Can I update a plan once it has been created?

Yes, the skill includes an update workflow that allows you to load existing plans, revise content, and overwrite the file while preserving metadata.

How does the skill find existing plans?

It uses specialized scripts to scan the plans directory and parse YAML frontmatter, allowing you to search and list plans by name or description.

Where are the plan files stored?

Plans are stored in the $CODEX_HOME/plans directory, which defaults to ~/.codex/plans if the environment variable is not explicitly set.

Does this skill modify my repository's source code?

No, the skill is designed to only read the codebase for context. All write operations are restricted to the designated plans directory.

What is the difference between an implementation plan and an overview plan?

Implementation plans focus on ordered action items and testing for active coding tasks, while overview plans capture high-level architecture, diagrams, and system logic.

Codex Plan Manager

Name: Codex Plan Manager
Author: ishiooon

byishiooon

Productivity & Workflow

Manages implementation and overview plan documents to streamline technical workflows and project documentation.

About

The Codex Plan Manager skill provides a structured framework for Claude to create, manage, and track technical plans stored outside your repository's source code. It supports two primary formats: detailed implementation plans with checklists and risk assessments, and high-level architectural overviews with system diagrams. By utilizing standardized markdown templates and YAML frontmatter, this skill ensures that project roadmaps and technical decisions are easily discoverable, consistently formatted, and simple to update as requirements evolve.

Key Features

Dual-template support for both action-oriented implementation and high-level overviews
Standardized markdown formatting with YAML frontmatter for automated parsing
Full lifecycle management (CRUD) for plan documents in a dedicated directory
0 GitHub stars
Intelligent plan discovery using Python-based search and summary scripts
Strict repository safety by keeping all documentation in a separate storage path

Use Cases

Drafting step-by-step implementation checklists for complex new features
Documenting system architecture and data flows for long-term reference
Managing project scope and tracking completed action items during development

About

Key Features

Dual-template support for both action-oriented implementation and high-level overviews
Standardized markdown formatting with YAML frontmatter for automated parsing
Full lifecycle management (CRUD) for plan documents in a dedicated directory
0 GitHub stars
Intelligent plan discovery using Python-based search and summary scripts
Strict repository safety by keeping all documentation in a separate storage path

Use Cases

Drafting step-by-step implementation checklists for complex new features
Documenting system architecture and data flows for long-term reference
Managing project scope and tracking completed action items during development