What is Plan Mode in Claude Code?

Plan Mode is a specialized state where the AI investigates the codebase in a read-only capacity to create a structured plan before making any actual modifications.

How does this skill help with code quality?

It enforces a rigorous quality checklist and requires an investigation phase, ensuring solutions address root causes using idiomatic patterns rather than temporary workarounds.

Can I review the plan before any code is changed?

Yes, the skill uses a formal approval flow via the ExitPlanMode tool, presenting a structured plan for developer confirmation before any implementation begins.

Does this skill support testing and verification?

Absolutely. Every generated plan includes specific automated test commands, manual verification steps, and post-deployment monitoring criteria to ensure success.

Implementation Planner

Name: Implementation Planner
Author: znorris

byznorris

0•

Productivity & Workflow

Generates structured, step-by-step implementation plans for complex software tasks using a dedicated read-only investigation mode.

The plan-work skill enables Claude to enter a specialized 'Plan Mode' to meticulously map out architectural changes and identify root causes before a single line of code is written. It enforces a read-only investigation phase to ensure deep understanding of the codebase and adherence to idiomatic patterns. By producing a comprehensive plan—including file modifications, solution designs, and multi-stage verification steps—this skill ensures long-term maintainability and reduces the risk of architectural regressions or shallow fixes.

Key Features

01Idiomatic solution design focused on maintainability and correctness

02Comprehensive verification strategies covering automated, manual, and post-deployment testing

03Deep Root Cause Analysis (RCA) with specific file and line references

040 GitHub stars

05Granular, actionable implementation steps with minimal code snippets

06Dedicated read-only investigation phase to prevent premature code changes

Use Cases

01Breaking down complex GitHub issues or Jira tickets into actionable code changes

02Architecting new features while ensuring they follow established codebase standards and safety protocols

03Designing major refactors that require cross-file consistency and adherence to existing patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add znorris/claude-marketplace plan-work

For use in Claude.ai and ChatGPT

Key Features

01Idiomatic solution design focused on maintainability and correctness

02Comprehensive verification strategies covering automated, manual, and post-deployment testing

03Deep Root Cause Analysis (RCA) with specific file and line references

040 GitHub stars

05Granular, actionable implementation steps with minimal code snippets

06Dedicated read-only investigation phase to prevent premature code changes

Use Cases

01Breaking down complex GitHub issues or Jira tickets into actionable code changes

02Architecting new features while ensuring they follow established codebase standards and safety protocols

03Designing major refactors that require cross-file consistency and adherence to existing patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add znorris/claude-marketplace plan-work

For use in Claude.ai and ChatGPT