One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
MicrosoftCopilot instructionsmicrosoft/react-native-windows/.github/copilot-instructions.md
This file provides guidance to GitHub Copilot for contributing to the React Native Windows repository. React Native Windows brings React Native to the Windows platform, supporting both UWP and Win32…
No other project uses it yet
MicrosoftSkillmicrosoft/react-native-windows/.github/skills/rnw-integration/SKILL.md
Automate React Native Windows integration with upstream React Native nightly versions. Use when: upgrading RNW to a newer React Native nightly, finding target nightly versions, preparing integration PRs, updating package dependencies.
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/backend-test-conventions.mdc
Backend Python test conventions (pytest)
No other project uses it yet
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/dataframe-serialization.mdc
All DataFrame-to-records conversion for API responses, streaming events, or frontend-visible data MUST use the centralized helpers in data_formulator.datalake.parquet_utils: pandas.DataFrame.to_json(orient='records') defaults to date_format='epoch', which serializes datetime columns as epoch milliseconds (e.g. 1773532800000). The frontend interprets these as plain numbers and renders them with commas (1,773,532,800,000) instead of formatted dates. df_to_safe_records enforces date_format='iso' and default_handler=str, ensuring datetimes become ISO-8601 strings and exotic types degrade gracefully. Internal data processing that never reaches the frontend or JSON serialization (e.g. Kusto SDK metadata parsing, Vega-Lite…
No other project uses it yet
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/dev-guides-first.mdc
Require reading dev-guides before development and keeping docs in sync
No other project uses it yet
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/error-response-safety.mdc
Prevent information exposure through exception messages in HTTP responses
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/frontend-test-conventions.mdc
Frontend TypeScript test conventions (Vitest)
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/i18n-no-hardcoded-strings.mdc
No hardcoded UI strings — use i18n translation keys
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/implementation-review-checklist.mdc
Require structural code review after implementation before final response
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/incremental-development-cadence.mdc
Enforce step-by-step implementation with design-doc checks, tests, and i18n after each step
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/language-injection-conventions.mdc
Language injection conventions for LLM Agent prompts
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/log-sanitization.mdc
Prevent sensitive data leakage in server-side log messages
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/package-manager-conventions.mdc
Use Yarn only, never npm/pnpm
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/path-safety.mdc
路径安全编码规范 — 编辑路由/Agent/Loader/Workspace/知识库代码时自动提醒
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/test-driven-workflow.mdc
测试优先开发与测试保护规则。确保新功能/Bug 修复必须有测试覆盖，测试失败时先诊断后修改。
MicrosoftCursor rulemicrosoft/data-formulator/.cursor/rules/unified-error-protocol.mdc
Unified error handling protocol for backend and frontend
MicrosoftSkillmicrosoft/data-formulator/.cursor/skills/error-handling/SKILL.md
统一错误处理系统。在添加 API 端点、修改错误处理、添加前端 API 调用、编写错误相关测试时使用。
MicrosoftSkillmicrosoft/data-formulator/.cursor/skills/language-injection/SKILL.md
LLM Agent 多语言注入规范。在修改 Agent 提示词、添加新的 Agent 端点、处理用户可见的后端消息（message_code）时使用。
MicrosoftSkillmicrosoft/data-formulator/.cursor/skills/path-safety/SKILL.md
服务端路径安全与文件访问编码规范。在编写文件下载路由、Agent 工具（文件读取/目录列出）、数据连接器/Loader、Workspace 路径操作、沙箱配置时使用。
MicrosoftCopilot instructionsmicrosoft/data-formulator/.github/copilot-instructions.md
No summary in the file. Open it to read it.
No other project uses it yet
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
