Why does this skill use Lines of Code (LOC) for estimation?

LOC provides a concrete, codebase-relative measure of complexity that is more consistent and actionable for AI agents than time-based estimates, which can vary significantly.

Can I use this skill for bug fixes?

Yes, it includes specific protocols for bug reproduction, root cause hypothesis formation, and creating fail-to-pass test cases to ensure the fix is verified.

What is a design-first TDD approach?

It is a methodology where documentation and test cases are defined and created before any implementation code is written to ensure clear design, testability, and architectural alignment.

What are milestone commits in this context?

Milestone commits are incremental progress markers for large features (800+ LOC) that allow developers to track test passage and state during development before the final merge.

Implementation Planner

Name: Implementation Planner
Author: Synthesys-Lab

bySynthesys-Lab

•

Productivity & Workflow

Generates structured, test-driven implementation plans for features and bug fixes using a documentation-first methodology.

The Implementation Planner skill provides a systematic framework for AI agents to create detailed blueprints for software development tasks. It enforces a strict 'Documentation-first, Tests-second, Implementation-last' workflow, ensuring design clarity and requirement validation before any code is written. By quantifying complexity in lines of code (LOC) and requiring real-time codebase audits, it transforms vague requirements into actionable, file-level instructions that minimize technical debt and improve development velocity.

Key Features

01Quantified complexity estimation using Lines of Code (LOC)

02Design-first TDD workflow (Docs -> Tests -> Implementation)

03Step-by-step actionable blueprints for GitHub issues

0437 GitHub stars

05File-level change auditing and interface-driven design

06Integrated bug reproduction and hypothesis mapping

Use Cases

01Structured bug fixes requiring reproduction and regression testing

02Planning complex new feature additions with multi-file dependencies

03Large-scale codebase refactoring with milestone-based progress tracking

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add synthesys-lab/agentize plan-guideline

For use in Claude.ai and ChatGPT

Download Skill