Tools

Plugins, skills, and individual tools agents can call.

Plugin development

• Plugin SDK — write tools and agents in TypeScript
• Plugin Manifest — declare permissions, exports, config
• Testing Helpers — mock runtime + assertions

Skills

Specialized instruction sets loaded when relevant. See Skills and SKILL.md template.

Notable bundled tools

• Web Search — DuckDuckGo, Brave, Tavily, SerpApi, SearXNG
• PDF — read + search local PDFs
• Apply Patch — unified diffs to files

Installing user plugins

# Local directory
vesper plugin install ~/dev/my-plugin

# Inspect bundled
vesper plugin list --all
vesper plugin info @openvesper/plugin-web-search

Tool permissions

See Approvals. Mutation, filesystem, and shell tools require user OK unless an auto-allow rule matches.