What is the primary output of the spec skill?

The primary output is a standalone SPEC.md file that serves as a canonical source of truth, combining product goals with detailed technical implementation patterns.

Does it support 1-way-door decision making?

Yes, it explicitly classifies decisions by reversibility, requiring more evidence and confirmation for high-stakes choices like public API schemas or security boundaries.

How does this skill handle technical uncertainty?

It proactively investigates evidence gaps by tracing code, checking dependencies, and analyzing current system behavior before asking for human judgment.

Where does the skill save the generated specifications?

Specs are saved by default in a date-prefixed directory within a 'specs/' folder at the repository root, ensuring chronological organization.

Product & Engineering Spec Driver

Name: Product & Engineering Spec Driver
Author: inkeep

byinkeep

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생산성 및 워크플로

Drives an evidence-based, iterative process to generate integrated product requirements and technical specifications.

The spec skill transforms Claude into a proactive co-driver for the scoping phase of software development. It moves beyond simple note-taking to enforce rigor through evidence-driven investigation, autonomous codebase mapping, and 3rd-party dependency research. By integrating product discovery with technical architecture, it produces a comprehensive SPEC.md artifact that includes user journeys, API designs, data models, and a live decision log. This skill is ideal for defining complex feature sets, navigating high-stakes architectural choices, and maintaining a durable source of truth for engineering teams.

주요 기능

01Integrated PRD and Technical Spec generation (SPEC.md)

02Evidence-driven validation of assumptions using code traces and research

03Categorized Decision Logs and Open Questions management

041 GitHub stars

051-way-door decision analysis and risk assessment

06Vertical-slice mapping from UX surfaces to runtime observability

사용 사례

01Scoping a new product feature or major system refactor end-to-end.

02Negotiating project scope by defining MVP requirements vs. future work tiers.

03Drafting RFCs or design docs that require deep technical evidence and prior art.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add inkeep/team-skills spec

For use in Claude.ai and ChatGPT

Download Skill