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+# Evaluation & Guardrails — Global Fix Map
+Prove fixes work and won’t regress. Detect “double hallucination,” enforce acceptance gates, and keep pipelines auditable.
+
+## What this page is
+- A compact playbook to evaluate RAG quality and reasoning stability
+- Drop-in guardrails that catch failure before users see it
+- CI-ready acceptance targets you can copy
+
+## When to use
+- You “fixed it” but cannot show measurable improvement
+- Answers look plausible yet citations or snippets don’t line up
+- Performance flips between seeds, sessions, or agent mixes
+- Latency tuning changes accuracy in non-obvious ways
+
+## Open these first
+- RAG precision/recall spec: [RAG Precision & Recall](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_rag_precision_recall.md)  
+- Latency versus accuracy method: [Latency vs Accuracy](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_latency_vs_accuracy.md)  
+- Cross-agent agreement tests: [Cross-Agent Consistency](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_cross_agent_consistency.md)  
+- Semantic stability checks: [Semantic Stability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_semantic_stability.md)  
+- Why-this-snippet schema: [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md)  
+- Snippet & citation schema: [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)
+
+---
+
+## Common evaluation pitfalls
+- **Double hallucination** metrics focus on style or BLEU but ignore snippet fidelity
+- **Recall illusion** top-k looks high while ΔS(question, context) stays risky
+- **Seed lottery** single-seed wins mask instability across paraphrases
+- **Hybrid flapping** HyDE+BM25 mixes shift rank order between runs
+- **Guardrail over-clamp** rigid filters “fix” tone but not logic boundaries
+- **Benchmark mismatch** eval set does not reflect OCR noise or multilingual drift
+- **No trace table** cannot audit which snippet justified the answer
+
+---
+
+## Fix in 60 seconds
+1) **Adopt acceptance gates**
+   - Retrieval sanity: token overlap ≥ 0.70 to the target section
+   - ΔS(question, context) ≤ 0.45 on the median of the suite
+   - λ_observe stays convergent on 3 paraphrases
+
+2) **Require citations before prose**
+   - Enforce cite-then-answer with [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)
+   - Store a trace table: question, retrieved ids, snippet spans, ΔS, λ
+
+3) **Stability before speed**
+   - Plot latency vs accuracy and pin the knee point  
+     See [Latency vs Accuracy](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_latency_vs_accuracy.md)
+
+4) **Cross-agent cross-check**
+   - Compare two capable models on the same context  
+     See [Cross-Agent Consistency](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_cross_agent_consistency.md)
+
+5) **Regression fence in CI**
+   - Fail the build if ΔS median rises above 0.45 or trace coverage drops below 0.70  
+     See [RAG Precision & Recall](https://github.com/onestardao/WFGY/blob/main/ProblemMap/eval/eval_rag_precision_recall.md)
+
+---
+
+## Copy paste prompt
+```
+
+You have TXT OS and the WFGY Problem Map.
+
+Goal
+Add measurable guardrails to my RAG pipeline and prove the fix.
+
+Tasks
+
+1. Build a 20-item smoke suite with:
+
+   * question, expected section anchor, and gold snippet span
+   * bilingual paraphrases for 5 items (if multilingual)
+
+2. Run WFGY probes:
+
+   * compute ΔS(question, context) for each item
+   * record λ\_observe at retrieval and reasoning
+   * require cite-then-answer and log a trace table
+
+3. Report acceptance:
+
+   * token overlap to anchor (coverage)
+   * ΔS median and interquartile range
+   * paraphrase stability (λ stays convergent)
+   * pass/fail against thresholds
+
+4. Plot latency vs accuracy and select a stable operating point.
