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AGENTS.md examples from real projects

How real projects brief Codex, Cursor and every other agent that reads AGENTS.md.

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AWSAGENTS.md

aws-cli

aws/aws-cli/AGENTS.md

This repository contains the AWS Command Line Interface (AWS CLI). Make small, well-tested changes that match the existing patterns in the surrounding code. This codebase includes vendored copies of botocore…

17k5d agoReviewMountCreate a free account to mount
AWSAGENTS.md

aws-cdk

aws/aws-cdk/AGENTS.md

Contributor-focused guide for AI agents working on the AWS CDK codebase. AWS CDK is an open-source framework that lets developers define cloud infrastructure in code and provision it through AWS CloudFormation. This is a TypeScript monorepo that uses jsii to generate bindings for Python, Java, .NET, and Go. Constructs follow a layered model: L1 (auto-generated CloudFormation wrappers), L2 (intent-based APIs with smart defaults), and L3 (multi-resource patterns). See CONTRIBUTING.md for the full contributor guide. You are a CDK contributor. You…

13k19d agoReviewMountCreate a free account to mount
AWSAGENTS.md

amazon-sagemaker-examples

aws/amazon-sagemaker-examples/AGENTS.md

Guidance for AI coding agents (Cursor, GitHub Copilot, Claude Code, Amazon Q Developer, Kiro, Codex, Gemini CLI, etc.) working in this repository. Follows the AGENTS.md convention (https://agents.md). This repository contains example notebooks for the Amazon SageMaker Python SDK v3. pip install sagemaker installs v3. SDK v3 is a modular redesign and is not backward compatible with v2. It is split into: Generate SageMaker Python SDK v3 code by default. Produce v2 code only when the user explicitly asks for "v2"…

11k2mo agoReviewMountCreate a free account to mount
AWSAGENTS.md

aws-emulator

aws/aws-emulator/AGENTS.md

Developer and agent guide for this EmulatorCore-generated emulator project for aws services. (The repository's README.md is the project's own, user-facing document; this file is the working guide for anyone — human or agent — editing the emulator.) This project uses the per-crate layout: every service is its own Cargo crate, so changing one service recompiles only that crate instead of the whole emulator. When .emulator/license-header exists, every new .rs file starts with its contents, copied exactly, followed by a blank…

8.3k6d agoReviewMountCreate a free account to mount
AWSAGENTS.md

karpenter-provider-aws / upgrading

aws/karpenter-provider-aws/website/content/en/docs/upgrading/AGENTS.md

These rules apply when you add or edit the per-version notes in upgrade-guide.md (the ### Upgrading to <version>+ sections). Rank notes within each group by impact as well. For metrics, that means how much observability breaks, e.g. how widely the metric is used and how many queries the change breaks. - This file isn't published: website/hugo.yaml lists AGENTS.md in ignoreFiles.

No other project uses it yet

7.7k37d agoReviewMountCreate a free account to mount
AWSAGENTS.md

jsii

aws/jsii/AGENTS.md

AI agent contributor guide for the aws/jsii repository.

No other project uses it yet

2.9k34d agoReviewMountCreate a free account to mount
AWSAGENTS.md

aws-lambda-web-adapter

aws/aws-lambda-web-adapter/AGENTS.md

No summary in the file. Open it to read it.

2.8k8mo agoReviewMountCreate a free account to mount
AWSAGENTS.md

aws-sdk-java-v2

aws/aws-sdk-java-v2/AGENTS.md

This is the AWS SDK for Java 2.x: service clients generated at build time from AWS service models, plus the hand-written core runtime, HTTP clients, and high-level libraries they run on. The files under docs/guidelines/ add depth, and each section says when to read one. The Maven reactor has about 500 modules. Run Maven through ./mvnw from the repository root, scoped with -pl to the modules you changed. Files under any target/generated-sources/ directory are regenerated by every build, so an…

2.6k6d agoReviewMountCreate a free account to mount
AWSAGENTS.md

sagemaker-python-sdk

aws/sagemaker-python-sdk/AGENTS.md

Guidance for AI coding agents (Cursor, GitHub Copilot, Claude Code, Amazon Q Developer, Kiro, Codex, Gemini CLI, etc.) working in this repository — the source of the Amazon SageMaker Python SDK. Follows the AGENTS.md convention (https://agents.md). This file has two audiences: 1. Contributors' agents editing SDK source, tests, and docs in this repo. 2. Any agent that reads this repo as a reference for how to use the SDK — so the usage guidance (v3 by default) is stated here…

Steady6 mentions in 2 weeks

No other project uses it yet

2.3k3mo agoReviewMountCreate a free account to mount
CLAUDE.md vs AGENTS.md

About AGENTS.md

What is AGENTS.md?

An open format for instructions to coding agents, read by Codex, Cursor and others. Think of it as a README written for agents.

Where does it go?

At the repository root, with more specific files in subdirectories. Agents read the one closest to the file they're editing.

What should it contain?

Setup and test commands, code style, and the rules a new contributor would need to know.

Does Claude Code read it?

Claude Code reads CLAUDE.md. A one-line CLAUDE.md that points at AGENTS.md covers both.