Creating Letta Code channels

Use this when adding or debugging Letta Code channel support.

First choice

• User plugin (~/.letta/channels/<id>/) for headless experiments, community plugins, and fast workflow tests.
• First-party channel (src/channels/<id>/) when the channel needs bespoke Desktop UI, custom account snapshots, Slack/Discord-style auto-routing, rich protocol fields, or migration/compatibility shims.

User plugins cannot shadow first-party ids: telegram, slack, and discord are ignored under ~/.letta/channels/. Use ids like telegram-test, whatsapp-community, or custom-chat.

Core workflow