fix(codex): run Windows shell hooks non-interactively - #1202
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dnlrsls merged 5 commits intoSep 15, 2026
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Included review availability: Your plan provides up to 8 included reviews per hour; 5 remain after this review. 📝 WalkthroughWalkthroughThe Codex plugin now routes three Windows Bash hooks through a PowerShell dispatcher. The dispatcher validates scripts, finds Git Bash, forwards streams, preserves encoding, and returns hook exit codes. New tests cover configuration, runtime behavior, fail-open handling, and Unicode output. ChangesCodex Windows hook dispatch
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant Codex
participant PowerShell
participant run-bash-hook.ps1
participant GitBash
participant HookScript
Codex->>PowerShell: Execute commandWindows
PowerShell->>run-bash-hook.ps1: Pass approved hook path
run-bash-hook.ps1->>GitBash: Start bash.exe without profiles
GitBash->>HookScript: Forward stdin
HookScript-->>GitBash: Return output and exit code
GitBash-->>run-bash-hook.ps1: Provide process result
run-bash-hook.ps1-->>Codex: Forward streams and exit code
Suggested reviewers: Merge Risk: 🔵 Low · up to A timed-out Windows hook is not covered for residual Bash processes. This is a bounded test-coverage gap that should be tracked before relying on timeout behavior in production. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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dnlrsls
marked this pull request as ready for review
September 15, 2026 19:09
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Actionable comments posted: 3
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Inline comments:
In `@plugin/codex_windows_hook_dispatcher_test.go`:
- Around line 172-173: Update the test cleanup around
codexWindowsConsoleCodePage and codexSetWindowsConsoleCodePage to capture both
the original input and output console code pages, then restore each
independently during cleanup. Preserve the existing test behavior while ensuring
differing original code pages do not affect later tests.
- Around line 136-143: Add timeout and process-tree coverage to the Windows
dispatcher tests around runCodexWindowsManifestCommand and the blocking hook
fixture: exercise the manifest host-command timeout with a hook that does not
exit, then assert the direct bash.exe process and all descendants have exited,
accounting for the supported job-object or process-tree cleanup contract rather
than relying on powershell.exe termination alone.
In `@plugin/codex/scripts/run-bash-hook.ps1`:
- Line 24: Move git/bash discovery, child-process creation, stream forwarding,
and completion handling out of run-bash-hook.ps1 into a new Go-owned
hook-dispatch API or CLI boundary, following the thin-adapter rules. Add that
boundary because no existing hook-dispatch entry point is available, then reduce
the PowerShell adapter to forwarding its inputs, making one core call, and
forwarding the result.
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Review profile: ASSERTIVE
Plan: Advanced
Run ID: 2ea198a0-86b6-4eac-acff-4e337ca3a467
📒 Files selected for processing (5)
plugin/codex/.codex-plugin/plugin.jsonplugin/codex/hooks/hooks.jsonplugin/codex/scripts/run-bash-hook.ps1plugin/codex_windows_hook_dispatcher_test.goplugin/codex_windows_session_end_test.go
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🔗 Linked Issue
Closes #1136
🏷️ PR Type
type:bug— Bug fixtype:feature— New featuretype:question— Question requiring tracked worktype:docs— Documentation onlytype:refactor— Code refactoring (no behavior change)type:chore— Maintenance, dependencies, toolingtype:breaking-change— Breaking change📝 Summary
SessionStart, post-compaction, andUserPromptSubmitshell hooks.bash.exewithout invokinggit-bash.exeor Mintty.📂 Changes
plugin/codex/hooks/hooks.json.shhooks through a Windows-specific dispatcher.plugin/codex/scripts/run-bash-hook.ps1plugin/codex_windows_hook_dispatcher_test.goplugin/codex/.codex-plugin/plugin.json0.1.5.plugin/codex_windows_session_end_test.go🧪 Test Plan
go test ./...go test -tags e2e ./internal/server/...make lintFocused verification completed:
go test ./plugin -run '^TestCodexWindowsBashHookDispatcher' -count=1 -vgo test ./plugin -run '^TestCodexWindows(BashHookDispatcherRuntime|SubagentStopAdapter)$' -count=3 -vgo test ./plugin -run '^TestCodexWindows' -count=1run-bash-hook.ps1git diff --check0.1.5: startupSessionStart,UserPromptSubmit, and compactSessionStartcompleted with expected context and no Mintty or residual hook Bash process.Local broad-suite limitations:
go test ./...and the E2E command fail on this Windows host because of existing project-resolution/Git-Bash-path and unrelated plugin-test failures. Relevant failures were reproduced against an exported unmodifiedHEAD; no candidate-caused broad-suite failure was found.make lintwas unavailable becausemakeis not installed.plugin/pitests were not run because dependencies are not installed. CI is the authoritative clean-environment gate for this draft.🤖 Automated Checks
These run automatically and all must pass before merge:
Closes #N/Fixes #N/Resolves #Nstatus:approvedlabelgo test ./...passesgo test -tags e2e ./internal/server/...passesnpm testpasses inplugin/pi✅ Contributor Checklist
Closes #1136)type:*label to this PRgo test ./...go test -tags e2e ./internal/server/...make lintCo-Authored-Bytrailers in commits💬 Notes for Reviewers
size:exceptionwas explicitly approved for this 442-line cohesive work unit. The dispatcher, manifest mappings, and behavior-focused Windows regression coverage do not have an honest independently useful split below the 400-line budget.jqavailability and the separately reportedengram instance-idcompatibility concern remain out of scope.Summary by CodeRabbit
New Features
Bug Fixes
Chores