ai-context: Instructions file for Claude Code

CLAUDE.md

ai-context CLAUDE.md is an instructions file for Claude Code from el-feo/ai-context. It costs 782 tokens per session, scanned A, original, MIT.

Project instructions for AI Context, a collection of Claude Code add-ons that provide shared guidance for Ruby, JavaScript, DevOps, project management, and software design work.

In plain words
What is it for?
Use them when working on the repository’s plugins, manifests, skills, commands, agents, workflow templates, or helper tools.
Why use it?
They help an agent understand how the repository is organized and how each add-on is structured, making changes less likely to break the project’s conventions.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions .claude-plugin; mentions CLAUDE.md; mentions Claude Code.

This is el-feo/ai-context's own configuration. It tells Claude Code how to work on ai-context 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-context configures →

Reuse

Borrowing it

Nothing to install: this file belongs to el-feo/ai-context. 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/el-feo/ai-context/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/el-feo/ai-context

Made for: Claude Code.

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Per session 782 This file is loaded in full into every session.
When invoked 782 The same file — it is already loaded in full.
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 $0.00782 $0.00782
Opus 5.5 $0.00313 $0.00313
Sonnet 5.5 $0.00156 $0.00156
Haiku 4.5 $0.00078 $0.00078

Measured 2mo ago against content hash dd91a9488079, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ai-context CLAUDE.md 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.

CLAUDE.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code when working with code in this repository.

Repository Purpose

AI Context is a collection of Claude Code plugins designed to enhance developer productivity when working with LLMs. The plugins can be installed into other projects to provide standardized AI interaction patterns.

Repository Structure

ai-context/
├── plugins/
│   ├── ruby-rails/      # Ruby/Rails development (13 skills, 3 commands, 1 agent)
│   ├── ghpm/            # GitHub Project Management (10 commands, 1 agent)
│   ├── js-ts/           # JavaScript/TypeScript (3 skills, 1 command)
│   ├── devops/          # DevOps & infrastructure (3 skills, 1 command)
│   ├── general/         # General utilities (1 skill)
│   ├── sandi/           # Sandi Metz OO design advisor (1 skill, 2 commands, 1 workflow template)
│   └── fowler/          # Martin Fowler refactoring advisor (1 skill, 2 commands, 1 workflow template)
└── tools/               # Helper scripts

Plugin Structure

Each plugin follows this structure:

plugins/<name>/
├── README.md
├── .claude-plugin/
│   └── plugin.json      # Plugin manifest
├── skills/              # SKILL.md files with references/
├── commands/            # Slash command definitions
├── agents/              # Agent configurations
└── templates/           # Installable file templates (e.g. GitHub workflows)

Key Plugins

ruby-rails

Ruby on Rails development toolkit with skills for Rails, Ruby, RSpec, code quality tools, and Sandi Metz principles.

ghpm

GitHub Project Management workflow:

  1. /ghpm:create-prd - Create product requirements document
  2. /ghpm:create-epics - Break PRD into epics
  3. /ghpm:create-tasks - Break epics into tasks
  4. /ghpm:tdd-task - Execute task using TDD

js-ts

JavaScript/TypeScript toolkit with ESLint, Vitest, and unit testing skills.

devops

DevOps toolkit with GitHub Actions, Kamal deployment, and Tailscale skills.

sandi

Object-oriented design advisor channeling Sandi Metz's philosophy (POODR, 99 Bottles of OOP). The /sandi command auto-detects whether you want planning, code review, refactoring, or design advice. Language-agnostic. /sandi:install-review installs a GitHub Actions workflow (from templates/sandi-review.yml) that runs a Sandi review on every PR via claude-code-action.

Read the full file on GitHub · 85 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. 2mo ago First seen · 85 lines · 782 tokens per session scan A dd91a9488079

Subscribe to this mod's changes

ai-context CLAUDE.md is an instructions file published in the GitHub repository el-feo/ai-context (12 stars, last pushed 3mo ago), licensed MIT. It adds 782 tokens to every session, about $0.0031 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 2026-08-30.

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