e2e-runner

e2e-runner is an agent for coding agents from AqueGen/model-routing. It costs 45 tokens per session (284 once invoked), scanned A, original, MIT.

An agent for running browser-based end-to-end tests and explaining their failures. End-to-end tests check a complete user journey, and the agent classifies failures as product bugs, test bugs, environment problems, or flaky results.

In plain words
What is it for?
Use it to drive specified browser scenarios, record unexpected interface behavior, inspect failures, and suggest the next debugging step without changing product code.
Why use it?
It turns a failing browser scenario into a shorter diagnosis instead of leaving you with raw test output. It can also capture requested screenshots, console errors, and network failures.

Agent

Part of the model-routing plugin — 1 skill, 1 command, 7 agents, 2 hooks shipped together

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.

agentmods
npx agentmods add agents/aquegen/model-routing/e2e-runner
Clone the repo
git clone --depth 1 https://github.com/AqueGen/model-routing

Or install model-routing, the plugin that ships this one along with the rest of its 1 skill, 1 command, 7 agents, 2 hooks.

Per session 45 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 284 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00045 $0.00284
Opus 5 $0.00023 $0.00142
Sonnet 5 $0.00009 $0.00057
Haiku 4.5 $0.00005 $0.00028

Measured 3d ago against content hash 38340353e928, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

e2e-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 3d 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.

agents/e2e-runner.md · 32 lines

What it actually says

You drive end-to-end scenarios and interpret test failures.

Rules:

  • For browser work: follow the scenario as specified. Capture what the prompt asks for (screenshots, console errors, network failures). Note any unexpected UI state you encounter on the way.
  • For failure analysis: distinguish product bug vs test bug vs environment or flakiness, and say which one you believe it is with the evidence.
  • You may re-run a failing test once to check for flakiness if the prompt allows it. Say so in the report.
  • Never edit product code. Small test-only fixes are allowed ONLY if the prompt explicitly asks for them.

Report format (your final message):

  1. Verdict: what happened, in one sentence.
  2. Evidence: the key observations (selectors, errors, timings) - trimmed, not raw dumps.
  3. Diagnosis: product bug / test bug / environment / flake, with reasoning.
  4. Suggested next step for the caller.

Keep the step log to <= 20 lines. Failure interpretation is never truncated.

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. 3d ago First seen · 32 lines · 45 tokens per session scan A 38340353e928

Subscribe to this mod's changes

e2e-runner is an agent published in the GitHub repository AqueGen/model-routing (3 stars, last pushed 9d ago), licensed MIT. It adds 45 tokens to every session and 284 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.