PreToolUse

PreToolUse is a hook for Claude Code from odere-pro/claude-wiki-pages-plugin. Its token cost is not measured, scanned A, original, MIT.

A set of checks that runs before reading or changing wiki files. Read checks warn about scope, while write checks validate permissions, metadata, links, attachments, raw-file protection, and required rules.

In plain words
What is it for?
Use it to guard Read, Grep, Glob, Write, Edit, and MultiEdit operations during wiki work.
Why use it?
It helps prevent unauthorized or malformed wiki changes and flags reads outside the active vault.

Hook for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: mentions CLAUDE.md.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the claude-wiki-pages plugin — 26 skills, 5 commands, 17 agents, 7 hooks shipped together

One of 7 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 6 are separate, each on its own page.

Good fit Use it to guard Read, Grep, Glob, Write, Edit, and MultiEdit operations during wiki work.

Compare 6 hooks from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add odere-pro/claude-wiki-pages-plugin
Claude Code
/plugin install claude-wiki-pages

Made for: Claude Code.

Or install claude-wiki-pages, the plugin that ships this one along with the rest of its 26 skills, 5 commands, 17 agents, 7 hooks.

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/odere-pro/claude-wiki-pages-plugin/pre-tool-use.svg)](https://agentmods.dev/hooks/odere-pro/claude-wiki-pages-plugin/pre-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/odere-pro/claude-wiki-pages-plugin/pre-tool-use"><img src="https://agentmods.dev/badge/hooks/odere-pro/claude-wiki-pages-plugin/pre-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 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 7d 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.

hooks/hooks.json · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "PreToolUse": [
    {
      "matcher": "Read|Grep|Glob",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/scope-guard.sh",
          "description": "Advisory read-scope warning (intentional, not an oversight): emits a stderr notice when a Read/Grep/Glob call targets a path outside the active vault. Non-blocking by deliberate architectural design — read operations carry no mutation risk to vault data, so least-privilege enforcement for reads is observability-only. Write/Edit/MultiEdit calls are fully fail-closed by the firewall.sh + protect-raw.sh + validate-frontmatter.sh chain (which does block). This advisory-only posture is the documented security boundary: reads warn; writes are gated."
        }
      ]
    },
    {
      "matcher": "Write|Edit|MultiEdit",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/firewall.sh"
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/validate-frontmatter.sh"
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/check-wikilinks.sh"
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/protect-raw.sh"
        },
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/validate-attachments.sh"
        }
      ]
    },
    {
      "matcher": "Write|Edit|MultiEdit",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/enforce-dmi.sh",
          "description": "Block SKILL.md edits that add side-effecting verbs without disable-model-invocation: true (path-filtered inside the script)"
        }
      ]
    },
    {
      "matcher": "Write|Edit|MultiEdit",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLU

Read the full file on GitHub · 59 lines

Same file

What else hooks.json configures

This page is one entry in a file that holds 7. 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. 7d ago First seen · 59 lines scan A e9c0e7c96ca7

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository odere-pro/claude-wiki-pages-plugin (1 stars, last pushed 2mo ago), 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 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.