estimate-gcp-cost

estimate-gcp-cost is a command for Claude Code from armanzeroeight/fastagent-plugins. It costs 9 tokens per session (428 once invoked), scanned A, original, MIT.

A command that reviews Google Cloud Platform spending for a project using billing data and Google’s usage recommendations.

In plain words
What is it for?
Use it to review service costs, identify savings opportunities such as discounts and smaller machines, estimate possible savings, and get implementation commands.
Why use it?
It helps find what is driving your cloud bill and where resources may be oversized, unused, or running at a higher cost than necessary.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

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.

agentmods
npx agentmods add commands/armanzeroeight/fastagent-plugins/estimate-gcp-cost
Clone the repo
git clone --depth 1 https://github.com/armanzeroeight/fastagent-plugins

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 estimate-gcp-cost

README.md
[![agentmods](https://agentmods.dev/badge/commands/armanzeroeight/fastagent-plugins/estimate-gcp-cost.svg)](https://agentmods.dev/commands/armanzeroeight/fastagent-plugins/estimate-gcp-cost)
Your own site
<a href="https://agentmods.dev/commands/armanzeroeight/fastagent-plugins/estimate-gcp-cost"><img src="https://agentmods.dev/badge/commands/armanzeroeight/fastagent-plugins/estimate-gcp-cost.svg" alt="Measured on agentmods" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 428 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00009 $0.00428
Opus 5 $0.00005 $0.00214
Sonnet 5 $0.00002 $0.00086
Haiku 4.5 $0.00001 $0.00043

Measured 2d ago against content hash 3959c101947d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

estimate-gcp-cost 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 2d 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.

plugins/gcp-toolkit/commands/estimate-gcp-cost.md · 72 lines

What it actually says

Estimate GCP Cost

Context

  • gcloud version: !gcloud --version 2>&1 | head -1 || echo "gcloud not installed"
  • Current project: !gcloud config get-value project 2>&1 || echo "No project set"
  • Billing account: !gcloud billing accounts list --format="value(name)" 2>&1 | head -1 || echo "No billing account"

Your Task

Analyze GCP costs and provide optimization recommendations for the specified project.

Arguments

  • $1: Project ID (optional, uses current project if not provided)

Steps

  1. Analyze current costs

    • Query billing data from BigQuery export
    • Group by service and resource type
    • Identify top cost drivers
  2. Get recommendations

    • Query Recommender API for rightsizing
    • Identify committed use discount opportunities
    • Find unused resources
  3. Provide optimization suggestions

    • Committed use discounts
    • Preemptible VM candidates
    • Rightsizing recommendations
    • Storage class optimization
    • Unused resource cleanup
  4. Calculate potential savings

    • Estimate savings per recommendation
    • Prioritize by impact
    • Provide implementation commands

Output Format

## GCP Cost Analysis

**Project:** [project-id]
**Period:** Last 30 days
**Total Cost:** $[amount]

### Top Cost Drivers
1. [Service]: $[amount]
2. [Service]: $[amount]

### Optimization Opportunities

**High Priority (Est. Savings: $[amount]/month)**
- [Recommendation with gcloud command]

**Medium Priority (Est. Savings: $[amount]/month)**
- [Recommendation with gcloud command]

### Implementation Steps
1. [Step with command]
2. [Step with command]
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. 2d ago First seen · 72 lines · 9 tokens per session scan A 3959c101947d

Subscribe to this mod's changes

estimate-gcp-cost is a command published in the GitHub repository armanzeroeight/fastagent-plugins (29 stars, last pushed 1mo ago), licensed MIT. It adds 9 tokens to every session and 428 once invoked, about $0.0000 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.