A skill that estimates monthly cloud costs from infrastructure and application configuration files. Cloud costs can include computing, databases, storage, networking, monitoring, and third-party services.

Use it to review cloud compute, databases, storage, networking, serverless functions, queues, logging, CI/CD, and paid external services.

It turns deployment settings and expected usage into a cost estimate and highlights possible savings.

cost-review — Skill for Claude Code by eugeniosegala

Install

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.

Any agent

npx skills add eugeniosegala/claude-connoisseur --skill cost-review

Clone the repo

git clone --depth 1 https://github.com/eugeniosegala/claude-connoisseur

Made for: Claude Code.

Or install claude-connoisseur, the plugin that ships this one along with the rest of its 13 skills, 2 hooks.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/eugeniosegala/claude-connoisseur/cost-review/github.svg)](https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/cost-review)

Your own site

<a href="https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/cost-review"><img src="https://agentmods.dev/badge/skills/eugeniosegala/claude-connoisseur/cost-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/cost-review"><img src="https://agentmods.dev/badge/skills/eugeniosegala/claude-connoisseur/cost-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,462 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00013	$0.01462
Opus 5	$0.00006	$0.00731
Sonnet 5	$0.00003	$0.00292
Haiku 4.5	$0.00001	$0.00146

Measured 12d ago against content hash 785a451314b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cost-review 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 12d 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.

skills/cost-review/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cost Review

Analyse the project's infrastructure and application configuration to produce a monthly cost estimate with optimisation suggestions.

Files and instructions: $ARGUMENTS

What to review

Compute: VMs, containers, serverless functions, App Service plans, ECS/EKS tasks — instance types, vCPUs, memory, expected runtime hours
Database: RDS, Aurora, DynamoDB, Cloud SQL, Cosmos DB, ElastiCache — instance class, storage, IOPS, read/write capacity, replicas
Storage: S3, GCS, Azure Blob, EBS/EFS — storage class, expected volume, request rates, lifecycle policies
Networking: NAT gateways, load balancers, data transfer (inter-region, internet egress), VPC endpoints, CDN
Serverless: Lambda, Cloud Functions, Azure Functions — memory allocation, expected invocations, duration, provisioned concurrency
Messaging & queues: SQS, SNS, EventBridge, Pub/Sub, Service Bus — message volume, retention, delivery retries
Monitoring & logging: CloudWatch, Datadog, log ingestion/storage, custom metrics, alarms
CI/CD & build: build minutes, artefact storage, container registry
Third-party services: APIs with usage-based pricing, SaaS integrations, DNS, domain registration, SSL certificates
Application-level costs: paid API calls found in code (AI/ML model APIs, payment gateways, geocoding, email/SMS providers like SendGrid, Twilio), HTTP requests to metered endpoints, SDK usage for pay-per-use services, webhook delivery volume
Hidden costs: cross-AZ data transfer, DNS query volume, KMS key operations, Secrets Manager API calls, IP address charges

Where to look

Scan the project for infrastructure files, configuration, and application code. Common sources include:

Terraform: *.tf, *.tfvars — resource definitions, instance types, storage configs
CloudFormation / SAM: template.yaml, template.json
CDK: lib/*.ts, lib/*.py — infrastructure as code
Pulumi: Pulumi.yaml, index.ts, __main__.py
Kubernetes: *.yaml in k8s/, manifests/, charts/ — resource requests/limits, replica counts, PVCs
Docker Compose: docker-compose.yml — service definitions, resource constraints
Serverless Framework: serverless.yml — function configs, memory, timeout
Application config: environment variables, connection strings, queue URLs — hints at services in use
Application code: HTTP client calls, SDK imports (@anthropic-ai/sdk, stripe, twilio, @sendgrid/mail, boto3, etc.), API key references, webhook handlers — indicators of pay-per-use services
Dependency manifests: package.json, requirements.txt, go.mod, Gemfile — paid SDK dependencies hint at service usage
CI/CD pipelines: .github/workflows/, .gitlab-ci.yml, Jenkinsfile — build resources, runner types

Read the full file on GitHub · 110 lines

Changes

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.

12d ago First seen · 110 lines · 13 tokens per session scan A 785a451314b3

Subscribe to this mod's changes

cost-review is a skill published in the GitHub repository eugeniosegala/claude-connoisseur (9 stars, last pushed 4mo ago), licensed MIT. It adds 13 tokens to every session and 1,462 once invoked, about $0.0001 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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