First cut at the `to_thread`/`to_process`-style "run it over there"
wrapper layer from issue #477: a single-remote-task invocation API
decoupled from the `ActorNursery` spawn machinery, composed purely
from the lower level daemon-actor + portal primitives,
- `to_actor.run(fn, **fn_kwargs)` spawns a subactor via
`ActorNursery.start_actor()`, schedules `fn` as its lone task
with `Portal.run()` and ALWAYS reaps it via a `finally`-scoped
`Portal.cancel_actor()` (whose bounded cancel-req wait is
internally shielded so the reap also runs under caller-scope
cancellation).
- remote errors raise directly in the caller's task as boxed
`RemoteActorError`s, moving error collection/propagation up into
whatever local `trio` scope encloses the call.
- "placement" opts: `portal=` reuses a running actor (no
spawn/reap), `an=` spawns from a caller-managed actor-nursery,
neither opens a private call-scoped `open_nursery()` (implicitly
booting the runtime, tunable via pass-through `runtime_kwargs`).
- fail-fast validation BEFORE any spawn: non-streaming async fn
only (same constraint as `Portal.run()`), `portal=`/`an=` mutual
exclusion and no `runtime_kwargs` alongside a placement opt.
Also,
- x-ref the successor API from `.run_in_actor()`'s deprecation TODO
+ docstring; emitting a formal `DeprecationWarning` waits on
migrating in-repo usage.
- log prompt-io provenance per NLNet policy incl. the driver prompt
file.
Prompt-IO: ai/prompt-io/claude/20260702T154255Z_65bf9df5_prompt_io.md
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi