Files
codex/codex-rs/app-server-protocol/schema/json/v2/HookStartedNotification.json
Andrei Eternal 73bbb07ba8 [hooks] add non-streaming (non-stdin style) shell-only PreToolUse support (#15211)
- add `PreToolUse` hook for bash-like tool execution only at first
- block shell execution before dispatch with deny-only hook behavior
- introduces common.rs matcher framework for matching when hooks are run

example run:

```
› run three parallel echo commands, and the second one should echo "[block-pre-tool-use]" as a test


• Running the three echo commands in parallel now and I’ll report the output directly.

• Running PreToolUse hook: name for demo pre tool use hook

• Running PreToolUse hook: name for demo pre tool use hook

• Running PreToolUse hook: name for demo pre tool use hook

PreToolUse hook (completed)
  warning: wizard-tower PreToolUse demo inspected Bash: echo "first parallel echo"
  
PreToolUse hook (blocked)
  warning: wizard-tower PreToolUse demo blocked a Bash command on purpose.
  feedback: PreToolUse demo blocked the command. Remove [block-pre-tool-use] to continue.

PreToolUse hook (completed)
  warning: wizard-tower PreToolUse demo inspected Bash: echo "third parallel echo"

• Ran echo "first parallel echo"
  └ first parallel echo

• Ran echo "third parallel echo"
  └ third parallel echo

• Three little waves went out in parallel.

  1. printed first parallel echo
  2. was blocked before execution because it contained the exact test string [block-pre-tool-use]
  3. printed third parallel echo

  There was also an unrelated macOS defaults warning around the successful commands, but the echoes
  themselves worked fine. If you want, I can rerun the second one with a slightly modified string so
  it passes cleanly.
```
2026-03-23 14:32:59 -07:00

163 lines
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JSON

{
"$schema": "http://json-schema.org/draft-07/schema#",
"definitions": {
"HookEventName": {
"enum": [
"preToolUse",
"sessionStart",
"userPromptSubmit",
"stop"
],
"type": "string"
},
"HookExecutionMode": {
"enum": [
"sync",
"async"
],
"type": "string"
},
"HookHandlerType": {
"enum": [
"command",
"prompt",
"agent"
],
"type": "string"
},
"HookOutputEntry": {
"properties": {
"kind": {
"$ref": "#/definitions/HookOutputEntryKind"
},
"text": {
"type": "string"
}
},
"required": [
"kind",
"text"
],
"type": "object"
},
"HookOutputEntryKind": {
"enum": [
"warning",
"stop",
"feedback",
"context",
"error"
],
"type": "string"
},
"HookRunStatus": {
"enum": [
"running",
"completed",
"failed",
"blocked",
"stopped"
],
"type": "string"
},
"HookRunSummary": {
"properties": {
"completedAt": {
"format": "int64",
"type": [
"integer",
"null"
]
},
"displayOrder": {
"format": "int64",
"type": "integer"
},
"durationMs": {
"format": "int64",
"type": [
"integer",
"null"
]
},
"entries": {
"items": {
"$ref": "#/definitions/HookOutputEntry"
},
"type": "array"
},
"eventName": {
"$ref": "#/definitions/HookEventName"
},
"executionMode": {
"$ref": "#/definitions/HookExecutionMode"
},
"handlerType": {
"$ref": "#/definitions/HookHandlerType"
},
"id": {
"type": "string"
},
"scope": {
"$ref": "#/definitions/HookScope"
},
"sourcePath": {
"type": "string"
},
"startedAt": {
"format": "int64",
"type": "integer"
},
"status": {
"$ref": "#/definitions/HookRunStatus"
},
"statusMessage": {
"type": [
"string",
"null"
]
}
},
"required": [
"displayOrder",
"entries",
"eventName",
"executionMode",
"handlerType",
"id",
"scope",
"sourcePath",
"startedAt",
"status"
],
"type": "object"
},
"HookScope": {
"enum": [
"thread",
"turn"
],
"type": "string"
}
},
"properties": {
"run": {
"$ref": "#/definitions/HookRunSummary"
},
"threadId": {
"type": "string"
},
"turnId": {
"type": [
"string",
"null"
]
}
},
"required": [
"run",
"threadId"
],
"title": "HookStartedNotification",
"type": "object"
}