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

Use it to move around, inspect locations, collect items, check your inventory, start a new game, and optionally sync notes with Obsidian.

It keeps the game state and transcript saved, so you can continue playing and review what happened.

zork — Skill for Claude Code by jonathanprozzi/claude-utils

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.

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.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jonathanprozzi/claude-utils/zork/github.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/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jonathanprozzi/claude-utils/zork"><img src="https://agentmods.dev/badge/skills/jonathanprozzi/claude-utils/zork.svg" alt="Reviewed on agentmods" width="80" 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. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00055	$0.00539
Opus 5.5	$0.00022	$0.00216
Sonnet 5.5	$0.00011	$0.00108
Haiku 4.5	$0.00006	$0.00054

Measured 2mo ago against content hash 232a9e85e373, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 2mo 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.

2mo 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 8mo ago), licensed MIT. It adds 55 tokens to every session and 539 once invoked, about $0.0002 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.

Game development

zork next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
zorkjonathanprozzi/claude-utils	Skill	11	8mo ago	MIT	A	55	Claude Code
playtest-reportDonchitos/Claude-Code-Game-Studios	Skill	36k	19d ago	MIT	A	20	Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills	Skill	6.9k	10d ago	Apache-2.0	A	95	Claude Code
scenario-unreal-gameplayscenario-labs/skills	Skill	3.2k	yesterday	MIT	A	121	Claude Code
motionOpenDCAI/GameFactory-3A	Skill	1.0k	8d ago	Apache-2.0	A	0	Claude Code, Codex
unity-addressablesBesty0728/Unity-Skills	Skill	1.9k	yesterday	MIT	A	25	Claude Code, Codex
unity-manual-componentBesty0728/Unity-Skills	Skill	1.9k	yesterday	MIT	A	36	Claude Code, Codex