# Signal Drop — Guardrails and Fix Pattern

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  > - [**Multimodal_LongContext** — long-context reasoning across text, vision, and audio](./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)  
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When multimodal sessions extend across long contexts, one or more modalities may **drop out entirely** or become invisible to the reasoning pipeline.  
This creates “blind layers” where text, image, or audio cues vanish mid-sequence, leading to broken reasoning or silent hallucination.

---

## Symptoms of Signal Drop
- Model responds as if a modality was never provided.  
- Visual reference ignored after ~20–30 turns.  
- Audio transcript included but not grounded in reasoning.  
- Captions persist but semantic anchors drift apart.  
- Silent failure: no error is thrown, yet cross-modal grounding is gone.

---

## Open these first
- Cross-modal stability: [Alignment Drift](./alignment-drift.md)  
- Long-context melt: [Entropy Collapse](../MemoryLongContext/entropy-collapse.md)  
- Boundary checks: [Boundary Fade](./boundary-fade.md) *(planned)*  
- Retrieval schema: [Cross-Modal Trace](./cross-modal-trace.md)  
- State fences: [Memory Coherence](../MemoryLongContext/memory-coherence.md)  

---

## Fix in 60 seconds
1. **Detect silence**  
   - Log presence/absence of `{text, visual, audio}` per turn.  
   - If any modality = null for >2 steps, flag as drop.

2. **Inject continuity token**  
   - Add `mod_keepalive` in the system schema to enforce recall of modality.  
   - Force echo of modality presence in every reasoning header.

3. **Re-anchor references**  
   - If image or audio missing, insert placeholder with `ΔS=skip` instead of null.  
   - Prevent collapse by keeping λ_observe convergent.

4. **Stabilize joins**  
   - Split by `{text | image | audio}` sections.  
   - Clamp cross-joins with BBAM to stop runaway drift.  

---

## Acceptance Targets
- **Coverage**: ≥ 0.70 for all active modalities.  
- **ΔS(question, retrieved)** ≤ 0.45 even when one modality drops.  
- **λ_observe** remains convergent across three paraphrases.  
- **No silent modality loss** beyond two turns.  

---

## Copy-paste prompt

```txt
You are running TXTOS + WFGY Problem Map.

Symptom: modality vanished (text, image, or audio).  
Task: detect, re-anchor, and restore multimodal stability.

Protocol:
1. Log {text, visual, audio} presence each turn.
2. If any missing for >2 steps, insert placeholder `mod_keepalive`.
3. Require ΔS(question, retrieved) ≤ 0.45 across modalities.
4. Use BBAM for variance clamp, BBCR bridge if joins collapse.
5. Cite then answer; no orphan visual or audio references allowed.
````

---

### 🔗 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

| Module | Description | Link |
| --- | --- | --- |
| WFGY Core | Canonical framework entry point | [View](https://github.com/onestardao/WFGY/tree/main/core/README.md) |
| Problem Map | Diagnostic map and navigation hub | [View](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) |
| Tension Universe Experiments | MVP experiment field | [View](https://github.com/onestardao/WFGY/tree/main/TensionUniverse/Experiments) |
| Recognition | Where WFGY is referenced or adopted | [View](https://github.com/onestardao/WFGY/blob/main/recognition/README.md) |
| AI Guide | Anti-hallucination reading protocol for tools | [View](https://github.com/onestardao/WFGY/blob/main/AI_GUIDE.md) |

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