ai-asset-pricing: Skill for Claude Code

.claude/skills/rule-create/SKILL.md

rule-create is a skill for Claude Code from Alexander-M-Dickerson/ai-asset-pricing. It costs 25 tokens per session (2,496 once invoked), scanned A, original, MIT.

A tool for creating and reviewing project rule files. These rules tell the coding agent how to handle a particular topic, such as database code, testing, or writing style.

In plain words
What is it for?
Use it to create a new rule for a topic or audit one rule, a selected group of rules, or all rules in the project's .claude/rules folder.
Why use it?
It helps keep project instructions consistent, focused, and useful, while reducing duplicate or ineffective rules.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions CLAUDE.md; names the AskUserQuestion tool.

This is Alexander-M-Dickerson/ai-asset-pricing's own configuration. It tells Claude Code how to work on ai-asset-pricing 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 ai-asset-pricing configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Alexander-M-Dickerson/ai-asset-pricing. 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/Alexander-M-Dickerson/ai-asset-pricing/main/.claude/skills/rule-create/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Alexander-M-Dickerson/ai-asset-pricing

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 rule-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/alexander-m-dickerson/ai-asset-pricing/rule-create/github.svg)](https://agentmods.dev/skills/alexander-m-dickerson/ai-asset-pricing/rule-create)
Your own site
<a href="https://agentmods.dev/skills/alexander-m-dickerson/ai-asset-pricing/rule-create"><img src="https://agentmods.dev/badge/skills/alexander-m-dickerson/ai-asset-pricing/rule-create/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 rule-create

Your own site · 80×15
<a href="https://agentmods.dev/skills/alexander-m-dickerson/ai-asset-pricing/rule-create"><img src="https://agentmods.dev/badge/skills/alexander-m-dickerson/ai-asset-pricing/rule-create.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,496 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 original 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 $0.00025 $0.02496
Opus 5 $0.00013 $0.01248
Sonnet 5 $0.00005 $0.00499
Haiku 4.5 $0.00003 $0.00250

Measured 11d ago against content hash b02fec8bd298, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

rule-create 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 11d 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.

.claude/skills/rule-create/SKILL.md · 255 lines

How it starts

The opening of the file, as written. The whole thing — 255 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Rule Creator & Auditor

Two modes: Create a new rule or Audit an existing one.

Examples

  • /rule-create -- create a new rule (interactive)
  • /rule-create database patterns for PostgreSQL -- create with topic description
  • /rule-create audit .claude/rules/validation.md -- audit a specific rule
  • /rule-create audit all -- audit all rules with summary table

Mode Selection

Parse $ARGUMENTS:

  • Empty, new, or a topic description → Create mode
  • audit, audit <path>, or audit allAudit mode

CREATE MODE

Four phases: Gather → Draft → Write → Verify.

Phase 1: Gather Context

1a. Scan existing rules

List all files in .claude/rules/ to understand what rules already exist. This prevents creating duplicates and helps identify the right scope.

1b. Ask the user

If $ARGUMENTS contains a topic description (anything beyond new), use it as the domain. Otherwise, use AskUserQuestion with all of the following:

  1. Domain: What does this rule cover? (e.g., database patterns, security, API conventions, testing, writing style, deployment)
  2. Scope: What file types or paths should trigger this rule? Give glob patterns (e.g., **/*.py, src/api/**/*.ts) or say "always load" if it applies everywhere.
  3. Key constraints: What are the 3-5 most important things Claude must know or do when this rule applies? Be specific — concrete patterns, not abstract goals.
  4. Bad patterns: Are there specific anti-patterns or mistakes Claude should avoid? (optional but valuable)

1c. Check for overlap

Compare the user's answers against existing rules. If there's significant overlap with an existing rule, warn the user and ask whether to:

  • Extend the existing rule instead
  • Create a new focused rule covering only the non-overlapping parts
  • Proceed anyway (user's call)

Phase 2: Draft

2a. Choose a template

Based on the domain, select the best body pattern from the reference:

Domain Type Template Pattern Best For
Code conventions Quick Reference + Sections Naming, formatting, architecture patterns
Security / correctness Do / Don't / Why / Refs Vulnerability prevention, data integrity
Writing / style Banned/Required + Examples Prose style, documentation standards
Data / schema Schema + Query + Gotchas Database conventions, data pipelines

Read the full file on GitHub · 255 lines

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. 11d ago First seen · 255 lines · 25 tokens per session scan A b02fec8bd298

Subscribe to this mod's changes

rule-create is a skill published in the GitHub repository Alexander-M-Dickerson/ai-asset-pricing (59 stars, last pushed 4mo ago), licensed MIT. It adds 25 tokens to every session and 2,496 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 2026-08-30.

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