icn: Skill for Claude Code

.agents/skills/icn-preflight/SKILL.md

icn-preflight is a skill for Claude Code from InterCooperative-Network/icn. It costs 28 tokens per session (893 once invoked), scanned A, original, AGPL-3.0.

A preparation check for an ICN session. It verifies the correct code checkout, the sources responsible for authoritative information, the current execution state, and the checks needed for the task.

In plain words
What is it for?
Use it before an ICN task to confirm the working directory, trusted data sources, live state, and task-specific verification steps.
Why use it?
It reduces the risk of working in the wrong copy of a project or relying on stale or incorrect information.

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 →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 scripts/generate-agent-context-spine.py --brief <paths>.

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/icn-preflight/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 icn-preflight

README.md
[![agentmods](https://agentmods.dev/badge/skills/intercooperative-network/icn/icn-preflight.svg)](https://agentmods.dev/skills/intercooperative-network/icn/icn-preflight)
Your own site
<a href="https://agentmods.dev/skills/intercooperative-network/icn/icn-preflight"><img src="https://agentmods.dev/badge/skills/intercooperative-network/icn/icn-preflight.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 893 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 $0.00028 $0.00893
Opus 5 $0.00014 $0.00447
Sonnet 5 $0.00006 $0.00179
Haiku 4.5 $0.00003 $0.00089

Measured 7d ago against content hash 8b9eed4a711e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

icn-preflight 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 7d 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/icn-preflight/SKILL.md · 118 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. 7d ago First seen · 118 lines · 28 tokens per session scan A 8b9eed4a711e

Subscribe to this mod's changes

icn-preflight is a skill published in the GitHub repository InterCooperative-Network/icn (10 stars, last pushed today), licensed AGPL-3.0. It adds 28 tokens to every session and 893 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 2026-08-31.

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