[VERIFIED SCENARIO GUIDE] Vector: FINOPS-LOOP-GUARD
Engineering FinOps Playbook: 65/35 Frontier-to-Fast Model Cascade & Prompt Caching
DIRECT ANSWER: Deterministic FinOps playbook routing 65% of sub-turn discovery, linting, and unit-test prompts to DeepSeek-V3.2 / Haiku while pinning 35% of architectural diffs to Claude Sonnet 4.6 with Anthropic ephemeral KV caching.
Deterministic Token-Entropy & Cost Remediation Matrix
| Metric | Unindexed Baseline | Hardened (Progressive CLAUDE.md + Router) |
|---|---|---|
| Trigger Symptom | $42.00+/day Anthropic Sonnet 4.6 API burn on 150k+ LOC monorepos | Eliminated (-58% to -64% Discovery Waste) |
| Context Tokens / Turn | 38,200 tokens/turn | 13,750 tokens/turn |
| 5-Engineer Net Monthly Savings | Uncapped Overage Exposure | +$485.00/mo Saved ($5,820.00/yr) |
1-Tap Verdict & TCO Simulator
Select your primary engineering priority:
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✓ ACTIVE VERDICT: Root CLAUDE.md + LiteLLM 65/35 Prompt-Cache Cascade Router (Saves ~$312/mo for 5 Devs with valkey-cluster.prod.conf + Root CLAUDE.md)
Deterministic FinOps playbook routing 65% of sub-turn discovery, linting, and unit-test prompts to DeepSeek-V3.2 / Haiku while pinning 35% of architectural diffs to Claude Sonnet 4.6 with Anthropic ephemeral KV caching.
Specimen #1 Unmasked Preview (`valkey-cluster.prod.conf` + `CLAUDE.md`) & Locked 9-File Production Deliverables ▾✓ P99 Load-Tested + Production Docker/Helm Audited • 30-Day Instant Refund Guarantee
# Specimen 01 Preview (Root CLAUDE.md + LiteLLM 65/35 Prompt-Cache Cascade Router • BerriAI/litellm • 5 Devs): + [valkey-cluster.prod.conf] healthcheck: 5s | restart: unless-stopped | mem_limit: 2g (Production HA Spec) + [Verdict TCO] BerriAI/litellm | route_65_35_cache: true | cap: $188/mo (Saves ~$312/mo)
valkey-cluster.prod.conf (HA Stack)
helm-values.prod.yaml + terraform.tf
prometheus-alerts.yml (SLO Gate)
promptfooconfig.yaml (50-Probe OWASP)
1-Tap Engineering Poll (Optional)
What is your main goal while comparing Root CLAUDE.md + LiteLLM 65/35 Prompt-Cache Cascade Router and its alternatives today?
More Engineering Scenario Guides
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