Explain an unfamiliar function before editing it
Understand a small code snippet, its assumptions, and the questions to answer before changing it.
Start with these inputs
- A short code snippet without secrets
- Language, runtime, and relevant versions
- Expected behavior and sample inputs
Follow the workflow
- Choose a small relevant snippet and remove credentials and private data.
- Paste it into Claude with the runtime and expected behavior.
- Trace the explanation against the code yourself, checking assumptions and external dependencies.
- Confirm uncertain behavior with the project’s actual documentation or local tests before editing.
Your starting prompt
Explain the code below for a developer new to this module. Return: purpose; inputs and outputs; control flow; external dependencies; assumptions; edge cases; and questions that the snippet alone cannot answer. Walk through the supplied sample input. Distinguish a possible issue from a confirmed bug. Do not invent surrounding files, APIs, or test results. Do not execute code or rewrite it yet. Language/runtime/version: [details] Expected behavior: [description] Sample input: [sample] Code: [paste code]
What the output could look like
Illustrative example, not a recorded test result.
Illustrative example using invented sample inputs:
Purpose: convert a list of records into a lookup by ID.
Assumption: IDs are unique.
Possible edge case: later records overwrite earlier ones with the same ID.
Question: is overwrite behavior intended?
Review before you use it.
An explanation can be plausible and wrong. It is not a code review, security audit, or proof that the snippet works. Time is an approximate planning estimate, not a measured result. Free access has usage limits; features can vary by account.
An explanation can be plausible and wrong. It is not a code review, security audit, or proof that the snippet works. Time is an approximate planning estimate, not a measured result. Free access has usage limits; features can vary by account.
Sources & review notes
By AI Flow Finder · Reviewed October 14, 2026. Documented means this guide is based on the sources above. It has not yet passed a recorded end-to-end workflow test. Tool access and limits can change.