icn: Skill for Claude Code

.agents/skills/diag-infra/SKILL.md

diag-infra is a skill for Claude Code from InterCooperative-Network/icn. It costs 22 tokens per session (347 once invoked), scanned A, original, AGPL-3.0.

A method for diagnosing infrastructure problems by comparing what works with what fails, collecting evidence, ranking possible causes, and suggesting the least expensive test.

In plain words
What is it for?
Use it to investigate failures in servers, deployments, networks, or other infrastructure systems.
Why use it?
It reduces guesswork and helps narrow down the cause before making changes.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is InterCooperative-Network/icn's own configuration. It tells Claude Code how to work on icn itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything icn configures →

Reuse

Borrowing it

Nothing to install: this file belongs to InterCooperative-Network/icn. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/InterCooperative-Network/icn/main/.agents/skills/diag-infra/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/InterCooperative-Network/icn

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 diag-infra

README.md
[![agentmods](https://agentmods.dev/badge/skills/intercooperative-network/icn/diag-infra/github.svg)](https://agentmods.dev/skills/intercooperative-network/icn/diag-infra)
Your own site
<a href="https://agentmods.dev/skills/intercooperative-network/icn/diag-infra"><img src="https://agentmods.dev/badge/skills/intercooperative-network/icn/diag-infra/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 diag-infra

Your own site · 80×15
<a href="https://agentmods.dev/skills/intercooperative-network/icn/diag-infra"><img src="https://agentmods.dev/badge/skills/intercooperative-network/icn/diag-infra.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 347 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 $0.00022 $0.00347
Opus 5.5 $0.00009 $0.00139
Sonnet 5.5 $0.00004 $0.00069
Haiku 4.5 $0.00002 $0.00035

Measured 2mo ago against content hash d0154d490466, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

diag-infra 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 2mo 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.

.agents/skills/diag-infra/SKILL.md · 38 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 2mo ago First seen · 38 lines · 22 tokens per session scan A d0154d490466

Subscribe to this mod's changes

diag-infra is a skill published in the GitHub repository InterCooperative-Network/icn (10 stars, last pushed yesterday), licensed AGPL-3.0. It adds 22 tokens to every session and 347 once invoked, about $0.0001 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 2026-08-31.

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