runner

runner is a skill for Claude Code from Autodesk/claude-browser-test-skills. It costs 33 tokens per session (1,222 once invoked), scanned A, original, Apache-2.0.

A tool that executes a previously stabilized end-to-end browser test exactly as written and reports whether it passed or failed.

In plain words
What is it for?
Use it for repeatable checks of complete web-app flows in a local or reachable test environment.
Why use it?
It provides consistent validation without silently changing steps or working around failures.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the browser-test plugin — 4 skills shipped together

Good fit Use it for repeatable checks of complete web-app flows in a local or reachable test environment.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/autodesk/claude-browser-test-skills/runner
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Autodesk/claude-browser-test-skills --skill runner
Clone the repo
git clone --depth 1 https://github.com/Autodesk/claude-browser-test-skills

Made for: Claude Code.

Or install browser-test, the plugin that ships this one along with the rest of its 4 skills.

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 runner

README.md
[![agentmods](https://agentmods.dev/badge/skills/autodesk/claude-browser-test-skills/runner.svg)](https://agentmods.dev/skills/autodesk/claude-browser-test-skills/runner)
Your own site
<a href="https://agentmods.dev/skills/autodesk/claude-browser-test-skills/runner"><img src="https://agentmods.dev/badge/skills/autodesk/claude-browser-test-skills/runner.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,222 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 $0.00033 $0.01222
Opus 5 $0.00016 $0.00611
Sonnet 5 $0.00007 $0.00244
Haiku 4.5 $0.00003 $0.00122

Measured 7d ago against content hash 58560ea6127f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

runner 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.

skills/runner/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

E2E Test Runner

Overview

Executes a refined, stable E2E test case exactly as documented. No improvisation, no refinement - just faithful execution and clear pass/fail reporting.

Core principle: The test case is the source of truth. If a step fails, the test fails. Do not work around failures.

When to Use

  • Running a previously refined test case
  • User says "run the test" or "execute {test name}"
  • CI-style validation of a known-good flow

Do NOT use when:

  • No test case file exists (use browser-test:author)
  • The test is known to be flaky (use browser-test:refiner)

Prerequisites

  • Stable test case file in tests/e2e/{area}/
  • The Playwright MCP server must be available (configured in .mcp.json)
  • Dev server must be running (or E2E_BASE_URL set to a reachable environment)

Process

1. Load test context

Read in order:

  1. tests/e2e/conventions.md (global)
  2. tests/e2e/{area}/conventions.md (area)
  3. The test case file

2. Environment gate

Read E2E_ENVIRONMENT from the environment (default: local). Check the test case's Environments line in preconditions. If the current environment is not listed, refuse to execute and report:

BLOCKED: {test name}
Reason: Test not allowed in "{environment}" (allowed: {environments list})

This is a hard stop - do not proceed, do not ask if the user wants to override.

3. Verify preconditions

Check each remaining precondition listed in the test case. If any are unmet, report and stop.

Read E2E_BASE_URL from the environment (default: http://localhost:5173). Use this value wherever the test references E2E_BASE_URL.

4. Set up fresh session

Follow Session Management from global conventions:

  1. Close any existing browser session (browser_close)
  2. Navigate to E2E_BASE_URL - this starts a fresh browser instance
  3. Verify clean session (cookie consent banner should appear on first navigation)

5. Execute steps

Execute the three hook sections in this order: ## Before Hook## Test Steps## After Hook . Validate the markdown has all three sections before starting — if any is missing, refuse to execute and report a malformed test case.

Read the full file on GitHub · 128 lines

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. 7d ago First seen · 128 lines · 33 tokens per session scan A 58560ea6127f

Subscribe to this mod's changes

runner is a skill published in the GitHub repository Autodesk/claude-browser-test-skills (3 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 33 tokens to every session and 1,222 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 2026-08-31.

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