pet-forge: Instructions file for Claude Code

CLAUDE.md

pet-forge CLAUDE.md is an instructions file for Claude Code from rullerzhou-afk/pet-forge. It costs 662 tokens per session, scanned A, original, MIT.

Repository instructions for Pet Forge, a toolkit for creating animated desktop pets. It supports separate SVG-based animations and APNG frame animations, with rules for keeping public-repository content safe.

In plain words
What is it for?
Creating small looping desktop-pet animations as self-contained SVG HTML files or APNG files, using the project's prescribed folders and generation steps.
Why use it?
It explains which asset workflow to use and sets boundaries that help prevent private names, paths, handles, or unpublished references from entering a public repository.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is rullerzhou-afk/pet-forge's own configuration. It tells Claude Code how to work on pet-forge 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 pet-forge configures →

Reuse

Borrowing it

Nothing to install: this file belongs to rullerzhou-afk/pet-forge. 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/rullerzhou-afk/pet-forge/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/rullerzhou-afk/pet-forge

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 662 This file is loaded in full into every session.
When invoked 662 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 $0.00662 $0.00662
Opus 5.5 $0.00265 $0.00265
Sonnet 5.5 $0.00132 $0.00132
Haiku 4.5 $0.00066 $0.00066

Measured 27d ago against content hash b6fcf9cdb8b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pet-forge 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 27d 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 · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pet-forge Agent Notes

This file is the short entry point for AI coding agents working in this repository. Keep user-facing docs public-safe: no personal names, local machine paths, private project paths, private handles, or unpublished asset references.

Project

pet-forge is a toolkit for building custom desktop pets. It provides two base output routes that can also be combined:

SVG Route

Output: self-contained .svg.html files.

  • Local vector workflow: reference image -> background removal -> PNG to SVG -> preset/template -> CSS/JS animation.
  • Best for precise loops, low file size, and hand-tuned animation.
  • Main folders: routes/svg/presets, routes/svg/templates, routes/svg/conventions, routes/svg/tools/png2svg.

APNG Route

Output: .apng frame animations.

  • Generation workflow: reference and keyframe images -> prompt template -> explicit output ratio/resolution -> video generation with first/last-frame anchoring -> optional segment assembly and speed selection -> chroma key -> APNG.
  • Best for fast rich visual exploration when API reruns are acceptable.
  • For Doubao / Seedance, read routes/apng/conventions/doubao-video-output.md before fixing the reference canvas or output ratio.
  • Main folders: routes/apng/prompts, routes/apng/conventions, routes/apng/tools.

Hybrid Route

Output: APNG character motion with synchronized SVG overlays.

  • Best for natural generated motion plus precise text, symbols, particles, glow, or tracked effects.
  • Keep the generated prop surface blank when exact content will be added later, then drive the SVG layer from the same frame clock and measured anchors.

Public-Repo Rules

  • Do not add personal names, account handles, emails, local usernames, or absolute local paths.
  • Do not reference private checkouts as if public users can access them.
  • Do not commit .env, generated outputs, caches, or node_modules.
  • Keep character/product assets separate from this toolkit unless they are explicitly licensed for inclusion.
  • Keep quick-start commands runnable from the paths shown.

Read the full file on GitHub · 68 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. 27d ago Changed · +6 tokens per session b6fcf9cdb8b8
  2. 1mo ago Changed · +8 lines · +132 tokens per session 3e19b71fd01b
  3. 1mo ago First seen · 60 lines · 524 tokens per session scan A bac056c75788

Subscribe to this mod's changes

pet-forge CLAUDE.md is an instructions file published in the GitHub repository rullerzhou-afk/pet-forge (65 stars, last pushed 28d ago), licensed MIT. It adds 662 tokens to every session, about $0.0026 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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