---
model: openai/gpt-5.6-sol
service: opencode
session: ses_3e4c90d3eafeqHEtRYSIHgHhpA
timestamp: 2026-08-18T19:30:05Z
git_ref: bf06b4f8
scope: code
substantive: true
raw_file: 20260818T193005Z_bf06b4f8_prompt_io.raw.md
---

## Prompt

Replace abandoned `Portal.run()` one-shots with a static linked-context
endpoint. Follow Trio positional-call semantics, use partials for target
keywords, preserve Python 3.14 Placeholder behavior, keep target lookup
behind the RPC allowlist and support private, nursery and portal
placement.

## Response summary

Use `Portal.open_context()` and `Context.wait_for_result()` for one-shot
tasks. Normalize every partial layer, validate signatures locally and
send target namespace/function components separately to the authorized
remote resolver. Retain the client-side function in its `NamespacePath`
so `to_tuple()` does not re-import it. Owned actors enable the declaring
`_api.__name__` directly; caller-owned portals opt in through the public
`to_actor.MODULE` alias.

## Files changed

- `tractor/to_actor/_api.py` - implement linked one-shot calls.
- `tractor/to_actor/__init__.py` - export `MODULE`.
- `tractor/msg/ptr.py` - retain refs created by `from_ref()`.
- `tests/test_to_actor.py` - cover the public API and authorization.
- `examples/parallelism/to_actor_one_shots.py` - use positional inputs.

## Human edits

The human rejected nested target-kwargs configuration and selected
Trio-style positional inputs plus `functools.partial()`. During staged
review the human required a Python 3.14 compatibility comment rather
than removing Placeholder support, requested separate namespace and
function inputs, preserved `_get_rpc_func(ns: str, funcname: str)`
authorization, renamed `RPC_MODULE` to `MODULE`, rejected global module
exposure and deferred speculative nursery/module-list helpers to the
`open_taskman()` design line. The human also required this public API
to land only after its lower-level safety dependencies. In final staged
review, the human required `_invoke_from_portal()` to use
`NamespacePath.to_tuple()` with the already-held function ref and
required internal actor setup to use `_api.__name__` directly, keeping
`to_actor.MODULE` solely as the public importer-facing alias.