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FSD Generator

From idea to functional spec in minutes

What is FSD Generator?

FSD Generator takes rough requirements — a paragraph, a bullet list, a product brief, or an uploaded document — and transforms them into a structured Functional Specification Document. The output includes user stories, acceptance criteria, and architecture suggestions that a development team can act on immediately.

It eliminates the hours typically spent translating business intent into technical documentation, and ensures your specs follow a consistent format every time. FSD Generator is especially valuable early in a project when requirements are still evolving and the team needs a shared reference point to align around.

How to Use FSD Generator

Getting Started

  1. Click FSD Generator in the sidebar.
  2. Paste or type your requirements in the input area. You can also upload a document (PDF or DOCX) as the source.
  3. Click Generate and wait a few seconds for the full FSD to be produced.
  4. Review the output, add comments or corrections, and regenerate individual sections as needed.

FSD Generator is accessible from the sidebar under Agents. The main interface has an input area for your requirements and a generated output panel. Use the section controls in the output panel to regenerate or refine individual parts of the spec without rerunning the entire document.

Key Features

Document Generation

  • Natural-language to structured FSD — Describe what you want to build in plain language and receive a fully structured specification with sections for overview, scope, functional requirements, and constraints.
  • Auto-generated user stories — The agent extracts and formats user stories with roles, goals, and motivations from your requirements, following standard "As a [role], I want [goal] so that [benefit]" formatting.
  • Architecture diagram suggestions — For system-level requirements, the agent recommends high-level architecture patterns and component relationships.

Collaboration and Export

  • Version tracking — Each generated FSD is versioned so you can track how requirements evolved over time, making it easy to see what changed between iterations.
  • Export support — Download the generated spec as a document to share with your team or include in a project repository. Exported documents retain all section structure and formatting.

Example Use Cases

Common Scenarios

  • Convert a product brief into a dev-ready spec without spending days in documentation meetings.
  • Generate acceptance criteria for features that were described informally in stakeholder conversations.

Advanced Scenarios

  • Maintain living specs by updating requirements and regenerating only the affected sections as the project evolves.
  • Standardize FSD formats across teams so every project follows the same structure, making cross-team reviews faster and more consistent.

Tips for Best Results

Getting Better Output

  • More detail in your requirements means better output. If you can describe edge cases, user roles, or constraints, the agent will include them in the spec rather than leaving blanks.
  • Review and iterate. Treat the first output as a strong first draft. Ask the agent to expand a section, add more acceptance criteria, or adjust the level of technical detail.
  • Upload existing documents when you have a rough spec or a client brief — the agent can restructure and fill in gaps rather than starting from scratch.

Common Mistakes to Avoid

  • Avoid submitting only a single vague sentence as input; the more context you provide about user roles, constraints, and goals, the more complete the output.
  • Don't regenerate the entire FSD when you only need to change one section — use the section-level regeneration controls to avoid overwriting parts you've already refined.