Letta

Letta Code mods

Mods are local code files or npm packages that add commands, tools, event hooks, permission policies, providers and UI to Letta Code.

slash commandstoolshookspermission policiesmodel providersUI

At a glance

Manifest file: None documented
Install: letta install npm:@scope/package-name
Official directory: Mods catalog
Your own marketplace: Not documented

Links

Official documentation Browse Mods catalog Letta: standards support, subagents and hooks

Other plugin systems

Claude Code plugins Codex plugins Gemini CLI extensions Cursor plugins GitHub Copilot CLI plugins Factory Droid plugins OpenHands plugins Junie CLI extensions Kiro powers Qwen Code extensions OpenCode plugins Amp plugins Cline plugins pi packages Hermes Agent plugins OpenClaw plugins goose extensions Zed extensions

Get the weekly agent stack update

New official MCP servers, spec changes and harness releases, checked against the source. One email a week, no fluff.

Reviewed Oct 9, 2026.