AI Agent Rule & SKILL.md BuilderPRO
FmtDev AI Agent Rule & SKILL.md Builder is a local-first developer tool that helps you write, optimize, and bundle custom instructions and rules for AI coding assistants.
Rule Metadata
Framework Pins
Critical Safety Boundaries
Styling & Structural Preferences
Live Compiled Preview
SKILL.md
--- name: "workspace-standards" description: "Enforces strict project structuring and stack-specific optimization guidelines." dependencies: - "next" - "typescript" - "tailwindcss" --- # Skill: workspace-standards ## Description Enforces strict project structuring and stack-specific optimization guidelines. ## Critical Boundaries - **CRITICAL**: Never commit raw API keys, passwords, database URLs, or secret tokens. - **CRITICAL**: Do not perform network fetch requests during build or rendering cycles without caching. - **CRITICAL**: Ensure all dynamic inputs are thoroughly sanitized to prevent cross-site scripting (XSS). ## Stack & Environment Pins - framework.nextjs: 15 - styling.tailwind: v4 - typescript.strict: true ## Distilled Preferences - style: arrow functions and functional components - layout: Tailwind flex or grid instead of custom absolute offsets
Instructions
- 1
Select your target AI agent format: Claude Code (SKILL.md), Cursor (.cursorrules), or Windsurf (.mdc).
- 2
Fill in your agent configuration, system instructions, routing parameters, and safety constraints.
- 3
Enable Token Distillation to optimize and compress instructions without losing semantic meaning.
- 4
Copy or download the generated configuration file and place it in the root directory of your project.
Frequently Asked Questions
All configuration, token compression, and compiler runs are executed entirely client-side in your browser sandbox. None of your instructions, APIs, or codebase structure details are ever sent to a server.
Yes. The output structure is dynamically optimized to place static system rules and developer configurations at the top, allowing coding agents like Claude Code to cache context blocks, resulting in faster and cheaper API transactions.
Token Distillation is a custom compression pipeline that removes verbose language, redundant formatting, and fluff words from your custom rules while preserving strict safety boundaries. This reduces your rule payload size by up to 30%, saving context window space and lowering costs.