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strale: Hook for Claude Code

.claude/settings.json

PostToolUse is a hook for Claude Code from strale-io/strale. Its token cost is not measured, scanned A, original, MIT.

A post-tool hook that runs a Node.js integrity check after Bash commands finish.

In plain words
What is it for?
Use it to guard the repository structure after Bash tool calls.
Why use it?
It helps detect unwanted changes to the project tree immediately after shell operations.

Hook for Claude Code

Written for Claude Code: PostToolUse hook event.

This is strale-io/strale's own configuration. It tells Claude Code how to work on strale itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything strale configures →

One of 4 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 3 are separate, each on its own page.

not rated 5repo +1 changed today A scan tokens not measured original MIT
View source ↗ strale-io/strale strale.dev
Reuse

Borrowing it

Nothing to install: this file belongs to strale-io/strale. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/strale-io/strale/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/strale-io/strale

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for PostToolUse

README.md
[![agentmods](https://agentmods.dev/badge/hooks/strale-io/strale/post-tool-use.svg)](https://agentmods.dev/hooks/strale-io/strale/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/strale-io/strale/post-tool-use"><img src="https://agentmods.dev/badge/hooks/strale-io/strale/post-tool-use.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

PostToolUse scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

"command": "node -e \"const c=require('node:child_process');const r=c.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const p=c.spawnSync(process.execPath,[require('node:path').join(r,'script
.claude/settings.json · 13 lines

What it actually says

{
  "PostToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "command",
          "command": "node -e \"const c=require('node:child_process');const r=c.execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const p=c.spawnSync(process.execPath,[require('node:path').join(r,'scripts/guard-tree-integrity.mjs')],{cwd:r,stdio:'inherit'});if(p.error)console.error(p.error.message);process.exit(p.status??1)\""
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 4. Installing the file brings all of them; each is measured and scanned on its own page.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed 25cbeaa4324a
  2. 3d ago First seen · 13 lines scan A b57aa61ea610

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository strale-io/strale (5 stars, last pushed today), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

ai-agentsapieu-ai-actmcpqualitytrust
Related

Other hooks, from other repositories

PostToolUse

Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.

supabase/supabase · not measured

SessionStart

Runs when a session starts on startup, executing install_pkgs.sh. From supabase/supabase.

supabase/supabase · not measured

SessionStart

Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.

google-gemini/gemini-cli · not measured

PreToolUse

Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.

apache/superset · not measured

PreToolUse

Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.

anthropics/claude-cookbooks · not measured

PreCompact

Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.

ruvnet/RuView · not measured