fabro/lib/packages/fabro-api-client
Bryan Helmkamp 1978257aa5
Interrupt a live agent stage's model turn over Petri
Petri 639ce3e added `ControlService::interrupt_firing` and the `LiveTurns`
capability a host installs beside the pause hooks. Fabro now drives it:
`RunControls::interrupt(stage, text)` resolves its stage the way a steer
does (a label, a node name, or the run's one live agent stage) and stops
that stage's current model turn, keeping the session; the text, when
given, is the stage's next input. `engine::run` installs the live-turn set
as a runtime capability, so without it no interrupt could ever land.

The worker maps `run.interrupt` and `run.interrupt_then_steer`, both of
which now carry an optional `stage`, to that call. The control bus is
one-way, so a refusal is recorded the way a refused steer is: a
`run.notice` on the run's stream whose code says why (`no_live_turn` when
Petri refuses a stage with no turn in flight, `no_such_stage`,
`interrupt_refused`).

The server's `POST /runs/{id}/interrupt` and `POST /runs/{id}/steer` with
`interrupt=true` forward the control and answer 202, replacing the 501
`interrupt_unsupported` stub. The interrupt endpoint takes an optional
body (`stage`, `text`), refuses a finished run with 409
`run_not_interruptible`, and forwards an interrupt of a blocked run, since
an agent stage may be running a turn beside the question and the worker
judges each stage itself. `fabro events --pretty` prints the delivered
interrupt and the stage's `attractor.turn.interrupted` report.

Verified on the twin: `fabro steer --interrupt` during a long tool call
ends the turn, the text is the agent's next request, and the stream
carries the `$interrupt` record and the interrupted-turn report; an
interrupt of a gate stage is refused with `no_live_turn` and the gate's
question is untouched.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-18 22:38:17 -04:00
..
scripts fix(timing): simplify live timing projections 2026-07-28 14:20:59 -04:00
src Interrupt a live agent stage's model turn over Petri 2026-09-18 22:38:17 -04:00
tests fix(reasoning): align stream and client invariants 2026-07-24 17:42:44 -04:00
openapitools.json Rename Arc to Fabro in TypeScript/JavaScript 2026-03-12 11:13:18 -04:00
package.json Fold context-window data into agent.message, remove snapshot event (#390) 2026-05-24 15:48:21 -04:00
tsconfig.json Fix run principal attribution gaps 2026-05-02 09:14:02 -04:00