# OpenRouter: Guardrails and Fix Patterns
🧭 Quick Return to Map
> You are in a sub-page of **LLM_Providers**.
> To reorient, go back here:
>
> - [**LLM_Providers** — model vendors and deployment options](./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.
> If you need the full triage and all prescriptions, return to the Emergency Room lobby.
A practical checklist to keep responses stable while routing through OpenRouter. Use this page when behavior flips across models, routes, or sessions.
**Acceptance targets**
- ΔS(question, context) ≤ 0.45
- λ stays convergent across 3 paraphrases
- Coverage ≥ 0.70 for citation style QA
- Snippet ↔ citation table present
**Quick links**
- Visual map and recovery: [RAG Architecture & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md)
- End to end knobs: [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md)
- Why this snippet: [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md)
- Logic repair: [Logic Collapse & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md)
- Long chain drift: [Context Drift](https://github.com/onestardao/WFGY/blob/main/ProblemMap/context-drift.md)
- Entropy melt: [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md)
- Data schemas: [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md)
- Embedding vs meaning: [Embedding ≠ Semantic](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md)
- Multilingual: [Multilingual Guide](https://github.com/onestardao/WFGY/blob/main/ProblemMap/multilingual-guide.md)
- Ops and live triage: [Debug Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/debug_playbook.md) · [Live Monitoring](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/live_monitoring_rag.md)
---
## 1) Minimal setup checklist
Pin these before debugging model logic.
- Route selection
Use explicit model ids. Disable any auto fallback if you need reproducibility. Log the final route id that served the request. See [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md).
- System prompt handling
Ensure the system message is always sent in the payload. Do not rely on UI side memory. If sessions change tabs, stamp a `mem_rev` and reload the system block. See [patterns: memory desync](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_memory_desync.md).
- Token limits and truncation
Verify max tokens per route. Truncation that drops headers will spike ΔS. Reorder context with a citation first schema. See [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md).
- JSON and tool calling
Fix the exact function schema. Return to plain text if tool calls vary across sub models. If JSON strictness wobbles, clamp with a cite then answer envelope. See [Logic Collapse & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md).
- Temperature and top_p
Keep one of them fixed. If variance climbs during long dialogs, apply BBAM and reduce randomness. See [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md).
- Streaming flags and timeouts
Disable streaming during audits to capture full text. Set sane timeouts and retries at the client.
---
## 2) Quick triage with WFGY instruments
Run this order. Stop as soon as you localize the fault.
1) **ΔS(question, retrieved_context)**
- ΔS ≥ 0.60 → perception issue. Check chunking and route level truncation.
- Open [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md) and [Hallucination](https://github.com/onestardao/WFGY/blob/main/ProblemMap/hallucination.md).
2) **λ_observe layer tags**
- retrieval convergent, reasoning divergent → interpretation collapse.
- Open [Logic Collapse & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md).
3) **E_resonance vs length**
- E rises with length while ΔS stays high → entropy melt, clamp variance.
- Open [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md).
---
## 3) Common failure patterns on OpenRouter and fixes
### A) Silent route change or fallback
**Signs**
- Same prompt flips tone or format between calls.
- Logs show a different backing model id.
**Fix**
- Pin a single route id. Record the final served model in traces.
- Recheck ΔS. If still high, audit prompt headers and truncation.
- Read [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md) and [Debug Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/debug_playbook.md).
### B) System prompt dropped after tab or session swap
**Signs**
- First answer follows policy, later turns forget constraints.
- λ flips divergent only after a refresh.
**Fix**
- Stamp `mem_rev` and `mem_hash` per turn. Reload system block when mismatch.
- See [patterns: memory desync](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_memory_desync.md) and [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md).
### C) JSON or tool schema oscillation
**Signs**
- Tool outputs valid once, then free text next call.
- Fields appear or vanish across routes.
**Fix**
- Wrap with citation first schema, then answer.
- Apply BBCR bridge step when λ turns divergent at reasoning.
- Open [Logic Collapse & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md) and [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md).
### D) Long chain degradation
**Signs**
- Capitalization drifts, references smear, later turns contradict earlier ones.
**Fix**
- Apply semantic chunking on inputs.
- Stabilize with BBAM, then re anchor with section headers.
- Read [Context Drift](https://github.com/onestardao/WFGY/blob/main/ProblemMap/context-drift.md) and [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md).
### E) Multilingual or tokenizer mismatch
**Signs**
- High vector similarity yet wrong meaning on non English.
- ΔS flat high across k.
**Fix**
- Switch to multilingual embeddings or normalize analyzer.
- See [Embedding ≠ Semantic](https://github.com/onestardao/WFGY/blob/main/ProblemMap/embedding-vs-semantic.md) and [Multilingual Guide](https://github.com/onestardao/WFGY/blob/main/ProblemMap/multilingual-guide.md).
---
## 4) Verification and regression gates
Use this short gate before merging changes.
- Retrieval sanity
Coverage ≥ 0.70 on target section. ΔS(question, context) ≤ 0.45.
- Reasoning stability
λ remains convergent across three paraphrases. No schema leak.
- Traceability
Produce snippet ↔ citation table per answer. See [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md).
- Long dialog check
E_resonance stays flat at window joins. See [Entropy Collapse](https://github.com/onestardao/WFGY/blob/main/ProblemMap/entropy-collapse.md).
---
## 5) Escalation criteria
Change structure when any holds.
- ΔS remains ≥ 0.60 after prompt and retrieval fixes
Rebuild index or adjust analyzer. See [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md).
- λ flips divergent as soon as two sources are mixed
Enforce source fences and SCU. See [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md).
- JSON mode cannot hold across routes
Disable tool calls for that path. Return to plain text with citation first. See [Logic Collapse & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/logic-collapse.md).
### 🔗 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 + \” |
| **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.
> 
⭐ [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).
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