Find the best CLAUDE.md, AGENTS.md and Claude skills

MicrosoftAGENTS.md

vscode

microsoft/vscode/AGENTS.md

This file provides instructions for AI coding agents working with the VS Code codebase. For detailed project overview, architecture, coding guidelines, and validation steps, see the Copilot Instructions.

MicrosoftSkill

github-copilot-upgrader

microsoft/vscode/extensions/copilot/.agents/skills/github-copilot-upgrader/SKILL.md

Use this to update the Github Copilot CLI/SDK

MicrosoftSkill

launch

microsoft/vscode/extensions/copilot/.agents/skills/launch/SKILL.md

Launch and automate VS Code Insiders with the Copilot Chat extension using @playwright/cli via Chrome DevTools Protocol. Use when you need to interact with the VS Code UI, automate the chat panel, test the extension UI, or take screenshots. Triggers include 'automate VS Code', 'interact with chat', 'test the UI', 'take a screenshot', 'launch with debugging'.

MicrosoftAGENTS.md

vscode / references

microsoft/vscode/extensions/copilot/assets/prompts/skills/agent-customization/references/agents.md

Custom personas with specific tools, instructions, and behaviors. Use for orchestrated workflows with role-based tool restrictions. Use reasoning-effort to set the reasoning level for the custom agent's model: The selected model must support the configured level. If omitted, the runtime resolves the effort from the model configuration and, when applicable, the parent agent. Sources: built-in aliases, specific tools, MCP servers (<server>/*), extension tools. Special: [] = no tools, omit = defaults. Body reference: #tool:<name> To discover available tools, check your…

No other project uses it yet

MicrosoftSkill

agent-customization

microsoft/vscode/extensions/copilot/assets/prompts/skills/agent-customization/SKILL.md

**WORKFLOW SKILL** — Create, update, review, fix, or debug VS Code agent customization files (.instructions.md, .prompt.md, .agent.md, SKILL.md, copilot-instructions.md, AGENTS.md). USE FOR: saving coding preferences; troubleshooting why instructions/skills/agents are ignored or not invoked; configuring applyTo patterns; defining tool restrictions; creating custom agent modes or specialized workflows; packaging domain knowledge; fixing YAML frontmatter syntax. DO NOT USE FOR: general coding questions (use default agent); runtime debugging or error diagnosis; MCP server configuration (use MCP docs directly); VS Code extension development. INVOKES: file system tools (read/write customization files), ask-questions tool (interview user for requirements), subagents for codebase exploration. FOR SINGLE OPERATIONS: For quick YAML frontmatter fixes or creating a single file from a known pattern, edit the file directly — no skill needed.

MicrosoftSkill

chronicle

microsoft/vscode/extensions/copilot/assets/prompts/skills/chronicle/SKILL.md

Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting session data.

MicrosoftSkill

create-agent

microsoft/vscode/extensions/copilot/assets/prompts/skills/create-agent/SKILL.md

Create a custom agent (.agent.md) for a specific job.

Often used withdeploy-platform·improve·create-skill

MicrosoftSkill

create-hook

microsoft/vscode/extensions/copilot/assets/prompts/skills/create-hook/SKILL.md

Create a hook (.json) to enforce policy or automate agent lifecycle events.

Often used withreview-bugbot·update-cli-config·migrate-to-skills

MicrosoftSkill

create-instructions

microsoft/vscode/extensions/copilot/assets/prompts/skills/create-instructions/SKILL.md

Create an instructions file (.instructions.md) for a project rule or convention.

MicrosoftSkill

create-prompt

microsoft/vscode/extensions/copilot/assets/prompts/skills/create-prompt/SKILL.md

Create a reusable prompt file (.prompt.md) for a common task.

MicrosoftSkill

create-skill

microsoft/vscode/extensions/copilot/assets/prompts/skills/create-skill/SKILL.md

Create a reusable skill (SKILL.md) that packages a workflow.

