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 agentmods add instructions/uiuing/browser-agent/claude-mdgit clone --depth 1 https://github.com/uiuing/browser-agentWhat 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 | $0.00059 | $0.00059 |
| Opus 5 | $0.00030 | $0.00030 |
| Sonnet 5 | $0.00012 | $0.00012 |
| Haiku 4.5 | $0.00006 | $0.00006 |
Grade A, and why
browser-agent CLAUDE.md scanned grade A with 0 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 yesterday.
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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
@AGENTS.md
All project guidance lives in AGENTS.md (imported above): setup commands, test suites to run before claiming done, repository layout, architecture invariants, UI and code conventions. Keep AGENTS.md as the single source of truth — update it there, not here.
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.
- yesterday First seen · 4 lines · 59 tokens per session scan A 2eb5909cabb4
browser-agent CLAUDE.md is an instructions file published in the GitHub repository uiuing/browser-agent (53 stars, last pushed 1mo ago), licensed MIT. It adds 59 tokens to every session, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
opentabs AGENTS.md
Instructions for opentabs-dev/opentabs, covering project instructions for codex, project overview, architecture, you are connected to this project's mcp server and workflow skills.
browser-bridge AGENTS.md
Instructions for koltyakov/browser-bridge, covering project guide, data flow, package map, where to find things and method dispatch (extension side).
codex-browser-bridge AGENTS.md
Instructions for DeliciousBuding/codex-browser-bridge, covering agents.md, 仓库级 skill, mcp 工具设计规范, 1. browser 层（src/browser.rs） and 2. mcp 层（src/mcp/ 目录）.
chromeboost GEMINI.md
Instructions for lordamdal/chromeboost, covering chromeboost — gemini instructions, what chromeboost is, when to use chromeboost (be proactive), hard rules — never break these and standard flow pattern.
chromeboost CLAUDE.md
Instructions for lordamdal/chromeboost, covering chromeboost — repo-developer guide, what chromeboost is, repository layout, development commands and tests/antibot/ (run locally; not in ci).
sidebutton AGENTS.md
Instructions for sidebutton/sidebutton, covering agents.md, project, build & run, code style and testing.