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rubiks-cube-solver: Skill for Claude Code

.agents/skills/solver-search/SKILL.md

solver-search is a skill for Claude Code, Codex from williamisnotdefined/rubiks-cube-solver. It costs 23 tokens per session (2,953 once invoked), scanned A, original, MIT.

A development guide for changing search logic in a Rubik’s Cube solver, including heuristics, pruning tables, two-phase solving, and pattern databases. It assumes the cube’s move and state behavior must remain correct first.

In plain words
What is it for?
Use it when adding or modifying IDA* search, generated two-phase solving, heuristics, pruning, or pattern-database code, with shallow deterministic tests as an early check.
Why use it?
It provides the project rules and technical context needed to change solving code without mistaking search bugs for cube-engine bugs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is williamisnotdefined/rubiks-cube-solver's own configuration. It tells Claude Code and Codex how to work on rubiks-cube-solver 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 rubiks-cube-solver configures →

not rated 5repo 4d ago A scan 23 tokens original MIT
View source ↗ williamisnotdefined/rubiks-cube-solver
Reuse

Borrowing it

Nothing to install: this file belongs to williamisnotdefined/rubiks-cube-solver. 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/williamisnotdefined/rubiks-cube-solver/main/.agents/skills/solver-search/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/williamisnotdefined/rubiks-cube-solver

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 solver-search

README.md
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Your own site
<a href="https://agentmods.dev/skills/williamisnotdefined/rubiks-cube-solver/solver-search"><img src="https://agentmods.dev/badge/skills/williamisnotdefined/rubiks-cube-solver/solver-search/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 solver-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/williamisnotdefined/rubiks-cube-solver/solver-search"><img src="https://agentmods.dev/badge/skills/williamisnotdefined/rubiks-cube-solver/solver-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,953 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00023 $0.02953
Opus 5.5 $0.00009 $0.01181
Sonnet 5.5 $0.00005 $0.00591
Haiku 4.5 $0.00002 $0.00295

Measured 2mo ago against content hash 5edffe9a2f19, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

solver-search 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.

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.

.agents/skills/solver-search/SKILL.md · 291 lines

How it starts

The opening of the file, as written. The whole thing — 291 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generated from ai/registry.json. Do not edit manually.

Canonical skill: ../../../ai/skills/solver-search.md.

Referenced context:

  • ../../../ai/rules/solver-search-rules.md
  • ../../../ai/rules/testing-rules.md
  • ../../../ai/architecture/project-architecture.md
  • ../../../ai/architecture/solver-search.md
  • ../../../ai/architecture/cube-engine.md
  • ../../../ai/glossary/cube-terms.md

This file is compiled from canonical AI knowledge files. Edit canonical files under ai, then run npm run ai:sync.

Canonical Skill: ai/skills/solver-search.md

Use this skill when adding or changing IDA*, generated two-phase search, heuristics, pruning, or pattern database code.

Goal

Add search behavior only on top of correct cube state and move semantics.

Read First

  • ai/rules/solver-search-rules.md
  • ai/rules/testing-rules.md
  • ai/architecture/project-architecture.md
  • ai/architecture/solver-search.md
  • ai/architecture/cube-engine.md
  • ai/glossary/cube-terms.md

Workflow

  • Verify cube move behavior before trusting search results.
  • Start with shallow deterministic cases.
  • Keep heuristics separate from traversal logic.
  • Mark whether each heuristic is admissible.
  • Add node/depth metrics for non-trivial algorithms.

Expected Output

  • Search returns explicit move sequences and metrics.
  • Tests cover solved state and shallow known scrambles.
  • No learned or external inference heuristic is introduced without an explicit current product requirement.

Verification

  • Run cargo test -p cube-engine when Rust is installed.
  • Include targeted tests for the changed search module.

Referenced Context

Reference: ai/rules/solver-search-rules.md

Solver Search Rules

Rules for search, heuristics, and pattern database work.

Always

  • Keep search algorithms in crates/cube-engine/src/search unless a later crate boundary is introduced.
  • Keep heuristics explicit about admissibility.
  • Prefer bounded IDA* and generated two-phase paths after move tables are correct.
  • Prune inverse moves and repeated same-axis branches where correctness allows it.
  • Measure node counts and depth limits for non-trivial search changes.

Read the full file on GitHub · 291 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. 2mo ago First seen · 291 lines · 23 tokens per session scan A 5edffe9a2f19

Subscribe to this mod's changes

solver-search is a skill published in the GitHub repository williamisnotdefined/rubiks-cube-solver (5 stars, last pushed 4d ago), licensed MIT. It adds 23 tokens to every session and 2,953 once invoked, about $0.0001 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 2026-08-31.

Game development
Related

solver-search compared with skills from other repositories

solver-search next to 6 skills from other repositories
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solver-searchwilliamisnotdefined/rubiks-cube-solverSkill54d agoMITA23Claude Code, Codex
playtest-reportDonchitos/Claude-Code-Game-StudiosSkill36k18d agoMITA20Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skillsSkill6.9k9d agoApache-2.0A95Claude Code
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motionOpenDCAI/GameFactory-3ASkill1.0k8d agoApache-2.0A0Claude Code, Codex
unity-addressablesBesty0728/Unity-SkillsSkill1.9kyesterdayMITA25Claude Code, Codex
unity-manual-componentBesty0728/Unity-SkillsSkill1.9kyesterdayMITA36Claude Code, Codex