Often used withreview-bugbot·migrate-to-skills·update-cli-config

MicrosoftSkill

init

microsoft/vscode/extensions/copilot/assets/prompts/skills/init/SKILL.md

Generate or update chat customization files for AI coding agents

Often used withdaily-arxiv·exp-eval·exp-run

MicrosoftSkill

migrate-customizations

microsoft/vscode/extensions/copilot/assets/prompts/skills/migrate-customizations/SKILL.md

Guide a safe, reversible migration of VS Code agent customizations when launched from the Agent Customizations Migrations page with VS Code-generated migration context.

No other project uses it yet

MicrosoftSkill

record-video

microsoft/vscode/extensions/copilot/assets/prompts/skills/record-video/SKILL.md

Record a short WebM video of a web page or web-based app with Playwright's page.screencast, demonstrating a feature or bug fix. Use when asked to record evidence, demo a change, show that it works, record a video, or capture a screencast.

MicrosoftSkill

troubleshoot

microsoft/vscode/extensions/copilot/assets/prompts/skills/troubleshoot/SKILL.md

Investigate unexpected chat agent behavior by analyzing direct debug logs in JSONL files. Use when users ask why something happened, why a request was slow, why tools or subagents were used or skipped, or why instructions/skills/agents did not load.

Often used withecosystem-reference·skill-routing·agent-runtime

MicrosoftCopilot instructions

vscode / copilot

microsoft/vscode/extensions/copilot/.github/copilot-instructions.md

This is the GitHub Copilot Chat extension for Visual Studio Code - a VS Code extension that provides conversational AI assistance, a coding agent with many tools, inline editing capabilities, and advanced AI-powered features for VS Code. Choose validation based on the scope and risk of the change. Prefer existing diagnostics and the smallest targeted tests that cover the changed behavior. Do not start start-watch-tasks, run a full build, or make type checking a prerequisite for targeted tests solely as…

No other project uses it yet

MicrosoftAGENTS.md

vscode / copilotcli

microsoft/vscode/extensions/copilot/src/extension/chatSessions/copilotcli/AGENTS.md

This folder contains the Copilot CLI integration for VS Code Chat. It enables users to open a new Chat window and interact with a Copilot CLI agent instance directly within VS Code. VS Code provides the UI, Copilot CLI SDK provides the smarts. Important: The Copilot CLI agent functionality is powered by the @github/copilot/sdk package. See the SDK package for full type definitions. The integration follows VS Code's platform layering pattern with three layers:

No other project uses it yet

MicrosoftAGENTS.md

vscode / common

microsoft/vscode/extensions/copilot/src/platform/authentication/common/AGENTS.md

IAuthenticationService manages GitHub and Copilot authentication. It provides GitHub sessions (OAuth tokens) and Copilot tokens (CAPI tokens). getGitHubSession requires a kind parameter. Choose thoughtfully: Returns AuthenticationSession (never undefined). Throws if the user cancels. Requires createIfNone with a StrictAuthenticationPresentationOptions containing a localized detail string explaining why auth is needed: Same as above but forces re-authentication even if a session exists. Use when the current token has lost authorization: Returns AuthenticationSession | undefined. Never shows UI. Use when auth is optional: For…

No other project uses it yet

MicrosoftCopilot instructions

vscode

microsoft/vscode/.github/copilot-instructions.md

Visual Studio Code is built with a layered architecture using TypeScript, web APIs and Electron, combining web technologies with native app capabilities. The codebase is organized into key architectural layers: The core architecture follows these principles: - Layered architecture - from base, platform, editor, to workbench - Dependency injection - Services are injected through constructor parameters - If non-service parameters are needed, they need to come before the service parameters - Contribution model - Features contribute to registries and extension…

No other project uses it yet

MicrosoftSkill

accessibility

microsoft/vscode/.github/skills/accessibility/SKILL.md

Primary accessibility skill for VS Code. REQUIRED for new feature and contribution work, and also applies to updates of existing UI. Covers accessibility help dialogs, accessible views, verbosity settings, signals, ARIA announcements, keyboard navigation, and ARIA labels/roles.

Often used withtool-rename-deprecation·project-preferences·create-media-pack