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agents-md-guide

关于在VS Code中使用和支持AGENTS.md标准的指南。当被问及AGENTS.md、自定义指令或仓库级别的AI代理配置时,请参考此指南。

person作者: jakexiaohubgithub

AGENTS.md Guide for VS Code

This skill provides guidance on implementing and using the AGENTS.md standard to provide custom instructions for AI coding agents in VS Code.

Why AGENTS.md?

  • Standardization: Reduces fragmentation from proprietary files like .cursorrules.
  • Interoperability: Works across different AI tools (GitHub Copilot, Cursor, etc.).
  • Efficiency: Saves time by providing structured context (build steps, coding conventions).
  • Consistency: Ensures AI agents follow project-specific protocols.
  • Open Standard: Governed by the Agentic AI Foundation (Linux Foundation).

Mental Model

AGENTS.md acts as a centralized instruction manual for AI coding agents at the repo root.

  • Flow: Repo clone → agent scans for AGENTS.md → parses sections → applies rules during tasks → outputs aligned code.

VS Code Configuration

To enable AGENTS.md support in VS Code:

  1. Enable Setting: Set chat.useAgentsMdFile to true.
  2. Nested Files (Experimental): Set chat.useNestedAgentsMdFiles to true for subfolder instructions.

How to Implement AGENTS.md

  1. Location: Place AGENTS.md at the root of your repository.
  2. Structure: Use clear sections:
    • ## Environment: Setup and build instructions.
    • ## Coding Style: Linting, formatting, and architectural rules.
    • ## Testing: How to run and write tests.
  3. Keep it Concise: Avoid overly verbose rules.

Real-World Scenarios

  • Open-source Maintenance: AI agents auto-generate PRs following style guides.
  • Enterprise Code Reviews: Teams use repo-level rules during Copilot-assisted edits.
  • Indie Dev Prototyping: Automate build and test cycles with tools like Cursor or Codex.

Survival Kit

  • Day 0: Clone a repo with AGENTS.md; ensure chat.useAgentsMdFile is enabled in VS Code.
  • Week 1: Create a basic AGENTS.md in a test repo and iterate on sections.
  • Week 2: Add nested files if needed using experimental settings.

Security & Risks

  • No Secrets: Never include API keys or credentials.
  • Goal Hijacking: Be aware that instruction files can steer agent behavior. Review instructions before running autonomous tasks in untrusted repos.

References