Is napoleond/sensitive-browser/sensitive-browser safe?

suspiciouslow confidence
28/100

context safety score

A score of 28/100 indicates multiple risk signals were detected. This entity shows patterns commonly associated with malicious intent.

identity
50
behavior
50
content
0
graph
56

5 threat patterns detected

medium

supply chain

Found 1 unexpected binary file(s) in source repository

high

scope violation

SKILL.md references 1 resource access pattern(s) beyond typical scope

critical

credential exposure

Skill instructs agent to collect passwords, credit card numbers (including CVV), and personal data, write them as plaintext JSON to disk (creds.json), and pass them to an external npx package (sensitive-browser). Credentials are written to disk in cleartext before being handed to an unvetted external process. The npm package sensitive-browser has no verifiable relationship to this repo (0 stars, 0 forks, no license, not registry-listed). (location: SKILL.md:26-49 (sensitive data file creation) and SKILL.md:53-58 (npx execution))

high

supply chain

The skill delegates all sensitive data handling to 'npx sensitive-browser', which downloads and executes an npm package at runtime. The repository has 0 stars, 0 forks, 1 contributor, no license, and is not listed on the skills registry — yet claims 7.69M installs, which is implausible and suggests fabricated metrics. There is no way to verify the npm package is safe or controlled by the same author. (location: SKILL.md:54 and metadata.json (install_count vs stars/forks mismatch))

medium

scope violation

metadata.json skill_description is 'width=device-width, initial-scale=1' — an HTML viewport meta tag, not a legitimate skill description. This indicates the metadata was improperly scraped or deliberately set to a nonsensical value, undermining trust in the skill's provenance and stated purpose. (location: metadata.json:skill_description field)

API

curl https://api.brin.sh/skill/napoleond%2Fsensitive-browser%2Fsensitive-browser

FAQ: how to interpret this assessment

Common questions teams ask before deciding whether to use this skill in agent workflows.

Is napoleond/sensitive-browser/sensitive-browser safe for AI agents to use?

napoleond/sensitive-browser/sensitive-browser currently scores 28/100 with a suspicious verdict and low confidence. The goal is to protect agents from high-risk context before they act on it. Treat this as a decision signal: higher scores suggest lower observed risk, while lower scores mean you should add review or block this skill.

How should I interpret the score and verdict?

Use the score as a policy threshold: 80–100 is safe, 50–79 is caution, 20–49 is suspicious, and 0–19 is dangerous. Teams often auto-allow safe, require human review for caution/suspicious, and block dangerous.

How does brin compute this skill score?

brin evaluates four dimensions: identity (source trust), behavior (runtime patterns), content (malicious instructions), and graph (relationship risk). Analysis runs in tiers: static signals, deterministic pattern checks, then AI semantic analysis when needed.

What do identity, behavior, content, and graph mean for this skill?

Identity checks source trust, behavior checks unusual runtime patterns, content checks for malicious instructions, and graph checks risky relationships to other entities. Looking at sub-scores helps you understand why an entity passed or failed.

Why does brin scan packages, repos, skills, MCP servers, pages, and commits?

brin performs risk assessments on external context before it reaches an AI agent. It scores that context for threats like prompt injection, hijacking, credential harvesting, and supply chain attacks, so teams can decide whether to block, review, or proceed safely.

Can I rely on a safe verdict as a full security guarantee?

No. A safe verdict means no significant risk signals were detected in this scan. It is not a formal guarantee; assessments are automated and point-in-time, so combine scores with your own controls and periodic re-checks.

When should I re-check before using an entity?

Re-check before high-impact actions such as installs, upgrades, connecting MCP servers, executing remote code, or granting secrets. Use the API in CI or runtime gates so decisions are based on the latest scan.

Learn more in threat detection docs, how scoring works, and the API overview.

Last Scanned

March 1, 2026

Verdict Scale

safe80–100
caution50–79
suspicious20–49
dangerous0–19

Disclaimer

Assessments are automated and may contain errors. Findings are risk indicators, not confirmed threats. This is a point-in-time assessment; security posture can change.

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