Claude Code System Prompts (Piebald)
Prompt LibraryVersion-by-version teardown of Claude Code's system prompts and 27 built-in tool descriptions, updated with every release.
- system-prompt
- claude-code
- analysis
- prompt-engineering
Useful AI Prompts
488+ standardized AI prompts plus 260+ Claude Code skills and 7 automation hooks.
A quality-gated prompt library: 488+ prompts across 47 categories, each on one standardized template (metadata, role, context, input handling, task, output spec, quality criteria) and passing 11 validation checks. Also ships 260+ auto-triggering Claude Code skills, 7 pre-commit automation hooks, and a machine-readable PROMPT-INDEX.json.
What it does
- 488+ prompts in 47 categories, all on one validated template with XML-tagged sections
- 11 documented quality gates — metadata complete, measurable criteria, copy-paste ready, and more
- 260+ Claude Code skills that auto-trigger by keyword, indexed in SKILLS-MATRIX.md
- Searchable web interface at aj-geddes.github.io/useful-ai-prompts plus a machine-readable PROMPT-INDEX.json
When to use it
Use it when you need expert-role prompts with predictable structure, or when building out a Claude Code setup and wanting skill and hook patterns to borrow.
Getting started
Browse the prompts directory or the web interface and copy a prompt's ## Prompt section into your assistant; skills live under skills/ and hooks under hooks/ — the README's Quick Start covers both.
Things to know
Repository activity has slowed (last push March 2026); the 488/260/7 counts are the README's own badge claims, not independently audited.
Repository
aj-geddes/useful-ai-promptsCharted
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