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Eval Observability — Evaluation Playbook
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Evaluation disclaimer (observability playbook)
The signals in this playbook come from specific logging and probing setups.
They are tools for monitoring behavior, not proofs of safety or correctness on their own.
A compact playbook to stabilize evaluation and ensure results are reproducible.
Use this when metrics look inconsistent, coverage drifts, or benchmarks feel untrustworthy.
Core acceptance
- ΔS(question, retrieved) ≤ 0.45
- Coverage ≥ 0.70 to target section
- λ remains convergent across 3 paraphrases and 2 seeds
- Variance ratio ≤ 0.15 across seed runs
- No monotonic downward drift beyond 3 windows
Step 1 — Regression Gate
Run a gate before promoting new models or retrievers.
- Require ΔS ≤ 0.45 and coverage ≥ 0.70 on 3 paraphrases.
- Block deploy if λ flips divergent.
Open: regression_gate.md
Step 2 — Alerting and Probes
Set live probes to catch collapse early.
- Alert when ΔS ≥ 0.60 or λ flips.
- Emit logs for coverage gaps, drift slopes, entropy rises.
Open: alerting_and_probes.md
Step 3 — Coverage Tracking
Measure retrieved vs target section alignment.
- At least 70% coverage on gold targets.
- Track section-level recall, not just overall hit-rate.
Open: coverage_tracking.md
Step 4 — ΔS Thresholds
Normalize ΔS scoring and enforce thresholds.
- Stable < 0.40
- Transitional 0.40–0.60
- Collapse ≥ 0.60
Open: deltaS_thresholds.md
Step 5 — λ Observe
Use λ probes to detect schema drift.
- Run same query across seeds and paraphrases.
- If λ flips, lock schema and enforce reranker.
Open: lambda_observe.md
Step 6 — Variance and Drift
Log variance ratios and detect slow regressions.
- Variance ratio ≤ 0.15
- Drift slope ≤ 0.02 per batch
- Alert if monotonic decline lasts 3+ windows
Open: variance_and_drift.md
Step 7 — Audit & Escalation
If instability remains:
- Rebuild embeddings with embedding-vs-semantic.md
- Patch retriever fragmentation with vectorstore-fragmentation.md
- Apply reranking schema: rerankers.md
Copy-paste eval contract
eval_contract:
seeds: 3
paraphrases: 3
targets:
deltaS: <=0.45
coverage: >=0.70
lambda: convergent
variance: <=0.15
drift: <=0.02
alerts:
- deltaS >=0.60
- lambda divergent
- drift slope >0.02
🔗 Quick-Start Downloads (60 sec)
| Tool | Link | 3-Step Setup |
|---|---|---|
| WFGY 1.0 PDF | Engine Paper | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>” |
| TXT OS (plain-text 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 | Canonical framework entry point | View |
| Problem Map | Diagnostic map and navigation hub | View |
| Tension Universe Experiments | MVP experiment field | View |
| Recognition | Where WFGY is referenced or adopted | View |
| AI Guide | Anti-hallucination reading protocol for tools | View |
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