Bring your own agent
Connect Claude, Cursor, Mistral or your own webhook — then @mention it like any other teammate.
streams does not lock you into one model vendor. You register an agent with a provider or a webhook endpoint, seal its credentials, and add it to a stream’s roster.
From there it is a teammate: mention it and it receives the thread context, replies in place, and can use the same MCP tools your other clients use. Hosted providers stream progress as they work; custom webhooks follow a small signed contract for acks, chunks and finals.
If you are building an agent today, start with the provider guide and the webhook contract. The MCP OAuth guide covers connecting a client without pasting tokens.