Borrowing it
Nothing to install: this file belongs to aj-geddes/useful-ai-prompts. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/aj-geddes/useful-ai-prompts/main/CLAUDE.mdgit clone --depth 1 https://github.com/aj-geddes/useful-ai-promptsWrote 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.
[](https://agentmods.dev/instructions/aj-geddes/useful-ai-prompts/claude-md)<a href="https://agentmods.dev/instructions/aj-geddes/useful-ai-prompts/claude-md"><img src="https://agentmods.dev/badge/instructions/aj-geddes/useful-ai-prompts/claude-md/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.
<a href="https://agentmods.dev/instructions/aj-geddes/useful-ai-prompts/claude-md"><img src="https://agentmods.dev/badge/instructions/aj-geddes/useful-ai-prompts/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01341 | $0.01341 |
| Opus 5 | $0.00671 | $0.00671 |
| Sonnet 5 | $0.00268 | $0.00268 |
| Haiku 4.5 | $0.00134 | $0.00134 |
Grade A, and why
useful-ai-prompts CLAUDE.md 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 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
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.
How it starts
The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Repository Overview
This is the Useful AI Prompts repository - a comprehensive library of specialized prompts designed for AI assistants to adopt expert personas when completing tasks. The repository contains 259+ prompts organized across 14 categories, combining multiple expert perspectives with professional frameworks.
Key Commands
Development Commands
# Install dependencies
npm install
# Code formatting
npx prettier --write .
# Validation scripts
python validate_jekyll_conversion.py
python update_prompt_index.py
Jekyll Website (docs/ directory)
cd docs/
bundle install # Install Ruby dependencies
bundle exec jekyll build # Build the site
bundle exec jekyll serve # Serve locally (http://localhost:4000)
Prompt Management
# Convert old format prompts to new conversational format
python batch_convert_prompts.py
# Fix conversion errors
python fix_conversion_errors.py
# Update the prompt index
python update_prompt_index.py
Architecture Overview
Directory Structure
/prompts/- Main prompt library organized by domain (technical, business, creative, specialized)/docs/- Jekyll website for browsing prompts (GitHub Pages deployment)/metadata/- Framework definitions and guidelines/_prompts/(in docs) - Jekyll collection of converted prompts for website- Python scripts - Conversion, validation, and maintenance utilities
Prompt Architecture
Each prompt follows a conversational, user-friendly format:
- Clear metadata (category, tags, use cases)
- Helpful description explaining the prompt's purpose
- Interactive questions to understand user's context
- Structured deliverables based on user's needs
- Practical examples showing usage
Data Flow
- Source prompts in
/prompts/directories - Conversion scripts transform to Jekyll format in
/docs/_prompts/ - Jekyll builds website from
/docs/directory - PROMPT-INDEX.json provides machine-readable catalog
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.
- 11d ago First seen · 168 lines · 1,341 tokens per session scan A 74e284c091a9
useful-ai-prompts CLAUDE.md is an instructions file published in the GitHub repository aj-geddes/useful-ai-prompts (336 stars, last pushed 6mo ago), licensed MIT. It adds 1,341 tokens to every session, about $0.0067 per session on Opus 5. 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 2026-08-30.
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