Editorial methodology

Useful first. Evidence visible. Limits named.

Every answer starts with a real question and a direct response. We prefer primary research and authoritative institutions, open every cited source, and keep a claim-level source ledger.

Publication gates

• At least three authoritative sources
• No unsupported material factual or numerical claim
• A direct answer in the opening paragraph
• A documented original contribution
• Duplicate, link, accessibility, schema, build, and crawlability checks

If any gate fails, the page is quarantined instead of published. Developer API measurements are citation samples, not guarantees of placement in consumer answer engines.

Review and updates

Pages show publication and update dates, author and reviewer, sources, scope notes, and related questions. Corrections are made in the source record and republished.