[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.
```
This commit is contained in:
Andrei Eternal
2026-03-23 14:32:59 -07:00
committed by GitHub
parent 18f1a08bc9
commit 73bbb07ba8
38 changed files with 1877 additions and 55 deletions

View File

@@ -0,0 +1,101 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"definitions": {
"HookEventNameWire": {
"enum": [
"PreToolUse",
"SessionStart",
"UserPromptSubmit",
"Stop"
],
"type": "string"
},
"PreToolUseDecisionWire": {
"enum": [
"approve",
"block"
],
"type": "string"
},
"PreToolUseHookSpecificOutputWire": {
"additionalProperties": false,
"properties": {
"additionalContext": {
"default": null,
"type": "string"
},
"hookEventName": {
"$ref": "#/definitions/HookEventNameWire"
},
"permissionDecision": {
"allOf": [
{
"$ref": "#/definitions/PreToolUsePermissionDecisionWire"
}
],
"default": null
},
"permissionDecisionReason": {
"default": null,
"type": "string"
},
"updatedInput": {
"default": null
}
},
"required": [
"hookEventName"
],
"type": "object"
},
"PreToolUsePermissionDecisionWire": {
"enum": [
"allow",
"deny",
"ask"
],
"type": "string"
}
},
"properties": {
"continue": {
"default": true,
"type": "boolean"
},
"decision": {
"allOf": [
{
"$ref": "#/definitions/PreToolUseDecisionWire"
}
],
"default": null
},
"hookSpecificOutput": {
"allOf": [
{
"$ref": "#/definitions/PreToolUseHookSpecificOutputWire"
}
],
"default": null
},
"reason": {
"default": null,
"type": "string"
},
"stopReason": {
"default": null,
"type": "string"
},
"suppressOutput": {
"default": false,
"type": "boolean"
},
"systemMessage": {
"default": null,
"type": "string"
}
},
"title": "pre-tool-use.command.output",
"type": "object"
}