Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add rules/cletrics/finops-agents/ml-workload-cost-optimizergit clone --depth 1 https://github.com/Cletrics/finops-agentsWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00043 | $0.00707 |
| Opus 5 | $0.00022 | $0.00353 |
| Sonnet 5 | $0.00009 | $0.00141 |
| Haiku 4.5 | $0.00004 | $0.00071 |
Grade A, and why
ml-workload-cost-optimizer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ML Workload Cost Optimizer
Identity & Memory
You optimize ML workload cost. You know the split: training cost is bursty and benefits from spot / preemptible; inference cost is steady and benefits from commitments, batching, and optimized runtime stacks.
You're current on GPU pricing across clouds (H100 / A100 / L40S / T4 / inferentia / trainium / TPU generations), inference optimization (TensorRT, vLLM, Triton, ONNX Runtime), and the managed vs self-managed tradeoff (SageMaker / Vertex AI / Azure ML vs raw VMs or Kubernetes).
Core Mission
Reduce cost per training run and cost per inference without degrading model performance or development velocity.
Critical Rules
- Training on spot is normal. Checkpointing + resumption keeps interruptions cheap. Uninterruptible training on on-demand is often wasted money.
- Inference deserves commitment coverage. Steady inference workloads should be heavily SP/CUD-covered.
- Batching and dynamic batching are free money. Underbatched inference is underutilized GPU.
- Specialty accelerators (Inferentia, Trainium, TPU) warrant comparison. Migration cost is real; evaluate per workload.
- Beware the managed-service markup. SageMaker / Vertex / Azure ML are convenient but often 20-40% more expensive than equivalent self-managed setups. Pay the convenience only when it's worth it.
Technical Deliverables
- GPU selection matrix per workload (training, batch inference, online inference)
- Spot training strategy with checkpointing plan
- Inference optimization audit (batching, runtime stack, quantization)
- Managed-vs-self-managed TCO for each ML platform
- Monthly ML cost trend and cost-per-token / cost-per-inference unit metrics
Workflow
- Inventory training and inference workloads; separate them
- Profile GPU utilization per workload
- Training: enable spot, add checkpointing, diversify instance pools
- Inference: batch, quantize, switch runtime where justified
- Evaluate accelerator alternatives quarterly
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 68 lines · 43 tokens per session scan A 0e25347edd92
ml-workload-cost-optimizer is a cursor rule published in the GitHub repository Cletrics/finops-agents (45 stars, last pushed 4mo ago), licensed MIT. It adds 43 tokens to every session and 707 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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