[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
Unverified
parent 18f1a08bc9
commit 73bbb07ba8
38 changed files with 1877 additions and 55 deletions
+13
View File
@@ -3,6 +3,8 @@ use tokio::process::Command;
use crate::engine::ClaudeHooksEngine;
use crate::engine::CommandShell;
use crate::events::pre_tool_use::PreToolUseOutcome;
use crate::events::pre_tool_use::PreToolUseRequest;
use crate::events::session_start::SessionStartOutcome;
use crate::events::session_start::SessionStartRequest;
use crate::events::stop::StopOutcome;
@@ -92,6 +94,13 @@ impl Hooks {
self.engine.preview_session_start(request)
}
pub fn preview_pre_tool_use(
&self,
request: &PreToolUseRequest,
) -> Vec<codex_protocol::protocol::HookRunSummary> {
self.engine.preview_pre_tool_use(request)
}
pub async fn run_session_start(
&self,
request: SessionStartRequest,
@@ -100,6 +109,10 @@ impl Hooks {
self.engine.run_session_start(request, turn_id).await
}
pub async fn run_pre_tool_use(&self, request: PreToolUseRequest) -> PreToolUseOutcome {
self.engine.run_pre_tool_use(request).await
}
pub fn preview_user_prompt_submit(
&self,
request: &UserPromptSubmitRequest,