learnprompt-single-mdx

# LearnPrompt single MDX tutorial Produce one publishable tutorial and its auditable evidence. Do not batch several chapters inside one invocation. ## Required reading Before editing, read: 1. `research/golden-samples/README.md` 2. `research/golden-samples/quality-rubric.md` 3. [references/article-contract.md](references/article-contract.md) 4. [references/research-and-review.md](references/research-and-review.md) 5. [references/visual-assets.md](references/visual-assets.md) 6. The closest existing golden sample and the target section's adjacent tutorials Use an Orange Book as a topic map when relevant. Verify current product behavior with primary sources and live tools. ## Workflow ### 1. Freeze the article card Record the topic, target reader, one-sentence outcome, destination MDX path, research path, non-goals, source families, showcase question, and build command. If a missing decision would materially change the article, ask at most three focused questions. In an unattended goal, make the smallest safe assumption and record it in `brief.md`. ### 2. Inspect before editing - Confirm the real repository root and run `git status --short`. - Preserve unrelated user changes. - Read the target file, content schema, sidebar configuration, its bottom source section, and at most three relevant neighboring tutorials. - State a 3-6 item plan before making changes. ### 3. Build the research pack Create `research/articles/<slug>/` unless the user supplies another path. Pr...