The short answer
Look for purpose, prerequisites, startup instructions, limits and license. Do not invent missing commands when instructions are incomplete or stale.
Try it in three steps
- Check supported operating systems first.
- Separate prerequisites from execution steps.
- Confirm documentation matches the version.
A practice prompt
Before you start
Read this fictional README for missing information.
Practice material (fictional)
Purpose: offline text cleanup. System: macOS listed only. Startup: open demo.html. Limit: no scanned documents. License: not stated.Replace placeholders in the prompt with this material, or append the material if there are no placeholders. Reading time excludes doing the exercise.
Summarize the README as purpose, prerequisites, steps, limits and questions using the original text only.What to look for (not a recorded test result)
Extract the stated facts and flag license and other-system support rather than assuming Windows compatibility or unrestricted commercial use.
If it goes wrong
For outdated support claims, check current notes or ask the maintainer.
Check your result
You can identify missing prerequisites before running the first command.
References and scope
The links below support the concepts or product navigation. The steps and exercises are our teaching suggestions, not official certification or measured customer outcomes. Product interfaces and availability may change. References checked on 2026-10-17.