Writing & editingDeveloper documentationtext
Write a contribution guide for someone's first change
Explains setup, small change scope and review expectations with a test path.

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Prompt
From the actual [REPOSITORY STRUCTURE], [BUILD STEPS] and [REVIEW RULES], write a first-contribution guide. Walk a newcomer through prerequisites, safe setup, choosing a small issue, running tests, opening a review and responding to feedback. Show exact commands only if supplied and verified; mark platform-specific uncertainty. Include a glossary and a troubleshooting path for the first likely failure. Do not imply a contribution will be accepted. Check that a fresh contributor can reach a passing local test without needing undocumented credentials.