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Playwright MCP-compatible browser automation bridge for CloakBrowser Chromium.
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.
153 critical findings reported by cisco-skill-scanner, agent-audit-kit, 5 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
This artifact ships from 4 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. Some sources have no verdict at all; that is not a pass.
github: https://github.com/swimmwatch/cloakbrowser-mcp, 280 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- cloakbrowser-mcp
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
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
0 findings · 3.4s
v2.0.11
98 findings · 140.8s
v0.3.26
165 findings · 42.7s
v0.1.0
8 findings · 66.4s
v0.1.0
0 findings · 66.4s
v0.1.0
0 findings · 22.6s
No report in this scan: capslock, 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 2, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-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 271 findings across every scanner that examined this package. 148 of 153 findings rated critical by their scanner were among the dismissals.
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.
142 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-001, AAK-AGENT-002 · Files: AGENTS.md, .github/copilot-instructions.md · reported by agent-audit-kit
28 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, AAK-DNS-REBIND-001, AAK-MCP-STDIO-CMD-INJ-002 and 5 more · Files: /repo/tests/e2e/distributionHarness.ts, /repo/tests/e2e/packaged-cli.test.ts, /repo/tests/unit/config.test.ts and 11 more · reported by cisco-skill-scanner, agent-audit-kit
24 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: FILE_MAGIC_MISMATCH, YARA_prompt_injection_unicode_steganography, UNANALYZABLE_BINARY and 6 more · Files: /repo/docs/overrides/main.html, /repo/docs/assets/videos/30-second-demo-poster.png, /repo/docs/llms.txt and 8 more · 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.
20 HIDDEN_DATA_FILE
Files: /repo/.agents/skills/interview-me/SKILL.md, /repo/.agents/skills/planning-and-task-breakdown/SKILL.md, /repo/.agents/LICENSE.agent-skills and 17 more · reported by cisco-skill-scanner
19 MANIFEST_MISSING_LICENSE
Files: /repo/.agents/skills/documentation-and-adrs/SKILL.md, /repo/.agents/skills/performance-optimization/SKILL.md, /repo/.agents/skills/project-docs-maintainer/SKILL.md and 16 more · reported by cisco-skill-scanner
7 DATA_EXFIL_JS_NETWORK
Files: /repo/scripts/check-mcp-schema-updates.mjs, /repo/scripts/compare-playwright-mcp-bridge.mjs, /repo/scripts/lib/http.mjs and 3 more · reported by cisco-skill-scanner
6 opt.nerlo-rules.nerlo-clipboard-read-exfiltration
Files: /repo/scripts/apply-release-version.mjs, /repo/scripts/generate-version-compatibility.mjs, /repo/scripts/lib/docs-seo.mjs and 1 more · reported by nerlo-behavioral
4 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/.agents/references/SKILL.md, /repo/.agents/runbooks/SKILL.md and 1 more · reported by cisco-skill-scanner
3 YARA_command_injection_generic
Files: /repo/schemas/mcp/latest.json, /repo/schemas/mcp/mcp-schema-2025-12-11.json, /repo/scripts/lib/schemas/mcp-server-2025-12-11.schema.json · reported by cisco-skill-scanner
2 AAK-ANTHROPIC-SDK-001
Files: scripts/compare-playwright-mcp-bridge.mjs, src/server.ts · reported by agent-audit-kit
2 AAK-MCP-STATELESS-001
Files: src/http/server.ts, src/protocol/constants.ts · reported by agent-audit-kit
1 AAK-DNS-REBIND-001
Files: src/http/server.ts · reported by agent-audit-kit
1 AAK-LEGAL-002
Files: tools/video/30-second-demo/package.json · reported by agent-audit-kit
1 AAK-MCP-018
Files: scripts/compare-playwright-mcp-bridge.mjs · reported by agent-audit-kit
1 AAK-MCP-STDIO-CMD-INJ-002
Files: src/server.ts · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SECRET-004
Files: src/bridge/config.ts · reported by agent-audit-kit
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 BINARY_FILE_DETECTED
Files: /repo/tools/video/30-second-demo/public/glowing-star-0.5x.webm · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 FILE_MAGIC_MISMATCH
Files: /repo/src/runtime/consoleFallback.ts · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/scripts/lib/indexnow.mjs · reported by nerlo-behavioral
1 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/scripts/lib/http.mjs · reported by nerlo-behavioral
1 UNANALYZABLE_BINARY
Files: /repo/tools/video/30-second-demo/public/glowing-star-0.5x.webm · reported by cisco-skill-scanner
Critical command injection and DNS rebind risks identified.
The artifact contains critical command injection vulnerabilities in `src/server.ts` and schema files, allowing shell execution. A critical DNS rebind vulnerability is present in `src/http/server.ts`. Additionally, high-severity findings indicate potential clipboard data exfiltration in multiple script files and secret exposure with network egress in `scripts/lib/http.mjs`.
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.