feat: support preTool and postTool hooks to codex

[zchee]

Codex 0.118.0 has supported the PreToolUse and PostToolUse hooks.

• https://github.com/openai/codex/tree/rust-v0.118.0/codex-rs/hooks/schema/generated

These hooks are not required for "Entire" (such as the Gemini hook), however, they have been implemented as stubs for future additional hooks to the Codex.

[claude]

Claude Code Review

This pull request is from a fork — automated review is disabled. A repository maintainer can comment @claude review to run a one-time review.

[Copilot]

Pull request overview

Adds Codex hook surface area for the newly-supported PreToolUse / PostToolUse events (Codex CLI 0.118.0+), wiring them into the Codex agent’s hook installation and lifecycle parsing as no-op/pass-through hooks for future expansion.

Changes:

• Add PostToolUse to Codex hook config types and supported hook names.
• Treat PreToolUse and PostToolUse as pass-through lifecycle hooks (no lifecycle event emitted).
• Install/uninstall/manage PreToolUse and PostToolUse hook entries in .codex/hooks.json, and update related tests.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
cmd/entire/cli/agent/codex/types.go	Extends Codex hooks.json schema types to include PostToolUse.
cmd/entire/cli/agent/codex/lifecycle.go	Registers post-tool-use hook name and treats pre/post tool hooks as pass-through.
cmd/entire/cli/agent/codex/lifecycle_test.go	Updates lifecycle tests to cover both pass-through hooks.
cmd/entire/cli/agent/codex/hooks.go	Updates hook install/uninstall + detection to include Pre/Post tool hooks.
cmd/entire/cli/agent/codex/hooks_test.go	Updates install-count expectations for newly installed hooks.

Comments suppressed due to low confidence (1)

cmd/entire/cli/agent/codex/hooks_test.go:37

• These tests now expect 5 hooks to be installed, but they still only assert that session-start/user-prompt-submit/stop commands appear in hooks.json. Add assertions for the new PreToolUse/PostToolUse hook commands as well so the test will catch mismatched verb names or missing hook entries.

	ag := &CodexAgent{}
	count, err := ag.InstallHooks(context.Background(), false, false)
	require.NoError(t, err)
	require.Equal(t, 5, count) // SessionStart, UserPromptSubmit, Stop, PreToolUse, PostToolUse

	// Verify hooks.json was created in the repo
	hooksPath := filepath.Join(tempDir, ".codex", HooksFileName)
	data, err := os.ReadFile(hooksPath)
	require.NoError(t, err)
	require.Contains(t, string(data), "entire hooks codex session-start")
	require.Contains(t, string(data), "entire hooks codex user-prompt-submit")
	require.Contains(t, string(data), "entire hooks codex stop")

[gtrrz-victor]

That's where the real PR meat starts. Happy for you to take over and add an implementation that I can review later on.

[zchee]

Okay, let's kick off.