Technical

For small corpora, bm25 is the adult in the room

Memory without time is a liar with confidence

Shadow indexes buy speed without selling truth

Files are truth. Indexes are conveniences.

Server Components by default in Next.js 16. Client components are an explicit escape hatch, not a convenience. Every 'use client' is a bundle cost and a hydration risk — justify it or delete it.

Word-trigram Jaccard is good enough for contradiction detection at vault scale. You don't need a cross-encoder to notice that 'use Stripe' and 'don't use Stripe pre-BV' are fighting.

Temporal metadata is the frontier: validFrom, validUntil, lastConfirmed, confidenceDecay. A memory without time is a claim without provenance — and claims without provenance lie to you.

FTS5 with bm25() scoring gives you hybrid search for free — lexical relevance ranked by term frequency, no embeddings needed for 90 percent of vault queries. Reach for vectors only when bm25 fails.

JSONL is the source of truth, SQLite is a rebuildable index. If you can't delete the database and regenerate it from the text files in under a minute, you've coupled your memory to your query engine — that's a bug.

Creation is the art of actualizing potential — giving matter to Form and Form to matter.

80% precision, 15% mythic compression, 5% humor.

Magical intelligence, not childish fantasy. Structurally serious beneath mythic framing.

There is no separation between Creator, Creation, and the Creative Field.

The source of all creation is the willingness to be incomplete.

Build your roots before you reach for the sky.

Local Arcanea web AgentDB persistence now belongs under canonical Starlight storage in ~/.starlight/agentdb rather than process memory. Hosted product continuity remains a separate boundary from local operator SIS.

Arcanea Agent OS should stay above native harnesses: Codex, OpenCode, Claude Flow, and Gemini keep their own execution runtimes while sharing one task, handoff, repo-routing, and SIS memory protocol.

Next.js typegen needs .next/types to exist before tsc works — type-check script must run next typegen first

Project-aware retrieval should score/rank context items, not dump everything — selectRelevantProjectContext in retrieval.ts

GSAP ScrollTrigger + Three.js @react-three/fiber already installed in arcanea-ai-app — use them instead of adding new animation libs

R2 has free egress, Supabase charges over 2GB — R2 wins for media at scale

Novel (Apache-2.0) wraps Tiptap and gives AI slash commands free — no need for Tiptap Pro