Borrowing it
Nothing to install: this file belongs to borbiuk/band-play. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/borbiuk/band-play/master/CLAUDE.mdgit clone --depth 1 https://github.com/borbiuk/band-playWrote 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.
[](https://agentmods.dev/instructions/borbiuk/band-play/claude-md)<a href="https://agentmods.dev/instructions/borbiuk/band-play/claude-md"><img src="https://agentmods.dev/badge/instructions/borbiuk/band-play/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00386 | $0.00386 |
| Opus 5 | $0.00193 | $0.00193 |
| Sonnet 5 | $0.00077 | $0.00077 |
| Haiku 4.5 | $0.00039 | $0.00039 |
Grade A, and why
band-play 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 7d 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.
What it actually says
Claude Code — Bandcamp Play
Read AGENTS.md first. It lists entrypoints, MV3 constraints, messaging conventions, and build commands.
Working rules
- Follow existing project conventions (code style, folder structure, naming, dependency management) unless explicitly instructed otherwise.
- Never refactor unless explicitly requested; apply only the changes directly required for the current request. Keep changes minimal, explicit, and localized.
- Always use a block
if-returnstatement (avoid inline one-liners). - All comments and documentation must be in English; answer in the same language as the question.
- Git safety: never run
commit,reset,rebase,push,pull --force,checkout --force,clean, orstash dropunless the user explicitly asks; confirm beforegit pull,git merge, orgit stash.
Detailed rules (read on demand)
- Chrome extension architecture:
.claude/rules/chrome-extension-architecture.md - Messaging conventions:
.claude/rules/messaging-conventions.md - Maintaining agent context:
.claude/rules/maintaining-agent-context.md
Skills and commands
- Skills (
.claude/skills/):chrome-extension-docs(offline Chrome docs mirror),chrome-extension-ai-assist(AI-assisted extension work),band-play-repo(repo orientation),article-writing(article branch). - Slash commands (
.claude/commands/):/build,/watch,/lint,/format,/zip. - AI + extensions (official): https://developer.chrome.com/docs/extensions/ai/build_with_ai
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.
- 7d ago First seen · 24 lines · 386 tokens per session scan A d63f11d5b68d
band-play CLAUDE.md is an instructions file published in the GitHub repository borbiuk/band-play (21 stars, last pushed 29d ago), licensed MIT. It adds 386 tokens to every session, about $0.0019 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.
Other instructions, from other repositories
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.
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).
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.
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.
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).
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.