business-rule-extraction

business-rule-extraction is a skill for Claude Code from pan94u/forge. It costs 41 tokens per session (1,637 once invoked), scanned A, original, no licence file.

A code-analysis guide that finds business rules, boundary conditions, and exception-handling approaches in source code. It turns them into structured documentation that can be checked by people.

In plain words
What is it for?
Use it to document how a system behaves, plan a migration, identify edge cases, or explain an unfamiliar codebase to a team.
Why use it?
It helps preserve knowledge hidden in code and makes existing behavior easier to understand before a migration or when onboarding a team member.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the forge-foundation plugin — 16 skills, 6 commands, 4 agents, 2 MCP servers shipped together

Good fit Use it to document how a system behaves, plan a migration, identify edge cases, or explain an unfamiliar codebase to a team.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pan94u/forge/business-rule-extraction
View source ↗ pan94u/forge
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 pan94u/forge --skill business-rule-extraction
Clone the repo
git clone --depth 1 https://github.com/pan94u/forge

Made for: Claude Code.

Or install forge-foundation, the plugin that ships this one along with the rest of its 16 skills, 6 commands, 4 agents, 2 MCP servers.

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 business-rule-extraction

README.md
[![agentmods](https://agentmods.dev/badge/skills/pan94u/forge/business-rule-extraction/github.svg)](https://agentmods.dev/skills/pan94u/forge/business-rule-extraction)
Your own site
<a href="https://agentmods.dev/skills/pan94u/forge/business-rule-extraction"><img src="https://agentmods.dev/badge/skills/pan94u/forge/business-rule-extraction/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 business-rule-extraction

Your own site · 80×15
<a href="https://agentmods.dev/skills/pan94u/forge/business-rule-extraction"><img src="https://agentmods.dev/badge/skills/pan94u/forge/business-rule-extraction.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,637 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 $0.00041 $0.01637
Opus 5 $0.00020 $0.00818
Sonnet 5 $0.00008 $0.00327
Haiku 4.5 $0.00004 $0.00164

Measured 9d ago against content hash 09771e406bf9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

business-rule-extraction 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/extract_rules.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.

plugins/forge-foundation/skills/business-rule-extraction/SKILL.md · 205 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

1 file 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. 9d ago First seen · 205 lines · 41 tokens per session scan A 09771e406bf9

Subscribe to this mod's changes

business-rule-extraction is a skill published in the GitHub repository pan94u/forge (40 stars, last pushed 7d ago), with no licence file. It adds 41 tokens to every session and 1,637 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 2026-08-30.

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