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MCP server that generates ChatKit widgets via Widget Studio and renders them inline in Claude, ChatGPT, Codex, and other MCP hosts
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. 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 -- widget-studio-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
2 findings · 0.6s
v2.0.11
64 findings · 131.6s
v0.3.74
15 findings · 1.7s
v0.1.0
0 findings · 3.1s
v0.1.0
0 findings · 3.1s
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 · 2.0s
No report in this scan: 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 |
|---|---|---|---|---|
| Sep 3, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
| Aug 11, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·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 81 findings across every scanner that examined this package. None of the 29 findings 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.
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
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.
16 COMMAND_INJECTION_EVAL
Files: /repo/dist/image.js, /repo/dist/index.js, /repo/dist/widget-file.js and 1 more · reported by cisco-skill-scanner
12 OBFUSCATION_HEX_BLOB
Files: /repo/dist/image.js, /repo/dist/index.js · reported by cisco-skill-scanner
9 DATA_EXFIL_JS_NETWORK
Files: /repo/dist/image.js, /repo/dist/index.js, /repo/dist/widget-studio.js and 1 more · reported by cisco-skill-scanner
8 SECRET_AWS_KEY
Files: /repo/dist/image.js, /repo/dist/index.js · reported by cisco-skill-scanner
6 MANIFEST_MISSING_LICENSE
Files: /repo/skills/preview/SKILL.md, /repo/skills/tweak/SKILL.md, /repo/skills/make/SKILL.md and 3 more · reported by cisco-skill-scanner
4 COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR
Files: /repo/dist/index.js, /repo/dist/widget-file.js, /repo/src/widget-file.ts · reported by cisco-skill-scanner
3 HIDDEN_DATA_FILE
Critical command injection, exposed AWS keys, and DNS rebind risk identified.
The artifact contains multiple critical command injection vulnerabilities in `/repo/dist/image.js` and `/repo/dist/index.js`, which could lead to shell execution. Several AWS access keys are exposed within `/repo/dist/image.js` and `/repo/dist/index.js`, indicating potential for credential access. Additionally, a critical DNS rebind vulnerability is present in `src/index.ts`, which could facilitate network egress or other network-based attacks.
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/.cursor-plugin/plugin.json, /repo/.agents/plugins/marketplace.json, /repo/.codex-plugin/plugin.json · reported by cisco-skill-scanner
2 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json, .agents/plugins/marketplace.json · reported by agent-audit-kit
2 AAK-MCP-018
Files: src/index.ts, src/server.ts · reported by agent-audit-kit
2 AAK-MCP-ATTEST-001
Files: .mcp.json, mcp.json · reported by agent-audit-kit
2 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/skills/make/references/SKILL.md · reported by cisco-skill-scanner
1 AAK-ANTHROPIC-SDK-001
Files: src/index.ts · reported by agent-audit-kit
1 AAK-DNS-REBIND-001
Files: src/index.ts · reported by agent-audit-kit
1 AAK-MARKETPLACE-004
Files: .agents/plugins/marketplace.json · reported by agent-audit-kit
1 AAK-MCP-APPS-002
Files: src/web/app.ts · reported by agent-audit-kit
1 AAK-MCP-STDIO-LAUNCHER-INJECT-001
Files: mcp.json · 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-SKILL-004
Files: skills/doctor/SKILL.md · reported by agent-audit-kit
1 AAK-TAINT-003
Files: src/server.ts · reported by agent-audit-kit
1 LOW_ANALYZABILITY
Files: /repo · reported by cisco-skill-scanner
1 mcp-no-desc-widget-studio
Files: mcp.json · reported by agentshield
1 mcp-shell-metachar-widget-studio
Files: mcp.json · reported by agentshield
1 OVERSIZED_FILE
Files: /repo/dist/index.js · reported by cisco-skill-scanner
Showing 25 of 37; the rest are in the per-scanner reports above.