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Show HN: I Made a Claude Skill for Spec-Driven Development (SDD)
An open-source, Claude-native SDD management skill, developed to replicate and improve upon existing SDD tools (like Kiro) for developers using Claude.
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An open-source, Claude-native SDD management skill, developed to replicate and improve upon existing SDD tools (like Kiro) for developers using Claude.
This open-source Claude Skill for SDD addresses the developer pain point of inconsistent AI coding agent performance and the desire for structured development methodologies within AI-assisted workflows. By building an SDD skill directly within Claude, it leverages the agent's capabilities to manage requirements, testing, and code generation. The explicit mention of replicating "kiro's SDD management" indicates a competitive response to existing tools, aiming to democratize advanced AI development practices. The comprehensive testing phases (static assertions, behavioral tests, quality checks) demonstrate a focus on reliability, crucial for enterprise adoption. Market implications include fostering a more disciplined approach to AI-driven software development, potentially increasing trust and efficiency in agent-generated code, and expanding the utility of platforms like Claude for complex engineering tasks.
At my work they provided a single Claude subscription for everyone on the team. To be honest I like kiro better as it provides a way better SDD management. But the company can't provide it and I can't afford it yet. Turns out I had the skill creator skill in my claude instance so I made use of it to create this Skill. I made it fully by using Claude but I wanted to make it open source, so I asked it to help me make tests and preparations for it, even a CI to run python tests.Well, we got this results with it:- Phase 2A: 67 static assertions (Python script, runs in CI)- Phase 2B: 15 behavioral tests (live Claude Code session)- Phase 2C: 53 generation quality checks across 3 end-to-end flowsAll of these passed and the CI also passed (after a few tries).I made it to suit my way of prompting and coding and based it off kiro's SDD management, but I want it to be publicly available and used by many people. According to claude some of the testers need to fit the following criteria:1. Developer starting a real new project from scratch2. Solo dev with an active side project (greenfield or partial codebase)3. Team lead whose team uses multiple AI tools4. Developer with an existing codebase and no written specs5. Developer who actively uses 3+ AI coding toolsIt's actually a blind test, no guiding, just try it if you can, I'd really appreciate your help.The repo is here: https://github.com/FredAntB/Spec-Driven-Development
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Deep-Dive FAQs
What is I Made a Claude Skill for Spec-Driven Development (SDD)?
I Made a Claude Skill for Spec-Driven Development (SDD) is analyzed by our AI as: An open-source, Claude-native SDD management skill, developed to replicate and improve upon existing SDD tools (like Kiro) for developers using Claude.. It focuses on This open-source Claude Skill for SDD addresses the developer pain point of inconsistent AI coding agent performance and the desire for structured ...
Where did I Made a Claude Skill for Spec-Driven Development (SDD) originate?
Data for I Made a Claude Skill for Spec-Driven Development (SDD) was aggregated directly from the Hacker News community ecosystem, representing raw developer and early-adopter sentiment.
When was I Made a Claude Skill for Spec-Driven Development (SDD) publicly launched?
The initial public indexing or launch date for I Made a Claude Skill for Spec-Driven Development (SDD) within our tracked developer communities was recorded on May 22, 2026.
How popular is I Made a Claude Skill for Spec-Driven Development (SDD)?
I Made a Claude Skill for Spec-Driven Development (SDD) has achieved measurable traction, logging over 23 traction score and facilitating 3 recorded discussions or engagements.
Which technical categories define I Made a Claude Skill for Spec-Driven Development (SDD)?
Based on metadata extraction, I Made a Claude Skill for Spec-Driven Development (SDD) is categorized under topics such as: Claude Skill, Spec-Driven Development (SDD), kiro's SDD management, static assertions.
What are some commercial alternatives to I Made a Claude Skill for Spec-Driven Development (SDD)?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as Bluedot 2.1, which offers overlapping value propositions.
How does the creator describe I Made a Claude Skill for Spec-Driven Development (SDD)?
The original author or development team describes the product as follows: "At my work they provided a single Claude subscription for everyone on the team. To be honest I like kiro better as it provides a way better SDD management. But the company can't provide it and I ca..."
Community Voice & Feedback
I cloned your Spec-Driven-Development repo to my GitHub repo, use codex to generate a scraper checkpoint manager spec, then use codex prompt to implement the checkpoint logic. The new implementation has significant improvement on top of my original shape of checkpoint logic. It's strict implementation based on generated spec.
Have signed up for your testing pool. I think I fall under the non-technical vibe coder #2.
[flagged]
Look at the juxt/allium plugin. It’s a more mature version of what you’re attempting.Also big requirements/tasks files will rot your context opening up hallucinations and drift. So I’d guess your starting point isn’t useful for larger codebases.
[dead]
Sure, I'll take a stab at it, that looks interesting. I'll give you an update in a couple of hours.
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