jackwener/maka-agent

refactor(runtime): extract computer-use wire codec and contract types from computer-use-tools.ts

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#1,405 opened on Jul 23, 2026

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Description

Part of #1084 (second-pass sink-file and boundary governance). Scope re-verified against current main (computer-use-tools.ts, 1836 lines).

Scope

  • Extract the wire-protocol codec into computer-use-codec.ts, mirroring the existing openai-computer-codec.ts pattern: the computerParams zod discriminated union (~L230+), snapshotComputerParams (~L469), adaptToCuAction (~L496), and summarize (~L590) if its call surface allows.
  • Move the contract types into computer-use-types.ts so adapters stop importing the implementation file: CuRunResult, CuDispatchBackend, CuDispatchOutcome, CuDispatchEvidence, CuScreenshot, CuObservation, CuSemanticAction, CuRunContext, and the overlay hooks.
  • buildComputerUseTools stays in computer-use-tools.ts.

Invariants

Same as #1084: behavior-neutral; keep @maka/runtime public exports stable via re-exports; no reverse imports from new leaf files; flat PR off main.

Verification

Typecheck/build + existing computer-use tests.

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