fabius-archivumlisted
Install: claude install-skill shear559/fabius
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# Fabius Archivum — don't re-derive what you already learned
*Archivum* — the record office, where what's settled is kept. An agent that re-researches every session pays full price each time. This layer makes knowledge compound: write it down, link it, retrieve it, keep it true.
## Three layers
- **Raw sources** — the immutable source-of-truth documents. Read them, never edit them.
- **The wiki** — an agent-owned directory of markdown pages (entities, concepts, comparisons, syntheses). This is the externalized long-term memory — the part that compounds.
- **The schema** — a concrete config encoding the directory structure, the conventions, and the workflows. It turns a chat assistant into a disciplined archivist.
Two navigation files keep hundreds of pages tractable:
- **Index** — a catalog: every page with its link, a one-line summary, and metadata. Read this FIRST at query time, before opening any page.
- **Log** — append-only, consistently prefixed, chronological. Greppable and tailable with plain unix tools.
## The three operations
**Write boundary.** Archivum never turns a read-only task into a mutation. Ingest, capture, file-back, scaffold, and lint writes run only when the workspace has opted into Archivum memory **and** its contract authorizes those writes. Otherwise return a proposed record or diff without touchin