world-of-claudecraft: Skill for Claude Code

.claude/skills/pr-screenshots/SKILL.md

pr-screenshots is a skill for Claude Code from levy-street/world-of-claudecraft. It costs 99 tokens per session (1,033 once invoked), scanned A, original, MIT.

A procedure for taking before-and-after screenshots of changes in World of ClaudeCraft, a software project, on desktop and mobile screens.

In plain words
What is it for?
Use it to capture screenshots of changed windows, the general interface, or mobile and desktop layouts, then save and link them in a pull request.
Why use it?
It provides visual evidence that interface or rendering changes look correct and meets the project's screenshot requirement for visual pull requests.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions CLAUDE.md.

This is levy-street/world-of-claudecraft's own configuration. It tells Claude Code how to work on world-of-claudecraft 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 world-of-claudecraft configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node scripts/pr_screenshots.mjs.

About the project

World of ClaudeCraft is a browser-based classic-style multiplayer online game with a persistent shared world that can also run locally or be controlled through a Python reinforcement-learning interface. Players can quest and raid in the online world, while developers can host it themselves and train AI agents to play. The catalogue skills, agents, instructions, hooks, and setting support workflows for interacting with and developing the game.

levy-street/world-of-claudecraft · 2,251 stars · on GitHub · worldofclaudecraft.com

Reuse

Borrowing it

Nothing to install: this file belongs to levy-street/world-of-claudecraft. 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/levy-street/world-of-claudecraft/main/.claude/skills/pr-screenshots/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/levy-street/world-of-claudecraft

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 pr-screenshots

README.md
[![agentmods](https://agentmods.dev/badge/skills/levy-street/world-of-claudecraft/pr-screenshots/github.svg)](https://agentmods.dev/skills/levy-street/world-of-claudecraft/pr-screenshots)
Your own site
<a href="https://agentmods.dev/skills/levy-street/world-of-claudecraft/pr-screenshots"><img src="https://agentmods.dev/badge/skills/levy-street/world-of-claudecraft/pr-screenshots/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 pr-screenshots

Your own site · 80×15
<a href="https://agentmods.dev/skills/levy-street/world-of-claudecraft/pr-screenshots"><img src="https://agentmods.dev/badge/skills/levy-street/world-of-claudecraft/pr-screenshots.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,033 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00099 $0.01033
Opus 5 $0.00049 $0.00517
Sonnet 5 $0.00020 $0.00207
Haiku 4.5 $0.00010 $0.00103

Measured 12d ago against content hash 6850e6dd96a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

pr-screenshots 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 12d 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/skills/pr-screenshots/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PR screenshots

The repo rule (root CLAUDE.md): a visual change ships with before/after screenshots, desktop and mobile where relevant, committed under docs/screenshots/ and referenced from the PR body. This skill is the capture recipe.

1. Use the change-aware tooling first

With npm run dev running (serves :5173):

git diff <base>...HEAD > /tmp/pr.diff
BROWSER_PATH=/path/to/chrome DIFF_FILE=/tmp/pr.diff SHOTS_DIR=pr-shots \
  node scripts/pr_screenshots.mjs

scripts/pr_screenshots.mjs drives the OFFLINE client through the shared entry flow (scripts/enter_offline_game.mjs, which handles the intro overlay that otherwise hides #ui) and decides WHAT to shoot from the diff: specific windows via the target table, the generic desktop/mobile HUD for broad visual changes, and nothing for non-visual diffs.

Adding coverage is one entry in scripts/pr_shot_targets.mjs, not a new script. Each target maps changed-path substrings to a bring-up recipe (driving window.__game) and a clip region. Only write a bespoke scripts/<thing>_shot.mjs when the flow genuinely cannot be a target entry (for example an online-only or multi-client scene).

Standing capture rule (maintainer preference): every capture rig seeds the LOWEST graphics preset before the app boots. Seed it the way the existing rigs seed presets, via page.evaluateOnNewDocument writing localStorage woc_settings with { graphicsPreset: 1 } before page.goto. scripts/climb_stall_shot.mjs shows the seeding MECHANISM, but copy only the shape: that rig deliberately seeds a high profile (preset 5, the Advanced expert profile whose sub-dials it also seeds; the ladder in src/ui/options_view.ts tops out at the Insane preset above Ultra) because its purpose is a graphics shot. The default preset is not the lowest either (src/game/settings.ts pins the range), so an unseeded rig is NOT lowest. The one exception: shots whose PURPOSE is a graphics comparison (preset ladders, VFX quality, shadow tiers) keep the preset the comparison needs.

Read the full file on GitHub · 73 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. 12d ago First seen · 73 lines · 99 tokens per session scan A 6850e6dd96a4

Subscribe to this mod's changes

pr-screenshots is a skill published in the GitHub repository levy-street/world-of-claudecraft (2,251 stars, last pushed yesterday), licensed MIT. It adds 99 tokens to every session and 1,033 once invoked, about $0.0005 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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