cost

cost is a command for coding agents from aws/agent-toolkit-for-aws. It costs 17 tokens per session (215 once invoked), scanned A, original, Apache-2.0.

A chat-based AWS cost review for local infrastructure-as-code files. Infrastructure as code means configuration files that define cloud resources and services.

In plain words
What is it for?
It helps inspect local cloud configuration and ask an AWS DevOps Agent for cost-saving opportunities, including across multiple accounts when that workflow is configured.
Why use it?
It helps find possible overspending in CDK, CloudFormation, Terraform, or Serverless configurations without manually reviewing every file.

Command

Part of the aws-agents-for-devsecops plugin — 13 skills, 9 commands, 1 MCP server shipped together

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/aws/agent-toolkit-for-aws/cost
Clone the repo
git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws

Or install aws-agents-for-devsecops, the plugin that ships this one along with the rest of its 13 skills, 9 commands, 1 MCP server.

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

README.md
[![agentmods](https://agentmods.dev/badge/commands/aws/agent-toolkit-for-aws/cost.svg)](https://agentmods.dev/commands/aws/agent-toolkit-for-aws/cost)
Your own site
<a href="https://agentmods.dev/commands/aws/agent-toolkit-for-aws/cost"><img src="https://agentmods.dev/badge/commands/aws/agent-toolkit-for-aws/cost.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 215 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 $0.00017 $0.00215
Opus 5 $0.00009 $0.00108
Sonnet 5 $0.00003 $0.00043
Haiku 4.5 $0.00002 $0.00021

Measured 4d ago against content hash 63114de3cb74, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 4d 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/aws-agents-for-devsecops/commands/cost.md · 12 lines

What it actually says

Cost optimization is a chat-first workflow.

  1. Read whatever local IaC files are present — CDK stacks, CloudFormation templates, Terraform modules. Pick files referenced from cdk.json, template.yaml, *.tf, serverless.yml, etc.
  2. If $ARGUMENTS mentions "all spaces" / "across accounts" and the user has SigV4 auth with multiple spaces, follow the coordinating-multi-space-devops-agent skill's parallel-query pattern.
  3. Call aws_devops_agent__chat(message="[Local IaC Context]\n<IaC snippets>\n\nAnalyze cost optimization opportunities. $ARGUMENTS").
  4. Show the response. Ask if the user wants to drill into any specific recommendation, or escalate to a deep investigation for one of them.
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. 4d ago First seen · 12 lines · 17 tokens per session scan A 63114de3cb74

Subscribe to this mod's changes

cost is a command published in the GitHub repository aws/agent-toolkit-for-aws (2,518 stars, last pushed today), licensed Apache-2.0. It adds 17 tokens to every session and 215 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 2026-08-30.