Comparison Guide
Delvyn Studio vs GitHub Spec Kit
Both believe specs should drive code, not the other way around. Spec Kit does it inside the coding agent for developers. Delvyn does it upstream for product teams — where strategy, discovery, and OKRs decide what to build.
When is Spec Kit enough?
Spec Kit's specify → plan → tasks → implement loop is a real spec-driven workflow for engineers. Here's when it's all you need.
Spec Kit is enough when…
- You're a developer or on an engineering-led team
- Feature intent starts with whoever runs the CLI
- Specs are primarily technical (APIs, refactors, services)
- No formal product strategy or OKR practice exists
- Nobody outside engineering needs to read or approve specs
- You want a free, open-source, agent-agnostic workflow
You need Delvyn when…
- Product managers are accountable for what gets built
- OKRs and discovery decide priorities, not the CLI session
- Specs must carry vision, guardrails, and success criteria
- Multiple stakeholders need alignment before code starts
- You run several coding agents and want one source of intent
- You want a learning loop that makes future specs better
The core difference
Spec Kit formalizes intent inside the coding agent — a developer describes a feature and Spec Kit structures it into a plan, tasks, and code. Delvyn formalizes intent before the IDE — product vision, strategy, discovery, and OKRs become a specification any coding agent executes. Spec Kit makes one developer's intent rigorous. Delvyn makes the whole team's intent rigorous.
How they work together
Delvyn writes the product spec with full strategic context. Spec Kit decomposes and implements it. Nothing is lost between strategy and code.
1. Think
Define vision, validate through discovery, set OKR success criteria in Delvyn
2. Specify
Generate an agent spec with full strategic context from Delvyn
3. Push
Spec lands in GitHub with acceptance criteria attached
4. Spec Kit Executes
specify → plan → tasks → implement turns the spec into working code
Formalize intent where it starts — with the product team
Start free and generate your first product specification. Hand your coding agents — Spec Kit included — the strategic context they can't reconstruct on their own.