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/skills/chrome-extension-ai-assist/SKILL.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/skills/borbiuk/band-play/chrome-extension-ai-assist)<a href="https://agentmods.dev/skills/borbiuk/band-play/chrome-extension-ai-assist"><img src="https://agentmods.dev/badge/skills/borbiuk/band-play/chrome-extension-ai-assist/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.
<a href="https://agentmods.dev/skills/borbiuk/band-play/chrome-extension-ai-assist"><img src="https://agentmods.dev/badge/skills/borbiuk/band-play/chrome-extension-ai-assist.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00048 | $0.00356 |
| Opus 5 | $0.00024 | $0.00178 |
| Sonnet 5 | $0.00010 | $0.00071 |
| Haiku 4.5 | $0.00005 | $0.00036 |
Grade A, and why
chrome-extension-ai-assist 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.
What it actually says
Chrome extension + AI assistants (Bandcamp Play)
Official baseline
Always treat this as authoritative for how Chrome describes AI-assisted extension development:
Do not treat model output as a specification of chrome.* APIs.
Repo-specific checklist
- Read root AGENTS.md (entrypoints and constraints).
- After
public/manifest.jsonedits — cross-check Manifest reference and Declare permissions. - Run
npm run buildand loaddist/unpacked when behavior is non-trivial. - Messaging edits must align with
MessageCode,src/shared/models/messages/, andmessages-background-service.ts(messaging-conventions.md). - Prefer mirrored docs loaded via the chrome-extension-docs skill instead of guessing API shapes.
What to avoid
- Hashed output filenames without manifest + webpack alignment (chrome-extension-architecture.md).
- Ad hoc string-only message protocols outside shared enums/models.
- Any pattern that violates MV3 rules on packaged, locally executed extension code.
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.
- 12d ago First seen · 29 lines · 48 tokens per session scan A 3991f6744177
chrome-extension-ai-assist is a skill published in the GitHub repository borbiuk/band-play (21 stars, last pushed 1mo ago), licensed MIT. It adds 48 tokens to every session and 356 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.
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