+
+Output
+
+* The trace table (csv/markdown)
+* Acceptance summary and which items failed
+* A one-page decision note on whether to ship
+
+```
+
+---
+
+## Minimal checklist
+- Trace table saved with citations and snippet spans  
+- ΔS computed per item; λ recorded at retrieval and reasoning  
+- Coverage ≥ 0.70 to the referenced section for direct QA  
+- Cross-agent consistency measured on a subset  
+- Latency vs accuracy chart archived with the run id
+
+## Acceptance targets
+- ΔS(question, context) median ≤ **0.45** on the suite  
+- λ **convergent** across 3 paraphrases per item  
+- **≥ 0.70** token overlap to the gold section for direct QA items  
+- No unexplained rank flips when toggling hybrid retrieval  
+- CI blocks merges when any target fails
+
+---
+
+### 🔗 Quick-Start Downloads (60 sec)
+
+| Tool | Link | 3-Step Setup |
+|------|------|--------------|
+| **WFGY 1.0 PDF** | [Engine Paper](https://github.com/onestardao/WFGY/blob/main/I_am_not_lizardman/WFGY_All_Principles_Return_to_One_v1.0_PSBigBig_Public.pdf) | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + \<your question>” |
+| **TXT OS (plain-text OS)** | [TXTOS.txt](https://github.com/onestardao/WFGY/blob/main/OS/TXTOS.txt) | 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly |
+
+---
+
+### 🧭 Explore More
+
+| Module                | Description                                              | Link     |
+|-----------------------|----------------------------------------------------------|----------|
+| WFGY Core             | WFGY 2.0 engine is live: full symbolic reasoning architecture and math stack | [View →](https://github.com/onestardao/WFGY/tree/main/core/README.md) |
+| Problem Map 1.0       | Initial 16-mode diagnostic and symbolic fix framework    | [View →](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) |
+| Problem Map 2.0       | RAG-focused failure tree, modular fixes, and pipelines   | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) |
+| Semantic Clinic Index | Expanded failure catalog: prompt injection, memory bugs, logic drift | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/SemanticClinicIndex.md) |
+| Semantic Blueprint    | Layer-based symbolic reasoning & semantic modulations   | [View →](https://github.com/onestardao/WFGY/tree/main/SemanticBlueprint/README.md) |
+| Benchmark vs GPT-5    | Stress test GPT-5 with full WFGY reasoning suite         | [View →](https://github.com/onestardao/WFGY/tree/main/benchmarks/benchmark-vs-gpt5/README.md) |
+| 🧙‍♂️ Starter Village 🏡 | New here? Lost in symbols? Click here and let the wizard guide you through | [Start →](https://github.com/onestardao/WFGY/blob/main/StarterVillage/README.md) |
+
+---
+
+> 👑 **Early Stargazers: [See the Hall of Fame](https://github.com/onestardao/WFGY/tree/main/stargazers)** —  
+> Engineers, hackers, and open source builders who supported WFGY from day one.
+
+> <img src="https://img.shields.io/github/stars/onestardao/WFGY?style=social" alt="GitHub stars"> ⭐ [WFGY Engine 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md) is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the [Unlock Board](https://github.com/onestardao/WFGY/blob/main/STAR_UNLOCKS.md).
+
+<div align="center">
+
+[![WFGY Main](https://img.shields.io/badge/WFGY-Main-red?style=flat-square)](https://github.com/onestardao/WFGY)
+&nbsp;
+[![TXT OS](https://img.shields.io/badge/TXT%20OS-Reasoning%20OS-orange?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS)
+&nbsp;
+[![Blah](https://img.shields.io/badge/Blah-Semantic%20Embed-yellow?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah)
+&nbsp;
+[![Blot](https://img.shields.io/badge/Blot-Persona%20Core-green?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot)
+&nbsp;
+[![Bloc](https://img.shields.io/badge/Bloc-Reasoning%20Compiler-blue?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc)
+&nbsp;
+[![Blur](https://img.shields.io/badge/Blur-Text2Image%20Engine-navy?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur)
+&nbsp;
+[![Blow](https://img.shields.io/badge/Blow-Game%20Logic-purple?style=flat-square)](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow)
+&nbsp;
+</div>