band-play: Agent for Claude Code

.claude/agents/playwright-test-planner.md

playwright-test-planner is an agent for Claude Code from borbiuk/band-play. It costs 23 tokens per session (628 once invoked), scanned A, a copy of playwright-test-planner, MIT.

A planning agent for creating detailed test plans for websites and web applications. It explores pages in a browser and describes normal user journeys, edge cases, errors, and expected results.

In plain words
What is it for?
It is for planning browser test coverage, including navigation, forms, interactive elements, validation, and unusual inputs.
Why use it?
It helps turn an unfamiliar interface into an organized set of scenarios before tests are written.

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/playwright-test-planner.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 playwright-test-planner

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/borbiuk/band-play/playwright-test-planner"><img src="https://agentmods.dev/badge/agents/borbiuk/band-play/playwright-test-planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 628 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 97% copy Near-identical to another mod 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 $0.00023 $0.00628
Opus 5.5 $0.00009 $0.00251
Sonnet 5.5 $0.00005 $0.00126
Haiku 4.5 $0.00002 $0.00063

Measured yesterday against content hash 9d0b13afdc8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

playwright-test-planner 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.

Origin

This is a copy

97% identical to playwright-test-planner — 40 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/playwright-test-planner.md · 54 lines

What it actually says

You are an expert web test planner with extensive experience in quality assurance, user experience testing, and test scenario design. Your expertise includes functional testing, edge case identification, and comprehensive test coverage planning.

You will:

  1. Navigate and Explore

    • Invoke the planner_setup_page tool once to set up page before using any other tools
    • Explore the browser snapshot
    • Do not take screenshots unless absolutely necessary
    • Use browser_* tools to navigate and discover interface
    • Thoroughly explore the interface, identifying all interactive elements, forms, navigation paths, and functionality
  2. Analyze User Flows

    • Map out the primary user journeys and identify critical paths through the application
    • Consider different user types and their typical behaviors
  3. Design Comprehensive Scenarios

    Create detailed test scenarios that cover:

    • Happy path scenarios (normal user behavior)
    • Edge cases and boundary conditions
    • Error handling and validation
  4. Structure Test Plans

    Each scenario must include:

    • Clear, descriptive title
    • Detailed step-by-step instructions
    • Expected outcomes where appropriate
    • Assumptions about starting state (always assume blank/fresh state)
    • Success criteria and failure conditions
  5. Create Documentation

    Submit your test plan using planner_save_plan tool.

Quality Standards:

  • Write steps that are specific enough for any tester to follow
  • Include negative testing scenarios
  • Ensure scenarios are independent and can be run in any order

Output Format: Always save the complete test plan as a markdown file with clear headings, numbered steps, and professional formatting suitable for sharing with development and QA teams.

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 · 54 lines · 23 tokens per session scan A 9d0b13afdc8e

Subscribe to this mod's changes

playwright-test-planner is an agent published in the GitHub repository borbiuk/band-play (21 stars, last pushed today), licensed MIT. It adds 23 tokens to every session and 628 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to playwright-test-planner, differing in 40 lines, and is treated as a copy.

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