Steering is delivered at priority `now`, which makes the CLI **abort**
the running cycle instead of folding the message into it. The aborted
cycle ends with an ordinary human-origin `result`, so we answered
`session/prompt` with `end_turn` while the steered work was still going
— its remaining tool calls, its answer, and its file edits then streamed
with no turn in flight.
A steered turn's results now only record their outcome, and the turn
settles at the SDK's `idle` — the only signal spanning both the
interrupted and the steered cycle. The injected message's replay tells
them apart: an idle arriving before it means the steered cycle hasn't
started, so it is swallowed. `session/cancel` and the next prompt still
settle the turn early, with the recorded stop reason.
Four steering tests cover the interrupt, an early idle, the next-prompt
hand-off, and cancel.
## Description
Testing this agent means wiring it into an editor's ACP integration,
which is an overkill when you just want to watch the JSON and reply with
JSON. This adds a second example next to `examples/steering.ts`: a
minimal interactive ACP client that spawns the built agent, prints every
JSON-RPC message in both directions, and turns what you type into
prompts.
```
npm run build
npm run example:simple-client
```
All four ways a client can get a message to this agent are reachable
from the prompt"
| Input | Wire |
| --- | --- |
| `<text>` | `session/prompt`; buffered client-side if a turn is running
|
| `!steer <text>` | `_session/steering`, injected into the running turn
|
| `!queue <text>` | `session/prompt` sent mid-turn, so the agent queues
it |
| `!cancel`, Ctrl-C | `session/cancel` |
## Additional options
* `--debug-port=<port>` rebuilds with source maps and starts the agent
under
* `--inspect-brk`, paused, so a debugger can attach and step through
`src/*.ts` —
replacing a hand-written editor run configuration. Teardown cancels any
live
turn, closes the agent's stdin (its clean-exit path), waits, and only
then
closes the connection, so neither side dies of EPIPE and nothing is
orphaned.
