band-play: Agent for Claude Code

.claude/agents/e2e-reviewer.md

e2e-reviewer is an agent for Claude Code from borbiuk/band-play. It costs 106 tokens per session (321 once invoked), scanned A, original, MIT.

A read-only reviewer for Playwright tests, which are automated browser tests. It checks unit, end-to-end, and live tests, along with fixtures, snapshots, configuration, and continuous-integration steps, then reports findings.

In plain words
What is it for?
It is for reviewing test coverage and reliability after Playwright tests change or before they are committed.
Why use it?
It helps catch weak or outdated browser tests without changing the tests itself.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

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/agents/e2e-reviewer.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 e2e-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/borbiuk/band-play/e2e-reviewer/github.svg)](https://agentmods.dev/agents/borbiuk/band-play/e2e-reviewer)
Your own site
<a href="https://agentmods.dev/agents/borbiuk/band-play/e2e-reviewer"><img src="https://agentmods.dev/badge/agents/borbiuk/band-play/e2e-reviewer/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 e2e-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/borbiuk/band-play/e2e-reviewer"><img src="https://agentmods.dev/badge/agents/borbiuk/band-play/e2e-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 106 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 321 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 $0.00106 $0.00321
Opus 5.5 $0.00042 $0.00128
Sonnet 5.5 $0.00021 $0.00064
Haiku 4.5 $0.00011 $0.00032

Measured yesterday against content hash 7174af3b0e8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

e2e-reviewer 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 yesterday.

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/agents/e2e-reviewer.md · 15 lines

What it actually says

You are the e2e-reviewer of the Band Play browser extension. You review test code; you never write or fix it.

  • Follow the preloaded e2e-review skill exactly: its workflow, the standard, severities, the one-problem-one-finding rule and the report format.
  • Read-only: do not edit, create or delete project files, do not install packages, never run git commands that change state, never comment on GitHub. Run lint and the changed specs only as the skill's hard rule 8 allows (unit and e2e use no network); run the live project or npm run test:snapshots only when the main session asks for it.
  • Return the report to the main session; the main session decides what to fix and who fixes it.
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. yesterday First seen · 15 lines · 106 tokens per session scan A 7174af3b0e8f

Subscribe to this mod's changes

e2e-reviewer is an agent published in the GitHub repository borbiuk/band-play (21 stars, last pushed today), licensed MIT. It adds 106 tokens to every session and 321 once invoked, about $0.0004 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 2026-10-26.

Related

Other agents, from other repositories

test-gap-finder

Finds missing, weak, or stale test coverage in a diff. Use during review when production logic, user flows, error paths, or acceptance criteria changed.

HoangNguyen0403/agent-skills-standard · 37 tokens

react18-test-guardian

Test suite fixer and verifier for React 16/17 → 18.3.1 migration. Handles RTL v14 async act() changes, automatic batching test regressions, StrictMode double-invoke count updates, and Enzyme → RTL rewrites if Enzyme is present. Loops until zero test failures. Invoked as subagent by react18-commander.

github/awesome-copilot · 81 tokens

test-healer

Classifies one failing E2E test from its artifacts, applies at most one allowed repair from the test-healing catalog, proves it with three sequential reruns and an unchanged assertion set, and returns a verdict with a route. Use per failure inside test-loop; never for production code changes.

HoangNguyen0403/agent-skills-standard · 63 tokens

testid-inserter

Inserts stable test ids into production components for each selector gap named by a test plan, following the per-framework insertion policy and never renaming existing ids. Use when a test plan or page object lists selector gaps that block E2E generation.

HoangNguyen0403/agent-skills-standard · 55 tokens

integration-test-generator

Generates one integration/E2E test from an approved test case spec using existing project patterns. Use for independent Zephyr TC, Playwright, Appium, Flutter, or API test generation.

HoangNguyen0403/agent-skills-standard · 43 tokens

test-planner

Turns approved AC/SRS into an executable test plan (scenarios, seed, selector gaps) for the test-loop workflow. Use for independent test-plan generation from stable requirements.

HoangNguyen0403/agent-skills-standard · 39 tokens