Files
deepseek-harness/packages/code-runtime
Chinesezjc c4d6c25ffc test(code-runtime-python): pin the pump reader against a class-attribute rebind; correct the staging comment
The review's three remaining items:
- A regression test rebinds __main__.ProtocolChannel.read_frame_async and asserts
  a binding reply still round-trips (the pump's reader is a bound method
  captured by _run before the program runs).
- The settlement note (en + zh) records that send_done's frame-shape check uses
  _run's bound _str/_isinstance.
- The staging-removal comment no longer claims teardown retries tracked state:
  teardown deliberately does not sweep staging, so a removal failure is the one
  case the gone-by-settlement contract degrades on.
Pairing re-recorded.
2026-08-31 14:49:15 +08:00
..

description, kind
description kind
Package map for the code-execution capability family: what program execution does for you, and which package owns each part. package-group

code-runtime/ — code-execution capability family

English | 中文

Summary

The code-runtime/ group provides program execution: a model writes one program that calls host-provided functions as ordinary async calls, and a runtime executes it in isolation and returns only what the program printed and returned. One package defines the shared capability (ctx.codeRuntime), a second executes TypeScript programs in a fresh Node worker thread, and a third owns the wire protocol between a Node host and a CPython subprocess for the Python backend. Every run is independent — no state carries from one program to the next — and failures come back as part of the result, so the caller can see why a program failed and feed that back to the model.

Table of Contents


Packages

These three packages together provide program execution; each README describes what its part does.

Package Role ctx key
code-runtime/ Defines what a code runtime does: run one program against host-provided bindings and report what it printed and returned ctx.codeRuntime
code-runtime-worker-thread/ Executes TypeScript programs, each in a fresh Node worker thread registers ctx.codeRuntime
code-runtime-python/ Owns the fd-3 wire protocol between a Node host and a CPython subprocess, the Python backend's protocol layer

Start with the subsystem reference for the service contract, then the PTC mode design that consumes this capability and the capability-seam model it follows.

Dev Note

Working context for maintainers — click to expand

None.