Claude skills and agent skills

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'.

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

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

MicrosoftSkill

agent-host-chat-contributions

microsoft/vscode/.github/skills/agent-host-chat-contributions/SKILL.md

Build and review cross-cutting agent-host chat behavior through lifecycle contributions. Use when adding turn lifecycle side effects, prompt or context injection, restored-history transformation, protocol-action observation, or when reviewing changes that add code to AgentSideEffects or AgentService.

MicrosoftSkill

agent-host-logs

microsoft/vscode/.github/skills/agent-host-logs/SKILL.md

Analyze Agent Host debug log exports. Use when given an ah-logs or ahp-logs zip/folder, an Export Agent Host Debug Logs bundle, events.jsonl, AHP JSONL transport logs, Agent Host.log, remote-agenthost.log, or copilot-logs.

MicrosoftSkill

author-contributions

microsoft/vscode/.github/skills/author-contributions/SKILL.md

Identify all files a specific author contributed to on a branch vs its upstream, tracing code through renames. Use when asked who edited what, what code an author contributed, or to audit authorship before a merge. This skill should be run as a subagent — it performs many git operations and returns a concise table.

Often used withtool-rename-deprecation·hygiene·fix-errors

MicrosoftSkill

build-champ-triage

microsoft/vscode/.github/skills/build-champ-triage/SKILL.md

Find out why a build has failed

No other project uses it yet

MicrosoftSkill

chat-customizations-editor

microsoft/vscode/.github/skills/chat-customizations-editor/SKILL.md

Use when working on the Chat Customizations editor — the management UI for agents, skills, instructions, hooks, prompts, MCP servers, and plugins.

MicrosoftSkill

chat-perf

microsoft/vscode/.github/skills/chat-perf/SKILL.md

Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.