Borrowing it
Nothing to install: this file belongs to endorhq/rover. 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/endorhq/rover/main/AGENTS.mdgit clone --depth 1 https://github.com/endorhq/roverWrote 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/endorhq/rover/agents-md)<a href="https://agentmods.dev/instructions/endorhq/rover/agents-md"><img src="https://agentmods.dev/badge/instructions/endorhq/rover/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/endorhq/rover/agents-md"><img src="https://agentmods.dev/badge/instructions/endorhq/rover/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 | $0.02138 | $0.02138 |
| Opus 5.5 | $0.00855 | $0.00855 |
| Sonnet 5.5 | $0.00428 | $0.00428 |
| Haiku 4.5 | $0.00214 | $0.00214 |
Grade A, and why
rover AGENTS.md 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 2mo 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
**Always use `launch` (async) and `launchSync` from `packages/core/src/os.ts` to spawn processes. Do not use the Node.js `child_process` API directly.** How it starts
The opening of the file, as written. The whole thing — 258 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI agents (Claude Code, Cursor, etc.) when working with code in this repository.
Project Overview
Rover is a TypeScript-based workspace that helps developers and AI agents spin up services instantly. The project is organized as a monorepo with multiple packages, each serving different purposes in the Rover ecosystem.
Repository Structure
rover/
├── packages/
│ ├── cli/ # Main CLI tool (TypeScript)
│ ├── extension/ # VS Code extension (TypeScript)
│ └── telemetry/ # Telemetry library (TypeScript)
├── package.json # Root workspace configuration
└── AGENTS.md # This file
Essential Development Commands
Workspace Commands (run from root)
# Development workflow
pnpm dev # Start all packages in development mode
# Building
pnpm build # Build all packages
# Testing
pnpm test # Run tests for all packages
# Type checking
pnpm check # TypeScript type checking for all packages
# Linting & Formatting
pnpm lint # Lint all files (with auto-fix)
pnpm format # Format all files
Package-Specific Commands
# CLI package (packages/cli/)
cd packages/cli
pnpm dev # Development mode with watch
pnpm build # Type-check and build
pnpm check # TypeScript type checking
pnpm test # Run tests with Vitest
pnpm test:watch # Run tests in watch mode
pnpm test:ui # Open Vitest UI
pnpm test:coverage # Run tests with coverage
# Extension package (packages/extension/)
cd packages/extension
pnpm compile # Compile TypeScript
pnpm watch # Watch mode for development
pnpm package # Build for production
pnpm test # Run VS Code extension tests
# Telemetry package (packages/telemetry/)
cd packages/telemetry
pnpm dev # Development mode with watch
pnpm build # Build for production
pnpm check # TypeScript type checking
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.
- 2mo ago First seen · 258 lines · 2,138 tokens per session scan A 37d8cab0d0aa
rover AGENTS.md is an instructions file published in the GitHub repository endorhq/rover (273 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 2,138 tokens to every session, about $0.0086 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
rover AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| rover AGENTS.mdendorhq/rover | Instructions file | 273 | 7mo ago | Apache-2.0 | A | 2,138 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |