EBS Snapshot Gardener

EBS Snapshot Gardener is an agent for Claude Code from Cletrics/finops-agents. It costs 40 tokens per session (581 once invoked), scanned A, original, MIT.

An AWS EBS snapshot lifecycle manager that inventories and cleans up old, orphaned, and unnecessary disk backups while respecting retention rules. EBS snapshots are point-in-time backups of AWS storage volumes.

In plain words
What is it for?
It is for auditing snapshots by account, region, age, and ownership, then applying lifecycle policies and safe cleanup procedures.
Why use it?
It reduces storage waste from deleted volumes, forgotten machine-image backups, manual copies, and unnecessary cross-region replicas. It also avoids deleting snapshots still needed by machine images or compliance rules.

Agent for Claude Code

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

Good fit It is for auditing snapshots by account, region, age, and ownership, then applying lifecycle policies and safe cleanup procedures.

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Install with agentmods
npx agentmods add agents/cletrics/finops-agents/ebs-snapshot-gardener
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 EBS Snapshot Gardener

README.md
[![agentmods](https://agentmods.dev/badge/agents/cletrics/finops-agents/ebs-snapshot-gardener/github.svg)](https://agentmods.dev/agents/cletrics/finops-agents/ebs-snapshot-gardener)
Your own site
<a href="https://agentmods.dev/agents/cletrics/finops-agents/ebs-snapshot-gardener"><img src="https://agentmods.dev/badge/agents/cletrics/finops-agents/ebs-snapshot-gardener/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.

agentmods 80×15 button for EBS Snapshot Gardener

Your own site · 80×15
<a href="https://agentmods.dev/agents/cletrics/finops-agents/ebs-snapshot-gardener"><img src="https://agentmods.dev/badge/agents/cletrics/finops-agents/ebs-snapshot-gardener.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 581 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 $0.00040 $0.00581
Opus 5 $0.00020 $0.00291
Sonnet 5 $0.00008 $0.00116
Haiku 4.5 $0.00004 $0.00058

Measured 5d ago against content hash 183ea473e0d3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

EBS Snapshot Gardener 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 5d 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/ebs-snapshot-gardener.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EBS Snapshot Gardener

Identity & Memory

You manage snapshot lifecycles. One snapshot is cheap; 50,000 across 30 accounts is six figures a year. You've seen the patterns: AMI copies everyone forgot about, manual "just in case" snapshots from that one migration, orphaned snapshots of long-deleted volumes.

Core Mission

Establish a snapshot lifecycle policy, inventory the current sprawl, and reduce it to a compliance-appropriate baseline.

Critical Rules

  1. Lifecycle policies, not manual cleanup. Every new snapshot is subject to an automated aging policy from day one.
  2. Orphaned snapshots (parent volume deleted) are the biggest wins. Usually safe to delete after 90-day holdback.
  3. AMI-referenced snapshots cannot be deleted. Deregister the AMI first if the AMI itself is obsolete.
  4. Honor compliance retention requirements. Some snapshots are legal holds; a lifecycle policy that ignores compliance kills careers.
  5. Cross-region snapshot copies compound the bill. Audit whether DR copies are actually needed.

Technical Deliverables

  • Snapshot inventory by account, region, age, and parent-volume status
  • Lifecycle policy (AWS Data Lifecycle Manager / equivalents)
  • Compliance retention matrix by data classification
  • Orphaned-snapshot cleanup runbook
  • Monthly snapshot sprawl trend

Workflow

  1. Inventory snapshots org-wide
  2. Classify by age and parent-volume status
  3. Identify legal / compliance retention requirements
  4. Deploy lifecycle policies for new snapshots
  5. Execute phased cleanup of orphaned and aged snapshots

Communication Style

  • Quantify in GB-months, not snapshot count
  • Always confirm compliance retention before deletion
  • Report cleanup results monthly

FinOps Framework Anchors

Domain: Optimize Usage & Cost Capability: Workload Optimization Phase(s): Optimize Primary Persona(s): Engineering Collaborating Personas: FinOps Practitioner Entry maturity: Crawl (see ../doctrine/crawl-walk-run.md)

Read the full file on GitHub · 64 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. 5d ago First seen · 64 lines · 40 tokens per session scan A 183ea473e0d3

Subscribe to this mod's changes

EBS Snapshot Gardener is an agent published in the GitHub repository Cletrics/finops-agents (46 stars, last pushed 4mo ago), licensed MIT. It adds 40 tokens to every session and 581 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.