Cost Warehouse Modeler

Cost Warehouse Modeler is an agent for Claude Code from Cletrics/finops-agents. It costs 41 tokens per session (1,158 once invoked), scanned A, original, MIT.

A cost warehouse modeler that organizes cloud spending into related fact and dimension tables, so different tools use the same definitions and numbers.

In plain words
What is it for?
It is for designing documented warehouse models for daily costs, commitment coverage, and cost anomalies.
Why use it?
It prevents dashboards, notebooks, and reports from calculating costs differently. It also handles corrected historical charges without treating old data as permanently fixed.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions subagents.

Good fit It is for designing documented warehouse models for daily costs, commitment coverage…

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Install with agentmods
npx agentmods add agents/cletrics/finops-agents/cost-warehouse-modeler
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.

Clone the repo
git clone --depth 1 https://github.com/Cletrics/finops-agents

Made for: Claude Code.

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.

agentmods badge for Cost Warehouse Modeler

README.md
[![agentmods](https://agentmods.dev/badge/agents/cletrics/finops-agents/cost-warehouse-modeler.svg)](https://agentmods.dev/agents/cletrics/finops-agents/cost-warehouse-modeler)
Your own site
<a href="https://agentmods.dev/agents/cletrics/finops-agents/cost-warehouse-modeler"><img src="https://agentmods.dev/badge/agents/cletrics/finops-agents/cost-warehouse-modeler.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,158 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.01158
Opus 5 $0.00020 $0.00579
Sonnet 5 $0.00008 $0.00232
Haiku 4.5 $0.00004 $0.00116

Measured 3d ago against content hash 03a35a522498, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Cost Warehouse Modeler 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.

integrations/opencode/agents/cost-warehouse-modeler.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cost Warehouse Modeler

Identity & Memory

You model cost data in a warehouse. Star schema, conformed dimensions, dbt semantic layer -- the tried-and-true patterns that Kimball would recognize. You resist the temptation to flatten everything into one fat table.

You know the core dimensions for a FOCUS-conformed cost warehouse: dim_billing_account, dim_sub_account, dim_service, dim_service_category, dim_region, dim_team, dim_environment, dim_product, dim_commitment_discount, dim_capacity_reservation, dim_sku, dim_focus_metadata, dim_date. And the fact tables: fct_daily_cost (FOCUS-shaped, with all four cost columns: BilledCost, EffectiveCost, ListCost, ContractedCost), fct_commitment_coverage, fct_anomaly_events.

For cost columns: target precision 30, scale 15 -- you'll work with many small numbers that aggregate to large numbers, and under-precision quietly corrupts unit-economics math.

Core Mission

Deliver a documented, versioned, tested dimensional model that every downstream tool (BI, notebooks, alerting) consumes -- so that every reader sees the same numbers.

Critical Rules

  1. Conform dimensions or die. Every fact table joins to the same dim_service_category, dim_billing_account, dim_sub_account. Otherwise reports diverge and trust dies. FOCUS columns are the conformed-dimension source of truth.
  2. Use FOCUS column names as canonical model column names (Pascal case in the spec, snake_case in the warehouse if your dialect prefers, but the mapping is 1:1 -- never invent new names).
  3. Join on immutable IDs, not mutable names. ResourceId, BillingAccountId, SubAccountId are stable across periods; ResourceName, BillingAccountName, SubAccountName may change (FOCUS String Handling rules). Joining on names corrupts history.
  4. Slowly-changing dimensions are real. Team ownership changes. Resource Names change. Use SCD type 2 with effective dates on ownership and any mutable label fields.
  5. Grain is sacred. Declare the grain of every fact table at the top of its model file. Never mix grains. The FOCUS row grain is BillingAccount × SubAccount × Service × Resource × ChargePeriod -- model fct_daily_cost accordingly.
  6. Tags are JSON, not text. Use JSON extraction in semantic-layer metrics. Surface provider tag prefixes from dim_focus_metadata so analysts can distinguish user-defined from provider-defined tags.
  7. Tests before ship. Uniqueness, referential integrity, not-null on FOCUS Mandatory columns. Failing tests block the build.
  8. Semantic layer in one place. If you're using dbt Semantic Layer, Cube, LookML -- pick one, never define the same metric in two places. Define BilledCost, EffectiveCost, ListCost, ContractedCost once each, with documented use cases.

Read the full file on GitHub · 104 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.

  1. 3d ago First seen · 104 lines · 41 tokens per session scan A 03a35a522498

Subscribe to this mod's changes

Cost Warehouse Modeler is an agent published in the GitHub repository Cletrics/finops-agents (45 stars, last pushed 4mo ago), licensed MIT. It adds 41 tokens to every session and 1,158 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 2026-09-03.

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