# Shadow Traffic Mirroring — OpsDeploy
🧭 Quick Return to Map
> You are in a sub-page of **OpsDeploy**.
> To reorient, go back here:
>
> - [**OpsDeploy** — operations automation and deployment pipelines](./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.
Safely mirror real production requests to a new model or service without affecting users. Use this page to validate output drift, latency, rate limits, and side-effect isolation before any canary or switchover.
## Open these first
- Visual map and recovery: [RAG Architecture & Recovery](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md)
- End to end retrieval knobs: [Retrieval Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-playbook.md)
- Live ops: [Live Monitoring for RAG](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/live_monitoring_rag.md), [Debug Playbook](https://github.com/onestardao/WFGY/blob/main/ProblemMap/ops/debug_playbook.md)
- Safe rollouts nearby: [Staged Canary](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/staged_rollout_canary.md), [Blue-Green Switchovers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/blue_green_switchovers.md)
- Backpressure and retries: [Rate Limit Backpressure](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/rate_limit_backpressure.md), [Retry Backoff](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/retry_backoff.md)
## Acceptance targets
- ΔS(prod_answer, shadow_answer) ≤ 0.45 on three paraphrases
- λ remains convergent across two seeds
- P99 added latency from mirroring ≤ 5 percent of end-to-end
- Zero side effects from shadow path: writes blocked or redirected
- Sampling accuracy within ±2 percent of configured shadow ratio
## 60-second checklist
1) **Mirror only reads**
Route the same request payload to the shadow service. Strip tokens and secrets not required for read paths. Block tool calls and any writes.
2) **Tag and store**
Append `shadow_id`, `req_hash`, `model_rev`, `index_hash`. Persist both prod and shadow outputs with ΔS and λ.
3) **Throttles**
Apply a hard cap on mirror QPS. Respect provider limits. Enable backpressure guards.
4) **Drift gates**
Alert when mean ΔS exceeds 0.45 or when λ flips on harmless paraphrases.
## Minimal playbook
- **Ingress**: duplicate the request at the edge or gateway. Never await the shadow response on the user path.
- **Sanitize**: remove side-effect headers, redact PII fields that the shadow does not need.
- **Observe**: log `ΔS`, `λ_state`, `shadow_latency_ms`, HTTP codes, rate-limit headers.
- **Compare**: evaluate citation alignment with [Retrieval Traceability](https://github.com/onestardao/WFGY/blob/main/ProblemMap/retrieval-traceability.md) and snippet schema from [Data Contracts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/data-contracts.md).
- **Decide**: graduate to canary if drift stays within target for 24 hours and error budget is untouched.
## Common pitfalls → fix
- Shadow answers write or call tools
→ run in read-only mode and stub tool responses. See [Idempotency & Dedupe](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/idempotency_dedupe.md).
- Cache pollution from shadow
→ segregate caches by `shadow=true` key segment. See [Cache Warmup & Invalidation](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/cache_warmup_invalidation.md).
- Latency spikes
→ apply sample ratio caps and separate thread pools. Add [Backpressure](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/rate_limit_backpressure.md).
- Unreliable comparisons
→ normalize prompts and headers, align indexes with [Vector Index Build & Swap](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/vector_index_build_and_swap.md).
## Escalate
Promote to [Staged Canary](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OpsDeploy/staged_rollout_canary.md) when drift and error rates meet targets for a full diurnal cycle and shadow P95 latency increase is under 3 percent.
---
### 🔗 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
| 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.
[](https://github.com/onestardao/WFGY)