Knowledge Expiry — Enterprise Knowledge Governance

🧭 Quick Return to Map

You are in a sub-page of Enterprise_Knowledge_Gov.
To reorient, go back here:

Enterprise_Knowledge_Gov — corporate knowledge management and governance

WFGY Global Fix Map — main Emergency Room, 300+ structured fixes

WFGY Problem Map 1.0 — 16 reproducible failure modes

Think of this page as a desk within a ward.
If you need the full triage and all prescriptions, return to the Emergency Room lobby.

Guardrails and fix patterns to handle the expiry, staleness, or invalidation of enterprise knowledge inside AI pipelines. Use this page when retrieved data may be out of date, unmaintained, or legally required to expire.

When to use this page

RAG retrieves documents that are outdated but still present in the index.
Policies require document expiry (e.g., 3-year rotation, GDPR “right to be forgotten”).
Model cites knowledge that has been deprecated.
Knowledge base retains drafts or revoked versions.

Core acceptance targets

Every document has an explicit expiry_date or revision_hash.
Retrieval never selects content beyond expiry.
Expired or revoked documents fully deleted from vector stores.
Audit logs record expiry enforcement at retrieval time.

Typical expiry problems → exact fix

Symptom	Likely cause	Open this
Outdated answers from old policies	No expiry metadata on ingestion	data-contracts.md
Deprecated snippets retrieved	Index not refreshed after content change	retrieval-playbook.md
Conflicting answers (old vs new)	Stale embeddings and no version hashing	context-drift.md
Expired docs still cited	Traceability schema missing `expiry_date`	retrieval-traceability.md

Fix in 60 seconds

Add expiry metadata on ingestion:

{
  "document_id": "policy-123",
  "revision_hash": "ab89e...",
  "expiry_date": "2026-01-01"
}


2. **Drop expired docs** from index during nightly rebuilds.
3. **Enforce live expiry check** at retrieval:

   * Reject snippets where `expiry_date < today`.
   * Log `expired=true` in audit record.
4. **Verify ΔS stability** only against valid revisions.

---

## Copy-paste probe template

```txt
You have TXTOS and the WFGY Problem Map loaded.

My RAG system retrieved:
- doc_id, revision_hash, expiry_date

Task:
1. Drop all snippets past expiry_date.
2. Log ΔS(question,retrieved), λ_state, and expired flag.
3. If expired=true, cite the Problem Map page to rebuild the index.
Return JSON: { "valid_snippets": [...], "expired_snippets": [...], "ΔS": 0.xx, "λ_state": "<>", "next_fix": "..." }
```

---

## Escalate when

* Same query alternates between expired and valid docs.
* Expired documents remain in retrieval despite metadata.
* Audit logs show `expiry_date` ignored during reranking.

For deeper cases, apply [bootstrap-ordering.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/bootstrap-ordering.md) to enforce correct load order and [ops/debug\_playbook.md](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/debug_playbook.md) for runtime tracing.

---

### 🔗 Quick-Start Downloads

| 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 |

---

<!-- WFGY_FOOTER_START -->

### 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 |

If this repository helped, starring it improves discovery so more builders can find the docs and tools.  
[![GitHub Repo stars](https://img.shields.io/github/stars/onestardao/WFGY?style=social)](https://github.com/onestardao/WFGY)

<!-- WFGY_FOOTER_END -->

要我直接繼續生嗎？

6.4 KiB Raw Blame History Unescape Escape

Knowledge Expiry — Enterprise Knowledge Governance

When to use this page

Core acceptance targets

Typical expiry problems → exact fix

Fix in 60 seconds

6.4 KiB

Raw Blame History