PR 010 CR-1: Clarify process transport contract by LogicDuke · Pull Request #22 · LogicDuke/agentbridge

LogicDuke · 2026-08-16T16:36:10Z

Purpose

Stacked validation PR for CR-1 on protected parent PR #10.

This PR is intentionally narrow and quarantined. It targets the protected PR #10 feature branch, not main.

Finding

CR-1 was independently reverified on current parent HEAD as CURRENT P3: the process-transport contract/documentation overstated behavior by claiming unconditional non-rejection / synchronous non-throwing behavior, while mandatory post-spawn child-dispatch hardening can deliberately reject and hostile runtime state can synchronously throw before Promise construction.

Repair

Documentation/comment-only clarification in exactly two files:

docs/architecture/010-commander-claude-bridge.md
src/adapters/process-transport.ts

No executable runtime code changed. No tests changed. No imports, types, signatures, transport outcomes, termination implementation, or authority boundaries changed.

The revised contract:

describes defined operational results without claiming global totality;
documents the deliberate hardening-failure rejection without claiming it is the only possible rejection route;
removes the universal synchronous-no-throw claim;
describes bounded, platform-qualified termination procedure without claiming successful process/tree termination;
preserves the SPAWN_FAILED / AgentExchange distinction.

Exact quarantine identity

Parent HEAD: 62ea4a187b09877b23ccc93d7915d47a8cd787da

Repair commit: ff76c8149cd1d43dd910aa30a8f928675f112220

Validated patch SHA-256 (git diff --binary):

16CBFDE2D45E1D2BFE0A8A89F3AEB64D0111ECA32BC62CB91939D1F6CADAA6A7

The committed patch was mechanically verified byte-for-byte identical to the independently validated uncommitted candidate.

Validation already completed before commit

Fresh independent validator, separate from the repair agent:

independently reverified CR-1 on CURRENT parent HEAD;
reproduced the hostile-runtime synchronous throw without changing runtime behavior;
verified executable code is unchanged;
verified tests are unchanged;
verified the final candidate byte-for-byte before and after validation;
verified the repair remained uncommitted during validation.

Gates passed:

focused hardening/SPAWN_FAILED tests;
complete tests/adapters/process-transport.test.ts: 135 passed, 8 skipped;
full npm test: 1170 passed, 8 skipped;
npm run typecheck;
npm run lint;
npm run build;
git diff --check.

Architecture / authority

Frozen architecture unchanged:

AgentBridge Core → Autoflow Engine → Policy Engine → GitHub Adapter → Claude Adapter → OpenAI/Codex Adapter → Review Ingestion → Evidence Store.

Autoflow remains AgentBridge's orchestration engine.

AgentBridge V1 remains read-only against managed repositories. The process transport remains dormant/unwired. No repository-write authority, prompt/transcript interpretation, provider-specific authorization policy, or Commander/Autoflow redesign is introduced.

Quarantine rule

Do not merge this stacked PR into the protected parent merely because the implementing or validating agent reports success.

Required before merge upward:

exact PR base/head/SHA verification;
CI/checks on this exact repair HEAD;
independent GitHub review evidence;
review findings classified against current repair HEAD;
policy/evidence gate PASS;
human merge using a merge commit only.

After merge upward, PR #10 must be re-audited at its new HEAD.

Summary by CodeRabbit

Bug Fixes
- Improved handling when required process safeguards cannot be established.
- Added bounded termination and cleanup before reporting these failures.
- Clearly distinguishes safeguard failures from process-start and exchange outcomes.
- Preserves unexpected programming and security-related errors for proper visibility.
- Maintains consistent reporting for defined operational failures.
Documentation
- Updated technical documentation to reflect the revised process error-handling behavior.

coderabbitai · 2026-08-16T16:36:20Z

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📥 Commits

Reviewing files that changed from the base of the PR and between ff76c81 and 5ae7435.

📒 Files selected for processing (2)

docs/architecture/010-commander-claude-bridge.md
src/adapters/process-transport.ts

🚧 Files skipped from review as they are similar to previous changes (2)

docs/architecture/010-commander-claude-bridge.md
src/adapters/process-transport.ts

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📝 Walkthrough

Walkthrough

The process transport now rejects when mandatory post-spawn child-dispatch hardening fails. It performs bounded termination and cleanup first. This rejection remains distinct from SPAWN_FAILED and other AgentExchange outcomes.

