bureau

bureau is a skill for Claude Code, Codex from agentproto/ts. It costs 131 tokens per session (3,642 once invoked), scanned A, original, Apache-2.0.

A standalone browser service that runs a Firefox-based browser with saved sessions and exposes browser controls over a network connection. It also includes commands for managing identities, searching and capturing social data, checking adapters, and running workflows.

In plain words
What is it for?
Use it to start the browser service, manage logged-in browser identities, expose browser tools to clients, run declarative workflows, or check adapter health.
Why use it?
It packages browser automation and its supporting background services into one startable system, so other tools can use saved browser sessions and shared browser capabilities.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node dist/index.js [serve] # start the capability server (default cmd).

Good fit Use it to start the browser service, manage logged-in browser identities, expose browser tools to clients, run declarative workflows, or check adapter health.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/agentproto/ts
agentmods
npx agentmods add skills/agentproto/ts/bureau

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for bureau

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentproto/ts/bureau/github.svg)](https://agentmods.dev/skills/agentproto/ts/bureau)
Your own site
<a href="https://agentmods.dev/skills/agentproto/ts/bureau"><img src="https://agentmods.dev/badge/skills/agentproto/ts/bureau/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.

agentmods 80×15 button for bureau

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentproto/ts/bureau"><img src="https://agentmods.dev/badge/skills/agentproto/ts/bureau.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,642 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 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 Privilege Escalation · line 165
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • medium Data Exfiltration · line 66
    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 75
    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.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00131 $0.03642
Opus 5.5 $0.00052 $0.01457
Sonnet 5.5 $0.00026 $0.00728
Haiku 4.5 $0.00013 $0.00364

Measured 1mo ago against content hash 2d13170e9665, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bureau scanned grade A with 1 finding 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 1mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s http://127.0.0.1:8830/health # {"ok":true,"tools":26}
packages/skill-pack-bureau/src/skills/bureau/SKILL.md · 280 lines

How it starts

The opening of the file, as written. The whole thing — 280 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bureau — the installable browser capability server

Quick start: bureau start

bureau start orchestrates headless Camofox + bureau serve in a single command.

bureau start                              # Camofox :9377 + serve :8830, foreground
bureau start --detach                     # everything in the background, exit 0 if healthy
bureau start bureau-only                  # Camofox assumed up, starts just serve
bureau start --port 9000                  # bureau serve on :9000
bureau start --camofox-port 9400 --detach
bureau start --camofox-cmd "camoufox serve --port 9377" --detach
bureau start --timeout 90                 # max delay 90 s (default 60)

Camofox command resolution (in order): --camofox-cmd → $CAMOFOX_SERVE_CMD → launchctl start com.agentik.camofox (macOS). If nothing resolves, explicit error with instructions. Idempotent: if Camofox is already up, it is not respawned.

Bureau is the standalone, shipped product of the browser stack: one daemon co-located with a stealth Firefox (Camofox), exposing browser capabilities as MCP-over-HTTP plus a CLI. Same daemon runs three ways behind one BureauEndpoint contract — bureau serve on the user's machine (this skill), agentproto-daemon-managed, or as a cloud RuntimeSpec on a Guilde browser-workstation. Zero @guilde deps; it's its own appliance.

Layout

  • App: projects/browser/apps/bureau — the CLI + serve entrypoint (@agstudio/bureau, bin: bureau).
  • Invoke: node projects/browser/apps/bureau/dist/index.js <cmd> (built output), or pnpm --filter=@agstudio/bureau dev <cmd> (tsx watch), or the global bureau bin if linked.
  • State: ~/.agentproto/bureau/ — sessions/ (saved identities, the cookie store), guilde.json (connection), runtime.json (descriptor when hosted). Secrets (platform passwords, gld_ tokens) live in the OS Keychain, never on disk or argv.
  • Ports: daemon :8830 (MCP /mcp + /watch/<tab> screencast + /health); Camofox REST :9377.

Read the full file on GitHub · 280 lines

Changes

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.

  1. 1mo ago First seen · 280 lines · 131 tokens per session scan A 2d13170e9665

Subscribe to this mod's changes

bureau is a skill published in the GitHub repository agentproto/ts (10 stars, last pushed today), licensed Apache-2.0. It adds 131 tokens to every session and 3,642 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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