> ## Documentation Index
> Fetch the complete documentation index at: https://docs.narrative.io/llms.txt
> Use this file to discover all available pages before exploring further.

# No Assistant Turn Yet

> Cannot submit tool_outputs on a conversation that has not yet produced an assistant turn.

**HTTP status:** 400

## Error message

```
cannot submit tool_outputs: conversation {id} has no assistant turn yet
```

## When this error occurs

`POST /agents/conversations/{id}/runs` with `payload.kind = tool_outputs` requires a prior
assistant turn carrying the `tool_use` blocks that the outputs reference. This error means the
conversation has none yet:

* It's a brand-new conversation with no runs at all.
* All prior runs terminated with `final_text` (no tool calls), so there's nothing pending.
* All prior runs failed before producing an assistant turn.

## How to fix

If you intended to start a new conversational turn from the user side, change the payload to
`{"kind": "user_message", "text": "..."}` — `tool_outputs` is exclusively for resuming a
`requires_action` run.

If you intended to resume a paused run, double-check the conversation id — `tool_outputs` is
posted onto the same conversation that contained the `requires_action` run, not a fresh one.