Ingesting: When the user shares a URL, article, PDF, transcript, or any source material and says to remember, file, catalog, research, or "add to wiki" — invoke the wiki skill to process it.

Querying: When answering questions that could benefit from accumulated knowledge — check wiki/index.md first. The wiki may have synthesized information from multiple sources that's richer than any single search result.

Filing good answers: When you produce a substantial, reusable answer (a comparison, a synthesis, a deep analysis) — offer to file it as a wiki page so it compounds rather than disappearing into chat history.

Wiki vs memory

Memory (/workspace/trusted/MEMORY.md) = operational context. Preferences, feedback, project state. Short entries.
Wiki (/workspace/trusted/wiki/) = domain knowledge. Facts, concepts, entities, syntheses from sources. Structured pages with cross-references.

When you learn something operational (a correction, a preference), put it in memory. When you learn domain knowledge (a fact, a concept, a pattern), put it in the wiki. When answering questions, check both.