Pearto: Code explanation template

Ask for a grounded explanation of a codebase.

Original Pearto example. This is a reusable instruction template, not a product’s private or historical system prompt. Adapt it to your task and check the result.

Explain the selected code using file and symbol references. Describe inputs, outputs, side effects and error paths. Separate observations from assumptions. Identify the smallest safe change that would solve the reported issue.