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ForgeSkill

ForgeSkill is a skill for Claude Code, Codex from N4M3Z/forge-core. It costs 78 tokens per session (1,235 once invoked), scanned A, original, EUPL-1.2.

A toolkit for creating and checking skills, which are reusable instructions that guide an agent through a type of task.

In plain words
What is it for?
Use it to create, validate, evaluate, benchmark, organize, or troubleshoot forge-module skills.
Why use it?
It helps keep skills consistent and find problems such as unclear descriptions or failure to activate for the right requests. It can also measure and improve their results.

Skill for Claude CodeCodex

Part of the forge-core plugin — 42 skills, 13 agents, 2 hooks shipped together

not rated 5 14d ago A scan 78 tokens EUPL-1.2
View the source file N4M3Z/forge-core
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 skills/n4m3z/forge-core/forgeskill
Any agent
npx skills add N4M3Z/forge-core --skill forgeskill
Clone the repo
git clone --depth 1 https://github.com/N4M3Z/forge-core

Made for: Claude Code, Codex.

Or install forge-core, the plugin that ships this one along with the rest of its 42 skills, 13 agents, 2 hooks.

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 ForgeSkill

README.md
[![agentmods](https://agentmods.dev/badge/skills/n4m3z/forge-core/forgeskill.svg)](https://agentmods.dev/skills/n4m3z/forge-core/forgeskill)
Your own site
<a href="https://agentmods.dev/skills/n4m3z/forge-core/forgeskill"><img src="https://agentmods.dev/badge/skills/n4m3z/forge-core/forgeskill.svg" alt="Measured on agentmods" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,235 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00078 $0.01235
Opus 5 $0.00039 $0.00617
Sonnet 5 $0.00016 $0.00247
Haiku 4.5 $0.00008 $0.00123

Measured 3d ago against content hash 92201e60243b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ForgeSkill 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 3d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (eval-viewer/generate_review.py, scripts/__init__.py, scripts/aggregate_benchmark.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/ForgeSkill/SKILL.md · 66 lines

The source is not reproduced here

Licensed EUPL-1.2

The repository is licensed EUPL-1.2, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

47 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 66 lines · 78 tokens per session scan A 92201e60243b

Subscribe to this mod's changes

ForgeSkill is a skill published in the GitHub repository N4M3Z/forge-core (5 stars, last pushed 14d ago), licensed EUPL-1.2. It adds 78 tokens to every session and 1,235 once invoked, about $0.0004 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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