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Useful AI Prompts

Updated Jul 7, 2026

Useful AI Prompts by aj-geddes is a production-ready library of 488 standardized prompts across 47 categories, 260+ Claude Code auto-triggering skills, and 7 automation hooks. Every prompt passes 11 quality gates (metadata complete, role-specific, measurable criteria, copy-paste-ready) and ships with a realistic usage example.

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What it does

Browse prompts at https://aj-geddes.github.io/useful-ai-prompts/
Search and filter 488 standardized prompts by category using the web interface, then copy the prompt block with XML tags into any AI.
Competitive analysis prompt (prompts/business/)
Uses a 12-year competitive strategist role with a 4-step task structure: map landscape, profile competitors, identify gaps, create action plan with timelines.
security-scan hook (hooks/security-scan/)
Pre-commit hook that scans for vulnerabilities and secrets before each commit.
Claude Code skills in skills/ directory
260+ skills that auto-trigger when Claude Code detects relevant keywords across software dev, DevOps, security, API, and database domains.

Files (1)

OVERVIEW.mdprimary · markdown · 2.1 KB

## What it does

Useful AI Prompts is a production-ready library of 488 standardized prompts, 260+ Claude Code skills, and 7 automation hooks by aj-geddes. Each prompt follows a validated XML-tag structure: <role> (specific expert identity), <context> (situation framing), <input_handling> (required vs optional), <task> (3–7 numbered steps), <output_specification> (format and length), <quality_criteria> (measurable standards), and <constraints> (hard limits). Every prompt passes 11 quality gates before inclusion, including metadata complete, role-specific (not "I'll help you"), inputs categorized, outputs specified, and copy-paste-ready.

Prompt categories span Business & Strategy (business analysis, finance, marketing, operations, project management), Technology & Engineering (software engineering, DevOps, security, data science), Emerging Technologies (quantum computing, blockchain, biotechnology, space economy, renewable energy, healthcare digital), and Creative & Communication (design, presentations, technical writing, learning & development). The 260+ Claude Code skills auto-trigger when Claude Code detects relevant keywords — covering software development, DevOps, testing, security, API design, and database work. The 7 hooks (security-scan, pre-commit-linting, test-runner, dependency-check, auto-format, session-setup, and a post-save formatter) handle automated checks on commit and session start.

## Install

Browse prompts at https://aj-geddes.github.io/useful-ai-prompts/ with full-text search, or directly from the prompts/ directory on GitHub. Copy the ## Prompt section (including XML tags) into Claude, ChatGPT, or any capable model. For Claude Code skills, clone the repo and reference the skills/ directory.

## When to use

Use this when you need a structured, validated prompt for a professional task and don't want to write one from scratch. The 11-gate quality standard means prompts produce consistent output format rather than vague generalities. Particularly strong for business analysis, competitive intelligence, data science, and software engineering workflows.