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Official AppTweak MCP integrations for Cursor, Claude Code, and Codex
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.
Claude Skills install to a single target, no runtime picker.
nerlo install -- mcp-crossclient
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- mcp-crossclient ~/.claude/skills/
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
2 findings · 0.5s
v2.0.11
20 findings · 6.8s
v0.3.74
9 findings · 1.1s
v0.1.0
0 findings · 2.7s
v2.3.8
0 findings · 6.8s
v0.1.0
No source files this scanner can analyze were found in this artifact. What each scanner covers
0 findings · 2.7s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 1.9s
v0.71.0
No dependency manifest or lockfile was found in this artifact. What each scanner covers
0 findings · 0.2s
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
vv1.6.0
No Go modules were found in this artifact. What each scanner covers
0 findings · 0.1s
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 21, 2026 | Flagged87 | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral ·n/a: not applicablenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicabletrivy ·n/a: not applicableosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·n/a: not applicable | completed |
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 31 findings across every scanner that examined this package.
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.
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
2 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: AAK-MCP-ATTEST-001, AAK-OAUTH-008 · Files: shared/spec/mcp-server.json · 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.
7 HIDDEN_DATA_FILE
Files: /repo/plugins/codex/.codex-plugin/plugin.json, /repo/plugins/cursor/.cursor-plugin/plugin.json, /repo/.agents/plugins/marketplace.json and 2 more · reported by cisco-skill-scanner
7 MANIFEST_MISSING_LICENSE
Files: /repo/plugins/codex/skills/apptweak-dashboard-builder/SKILL.md, /repo/plugins/claude-code/skills/apptweak-dashboard-builder/SKILL.md, /repo/plugins/cursor/skills/apptweak-dashboard-builder/SKILL.md and 4 more · reported by cisco-skill-scanner
4 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/plugins/codex/SKILL.md, /repo/plugins/claude-code/SKILL.md and 1 more · reported by cisco-skill-scanner
2 AAK-MARKETPLACE-001
Files: .cursor-plugin/marketplace.json, .agents/plugins/marketplace.json · reported by agent-audit-kit
2 AAK-MCP-ATTEST-001
Files: plugins/claude-code/.mcp.json, plugins/cursor/mcp.json · reported by agent-audit-kit
Artifact has high-severity marketplace and network egress concerns.
The artifact includes high-severity findings related to marketplace configuration in `.agents/plugins/marketplace.json` and `.cursor-plugin/marketplace.json`. It also exhibits network egress capabilities via URL transport to an API, identified in `plugins/cursor/mcp.json`. Additionally, a high-severity legal finding is present in `package.json`.
Concern level assessed by the review: High. 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.
1 AAK-LEGAL-001
Files: package.json · reported by agent-audit-kit
1 AAK-SEC-MD-001
Files: SECURITY.md · reported by agent-audit-kit
1 AAK-SUPPLY-003
Files: package.json · reported by agent-audit-kit
1 mcp-no-desc-apptweak-api
Files: plugins/cursor/mcp.json · reported by agentshield
1 mcp-url-transport-apptweak-api
Files: plugins/cursor/mcp.json · reported by agentshield