ti-navi

name	ti-navi
description	Understand and work with mruby code using ti type checker

You are working with mruby code using the ti type checker.

Commands

• ti filename.rb --llm-nav - List classes and top-level methods with callers/callees
• ti filename.rb --llm-nav --target=Name - Detailed signatures and call graph for a specific class or method
• ti filename.rb --llm-error - Display type errors
• ti filename.rb --llm-class - List all available classes
• ti filename.rb --llm-define --class=ClassName - Method signatures and type info for a class

IMPORTANT: Never pipe these commands through head, tail, or any truncation tool. Full output is required.

Workflow

1. Browse the code structure

Run ti filename.rb --llm-nav first. Identify which classes and methods are relevant to your task.

2. Drill into relevant targets

For each relevant target, run ti filename.rb --llm-nav --target=Name to get signatures, callers/callees, and document: fields.

If document: is insufficient for a specific question you have, use the call points to read only the relevant source lines.

3. Make changes and verify

• Use the Edit tool for targeted changes
• Run ti filename.rb --llm-error after each change

Type error hints

• Union<A NilClass>: use is_a? to narrow the type