BOB: Hook for Claude Code

.claude/settings.json

PreToolUse is a hook for Claude Code from shyamsridhar123/BOB. Its token cost is not measured, scanned A, original, no licence file.

A pre-tool hook that runs a shell check before the agent uses Glob or Grep. Glob finds files by pattern, while Grep searches file contents.

In plain words
What is it for?
It helps enforce or inspect conditions before Glob and Grep calls.
Why use it?
It allows checks to happen before file discovery or text searches, helping catch conditions before those operations run.

Hook for Claude Code

Written for Claude Code: installed under .claude/.

This is shyamsridhar123/BOB's own configuration. It tells Claude Code how to work on BOB 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 BOB configures →

One of 2 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 1 are separate, each on its own page.

Reuse

Borrowing it

Nothing to install: this file belongs to shyamsridhar123/BOB. 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/shyamsridhar123/BOB/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/shyamsridhar123/BOB

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/shyamsridhar123/bob/pre-tool-use.svg)](https://agentmods.dev/hooks/shyamsridhar123/bob/pre-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/shyamsridhar123/bob/pre-tool-use"><img src="https://agentmods.dev/badge/hooks/shyamsridhar123/bob/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 unknown 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 8d 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.

.claude/settings.json · 13 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Same file

What else settings.json configures

This page is one entry in a file that holds 2. 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. 8d ago First seen · 13 lines scan A 36d5e63fb61e

Subscribe to this mod's changes

PreToolUse is a hook published in the GitHub repository shyamsridhar123/BOB (2 stars, last pushed 4mo ago), with no licence file. 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.