tokengolf: Instructions file for Claude Code

CLAUDE.md

tokengolf CLAUDE.md is an instructions file for Claude Code from josheche/tokengolf. It costs 2,223 tokens per session, scanned B, original, MIT.

A set of instructions for TokenGolf, a command-line game that scores Claude Code sessions by how efficiently they use tokens and money. Each session is treated like a roguelike game run with a changing score target.

In plain words
What is it for?
It helps developers track session efficiency, view scores, manage saved game data, and run TokenGolf's build, test, lint, and formatting commands.
Why use it?
It explains how to install and use the game, and how its score and failure rules work.

Instructions file for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

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

Runs only inside a plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else, and the catalogue could not identify which plugin ships it.

Reuse

Borrowing it

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

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 tokengolf CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/josheche/tokengolf/claude-md/github.svg)](https://agentmods.dev/instructions/josheche/tokengolf/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/josheche/tokengolf/claude-md"><img src="https://agentmods.dev/badge/instructions/josheche/tokengolf/claude-md/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 tokengolf CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/josheche/tokengolf/claude-md"><img src="https://agentmods.dev/badge/instructions/josheche/tokengolf/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,223 This file is loaded in full into every session.
When invoked 2,223 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.02223 $0.02223
Opus 5.5 $0.00889 $0.00889
Sonnet 5.5 $0.00445 $0.00445
Haiku 4.5 $0.00222 $0.00222

Measured 1mo ago against content hash 7a8dafbc82fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

tokengolf CLAUDE.md scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

| `tokengolf install` | Patch `~/.claude/settings.json` with hooks |
CLAUDE.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

TokenGolf — CLAUDE.md

A CLI game that gamifies Claude Code sessions by turning token/dollar efficiency into a score. Node.js, ESM, Ink v5 TUI, Commander.js, JSON persistence in ~/.tokengolf/.


One Mode — Every Session Is a Roguelike Run

Every Claude Code session is automatically tracked. No wizard, no upfront budget commitment. The budget (par) scales dynamically with session activity.

Par budget = max(rate × sqrt(prompts), model_floor). Par grows sublinearly — early prompts have headroom, pressure mounts over time. Efficient prompts beat par; wasteful prompts fall behind. BUST (>100% of par) = status: 'died', red accent, death achievements.


Installation

Plugin (recommended) — auto-updates:

claude plugin marketplace add josheche/tokengolf
claude plugin install tokengolf@tokengolf

npm (alternative) — requires manual hook setup:

npm install -g tokengolf && tokengolf install

npm users get auto-sync: hooks update automatically on version change via session-start.js.

Commands

npm run build after source changes. npm test after score.js changes. npm run lint / npm run format for code quality. Husky pre-commit hook runs automatically.

Do not test with node src/cli.js — use node dist/cli.js or tokengolf after npm link.

Command Description
tokengolf scorecard Show last run's score card
tokengolf stats Career stats dashboard
tokengolf demo [component] Show UI demos (all, hud, scorecard, stats)
tokengolf config List all config values
tokengolf config emotions [mode] Get/set emotion mode (off, emoji, ascii)
tokengolf config par [model] [rate] View/set par rates per model, or reset
tokengolf config floor [model] [value] View/set par floors per model, or reset
tokengolf install Patch ~/.claude/settings.json with hooks

Par Budget System

Par = the expected cost for a session, scaled sublinearly by prompts and model.

Read the full file on GitHub · 156 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 · 156 lines · 2,223 tokens per session scan B 7a8dafbc82fd

Subscribe to this mod's changes

tokengolf CLAUDE.md is an instructions file published in the GitHub repository josheche/tokengolf (2 stars, last pushed 7mo ago), licensed MIT. It adds 2,223 tokens to every session, about $0.0089 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,581 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 4,261 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,731 tokens