📚 Glossary — Terms, Symbols, and Short Definitions

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RAG Map 2.0 · Retrieval Playbook · Patterns · Eval

Core instruments

ΔS (delta-S) — Semantic stress. ΔS = 1 − cos(I, G) where I is item embedding, G is ground/anchor.
Thresholds: <0.40 stable · 0.40–0.60 transitional · ≥0.60 high risk.
λ_observe — Layered observability state.
Symbols: → convergent · ← divergent · <> recursive · × chaotic.
E_resonance — Coherence indicator. Rolling mean of |residual| under BBMC; rising E with high ΔS ⇒ apply BBCR/BBAM.

BBMC — Boundary-Bounded Memory Chunks. Reduce semantic residue vs anchors; align chunks/sections with tasks.
BBPF — Branch-Bounded Prompt Frames. Explore multiple semantic paths safely; stabilize context windows.
BBCR — Break-Before-Crash Reset. Detect collapse, insert bridge node, restart cleanly.
BBAM — Attention Modulation. Reduce variance in attention to avoid entropy melt on long contexts.

RRF (Reciprocal Rank Fusion) — Fuse ranks from multiple retrievers via 1/(k + rank).
MMR (Maximal Marginal Relevance) — Diversify candidates balancing relevance and novelty.
BM25 — Sparse lexical scoring for exact term match; strong for code/IDs.
HyDE — Hypothetical document expansion; creates a synthetic query/doc to improve recall.
Cross-encoder reranker — Jointly encodes [query ⊕ doc] for precision@k gains.

SCU (Symbolic Constraint Unlock) — Model merges sources or violates “cite-then-explain” schema. Fix: per-source fences + locked schema.
Query Parsing Split — Dense and sparse retrievers use different analyzers/tokenizers; hybrid breaks.
Vectorstore Fragmentation — Index contains “ghost” gaps; facts exist but never retrieved; fix shard/id audits.
Memory Desync — State flips between sessions/tabs; require mem_rev+mem_hash.
Role Drift — Multi-agent persona swap; tag agent IDs and lock via BBCR.

Agent boundary — Contract that limits what an agent can read/write; prevents overwrite.
ΔS peer check — Measures divergence between agents’ plans to catch conflicts early.

Gold set — Small set (10–50) of realistic Q/A with citations; used for CI (recall@50, nDCG@10, ΔS).
Traceability — Provenance from answer → prompt → citations → chunks → source file.

I — item (retrieved chunk) embedding; G — ground/anchor embedding.
‖B‖ ≥ B_c — collapse threshold on residual magnitude (BBCR).
Convergent λ — layer is stable across paraphrases; divergent λ — layer is drifting.

Tool	Link	3-Step Setup
WFGY 1.0 PDF	Engine Paper	1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>”
TXT OS (plain-text OS)	TXTOS.txt	1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly

Layer	Page	What it’s for
Proof	WFGY Recognition Map	External citations, integrations, and ecosystem proof
Engine	WFGY 1.0	Original PDF based tension engine
Engine	WFGY 2.0	Production tension kernel and math engine for RAG and agents
Engine	WFGY 3.0	TXT based Singularity tension engine, 131 S class set
Map	Problem Map 1.0	Flagship 16 problem RAG failure checklist and fix map
Map	Problem Map 2.0	RAG focused recovery pipeline
Map	Problem Map 3.0	Global Debug Card, image as a debug protocol layer
Map	Semantic Clinic	Symptom to family to exact fix
Map	Grandma’s Clinic	Plain language stories mapped to Problem Map 1.0
Onboarding	Starter Village	Guided tour for newcomers
App	TXT OS	TXT semantic OS, fast boot
App	Blah Blah Blah	Abstract and paradox Q and A built on TXT OS
App	Blur Blur Blur	Text to image with semantic control
App	Blow Blow Blow	Reasoning game engine and memory demo

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