Changes

Transport hardening failure handling

Layer / File(s)	Summary
Post-spawn hardening rejection contract `src/adapters/process-transport.ts`, `docs/architecture/010-commander-claude-bridge.md`	`invokeAgentProcess` rejects after cleanup when mandatory child-dispatch hardening fails. Defined operational failures remain selectively wrapped, while programmer and security-boundary defects propagate. The architecture documentation records this behavior.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 5ae74

This PR clarifies the process-transport contract without changing executable behavior, tests, or authority boundaries; no actionable merge-blocking risk remains after normal checks and review.

Possibly related PRs

LogicDuke/agentbridge#12: The process-transport hardening behavior builds on the earlier implementation.

Poem

I’m a rabbit guarding the process gate,
Hardening fails, so I clean up straight.
No false SPAWN_FAILED in the flow,
Defined errors wrap; boundary faults show.
Thump, thump—the contract’s clear!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: clarifying the process transport contract.

✨ Finishing Touches

📝 Generate docstrings

Create stacked PR
Commit on current branch

🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch repair/pr010-cr1-contract-clarification

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LogicDuke · 2026-08-16T16:37:29Z

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LogicDuke · 2026-08-16T16:37:55Z

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LogicDuke · 2026-08-16T16:47:01Z

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…n-qualification PR 022 P3: Qualify process transport exchange outcomes

LogicDuke · 2026-08-16T19:47:56Z

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Codex Review: Didn't find any major issues. Can't wait for the next one!

Reviewed commit: 5ae7435328

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chatgpt-codex-connector · 2026-08-16T21:52:01Z

+ * runs its bounded, platform-qualified termination procedure, tears down its
+ * pipes and listeners, and then rejects. That rejection is not `SPAWN_FAILED`


Describe the partial hardening cleanup accurately

When post-spawn hardening fails, the implementation destroys only child.stdout and child.stderr; it neither destroys nor ends child.stdin, and it deliberately re-arms an error listener after removing the others. Thus the new claim that the transport “tears down its pipes and listeners” overstates the cleanup, particularly when the bounded termination attempt does not stop the child. Qualify this as output-pipe/ordinary-listener cleanup or perform the stated full teardown.

Useful? React with 👍 / 👎.

…claim PR 022 P3: Clarify hardening cleanup contract

LogicDuke · 2026-08-16T23:50:09Z

@codex review

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Reviewed commit: 2fb0ab7713

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docs(pr010): clarify process transport contract

ff76c81

chatgpt-codex-connector Bot reviewed Aug 16, 2026

View reviewed changes

Comment thread docs/architecture/010-commander-claude-bridge.md Outdated

docs(pr022): qualify process transport exchange outcomes

7378f8e

LogicDuke mentioned this pull request Aug 16, 2026

PR 022 P3: Qualify process transport exchange outcomes #23

Merged

Merge pull request #23 from LogicDuke/repair/pr022-codex-p3-resolutio…

5ae7435

…n-qualification PR 022 P3: Qualify process transport exchange outcomes

LogicDuke marked this pull request as ready for review August 16, 2026 21:44

chatgpt-codex-connector Bot reviewed Aug 16, 2026

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LogicDuke marked this pull request as draft August 16, 2026 22:18

docs(pr022): clarify hardening cleanup contract

87fc6b8

LogicDuke mentioned this pull request Aug 16, 2026

PR 022 P3: Clarify hardening cleanup contract #24

Merged

Merge pull request #24 from LogicDuke/repair/pr022-hardening-cleanup-…

2fb0ab7

…claim PR 022 P3: Clarify hardening cleanup contract

LogicDuke mentioned this pull request Aug 17, 2026

PR 010 F1: Settle post-hardening failures safely #25

Draft

		* runs its bounded, platform-qualified termination procedure, tears down its
		* pipes and listeners, and then rejects. That rejection is not `SPAWN_FAILED`

Conversation

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Purpose

Finding

Repair

Exact quarantine identity

Validation already completed before commit

Architecture / authority

Quarantine rule

Summary by CodeRabbit

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Walkthrough

Changes

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