Developers were among the first to live in AI tools — code generation, reviews, refactors, debugging. But most of us keep re-typing the same guidance into every chat. A small, well-organized prompt library fixes that.

What belongs in a developer’s prompt library

A few categories cover most day-to-day use:

Coding rules — style, naming, error-handling, and architectural conventions you want the model to follow.
Review checklists — “review this PR for bugs, edge cases, security, and missing tests.”
Refactor and migration prompts — repeatable instructions for common transformations.
Explainers — “explain this code”, “write docstrings”, “summarize this diff.”

Save each once, reuse forever.

Keep them structured with Markdown

Coding prompts are long and benefit from structure: headings, bullet rules, and fenced code blocks for examples. AINoter’s Markdown editor renders a live preview with syntax highlighting (pick your theme), math, and Mermaid diagrams — so a detailed “coding rules” prompt stays readable instead of becoming a wall of text. You can export it to PDF to share with a team.

Copy into any tool, instantly

Assign a keyboard shortcut to your “PR review” or “coding rules” prompt and paste it into your AI tool without leaving the editor. Or open the Quick Access Window, type a few letters, and copy. The library is only useful if reuse is frictionless.

Organize by project and concern

Use folders per project or stack, and tags like code, review, tests, infra so the same prompt shows up wherever it is relevant. Search and find-in-prompt help when a prompt grows.

Local-first, by default

Coding prompts often encode internal conventions and context. AINoter keeps everything on your Mac — no account, no cloud, no tracking — so your team’s guidance stays private.

Start small: save your top five coding prompts today. AINoter is free on the Mac App Store.