# Retrieval Traceability — Snippet Integrity & Audit Trail

<details>
  <summary><strong>🧭 Quick Return to Map</strong></summary>

<br>

  > You are in a sub-page of **MemoryLongContext**.  
  > To reorient, go back here:  
  >
  > - [**MemoryLongContext** — extended context windows and memory retention](./README.md)  
  > - [**WFGY Global Fix Map** — main Emergency Room, 300+ structured fixes](../README.md)  
  > - [**WFGY Problem Map 1.0** — 16 reproducible failure modes](../../README.md)  
  >
  > Think of this page as a desk within a ward.  
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</details>


Citations that look right can still hide silent drift.  
This guardrail defines how to enforce **traceability schemas** so that every claim links back to a stable, reproducible snippet.

---

## When to use
- Answers cite a source but the snippet cannot be located.  
- Two runs over the same corpus produce different citations.  
- A fact is quoted but not aligned to any section anchor.  
- Long-context threads degrade and snippets blur into paraphrase.  
- Multi-agent systems pass partial context and lose attribution.  

---

## Root causes
- **Orphan citations**: snippet ID missing or fabricated.  
- **Boundary drift**: citation spans cross section joins.  
- **Silent truncation**: tokens dropped at cut points.  
- **Cache overwrite**: citation schema lost after session reload.  
- **Free-text cites**: URLs or titles given without offsets.  

---

## Core acceptance targets
- Each claim must include `snippet_id`, `section_id`, `start_line`, `end_line`, `source_url`.  
- ΔS(question, retrieved) ≤ 0.45 overall.  
- Joins between snippets ≤ 0.50 ΔS.  
- λ convergent across 3 paraphrases.  
- Audit trail reproducible from log alone.  

---

## Structural fixes

- **Snippet table schema**  
  Require `{snippet_id | section_id | start_line | end_line | citation}`.  

- **Fence joins**  
  Split at section boundaries. Reject cross-section reuse.  

- **Trace log**  
  Store `{ΔS, λ_state, mem_rev, mem_hash}` per step.  

- **Contract lock**  
  Apply [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md) for payload validation.  

---

## Fix in 60 seconds
1. **Enforce snippet table** with unique IDs and line ranges.  
2. **Verify ΔS** across each join ≤ 0.50.  
3. **Echo λ states** at retrieval, assembly, reasoning.  
4. **Reject orphan claims** (no snippet_id).  
5. **Log trail** so same inputs → same citations.  

---

## Copy-paste prompt

```

You have TXT OS and the WFGY Problem Map.

Goal: Ensure every claim links to a reproducible snippet.

Protocol:

1. Build a Snippet Table {snippet\_id, section\_id, start\_line, end\_line, citation}.
2. Require cite-then-answer.
3. Forbid cross-section reuse.
4. If a claim has no snippet\_id, stop and request citation.
5. Report ΔS(question,retrieved), joins ΔS, and λ states.
6. Store {mem\_rev, mem\_hash, task\_id} for audit trail.
7. Answer only with snippets present in the table.

```

---

## Common failure signals
- Citations alternate across runs → missing trace schema.  
- URL without offsets → orphan citation.  
- Facts cited but no snippet_id → schema lock failed.  
- Session reload erases citations → ghost cache in memory.  

---

### 🔗 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 |

---

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### Explore More

| Layer | Page | What it’s for |
| --- | --- | --- |
| ⭐ Proof | [WFGY Recognition Map](/recognition/README.md) | External citations, integrations, and ecosystem proof |
| ⚙️ Engine | [WFGY 1.0](/legacy/README.md) | Original PDF tension engine and early logic sketch (legacy reference) |
| ⚙️ Engine | [WFGY 2.0](/core/README.md) | Production tension kernel for RAG and agent systems |
| ⚙️ Engine | [WFGY 3.0](/TensionUniverse/EventHorizon/README.md) | TXT based Singularity tension engine (131 S class set) |
| 🗺️ Map | [Problem Map 1.0](/ProblemMap/README.md) | Flagship 16 problem RAG failure taxonomy and fix map |
| 🗺️ Map | [Problem Map 2.0](/ProblemMap/wfgy-rag-16-problem-map-global-debug-card.md) | Global Debug Card for RAG and agent pipeline diagnosis |
| 🗺️ Map | [Problem Map 3.0](/ProblemMap/wfgy-ai-problem-map-troubleshooting-atlas.md) | Global AI troubleshooting atlas and failure pattern map |
| 🧰 App | [TXT OS](/OS/README.md) | .txt semantic OS with fast bootstrap |
| 🧰 App | [Blah Blah Blah](/OS/BlahBlahBlah/README.md) | Abstract and paradox Q&A built on TXT OS |
| 🧰 App | [Blur Blur Blur](/OS/BlurBlurBlur/README.md) | Text to image generation with semantic control |
| 🏡 Onboarding | [Starter Village](/StarterVillage/README.md) | Guided entry point for new users |

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<!-- WFGY_FOOTER_END -->

要直接開始 **data-contracts.md** 嗎？