Format responses in plain Markdown using simple headings, bullets, and fenced code blocks.
Prefer purpose-built filesystem and text tools over shell, batch independent calls, and use safe edit locators.
Use attached and local context first, separate observed facts from inferred conclusions, and cite source paths.
Generate one Mermaid diagram plus concise commentary.
Implementation plan and snippets for the specified React stack.
Scaffold idiomatic table-driven tests for a given function.
Turn goals, market or user research, constraints, and stakeholder input into a PRD, MRD, or product requirements artifact with testable requirements and acceptance criteria. Source-grounded; flags assumptions and missing inputs explicitly.
Read-only audit of docs or README files for structural gaps, stale claims, duplication, missing content, and navigation issues. Produces an audit and rewrite plan; does not rewrite docs.