST_MISSING_LICENSE · Files: /repo/docs/SKILL.md, /repo/docs/handoff_2026-05-19_daemon_app_bundle.md, /repo/docs/macos-release-signing.md · reported by cisco-skill-scanner, nerlo-install-instruction
1 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: TOOL_ABUSE_UNDECLARED_NETWORK · Files: /repo/repo/CLAUDE.md · reported by cisco-skill-scanner
The model could have called any of these a false positive and did not.
22 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/scripts/sync-server-card.mjs, /repo/src/daemon/config.ts, /repo/src/settings/fda-status.ts and 8 more · reported by cisco-skill-scanner
20 DATA_EXFIL_JS_NETWORK
Files: /repo/bin/cosmos-mcp.js, /repo/browser-extension/background.js, /repo/src/auth/bootstrap.ts and 10 more · reported by cisco-skill-scanner
17 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/bin/cosmos-mcp.js, /repo/src/daemon/cli.ts, /repo/src/daemon/manage.ts and 2 more · reported by cisco-skill-scanner
5 FILE_MAGIC_MISMATCH
Files: /repo/worker/src/index.ts, /repo/src/update/progress.ts, /repo/src/settings/server.ts and 2 more · reported by cisco-skill-scanner
5 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/browser-extension/background.js, /repo/src/stack/polarity-stack.crosslinks.ts · reported by nerlo-behavioral
4 DATA_EXFIL_NETWORK_REQUESTS
40 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: COMMAND_INJECTION_JS_CHILD_PROCESS, COMPOUND_FETCH_EXECUTE, permissions-all-mutable-tools and 15 more · Files: /repo/capture-conversation.js, /repo/test-capture-turn.js, /repo/test-durable-delta.js and 12 more · reported by cisco-skill-scanner, agentshield, nerlo-install-instruction and 1 more
6 The model did not answer for these findings.
Rules: DATA_EXFIL_JS_FS_ACCESS · Files: /repo/tests/sources/claude-desktop/parse.test.ts, /repo/tests/sources/claude-desktop/sync.test.ts, /repo/tests/sources/imessage/caption.test.ts and 1 more · reported by cisco-skill-scanner
Critical command injection and data exfiltration risks.
The artifact contains critical command injection vulnerabilities, enabling shell execution in components like `bin/cosmos-mcp.js`, `src/daemon/cli.ts`, `src/daemon/manage.ts`, and `src/server.ts`. High-severity findings indicate potential data exfiltration through file system access and network egress, including exposure of secrets. Additionally, permissive permissions allow broad file writes and further shell execution.
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: /repo/scripts/cbm/lab_stack_clients.py · reported by cisco-skill-scanner
4 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/bin/cosmos-mcp.js, /repo/src/client/cosmos.ts, /repo/src/settings/server.ts · reported by nerlo-behavioral
2 AAK-SECRET-004
Files: scripts/build-daemon-app.sh, src/sources/calendar/cli.ts · reported by agent-audit-kit
2 LOW_ANALYZABILITY
Files: /repo, /repo/browser-extension · reported by cisco-skill-scanner
1 AAK-ANTHROPIC-SDK-001
Files: src/server.ts · reported by agent-audit-kit
1 AAK-DNS-REBIND-002
Files: package.json · reported by agent-audit-kit
1 AAK-LEGAL-002
Files: worker/package.json · reported by agent-audit-kit
1 AAK-MCP-018
Files: src/auth/bootstrap.ts · reported by agent-audit-kit
1 AAK-MCP-STDIO-CMD-INJ-002
Files: src/server.ts · reported by agent-audit-kit
1 AAK-OAUTH-007
Files: bin/cosmos-mcp.js · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SUPPLY-003
Files: package.json · reported by agent-audit-kit
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 AAK-TAINT-001
Files: src/settings/server.ts · reported by agent-audit-kit
1 AAK-TAINT-003
Files: src/auth/bootstrap.ts · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 HIDDEN_DATA_FILE
Files: /repo/.codebase-memory/lab-stack-links.json · reported by cisco-skill-scanner
Showing 15 of 15; the rest are in the per-scanner reports above.