Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add tmchow/agent-skills --skill camofox-cloaked-browsergit clone --depth 1 https://github.com/tmchow/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/tmchow/agent-skills/camofox-cloaked-browser)<a href="https://agentmods.dev/skills/tmchow/agent-skills/camofox-cloaked-browser"><img src="https://agentmods.dev/badge/skills/tmchow/agent-skills/camofox-cloaked-browser/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/tmchow/agent-skills/camofox-cloaked-browser"><img src="https://agentmods.dev/badge/skills/tmchow/agent-skills/camofox-cloaked-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 8 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high YARA Match · line 109 YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
- medium MCP Rug Pull · line 5 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium Data Exfiltration · line 9 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium MCP Rug Pull · line 116 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium Data Exfiltration · line 246 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Rogue Agent · line 482 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 513 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- low Supply Chain · line 9 Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.Fix: Avoid downloading and executing remote scripts. Use trusted packages from PyPI/npm. If remote fetch is required, verify checksums and use HTTPS.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00106 | $0.04985 |
| Opus 5 | $0.00053 | $0.02492 |
| Sonnet 5 | $0.00021 | $0.00997 |
| Haiku 4.5 | $0.00011 | $0.00498 |
Grade B, and why
camofox-cloaked-browser scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
curl -fsS -X POST "$BASE/tabs/$TAB_ID/back" -H 'Content-Type: application/json' "${AUTH_HEADER[@]}" -d "{\"userId\":\"$USER_ID\"}" Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
web search, text extraction, curl fetches, or ordinary browser automation. How it starts
The opening of the file, as written. The whole thing — 541 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Camofox Cloaked Browser
When to use
Use this skill only when the task needs Camofox/Camoufox specifically:
- user names Camofox, Camoufox, anti-detection browsing, cloaked browser, browser fingerprint spoofing, or stealth browsing
- a site is likely to block normal Playwright/Chrome automation
- the task needs stable accessibility refs from a Camofox browser server
- OpenClaw has the
camofox-browserplugin/tools available
Do not use it for ordinary web search, simple page fetches, static text extraction, or normal browser automation. Use the cheaper default stack unless cloaking is actually load-bearing.
If the user names another browser target explicitly — Browserbase, Selkies, a tailnet browser, normal Hermes browser, Chrome DevTools, etc. — stop and use that target/skill instead. Do not silently route through Camofox.
Default target
Default local server:
http://127.0.0.1:9377
Equivalent localhost URL is usually fine:
http://localhost:9377
Prefer 127.0.0.1 in examples to avoid IPv6/localhost oddities.
There is no container target in this skill. Do not mention or rely on container names; this skill is about the npm server and OpenClaw plugin/API.
Operating model
Camofox Browser is a Node server and OpenClaw plugin wrapper around Camoufox, a Firefox-based anti-detection browser.
Primary local startup:
npx -y @askjo/camofox-browser
# serves http://127.0.0.1:9377 by default
Alternative cloned-repo startup:
git clone https://github.com/jo-inc/camofox-browser
cd camofox-browser
npm install
npm start
Alternative global install:
npm install -g @askjo/camofox-browser
camofox-browser
npm install / npx downloads the Camoufox browser binary on first run via the package postinstall unless CAMOUFOX_EXECUTABLE points to an existing compatible Camoufox bundle. Expect roughly a few hundred MB for the browser payload.
OpenClaw plugin mode
If OpenClaw has the upstream plugin installed, prefer the plugin tools over raw curl because they auto-manage userId from ctx.agentId, use sessionKey, and can auto-start the server.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 541 lines · 106 tokens per session scan B 128e212d3b2e
camofox-cloaked-browser is a skill published in the GitHub repository tmchow/agent-skills (64 stars, last pushed 25d ago), licensed MIT. It adds 106 tokens to every session and 4,985 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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