Turn the whole universe into markdown

Any talk, blog, post, or conversation they named is context. Write it as a .md file.

• IS: a markdown file the next turn can reread, source named in the frontmatter, using tools the agent already has.
• IS NOT: answering from a fetch; summarizing into chat; inventing a talk; crawling the web; converting the repo; calling Firecrawl or OpenAI; asking for keys; installing a CLI. A URL cited to fix a bug is not a conversion.

Three rules:

1. Write a file. Chat-only output is a failed conversion. The file is the only store that survives compact.
2. Keep the body. Drop nav and cookie chrome. Do not drop paragraphs.
3. Stop instead of guessing. A missing file is better than a made-up one. Never fill a gap from memory.

The agent already has curl, vision, Read, Write, and a shell. Those are the converters. This skill is the constraint. No keys. No CLI. Only the sources they named this turn.

Done when

A .md file exists where this harness keeps files the user can open later. Chat names that path. Read of that path returns the body. Chat-only output is a failed conversion.