cdn-inv

cdn-inv is a skill for Claude Code from barnburner121/claude-plugin-marketplace. It costs 10 tokens per session (124 once invoked), scanned A, original, no licence file.

A guide for planning how a content delivery network (CDN) should remove cached copies of files when they change.

In plain words
What is it for?
Use it to create cache-clearing plans for websites and other content served through a CDN.
Why use it?
It helps prevent users from receiving outdated website assets after an update.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the cdn-invalidation plugin — 1 skill shipped together

Good fit Use it to create cache-clearing plans for websites and other content served through a CDN.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/barnburner121/claude-plugin-marketplace/cdn-inv
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 barnburner121/claude-plugin-marketplace --skill cdn-inv
Clone the repo
git clone --depth 1 https://github.com/barnburner121/claude-plugin-marketplace

Made for: Claude Code.

Or install cdn-invalidation, the plugin that ships this one along with the rest of its 1 skill.

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 cdn-inv

README.md
[![agentmods](https://agentmods.dev/badge/skills/barnburner121/claude-plugin-marketplace/cdn-inv/github.svg)](https://agentmods.dev/skills/barnburner121/claude-plugin-marketplace/cdn-inv)
Your own site
<a href="https://agentmods.dev/skills/barnburner121/claude-plugin-marketplace/cdn-inv"><img src="https://agentmods.dev/badge/skills/barnburner121/claude-plugin-marketplace/cdn-inv/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 cdn-inv

Your own site · 80×15
<a href="https://agentmods.dev/skills/barnburner121/claude-plugin-marketplace/cdn-inv"><img src="https://agentmods.dev/badge/skills/barnburner121/claude-plugin-marketplace/cdn-inv.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 10 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 124 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 unknown 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 $0.00010 $0.00124
Opus 5.5 $0.00004 $0.00050
Sonnet 5.5 $0.00002 $0.00025
Haiku 4.5 $0.00001 $0.00012

Measured 1mo ago against content hash df69ec0c8940, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cdn-inv 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 1mo 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.

generated-plugins/cdn-invalidation/skills/cdn-inv/SKILL.md · 21 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 1mo ago First seen · 21 lines · 10 tokens per session scan A df69ec0c8940

Subscribe to this mod's changes

cdn-inv is a skill published in the GitHub repository barnburner121/claude-plugin-marketplace (3 stars, last pushed 7mo ago), with no licence file. It adds 10 tokens to every session and 124 once invoked, about $0.0000 per session on Opus 5.5. 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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