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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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promptfooReads credentialsAGENTS.md

promptfoo

promptfoo/promptfoo/AGENTS.md

team integration tests npm run test:app -- src/pages/path/to/test.test.tsx --run # Run a specific frontend test file from repo root npx vitest path/to/test # Run a specific backend test file # Development

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promptfooReads credentialsAGENTS.md

promptfoo / test

promptfoo/promptfoo/test/AGENTS.md

failures - Use `--sequence.seed=12345` to reproduce a specific order ## Writing Tests **Reference files:** - **Vitest (frontend)**: `src/app/src/hooks/usePageMeta.test.ts` - explicit imports - **Vitest (backend)**: `test/assertions/contains.test.ts` - explicit imports All tests require explicit imports from vitest

Steady24 mentions in 2 weeks

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icsharpcodeAGENTS.md

ILSpy

icsharpcode/ILSpy/AGENTS.md

decompiler builds). In no solution and not run by CI; see `TestTools/README.md` Windows-only frontends, packaging, and tests: - `ILSpy.AddIn/`, `ILSpy.AddIn.VS2022/` — Visual Studio add-ins (`net472`) - `ILSpy.Installer/` — WiX installer (`net472

Steady6 mentions in 2 weeks

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27k6y agoReviewMountCreate a free account to mount
goauthentikAGENTS.md

authentik

goauthentik/authentik/AGENTS.md

docs live under `website/docs/developer-docs/` and are published at <https://docs.goauthentik.io/docs/developer-docs/>: - `setup/full-dev-environment.mdx` — full backend + frontend dev environment. - `setup/frontend-dev-environment.mdx` — web-only setup. - `setup/debugging.mdx` — attaching a debugger (VS Code config included). - `docs/style-guide.mdx

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26k3mo agoReviewMountCreate a free account to mount
goauthentikAGENTS.md

authentik / web

goauthentik/authentik/web/AGENTS.md

i18n (do not edit manually) packages/ core/ # Monorepo utilities (paths, environment, version) sfe/ # Standalone Frontend Engine (Rollup-based) test/ unit/ # Node.js unit tests (*.test.ts) browser/ # Playwright browser tests (*.browser.test.ts

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zulipAGENTS.md

zulip

zulip/zulip/AGENTS.md

what to test for UI changes (the file loads automatically when you work on frontend files). The right attitude is: "What could go wrong, and how do I verify that

26k48d agoReviewMountCreate a free account to mount
activepiecesDeletes or force-pushesAGENTS.md

activepieces

activepieces/activepieces/AGENTS.md

bash npm start # Setup dev + start all npm run dev # Frontend + backend npm run lint-dev # Lint with auto-fix (ALWAYS before done) npx turbo run lint --filter= # Lint

Steady6 mentions in 2 weeks

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tursodatabaseAGENTS.md

turso

tursodatabase/turso/AGENTS.md

here are for upstream syncs or harness maintenance. - `postgres/conformance/pg-sqltests/` - `.sqltest` coverage for the PostgreSQL frontend. Tests are meant to pass on both tursopg (`run`) and real PostgreSQL (`run-postgres`). - `testing/cli_tests

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nocobaseAGENTS.md

nocobase

nocobase/nocobase/AGENTS.md

existing code that uses `any`, narrow it to a concrete type whenever feasible. - For frontend components and pages, prefer Ant Design v5 components and follow its conventions. Reference https://ant.design

Steady3 mentions in 2 weeks

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25k2y agoReviewMountCreate a free account to mount
argoprojAGENTS.md

argo-cd

argoproj/argo-cd/AGENTS.md

strictly enforced. You must use `go modules` for dependency management. * **UI (React/TypeScript):** The frontend is written in React and TypeScript. * **Kubernetes Manifests:** Argo CD heavily relies on Kubernetes manifests

