/apex-plan

ApexPlanning & Architecture

Scopes a project or feature before any code is written. Reads the codebase and brief, challenges assumptions, and presents S, M, and L depth options with time and estimated token cost for each. You choose how deep to go before Apex dispatches any work to the team.

Install

This skill

Install Apex Plan

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install this skill

$ claude plugin install apex-plan@tonone-ai

The agent

Install Apex

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install Apex

$ claude plugin install apex@tonone-ai

See all Apex skills

Want all 31 agents across both teams?

Full installation guide

Invoke this skill

Command|$ /apex-plan

When to use

When starting any non-trivial project, feature, or refactor and scope is unclear. Use before writing code when multiple implementation paths exist and you need tradeoffs made explicit. Particularly useful when a stakeholder has said 'build X' but the right way to build X is still an open question.

Deep dive

How to Scope Engineering Projects with AI Before Writing Code

Most AI coding tools jump straight to code. /apex-plan scopes the work first: reads the codebase, challenges assumptions, returns S, M, L options with time and token estimates.

Read the article

More from Apex

All Apex skills

ApexPlanning

/apex-review

Reviews a completed body of work across all layers: API design, data model, security, observability, tests, and documentation. Catches the integration gaps that happen when specialists work in their own lane: not errors any one specialist would make, but the things that only appear when you look at the whole.

After completing a significant feature, before a p…

ApexPlanning

/apex-status

Reads git history, open PRs, recent commits, and codebase state to produce a CTO-level status report. Shows what is done, what is in progress, what is blocked, and what the highest-risk items are at this point in the project.

At the start of a work session to orient before di…

ApexPlanning

/apex-takeover

Takes ownership of an inherited or unfamiliar codebase by orchestrating parallel reconnaissance across all 14 specialists simultaneously. Produces a full system map, risk assessment, quick wins list, and recommended roadmap. This is the starting point when joining a project mid-stream.

When inheriting a codebase from another team, when…

Ready to use Apex Plan?

Get Started Back to Marketplace