About AGENTS.md Builder

The problem

Most AGENTS.md files are either copied from a template without editing or written from scratch in a rush. The result is usually vague, missing critical commands, or overloaded with rules that agents ignore. That wastes tokens, introduces errors, and slows down every coding session.

What this tool does

AGENTS.md Builder is a single-purpose static utility. You pick a preset, fill structured fields, see a live preview, fix lint warnings, and export a clean file. No backend, no AI calls, no repository scanning, and no data leaves your browser.

Design principles

• Static-first: the entire app is a static export with zero runtime server dependencies.
• Privacy-first: all data stays in your browser. We never collect, transmit, or store your drafts.
• Deterministic output: the same input always produces the same AGENTS.md.
• Presets over blank pages: sensible defaults for five common stacks so you edit instead of write.
• Lint-guided: inline warnings catch missing commands, vague rules, and stack mismatches before export.

Who is this for

Solo developers and small teams who use AI coding agents like Codex, Copilot, Cursor, or Claude Code and want to give those agents precise, actionable context without hand-writing a full AGENTS.md every time.

Technology

Built with Next.js App Router, TypeScript, and plain CSS. Deployed as a fully static site on Cloudflare Pages. No databases, no API routes, no cookies, no analytics SDK, no paid services.