What is 'vertical slicing' in this context?

Vertical slicing means organizing work into phases where each phase represents a complete, testable piece of functionality, ensuring the codebase stays buildable and the build passes after every checkpoint.

How do I approve a plan generated by this skill?

Once the AI presents the completed plan and appendix, you can approve it by running the /plan-mode:plan+approve command to begin implementation.

How does plan+ differ from the built-in EnterPlanMode?

Unlike the standard mode, plan+ enforces a specific structure known as vertical slicing, maintains a separate appendix for findings, and ensures the AI remains in a read-only state during the exploration phase.

Why is the appendix file necessary?

The appendix stores specific file paths, line references, API signatures, and codebase patterns. This allows a fresh AI session to implement the plan immediately without needing to re-explore the entire project.

Can this skill modify my source code?

No, the skill is strictly read-only for project files during the planning stage. It only allows editing plan/appendix files or writing temporary proof-of-concept code to the /tmp directory.

Advanced Implementation Planner

Name: Advanced Implementation Planner
Author: NiltonVolpato

byNiltonVolpato

0•

生産性とワークフロー

Generates structured, reviewable implementation plans with vertical slicing and read-only codebase exploration.

The plan+ skill provides a robust alternative to Claude's default plan mode, enforcing a disciplined workflow for complex software changes. It guides the AI to perform thorough, read-only codebase exploration, maintain a detailed appendix of findings, and organize work into 'vertical' testable phases rather than horizontal layers. By preventing premature code modifications and requiring self-contained documentation with line-specific references, it ensures that implementation plans are reviewable by humans and executable in fresh sessions without redundant re-exploration.

主な機能

01Review-ready plan format with clear verification steps

02Vertical phase slicing for buildable and testable checkpoints

03Read-only exploration mode to prevent accidental codebase changes

040 GitHub stars

05Automatic appendix generation for patterns and API references

06Isolated proof-of-concept validation using /tmp environments

ユースケース

01Architecting complex features that require multi-stage, test-driven implementation

02Documenting codebase exploration and patterns before committing to large-scale refactors

03Creating reviewable implementation blueprints for team collaboration or session hand-offs

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add niltonvolpato/claude-plugins plan+

For use in Claude.ai and ChatGPT