# Session Summary — 2026-05-30

## Actions Taken
- Transformed `instruction.md` from Karpathy-style LLM Wiki prompt to **Cascade Knowledge Base** concept with layered read-only upstream KBs
- Created `wiki/index.md`, `wiki/overview.md`, `wiki/log.md` as required core pages
- Created `AGENTS.md` and `CLAUDE.md` with full agent instructions
- Created `README.md` with user-facing documentation
- Researched 16 improvement ideas from web, wrote to `ideas.md`
- Added `libs/` directory (git-managed copies, read-only, gitignored)
- Added `outputs/` and `tmp/` directories
- Added Index-First Navigation rule (recursive index.md scanning across all layers)
- Implemented all 14 selected ideas: frontmatter schema (confidence, tldr, quality, supersedes, freshness, retention), entity extraction & graph, lazy-loading index with Use When triggers, TLDR-first query layer, self-healing lint, dual-linking, automation hooks, error book, DDC, inbox workflow
- Created `wiki/graph/`, `wiki/entities/`, `raw/inbox/` directories
- Created `wiki/error-book.md` stub
- Restructured `wiki/index.md` into a routing table
- Removed `ideas.md` and its reference from README

## Decisions Made
- Cascade priority: wiki/ → linked/ → libs/ (alphabetical within each layer)
- linked/ for symlinks, libs/ for git-cloned copies (both read-only, never touched by agent)
- Local wiki always overrides upstream content
- Frontmatter schema standardized across all wiki pages
- Dual-linking ([[wikilinks]] + markdown) required for all cross-references
- `tmp/`, `libs/` gitignored; `outputs/` tracked