copilot-vscodelisted

# SKILL: VS Code Copilot Platform > Load when the task concerns custom agent files (`.agent.md`), tool selection, context strategy, > subagents, handoffs, MCP servers in VS Code, SKILL.md configuration, or any VS Code Copilot feature. > > Official documentation: https://code.visualstudio.com/docs/copilot > GitHub source: https://github.com/microsoft/vscode-docs/tree/main/docs/copilot > Use `#fetch <url>` in chat to read any page listed in the index at the bottom of this skill. ## When to Load This Skill - Creating or reviewing a `.agent.md` file - Choosing which tools to include (least-privilege applies — see ai-security SKILL) - Designing a subagent workflow or handoff chain - Configuring MCP servers in `.vscode/mcp.json` - Setting up custom instructions or `copilot-instructions.md` - Context engineering: what VS Code puts in the context window, and how to control it - Any question about VS Code Copilot agent types, modes, or settings --- ## `.agent.md` Frontmatter — All Valid Fields ```yaml --- description: <string> # shown as placeholder in Chat input; one-sentence role summary name: <string> # display name; if omitted, file name is used tools: [<tool-name>, ...] # allowed tools — see Built-in Tool Names below agents: [<agent-name>, ...] # allowed subagents; '*' = all, [] = none model: <string | string[]> # model name or priority list; if omitted = user's current picker user-invokable: <bool> # show in agents dropdown (def