Add AfterToolUse hook (#11335)
Not wired up to config yet. (So we can change the name if we want)
An example payload:
```
{
"session_id": "019c48b7-7098-7b61-bc48-32e82585d451",
"cwd": "/Users/gt/code/codex/codex-rs",
"triggered_at": "2026-02-10T18:02:31Z",
"hook_event": {
"event_type": "after_tool_use",
"turn_id": "4",
"call_id": "call_iuo4DqWgjE7OxQywnL2UzJUE",
"tool_name": "apply_patch",
"tool_kind": "custom",
"tool_input": {
"input_type": "custom",
"input": "*** Begin Patch\n*** Update File: README.md\n@@\n-# Codex CLI hello (Rust Implementation)\n+# Codex CLI (Rust Implementation)\n*** End Patch\n"
},
"executed": true,
"success": true,
"duration_ms": 37,
"mutating": true,
"sandbox": "none",
"sandbox_policy": "danger-full-access",
"output_preview": "{\"output\":\"Success. Updated the following files:\\nM README.md\\n\",\"metadata\":{\"exit_code\":0,\"duration_seconds\":0.0}}"
}
}
```
7112e16809