ss-assist: Instructions file for Claude Code

CLAUDE.md

ss-assist CLAUDE.md is an instructions file for Claude Code from Taka499/ss-assist. It costs 3,117 tokens per session, scanned A, original, MIT.

Project instructions for working on ss-assist, a browser-based tool that helps players choose character combinations for commissions in the Stella Sora game. They describe its React, TypeScript, Vite, Tailwind CSS, Zustand, testing, routing, and deployment setup.

In plain words
What is it for?
Use them when implementing features, fixing bugs, writing tests, updating the CSV-to-JSON data flow, or deploying the app to GitHub Pages.
Why use it?
They give a coding agent the project context and conventions needed to make changes that fit the existing application.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is Taka499/ss-assist's own configuration. It tells Claude Code how to work on ss-assist 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 ss-assist configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Taka499/ss-assist. 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/Taka499/ss-assist/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Taka499/ss-assist

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 ss-assist CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/taka499/ss-assist/claude-md/github.svg)](https://agentmods.dev/instructions/taka499/ss-assist/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/taka499/ss-assist/claude-md"><img src="https://agentmods.dev/badge/instructions/taka499/ss-assist/claude-md/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 ss-assist CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/taka499/ss-assist/claude-md"><img src="https://agentmods.dev/badge/instructions/taka499/ss-assist/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,117 This file is loaded in full into every session.
When invoked 3,117 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 $0.03117 $0.03117
Opus 5 $0.01558 $0.01558
Sonnet 5 $0.00623 $0.00623
Haiku 4.5 $0.00312 $0.00312

Measured 8d ago against content hash dc90d5a9f67e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ss-assist 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 8d 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 · 404 lines

How it starts

The opening of the file, as written. The whole thing — 404 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

ExecPlans

When writing complex features or significant refactors, use an ExecPlan (as described in _docs/PLANS.md) from design to implementation.

Project Overview

ステラソラ依頼アシスト (Stella Sora Request Assistant) is a serverless SPA that helps players optimize character combinations for commissions in the Stella Sora game. The application runs entirely client-side with no backend, deployed to GitHub Pages.

Live: https://taka499.github.io/ss-assist/

Tech Stack

  • Frontend: Vite + React 18 + TypeScript 5 (strict mode)
  • Styling: Tailwind CSS
  • State: Zustand with localStorage persistence
  • Testing: Vitest with co-located test files
  • Deployment: GitHub Pages via GitHub Actions
  • Routing: Hash-based routing (no React Router)

Key Architecture Patterns

1. Data Pipeline (CSV → JSON → React)

The data flow is: Human-editable CSV → Generated JSON (gitignored) → React components

data-sources/*.csv  (source of truth, committed)
  ↓ npm run build:data
data/*.json         (generated, gitignored)
  ↓ src/lib/data.ts (singleton loader)
React components    (via useAppStore + lib functions)

Why JSON files are gitignored:

  • CSV files are owned by game designers, not developers
  • Prevents merge conflicts when multiple people edit game data
  • GitHub Actions regenerates JSON automatically during deployment
  • Treats generated data like compiled code (similar to dist/)

2. Bitmask System for O(1) Tag Matching

The most sophisticated optimization in the codebase. Each tag category (role, style, faction, element, rarity) uses a 32-bit integer where each bit represents a tag. This enables O(1) tag matching via bitwise AND operations.

Example:

// Character has: role-001 (bit 0) and role-003 (bit 2)
characterMask = 0b0101 = 5

// Mission needs: role-001 OR role-002
conditionMask = 0b0011 = 3

// Check satisfaction with bitwise AND
(characterMask & conditionMask) !== 0  // → true (satisfied)

Read the full file on GitHub · 404 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. 8d ago First seen · 404 lines · 3,117 tokens per session scan A dc90d5a9f67e

Subscribe to this mod's changes

ss-assist CLAUDE.md is an instructions file published in the GitHub repository Taka499/ss-assist (2 stars, last pushed 20d ago), licensed MIT. It adds 3,117 tokens to every session, about $0.0156 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 2026-08-31.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens