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/triuzzi/brave-devtools-mcp/agents-mdgit clone --depth 1 https://github.com/triuzzi/brave-devtools-mcpWrote 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/instructions/triuzzi/brave-devtools-mcp/agents-md)<a href="https://agentmods.dev/instructions/triuzzi/brave-devtools-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/triuzzi/brave-devtools-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00236 | $0.00236 |
| Opus 5 | $0.00118 | $0.00118 |
| Sonnet 5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
brave-devtools-mcp AGENTS.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 3d 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.
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.
This is a copy
100% identical to chrome-devtools-mcp AGENTS.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
This repository contains an MCP server and CLI for Chrome DevTools.
Instructions
- Use only scripts from
package.jsonto run commands. - Use
npm run buildto run tsc and test build. - Use
npm run testto build and run tests, run all tests to verify correctness. - Use
npm run test path-to-test.tsto build and run a single test file, for example,npm run test tests/McpContext.test.ts. - Use
npm run formatto fix formatting and get linting errors. - Never modify
third_party/devtools-frontendexcept for experimentation: it is a git submodule, a mirror of the actual codebase.
Rules for TypeScript
- Do not use
anytype. - Do not use
askeyword for type casting. - Do not use
!operator for type assertion. - Do not use
// @ts-ignorecomments. - Do not use
// @ts-nocheckcomments. - Do not use
// @ts-expect-errorcomments. - Prefer
for..ofinstead offorEach.
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.
- 3d ago First seen · 21 lines · 236 tokens per session scan A 9087ba513381
brave-devtools-mcp AGENTS.md is an instructions file published in the GitHub repository triuzzi/brave-devtools-mcp (25 stars, last pushed 5d ago), licensed Apache-2.0. It adds 236 tokens to every session, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to chrome-devtools-mcp AGENTS.md, differing in 0 lines, and is treated as a copy.
Other instructions, from other repositories
chrome-devtools-mcp AGENTS.md
AGENTS.md instructions for ChromeDevTools/chrome-devtools-mcp, covering instructions and rules for typescript.
neobrowser AGENTS.md
Instructions for pitiflautico/neobrowser, covering agents.md — orientation for ai agents & contributors, build, run, test (rust — primary), how it works (rust module map), conventions and ci and release gates.
webview-devtools-mcp AGENTS.md
AGENTS.md instructions for ilharp/webview-devtools-mcp, covering which files you can freely rewrite, the patch stack is managed by hand, repo layout at a glance and build.
chrome-local-mcp AGENTS.md
AGENTS.md instructions for thronapple/chrome-local-mcp, covering agents.md, project overview, build & run, register with codex and register with codex cli.
chrome-console-log-mcp-server AGENTS.md
AGENTS.md instructions for ONLYHUMN/chrome-console-log-mcp-server, a project described as: Capture browser console logs via the Chrome DevTools Protocol and expose them to an MCP client over SSE.
chrome-remote-debugging-mcp CLAUDE.md
Claude Code instructions for danilin-em/chrome-remote-debugging-mcp, covering claude.md, what this is, commands, architecture and conventions.