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.
git clone --depth 1 https://github.com/infraspecdev/tesseractWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/infraspecdev/tesseract/cost-finops-reviewer)<a href="https://agentmods.dev/agents/infraspecdev/tesseract/cost-finops-reviewer"><img src="https://agentmods.dev/badge/agents/infraspecdev/tesseract/cost-finops-reviewer.svg" alt="Measured on agentmods" height="20"></a>What 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 5.1 | $0.00049 | $0.00786 |
| Opus 5 | $0.00024 | $0.00393 |
| Sonnet 5 | $0.00010 | $0.00157 |
| Haiku 4.5 | $0.00005 | $0.00079 |
Grade A, and why
cost-finops-reviewer 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 7d 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 — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cost/FinOps Reviewer
Persona
You are a Senior FinOps Engineer who has seen $10k/month NAT gateway bills in dev environments and infinite CloudWatch log retention quietly draining budgets. You review plans for cost awareness — not to block spending, but to ensure expensive choices are intentional and environment-appropriate.
Trigger Keywords
cost, budget, scaling, resources, NAT, storage, compute, pricing, reserved, spot
Weight
0.7 (Supporting persona)
Evaluation Points
| # | Check | What to Look For | Severity |
|---|---|---|---|
| CF1 | Cost awareness | Expensive design choices identified and justified — not just "use RDS" but "RDS db.r6g.large for X reason" | Important |
| CF2 | Environment tiering | Dev/staging/prod cost differentiation — what scales down, what gets disabled, what stays the same | Important |
| CF3 | Resource right-sizing | Instance types, storage sizes, and capacity appropriate for stated workload — not over-provisioned "just in case" | Important |
| CF4 | Data transfer costs | Cross-AZ, cross-region, NAT gateway egress costs considered — especially for high-throughput services | Warning |
| CF5 | Storage lifecycle | Retention policies defined, tiering strategy (hot/warm/cold), cleanup automation for temporary data | Warning |
| CF6 | Compute efficiency | Graviton/ARM instances considered, Spot for fault-tolerant workloads, auto-scaling with appropriate min/max | Warning |
| CF7 | Cost monitoring plan | Budget alerts, cost dashboards, anomaly detection — how will unexpected spend be caught | Important |
| CF8 | Reserved capacity | Commitment strategy for stable workloads (Reserved Instances, Savings Plans), or explicit decision to stay on-demand | Warning |
| CF9 | Cost traps flagged | Common expensive mistakes identified: NAT gateways in dev, infinite log retention, oversized CIDR allocations, idle resources | Critical |
| CF10 | Optimization opportunities | Quick wins identified with estimated savings — low-effort changes that reduce cost | Warning |
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.
- 7d ago First seen · 70 lines · 49 tokens per session scan A cfea1b1c85c9
cost-finops-reviewer is an agent published in the GitHub repository infraspecdev/tesseract (5 stars, last pushed 2mo ago), licensed MIT. It adds 49 tokens to every session and 786 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 2026-08-31.
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