contextmax: Instructions file for Claude Code

CLAUDE.md

contextmax CLAUDE.md is an instructions file for Claude Code from galliani/contextmax. It costs 1,602 tokens per session, scanned A, original, MPL-2.0.

A repository guide for ContextMax, a privacy-focused browser app that helps developers assemble reusable information for large language models, or LLMs. It explains the Nuxt.js project and its client-side storage and performance approach.

In plain words
What is it for?
Use it when developing, testing, or building ContextMax and its browser-based context-management features.
Why use it?
It gives coding agents the project context, privacy rules, development commands, and testing workflow needed to change the app safely.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is galliani/contextmax's own configuration. It tells Claude Code how to work on contextmax 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 contextmax configures →

Reuse

Borrowing it

Nothing to install: this file belongs to galliani/contextmax. 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/galliani/contextmax/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/galliani/contextmax

Made for: Claude Code.

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Per session 1,602 This file is loaded in full into every session.
When invoked 1,602 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 $0.01602 $0.01602
Opus 5.5 $0.00641 $0.00641
Sonnet 5.5 $0.00320 $0.00320
Haiku 4.5 $0.00160 $0.00160

Measured 1mo ago against content hash bc17de1185e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

contextmax 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 1mo 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 · 224 lines

How it starts

The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - AI Assistant Guidelines

This file provides comprehensive guidance to Claude Code (claude.ai/code) when working with the ContextMax codebase. It contains project-specific instructions, architectural details, and development practices that help maintain consistency and quality.

Project Overview

ContextMax is a privacy-first, browser-based web application built with Nuxt.js 3 that helps developers create precise, reusable context sets for Large Language Models (LLMs).

Core Principles

  • Privacy First: All processing happens client-side, no code ever leaves the user's machine
  • Developer Focused: Built by developers for developers working with complex codebases
  • LLM Agnostic: Works with any LLM that accepts context (Claude, GPT, Gemini, etc.)
  • Performance Optimized: Uses WebGPU, IndexedDB caching, and OPFS for speed

Development Commands

# Start development server
npm run dev

# Clean development (removes .nuxt cache)
npm run dev:clean

# Fresh start (clean + reinstall)
npm run dev:fresh

# Build for production
npm run build

# Run tests
npm run test

# Run tests with coverage
npm run test:coverage

# Generate coverage badge
npm run coverage:badge

Important Notes:

  • Development server runs on port 3000
  • Do not run commands to start/restart the server - assume it's already running
  • Always run tests before committing changes
  • Maintain 91%+ code coverage

AI Assistant Guidelines

Context Sets Tool Selection

When a user references @context:Name, resolve it via context-sets.json → sets["context:Name"].

Processing Order
  1. Check workflows first
  • If workflows exist: Start from workflow.start.function and trace to end
  • If workflows empty: Read all files in the context, prioritizing those with functionRefs
  1. File Resolution
  • String → filesIndex[fileId].path → read entire file
  • Object → filesIndex[fileId].path → locate specific functionRefs
  1. Impact Analysis
  • Direct: Check context's uses array
  • Indirect: Check filesIndex[fileId].contexts for shared files
  • When modifying file_X in ContextA, also consider ContextB if both use file_X

Read the full file on GitHub · 224 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. 1mo ago First seen · 224 lines · 1,602 tokens per session scan A bc17de1185e7

Subscribe to this mod's changes

contextmax CLAUDE.md is an instructions file published in the GitHub repository galliani/contextmax (11 stars, last pushed 1y ago), licensed MPL-2.0. It adds 1,602 tokens to every session, about $0.0064 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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