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25k20d agoReviewMountCreate a free account to mount
plotlyAGENTS.md

dash

plotly/dash/AGENTS.md

directory: - [COMMANDS.md](.ai/COMMANDS.md) - Build, test, lint - [ARCHITECTURE.md](.ai/ARCHITECTURE.md) - Backend, callbacks, layout - [RENDERER.md](.ai/RENDERER.md) - Frontend, React, Redux - [COMPONENTS.md](.ai/COMPONENTS.md) - Component system - [TESTING.md](.ai/TESTING.md) - Testing patterns - [TROUBLESHOOTING.md](.ai/TROUBLESHOOTING.md) - Common issues

24k6y agoReviewMountCreate a free account to mount
temporalioAGENTS.md

temporal

temporalio/temporal/AGENTS.md

/schema`: database schema definitions for core databases store and visibility store - `/service`: main services (frontend, history, matching, worker, etc.) - `/service/frontend`: frontend service implementation - `/service/history`: history service implementation - `/service/matching`: matching service

24k4mo agoReviewMountCreate a free account to mount
kriasoftAGENTS.md

react-starter-kit

kriasoft/react-starter-kit/AGENTS.md

runtime:** Cloudflare Workers (workerd) – not Bun. Code that ships must run on Workers APIs. - **Frontend:** React 19, TanStack Router, TanStack Query, Jotai, shadcn/ui (new-york), Tailwind CSS v4 - **Backend:** Hono

24k3mo agoReviewMountCreate a free account to mount
marimo-teamAGENTS.md

marimo

marimo-team/marimo/AGENTS.md

marimo Development Guidelines marimo is a reactive notebook for Python with a modern web frontend. ## Your primary responsibility is to the project and its users Being an open source library

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23k3mo agoReviewMountCreate a free account to mount
marimo-teamAGENTS.md

marimo / frontend

marimo-team/marimo/frontend/AGENTS.md

Frontend Guidelines ## Key Principles - Write clear, maintainable code over clever/short syntax - Use TypeScript with proper typing for all code - Use functional programming patterns; avoid classes - Favor composition over inheritance - Reduce

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23k3mo agoReviewMountCreate a free account to mount
Skyvern-AIAGENTS.md

skyvern

Skyvern-AI/skyvern/AGENTS.md

service layers - `/utils`: Common utility functions - `/webeye`: Web interaction and browser automation - `/skyvern-frontend`: Frontend application - `/integrations`: Third-party service integrations - `/alembic`: Database migrations - `/scripts`: Utility and deployment scripts ## Coding Conventions

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23k8mo agoReviewMountCreate a free account to mount
1Panel-devReads credentialsAGENTS.md

MaxKB

1Panel-dev/MaxKB/AGENTS.md

agentic workflows, and MCP tool-use. Backend is Python 3.11 / Django 5.2 / LangChain; frontend is Vue 3 / Vite. Data layer is PostgreSQL + pgvector and Redis; Celery for async work

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23k23mo agoReviewMountCreate a free account to mount
comet-mlReads credentialsAGENTS.md

opik

comet-ml/opik/AGENTS.md

codebase. Main areas: - `apps/opik-backend`: Java backend (source in `src/main/java`, tests in `src/test/java`). - `apps/opik-frontend`: React/TypeScript frontend (`src` and related assets/config). - `apps/opik-documentation`: documentation website and generated API docs. - `sdks/python`, `sdks/typescript`, `sdks/opik_optimizer

Steady19 mentions in 2 weeks

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23k3mo agoReviewMountCreate a free account to mount
foremAGENTS.md

forem

forem/forem/AGENTS.md

Follow Test Patterns**: Use `create(:factory)` syntax (FactoryBot) and standard RSpec expectations. - **Frontend vs Backend**: We are currently focused on robust backend regression tests. Frontend changes require more manual user

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23k4mo agoReviewMountCreate a free account to mount
openobserveReads credentialsAGENTS.md

openobserve

openobserve/openobserve/AGENTS.md

clippy::too_many_lines -W clippy::cognitive_complexity -W clippy::excessive_nesting -D warnings`. ## Frontend (web/) - After every change under `web/`, run `npm run format:check` from `web/` before considering

23k2d 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.