find-usage

Find Class/Function/Method Usage

Find all production code locations where the specified class, function, or method is defined and used.

Steps

1. Definition — show where it is defined (file, line, containing class/module)

2. Usage sites — show where it is used in production code

   For classes, complete ALL of: 2a. Instantiation sites — search for constructor calls 2b. Method invocation sites — read the class to find its public methods, then search for call sites of EACH method

   For functions/methods: 2a. Call sites — search for all calls to the function/method

Output format

Exclude test code. Use a separate table per category:

Definition

Location	Class/Function
file.py:line	ClassName

Instantiation sites

Location	Class/Function	Context
file.py:line	ClassName()	containing_function()

Method invocation sites

Location	Class/Function	Method
file.py:line	ClassName	method_name()

For top-level functions, put the function name in Class/Function and note "(top-level)" in Context.

Step 3: Notable usage patterns

After presenting the tables, read the surrounding context of each call site and identify cross-cutting patterns worth calling out. Examples:

• Duplicated dispatch logic — the same if/else or switch appears at every call site, suggesting the conditional could be pushed into the called class.
• Single entry-point construction — the class is only instantiated in one place and passed everywhere else via injection.
• Unconditional vs conditional calls — most sites use a conditional but one or two call a method unconditionally, hinting at a different semantic role.
• Unused methods — a public method with zero production call sites.

Present findings as a short numbered list with file references.