agentmods.dev

clauder: Hook for Claude Code

.claude/settings.json

PreToolUse is a hook for Claude Code from spacehendrix/clauder. Its token cost is not measured, scanned A, original, Apache-2.0.

A project hook that runs checks before tools such as file editing, shell commands, or external service calls. It traces actions and checks ignore rules, protected files, and unsafe commands.

In plain words
What is it for?
Use it to add guardrails around coding-agent actions and require human approval for selected service operations.
Why use it?
It helps enforce project rules and prevent accidental changes to excluded, immutable, or dangerous targets.

Hook for Claude Code

Written for Claude Code: $CLAUDE_PROJECT_DIR variable.

This is spacehendrix/clauder's own configuration. It tells Claude Code how to work on clauder 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 clauder configures →

One of 9 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 8 are separate, each on its own page.

not rated 58repo changed 12d ago A scan tokens not measured original Apache-2.0
View source ↗ spacehendrix/clauder
Reuse

Borrowing it

Nothing to install: this file belongs to spacehendrix/clauder. 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/spacehendrix/clauder/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/spacehendrix/clauder

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 PreToolUse

README.md
[![agentmods](https://agentmods.dev/badge/hooks/spacehendrix/clauder/pre-tool-use/github.svg)](https://agentmods.dev/hooks/spacehendrix/clauder/pre-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/spacehendrix/clauder/pre-tool-use"><img src="https://agentmods.dev/badge/hooks/spacehendrix/clauder/pre-tool-use/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for PreToolUse

Your own site · 80×15
<a href="https://agentmods.dev/hooks/spacehendrix/clauder/pre-tool-use"><img src="https://agentmods.dev/badge/hooks/spacehendrix/clauder/pre-tool-use.svg" alt="Reviewed on agentmods" width="80" 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 0 findings. 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

PreToolUse scanned grade A with 0 findings 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 12d ago.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/settings.json · 76 lines

What it actually says

{
  "PreToolUse": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/trace-event.py"
        }
      ]
    },
    {
      "matcher": "Edit|MultiEdit|Write|mcp|Bash|Read|Grep",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/check-ignore-patterns.py"
        }
      ]
    },
    {
      "matcher": "Edit|MultiEdit|Write|mcp|Bash",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/check-immutable-patterns.py"
        }
      ]
    },
    {
      "matcher": "mcp__supabase",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/require-human-approval.py"
        }
      ]
    },
    {
      "matcher": "mcp__stripe",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/require-human-approval.py"
        }
      ]
    },
    {
      "matcher": "mcp__github",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/require-human-approval.py"
        }
      ]
    },
    {
      "matcher": "mcp__cloudflare",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/require-human-approval.py"
        }
      ]
    },
    {
      "matcher": "mcp__consult7",
      "hooks": [
        {
          "type": "command",
          "command": "python3 $CLAUDE_PROJECT_DIR/.claude/hooks/require-human-approval.py"
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 9. 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. 12d ago Changed · -9 lines ffa849e81bc2
  2. 1mo ago First seen · 85 lines scan A af292ba154f9

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository spacehendrix/clauder (58 stars, last pushed 12d ago), licensed Apache-2.0. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

DevOps and cloudSecurityagentic-codingagentic-engineeringagentic-workflowai-codingai-coding-agentai-coding-assistant
Related

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SessionStart

Runs when a session starts, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured

SessionEnd

Runs when a session ends, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured

UserPromptSubmit

Runs when you submit a prompt, before the agent sees it, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured

PostCompact

Runs after the context is compacted, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured

FileChanged

Runs on the FileChanged event, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured

PostToolUse

Runs after a tool call finishes, executing runtime.js. From compforge/devloop.

compforge/devloop · not measured