Requirements Engineering with Formal Verification
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I've been building an open source formal methods system (fizzbee.io) for the past few years.Today I'm launching a new app built on the same technology. It performs requirements engineering using formal verification to uncover gaps and produce precise instructions for your coding agents to follow.When given a prompt, it - asks high signal follow-up questions - converts to formal spec and identifies complex requirements gaps - generates validation scenarioAt the end, it produces a specification document that can be shared with coding agents. In my trials on various projects, it produces working code in fewer iterations.Please give it a try and share your feedback. https://fizzbee.ai/You can also look at a sample project. https://fizzbee.ai/projects/94bf2869-97a1-445c-8f5d-4445848b...
HN · launched Jul 8, 2026 · 27 upvotes (top 23%) · 0 views
Niche: automated software testing tools · 185 launches, 12 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 185 launches in automated software testing tools →
Could you build this?
No Building formal verification engines and mathematical state-space explorers requires specialized academic expertise in formal methods, logic solvers, and specification languages (like TLA+).
What it would actually take: This system relies on formal methods technology (such as the author's FizzBee model checker), which involves building state-space exploration algorithms, AST parsers for formal specs, model checkers, and invariance validators. Integrating an LLM involves mapping ambiguous natural language user requirements into mathematically provable state machines and constraint languages, requiring advanced research in formal verification, compiler design, and automata theory.
Discussion
5 comments analyzed.
Competitors mentioned: VS Code extensions, Cursor extension, MCP servers
Concerns raised: Web-based tool limits access to user's domain context and existing files, Formal spec format not suitable for AI agent iteration and execution
Feature requests: Export finalized specification to Markdown or Jira tickets, Local tool integration to access existing markdown files and code, Skills or MCP servers for AI agents to execute specs
Competitors
Other products that read as similar to this one : 175 launches clear the similarity bar, closest 8 shown.
Attention rank: #49 of 176 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 246 days after the earliest competitor.
- Apex · ph · 2026-11-02 · 1 upvotes · similarity 0.55
- OQP · hn · 2026-04-13 · 8 upvotes · similarity 0.47
- Formally Verified Leaderless Log Protocol for Kafka · hn · 2026-04-10 · 5 upvotes · similarity 0.46
- Requirements Traceability Gap Finder · ph · 2026-11-14 · 3 upvotes · similarity 0.45
- Vericore · ph · 2026-10-06 · 2 upvotes · similarity 0.43
- x86-formal-verification-research · github · 2026-10-30 · 16 upvotes · similarity 0.42
- FVjobs · github · 2026-10-26 · 87 upvotes · similarity 0.40
- Tiden · ph · 2026-10-14 · 155 upvotes · similarity 0.40
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