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The publisher performed an authenticated act of publication — proving control of a namespace in the official MCP registry, or appearing in a first-party catalogue an operator curates. That establishes WHO published it. It is not a security finding, and attested artifacts carry Flagged verdicts too.
8 critical findings reported by cisco-skill-scanner, agent-audit-kit. The composite score alone does not reflect this — read the per-scanner reports below.
github: https://github.com/AlexanderKaan/uisandbox, 172 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- uisandbox
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
0 findings · 0.8s
v2.0.11
82 findings · 20.8s
v0.3.74
9 findings · 9.4s
v0.1.0
6 findings · 7.7s
v0.1.0
0 findings · 7.7s
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 · 1.8s
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 ·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 97 findings across every scanner that examined this package. None of the 8 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.
21 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: YARA_prompt_injection_unicode_steganography, UNANALYZABLE_BINARY, ARCHIVE_FILE_DETECTED and 5 more · Files: /repo/public/samples/bootstrap-docs.zip, /repo/public/samples/vitepress-site.zip, /repo/public/samples/sb-admin-dashboard.zip and 2 more · 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: HIDDEN_DATA_FILE · Files: /repo/public/samples/sb-admin-dashboard.zip!/startbootstrap-sb-admin-2-master/.travis.yml · reported by cisco-skill-scanner
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: OBFUSCATION_XOR_ENCODING · Files: /repo/src/audit/__tests__/intake.test.ts · 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.
19 DATA_EXFIL_JS_NETWORK
Files: /repo/mcp/server.ts, /repo/mcp/smoke.ts, /repo/public/sw.js and 7 more · reported by cisco-skill-scanner
6 BINARY_FILE_DETECTED
Files: /repo/brand/marketing/gif/demo-metro.mp4, /repo/brand/marketing/gif/montage-10-sites.mp4, /repo/brand/marketing/gif/demo-agency.mp4 · reported by cisco-skill-scanner
6 UNANALYZABLE_BINARY
Files: /repo/brand/marketing/gif/demo-agency.mp4, /repo/brand/marketing/gif/montage-10-sites.mp4, /repo/brand/marketing/gif/demo-metro.mp4 · reported by cisco-skill-scanner
5 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/src/audit/engine/audit.mjs · reported by cisco-skill-scanner
5 MANIFEST_MISSING_LICENSE
Files: /repo/skills/uisandbox/SKILL.md, /repo/SKILL.md, /repo/notes/SKILL.md and 2 more · reported by cisco-skill-scanner
4
The model could have called any of these a false positive and did not.
3 OBFUSCATION_XOR_ENCODING
Files: /repo/mcp/zipdir.ts, /repo/src/export/zip.ts · reported by cisco-skill-scanner
Critical command injection and data exfiltration risks identified.
The artifact contains multiple critical command injection vulnerabilities in `mcp/server.ts`, `scripts/_d.mjs`, `scripts/kind-share.ts`, and `scripts/knob-effect.ts`, allowing for shell execution. It also exhibits high-severity capabilities for reading clipboard data and exfiltrating secrets over the network from `public/sw.js`, `src/audit/intake/readZip.ts`, and `src/sandbox/project.ts`. Further high-severity findings indicate potential server-side request forgery and use of sensitive SDKs in `mcp/server.ts` and `mcp/smoke.ts`. These capabilities warrant careful review due to the potential for system compromise and sensitive data exposure.
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/src/audit/intake/readZip.ts, /repo/src/sandbox/project.ts · reported by nerlo-behavioral
4 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/notes/SKILL.md, /repo/mcp/SKILL.md and 1 more · reported by cisco-skill-scanner
3 COMMAND_INJECTION_EVAL
Files: /repo/mcp/server.ts, /repo/scripts/_d.mjs · reported by cisco-skill-scanner
3 LOW_ANALYZABILITY
Files: /repo, /repo/brand/marketing, /repo/mcp · reported by cisco-skill-scanner
2 AAK-ANTHROPIC-SDK-001
Files: mcp/smoke.ts, mcp/server.ts · reported by agent-audit-kit
2 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/scripts/kind-share.ts, /repo/scripts/knob-effect.ts · reported by cisco-skill-scanner
2 FILE_MAGIC_MISMATCH
Files: /repo/public/llms-full.txt, /repo/public/llms.txt · reported by cisco-skill-scanner
1 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
1 AAK-MCP-018
Files: mcp/server.ts · reported by agent-audit-kit
1 AAK-MCP-STDIO-CMD-INJ-002
Files: mcp/smoke.ts · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SSRF-002
Files: mcp/server.ts · reported by agent-audit-kit
1 AAK-TAINT-001
Files: mcp/server.ts · reported by agent-audit-kit
1 AAK-TAINT-002
Files: mcp/server.ts · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/src/app/StarButton.tsx · reported by nerlo-behavioral
1 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/public/sw.js · reported by nerlo-behavioral