[Leeeon233]

Related issue

Closes #2023
Companion adapter PR: LodyAI/acp-extension-pi#28

Problem / pressure

Builtin Pi configurations with piPath or piExtensions lost their Fork and Side Chat entry points even when the runtime advertised fork support. The consumers checked source-specific capability entries with undefined runtime overrides.

Summary

• Resolve the bound Provider configuration when checking Tab, Side Chat and worktree fork availability.
• Reuse the existing selector authority for edit-and-resend.
• Extend the mounted Machine Flock test to verify fork availability as configuration and capability rows change.

Visual explanation

Session Provider ID + machine
  → bound Provider runtime overrides
  → matching runtime capability cache
  → Fork / Side Chat / worktree availability

Before / after

Before	After
Pi overrides cause a valid fork capability to be hidden	Matching Provider overrides preserve the fork entry points
Edit-and-resend repeats the same incorrect check	It uses the already-resolved capability authority

Test plan

• Full pnpm check: typechecks and lint passed, but the test stage stopped at the unchanged CLI test native Git credential adapter > clones recursive native SSH submodules while cloud credentials fail with context_unreadable from the session Git wrapper. CLI totals before stopping: 5,119 passed, 1 failed, 4 skipped.

• The complete src/lib/github-git-transport.test.ts suite passed when rerun without the ambient session Git wrapper and Git/SSH environment. No Git-transport source was changed; the full root check was not rerun.

• Components suite: 630 files, 6,431 tests passed.

• Components typecheck and scoped lint: passed (existing lint warnings).

• pnpm format and pnpm run docs check: passed.

• Desktop manual UI verification was not performed.

This host fix is independent of the companion adapter PR. It restores existing native fork access; message-boundary support requires the adapter change to be published and consumed through the managed-runtime release path. This PR does not update the Pi submodule or runtime artifact pin.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-28T23:20:36.632438Z	eea5fb7	Draft marked ready

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