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Execute Feature Implementation Specification

Executes a Feature Implementation Specification by coordinating sub-agents and validating tasks.

3|2|Updated Mar 13, 2026
Search Tags:#automation#planning#verification#subagents#spec#execute#fis
One-click install
npx skills add https://github.com/IT-HUSET/andthen --skill execute-feature-implementation-specification
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Execute Feature Implementation Specification
Source: https://github.com/IT-HUSET/andthen/tree/main/plugin/skills/exec-spec
Command: npx skills add https://github.com/IT-HUSET/andthen --skill execute-feature-implementation-specification

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Converts a defined FIS into a working implementation by executing or implementing the spec with disciplined verification, ensuring traceability to the FIS tasks and outcomes.

Core Features & Use Cases

  • Execute a fully specified FIS end-to-end, driving implementation with Step-based gates and per-task verification.
  • Coordinate advisory sub-agents and skills for documentation, architecture, and testing while maintaining FIS as the single source of truth.
  • Update the FIS with progress, observations, and discovered requirements as you complete tasks.

Quick Start

Provide the path to a FIS file and let the executor run the entire spec from start to finish.

Frequently Asked Questions about Execute Feature Implementation Specification

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I execute a feature implementation specification end-to-end?▼

To execute a feature implementation specification end-to-end, provide the path to your spec file and the executor will run the entire specification from start to finish, driving implementation with step-based gates and per-task verification.

What is a Feature Implementation Specification (FIS) used for?▼

A Feature Implementation Specification (FIS) serves as the authoritative contract and single source of truth for implementation, ensuring disciplined verification and traceability from defined tasks to working software outcomes.

How do I automate test scaffolding when implementing a specification?▼

You can automate test scaffolding during implementation by having the executor read specification provenance and automatically scaffold required tests when needed to enforce governance gates.

Can I coordinate advisory sub-agents while executing a specification?▼

Yes, you can coordinate advisory sub-agents and skills for documentation, architecture, and testing during execution while maintaining the specification as the single source of truth.

What is the best way to maintain traceability when implementing a spec?▼

The best way to maintain traceability is to use the specification as an authoritative contract, updating it directly with progress, observations, and discovered requirements as you complete tasks.

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