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Tools, skills, and extension data

Tools

Built-in tools (read, search, edit, bash, …) run through the agent loop under tools.approvalMode and related policy. Edit paths share hashline verification. Catalog: Tools reference.

Skills

Filesystem skill packages (e.g. SKILL.md trees) discovered under the active profile’s skill dir. A project-local skills directory is never scanned. Unreadable or malformed skill files surface load warnings. See Skills.

Plugins

veyyon plugin / marketplaces install bundles of skills, MCP, hooks, and related assets. See Plugins.

MCP

External tools via Model Context Protocol: client config in the profile’s mcp.json (there is no project scope). See MCP.

Hooks

TypeScript modules with pi.on(...), not JSON command tables. See Hooks.