zork

zork is a skill for Claude Code, Codex from jonathanprozzi/claude-utils. It costs 55 tokens per session (539 once invoked), scanned A, original, MIT.

A command-line text adventure for playing Zork I, a classic game in which you explore rooms and solve problems by typing commands.

In plain words
What is it for?
Use it to move around, inspect locations, collect items, check your inventory, start a new game, and optionally sync notes with Obsidian.
Why use it?
It keeps the game state and transcript saved, so you can continue playing and review what happened.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/jonathanprozzi/claude-utils/zork
Any agent
npx skills add jonathanprozzi/claude-utils --skill zork
Clone the repo
git clone --depth 1 https://github.com/jonathanprozzi/claude-utils

Made for: Claude Code, Codex.

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 zork

README.md
[![agentmods](https://agentmods.dev/badge/skills/jonathanprozzi/claude-utils/zork.svg)](https://agentmods.dev/skills/jonathanprozzi/claude-utils/zork)
Your own site
<a href="https://agentmods.dev/skills/jonathanprozzi/claude-utils/zork"><img src="https://agentmods.dev/badge/skills/jonathanprozzi/claude-utils/zork.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 539 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00055 $0.00539
Opus 5 $0.00028 $0.00269
Sonnet 5 $0.00011 $0.00108
Haiku 4.5 $0.00006 $0.00054

Measured 4d ago against content hash 232a9e85e373, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

zork 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 4d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/new.sh, scripts/play.sh, scripts/setup.sh, …), 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.

skills/zork/SKILL.md · 73 lines

What it actually says

Zork Interactive Fiction Skill

Play the classic text adventure Zork I via dfrotz, with persistent save state and optional Obsidian integration for capturing learnings.

Quick Reference

Command What it does
/zork look Look around current room
/zork go north Move north (or any direction)
/zork take lamp Pick up an item
/zork inventory Check what you're carrying
/zork Show current status (look + inventory)
/zork new Start a fresh game
/zork setup Configure Obsidian vault for sync

How to Play

Execute a single command:

bash scripts/play.sh "go north"

Check current status:

bash scripts/status.sh

Start a new game:

bash scripts/new.sh

Configure Obsidian sync:

bash scripts/setup.sh /path/to/your/vault

Game State

  • Save file: state/claude.sav.qzl - automatically saved after each command
  • Transcript: Append-only log of all commands and responses
  • Learnings: Your observations about the game (update with /zork reflect)

Obsidian Integration

If configured, transcript and learnings sync to your Obsidian vault as:

  • Claude Plays Zork Transcript.md
  • Claude Plays Zork Learnings.md

Run bash scripts/setup.sh to see current config or set a vault path.

Tips

  • Classic text adventure verbs: look, examine, take, drop, open, close, go, inventory
  • Directions: north, south, east, west, up, down, ne, nw, se, sw
  • You can abbreviate: n for north, i for inventory, l for look
  • Save happens automatically after each command

Purpose

This skill helps Claude build experiential intuition about text adventures and parser conventions, informing the design of AI companions in Emergent Quest.

Files

What ships with it

7 files 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. 4d ago First seen · 73 lines · 55 tokens per session scan A 232a9e85e373

Subscribe to this mod's changes

zork is a skill published in the GitHub repository jonathanprozzi/claude-utils (11 stars, last pushed 6mo ago), licensed MIT. It adds 55 tokens to every session and 539 once invoked, about $0.0003 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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