band-play: Skill for Claude Code

.claude/skills/band-play-repo/SKILL.md

band-play-repo is a skill for Claude Code from borbiuk/band-play. It costs 31 tokens per session (205 once invoked), scanned A, original, MIT.

Repository guidance for the Bandcamp Play Chrome extension, a browser add-on that plays Bandcamp music. It tells coding agents how to understand the project before changing its TypeScript code or extension settings.

In plain words
What is it for?
Use it when modifying the Bandcamp Play repository, especially its TypeScript files, Chrome extension manifest, messages, or documentation.
Why use it?
It reduces the risk of breaking the extension’s structure, communication between its parts, or build process. It also points agents to the right project instructions and documentation.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is borbiuk/band-play's own configuration. It tells Claude Code how to work on band-play 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 band-play configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/borbiuk/band-play/master/.claude/skills/band-play-repo/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/borbiuk/band-play

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 band-play-repo

README.md
[![agentmods](https://agentmods.dev/badge/skills/borbiuk/band-play/band-play-repo/github.svg)](https://agentmods.dev/skills/borbiuk/band-play/band-play-repo)
Your own site
<a href="https://agentmods.dev/skills/borbiuk/band-play/band-play-repo"><img src="https://agentmods.dev/badge/skills/borbiuk/band-play/band-play-repo/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 band-play-repo

Your own site · 80×15
<a href="https://agentmods.dev/skills/borbiuk/band-play/band-play-repo"><img src="https://agentmods.dev/badge/skills/borbiuk/band-play/band-play-repo.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 205 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 $0.00031 $0.00205
Opus 5 $0.00015 $0.00102
Sonnet 5 $0.00006 $0.00041
Haiku 4.5 $0.00003 $0.00020

Measured 12d ago against content hash 48b9c8fefa63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

band-play-repo 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/band-play-repo/SKILL.md · 12 lines

What it actually says

Bandcamp Play repo (Claude Code)

  1. Read AGENTS.md at the repository root for entrypoints, build commands, and MV3 boundaries.
  2. Project skills live under .claude/skills/; use chrome-extension-ai-assist, chrome-extension-docs, or article-writing as the task implies. The technical-writer subagent (.claude/agents/) handles heavier documentation work.
  3. Prefer official Chrome docs on developer.chrome.com; mirrored pages live under .claude/skills/chrome-extension-docs/references/.
  4. Keep changes minimal unless the user explicitly asks for a broad refactor (see working rules in CLAUDE.md).
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 · 12 lines · 31 tokens per session scan A 48b9c8fefa63

Subscribe to this mod's changes

band-play-repo is a skill published in the GitHub repository borbiuk/band-play (21 stars, last pushed 1mo ago), licensed MIT. It adds 31 tokens to every session and 205 once invoked, about $0.0002 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.

Related

Other skills, from other repositories

codex-control-chrome-mcp

Use Codex Control Chrome MCP to control the user's normal Chrome profile through the Codex Chrome extension. Use when a task needs existing Chrome tabs, cookies, logged-in sessions, installed extensions, CDP commands, page inspection, navigation, screenshots, network/console events, or browser automation from an MCP…

iola1999/codex-control-chrome-mcp · 79 tokens

control-chrome-bridge

Drive the user's real Chrome browser — their own profile, tabs, cookies and logged-in sessions — through the chrome-bridge MCP server. Use for tasks that need existing browser state: reading a page behind a login, filling a form on a site the user is signed into, testing a local app in a real browser, or inspecting…

ShalomObongo/chrome-bridge-mcp · 114 tokens

apartment-finder

Search for apartments across multiple real estate platforms, compare listings side by side, and help submit inquiries or applications. Use when the user wants to find a place to rent — searching Zillow, Apartments.com, Craigslist, and similar sites with their real signed-in browser. Examples: "find me a 1BR in Boston…

hanzili/hanzi-browse · 91 tokens

data-extractor

Extract structured data from websites into CSV or JSON. Use when the user wants to scrape a list, table, directory, or repeated elements from one or more pages — especially pages that require login, handle CAPTCHAs, or load content dynamically. Examples: "pull all company names and emails from this directory", "export…

hanzili/hanzi-browse · 0 tokens

hanzi-browse

Delegates a browsing task to a sub-agent running in the USER'S OWN Chrome — the browser they have open right now, already signed into everything. Give it a task in natural language ("check my LinkedIn DMs", "post this reply on X", "test signup on localhost:3000") and watch the sub-agent with browserstatus, steer it…

hanzili/hanzi-browse · 145 tokens

job-applier

Apply to jobs from your real browser. Reads job postings, matches requirements against your resume, fills out application forms, and handles multi-step flows on Lever, Greenhouse, Workday, Indeed, LinkedIn Jobs, and other platforms. Reviews everything before submitting. Requires the hanzi browser automation MCP server…

hanzili/hanzi-browse · 68 tokens