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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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railsAGENTS.md

rails

rails/rails/AGENTS.md

them should not break others unless there's an explicit dependency. ## Testing Commands ### Running Tests in a Component From within the component directory (preferred method): ```bash cd actionview && bin/test

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go-giteaAGENTS.md

gitea

go-gitea/gitea/AGENTS.md

guidelines-backend.md` for Go, `guidelines-frontend.md` for TS, CSS and Vue, both for templates, `testing.md` for tests, `development.md` for config options and migrations, `guidelines-refactoring.md` for refactors - Before designing a feature or behavior

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ultralyticsAGENTS.md

yolov5

ultralytics/yolov5/AGENTS.md

solution. Avoid impossible-state handling, speculative flags, compatibility shims, policy scaffolding, and unrelated cleanup. Tests are out of scope by default — rely on existing coverage and focused validation; only

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58k3mo agoReviewMountCreate a free account to mount
appwriteAGENTS.md

appwrite

appwrite/appwrite/AGENTS.md

Start per-queue worker and scheduler containers instead | | `docker compose exec appwrite test tests/e2e/Services/[Service]` | Run E2E tests for a service | | `docker compose exec appwrite test tests/e2e/Services/[Service] --filter=[Method

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58k30d agoReviewMountCreate a free account to mount
FuelLabsAGENTS.md

fuel-core

FuelLabs/fuel-core/AGENTS.md

enforces warnings as errors. ## Commands (matrix) | Step | Command | | :--- | :--- | | Setup | `cargo fetch` | | Build | `cargo build` | | Test | `cargo test` | | **Format (required)** | `cargo +nightly-2025-09-28 fmt --all` then `-- --check` | | Lint | `cargo

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ayghriAGENTS.md

i-have-adhd

ayghri/i-have-adhd/AGENTS.md

plugin metadata. | | Documentation | `README.md`, `INSTALL.md`, `.github/readme/`, `.github/install/` | User-facing overview, installation, and translations. | | Verification | `tests/`, `scripts/` | Unit tests, compatibility checks, and evaluation tooling. | | Contribution workflow | `CONTRIBUTING.md`, `.github/pull_request_template.md` | Authorship, labels, safety

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1 project uses a version of this

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BlockAGENTS.md

goose

block/goose/AGENTS.md

Build ```bash cargo build # debug cargo build --release # release just release-binary # release binary ``` ### Test ```bash export GOOSE_DISABLE_KEYRING=1 # avoid system keyring prompts cargo test # all tests cargo

1 project uses a version of this

56k4mo agoReviewMountCreate a free account to mount
TryGhostAGENTS.md

Ghost

TryGhost/Ghost/AGENTS.md

package READMEs. Start with: - [Development setup](docs/contributing/development-setup.md) - [Contribution workflow](docs/contributing/workflow.md) - [Writing codebase documentation](docs/contributing/documentation.md) - [Testing](docs/contributing/testing.md) - [Shipping](docs/contributing/shipping.md) - [Codebase direction](docs/codebase/direction.md) - [Monorepo structure](docs/codebase/monorepo-structure.md) ## Required workflow - Always use `pnpm`, never

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TryGhostAGENTS.md

Ghost / e2e

TryGhost/Ghost/e2e/AGENTS.md

AGENTS.md Read the canonical human documentation before changing this workspace: - [Writing Browser E2E Tests](../docs/contributing/e2e-testing.md) covers test structure, Page Objects, locator priority, waiting, and validation. - The [E2E workspace README](./README.md

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bmad-code-orgAGENTS.md

BMAD-METHOD

bmad-code-org/BMAD-METHOD/AGENTS.md

Running and verifying - To validate skills: `uv run tools/validate_skills.py --strict`. - To run the Python tests: `uv run --frozen python -B -m pytest`. ## Conventions that differ from defaults - Skills, workflows, tasks

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ChromeDevToolsAGENTS.md

chrome-devtools-mcp

ChromeDevTools/chrome-devtools-mcp/AGENTS.md

from `package.json` to run commands. - Use `npm run build` to compile the project and tests with GN and Ninja. - Update `src/BUILD.gn` or `tests/BUILD.gn` whenever adding, renaming, or removing `.ts` files

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Gathin23AGENTS.md

cleanyourtv

Gathin23/cleanyourtv/AGENTS.md

theme's `config.json`, for this TV. Do not edit the repo's docs, tests or other code, and do not open issues or pull requests unless the person asks

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1 project uses a version of this

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mozillaAGENTS.md

pdf.js

mozilla/pdf.js/AGENTS.md

bash npx gulp server ``` Then open http://localhost:8888/web/viewer.html to view the PDF viewer. Test PDFs are available at http://localhost:8888/test/pdfs/?frame ### Building Build for modern browsers: ```bash

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54k22mo agoReviewMountCreate a free account to mount
JetBrainsAGENTS.md

kotlin / analysis

JetBrains/kotlin/analysis/AGENTS.md

ownership with `withValidityAssertion` - Mark experimental APIs with `@KaExperimentalApi`, implementation details with `@KaImplementationDetail` ## Working with Test Data When modifying test data files or running generated tests (`*Generated`) that compare output against

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54k9d agoReviewMountCreate a free account to mount
JetBrainsAGENTS.md

kotlin / compiler

JetBrains/kotlin/compiler/AGENTS.md

mostly related to FIR (`compiler/fir/`), use `FIR: ` prefix in the commit subject line. - **Test-before-fix**: When fixing an issue and adding a test, commit the test data

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expoAGENTS.md

expo

expo/expo/AGENTS.md

Read first 1. Read [CONTRIBUTING.md](./CONTRIBUTING.md). It is the source for setup, package scripts, tests, documentation, and changesets. Do not copy those steps into a new guide

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expoAGENTS.md

expo

expo/expo/docs/AGENTS.md

these from the `docs/` directory. Run them locally on every docs change: ```sh pnpm test # docs unit tests pnpm test:worker # Cloudflare worker and route tests NODE_ENV=production pnpm

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expoAGENTS.md

expo / tools

expo/expo/tools/AGENTS.md

entry point — it exists, exits 0, and runs nothing, which makes a smoke test look green while doing nothing. ## `et verify` Dispatch, dashboard, and `ls` delegate to the `@expo/verify` engine

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dbeaverAGENTS.md

dbeaver

dbeaver/dbeaver/AGENTS.md

cloudbeaver`) and CLI (GitHub repo `dbvr`). ## Repository Layout - plugins/bundles: main source code, OSGi bundles - test: test plugins - features: Eclipse feature descriptors - product: Eclipse product configurations + aggregator ## Codebase - Language: Java

Steady6 mentions in 2 weeks

No other project uses it yet

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boykopovarAGENTS.md

AnyPS5

boykopovar/AnyPS5/AGENTS.md

body: copy [the template](.github/pull_request_template.md), keep every line, tick every box, and fill `What`, `Tested`, `Depends on` (#N or none), `Fixes` (Fixes #N or none), `Unblocks` (title ID and discussion

Steady18 mentions in 2 weeks

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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.