Maestro is a cross-platform desktop application for running multiple AI coding-assistant sessions in parallel, with each session isolated in its own terminal, branch, and Git worktree. Developers use it to work on several features, fixes, or refactors at once; the catalogue instruction supports that agent workflow.
Borrowing it
Nothing to install: this file belongs to its-maestro-baby/maestro. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/its-maestro-baby/maestro/main/AGENTS.mdgit clone --depth 1 https://github.com/its-maestro-baby/maestroWrote 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/its-maestro-baby/maestro/agents-md)<a href="https://agentmods.dev/instructions/its-maestro-baby/maestro/agents-md"><img src="https://agentmods.dev/badge/instructions/its-maestro-baby/maestro/agents-md/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/instructions/its-maestro-baby/maestro/agents-md"><img src="https://agentmods.dev/badge/instructions/its-maestro-baby/maestro/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.01486 | $0.01486 |
| Opus 5 | $0.00743 | $0.00743 |
| Sonnet 5 | $0.00297 | $0.00297 |
| Haiku 4.5 | $0.00149 | $0.00149 |
Grade A, and why
maestro 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 194 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md - Maestro Coding Guidelines
Build Commands
Frontend
npm install # Install dependencies
npm run dev # Start Vite dev server
npm run build # TypeScript compile + Vite build
npm run preview # Preview production build
Backend
cargo build --release -p maestro-mcp-server # Build MCP server
npm run tauri dev # Run Tauri app in dev mode
npm run tauri build # Build production app
Full Build
npm install
cargo build --release -p maestro-mcp-server
npm run tauri dev
Test Commands
Run All Tests
npm run test # Run all Vitest tests once
npm run test:watch # Run tests in watch mode
Run Single Test
npx vitest run src/components/path/Component.test.tsx
npx vitest run -t "test name pattern"
npx vitest run --reporter=verbose # Verbose output
Run Tests Related to Changed Files
npx vitest run --changed
Lint & Format
TypeScript/React (Biome)
npx @biomejs/biome check . # Check linting
npx @biomejs/biome format . # Check formatting
Rust (Clippy & rustfmt)
cargo clippy # Run Clippy linter
cargo clippy --fix # Auto-fix Clippy warnings
cargo fmt # Format all Rust code
cargo fmt -- src-tauri/src/file.rs # Format specific file
Code Style Guidelines
VERY IMPORTANT: Only apply styling and formatting to lines of code that are new or changed. Never apply styling and formatting to existing code.
TypeScript/React
- Formatting: 100 char line width, 2-space indent
- Imports: Group by 1) React/libraries 2) Tauri APIs 3) Local components 4) Relative paths
- Types: Use explicit types for function parameters and return types
- Components: PascalCase, one component per file, use functional components with hooks
- Variables/Functions: camelCase
- Constants: UPPER_SNAKE_CASE
- Interfaces: Prefix with component name (e.g.,
ButtonProps)
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.
- 9d ago First seen · 194 lines · 1,486 tokens per session scan A a6cb9dd47eae
maestro AGENTS.md is an instructions file published in the GitHub repository its-maestro-baby/maestro (1,172 stars, last pushed 4mo ago), licensed MIT. It adds 1,486 tokens to every session, about $0.0074 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
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.