manage-tools

Manage the `## External Tools` section in AGENTS.md — the curated list of agent skills, MCP servers, and CLIs the project depends on. Auto-detects installed tools from config files, presents a checklist to the user, and writes a minimal structured section with three fixed sub-categories (Agent Skills / MCP Servers / CLIs). Re-runnable for drift detection when the project's toolchain evolves. "manage tools", "external tools", "add MCP", "add CLI", "register skill", "add tool to AGENTS", "list project tools", "update external tools", "project toolchain", Slash trigger: "/manage-tools". Auto trigger: when the user installs a new MCP server (`.mcp.json` changes), adds a project-specific CLI to `package.json`/`Brewfile`/`mise.toml`, or mentions a shared tool in conversation.