FuncSpec
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From requirement to code, nothing gets lost.

FuncSpec connects your business requirements, technical designs, and LLM-driven implementation in one living chain — with a permalink to every decision.

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Every spec has a URL

Link specs from PRs, Jira tickets, code comments, or your LLM context. The spec is the source of truth — not the ticket.

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Multi-stakeholder, one system

Business requirements become technical specs. Technical specs become implementation context. Nothing is re-typed or lost.

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Built for AI toolchains

The FuncSpec CLI and AI skill inject specs into Claude, Cursor, or Copilot. GitHub links code analysis to specs. Jira tickets fire automatically on acceptance.

How It Works

1

Business writes requirements

PMs describe what to build in functional specs. Every item gets a permanent URL your team can link from anywhere.

2

Architects design

Technical specs are derived from functional specs, preserving the chain. AI fills gaps and flags missing coverage.

3

AI reviews

Quality scores, coverage maps, and side-by-side refinements across both layers. GitHub integration links PRs and code analysis directly to specs.

4

Programmers and LLMs implement

Use the FuncSpec CLI or AI skill to pull specs into your coding session. Your technical spec is the prompt context — full visibility, no copy-paste.

5

The loop closes

Acceptance triggers a Jira ticket automatically. Status changes propagate. When a PR merges, the spec knows.

Export anywhere

PDF, DOCX, Markdown, HTML, JSON, CSV

Permalink every decision

Every spec item has a permanent URL. Link from PRs, tickets, code, or anywhere your team works.

API-first

Full REST API with 75+ endpoints, perfect for automation

The spec layer for LLM-driven engineering teams.

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Currently invite-only early access. Join the waitlist to be notified.