Write technical documentation

Write or edit substantial developer documentation for the intended reader and task.

Input: $ARGUMENTS

Scope

Treat requests to review, critique, or answer a question as read-only. Edit files only when the operator asks for a change.

Leave product UI copy to the product's copy rules. Leave ordinary commit messages and pull request descriptions to /prp-commit and /prp-pr unless the operator explicitly invokes this skill for an editorial pass.

1. Establish the source of truth

Read the repository guidance, requested draft, relevant source, and existing documentation before writing. Identify the reader, the action or understanding they need, and the authoritative sources for the document's claims.

Use the repository's real symbols, paths, flags, commands, and product terms. Do not invent behavior, results, measurements, or terminology to make the prose sound complete.

2. Choose the document mode

Before drafting, read references/document-modes.md. Choose the dominant mode for the unit the operator asked to write: the whole document, or one focused section within a mixed document. Split and link when a competing mode becomes substantial; do not split a useful example or small reference table merely for structural purity.

3. Write for the first read

Before writing or editing, read references/sentence-style.md. Use direct, concrete language and a natural rhythm. Preserve precise domain terms, but remove filler, invented metaphors, vague claims, and formulaic AI phrasing.

Organize the document around the reader's task or question. Keep background only when it changes what the reader understands or does.

4. Prove the document

Check every named symbol, path, flag, link, count, command, and expected result against the real source. Run examples and commands when doing so is safe and relevant. Otherwise state what remains unverified instead of presenting it as fact.

Confirm that procedures follow the actual user path and that reference material matches the authoritative implementation or schema.

5. Edit once more

Remove words that do no work. Resolve ambiguous pronouns, modifiers, and overloaded names. Split any sentence that makes the reader backtrack.

Ask, "What makes this sound generated?" Rewrite the remaining tells without making the prose sterile or changing its meaning.

Handoff

Report the documents reviewed or changed and the evidence used to verify them. Do not commit or open a pull request unless the operator asks.

Resources

• references/document-modes.md — choose and shape tutorials, how-to guides, reference, and explanation
• references/sentence-style.md — write plain, precise sentences and remove generated-sounding prose