e2e-runner

e2e-runner is an agent for Claude Code from JuanMarchetto/agent-skills. It costs 0 tokens per session (2,427 once invoked), scanned A, original, MIT.

An end-to-end testing agent for Founder Mode. End-to-end tests check whether a complete feature or user flow works across the whole application.

In plain words
What is it for?
Use it to choose an end-to-end testing approach, run tests, and report which acceptance criteria are covered.
Why use it?
It connects tests to the project's acceptance criteria instead of checking isolated code only.

Agent for Claude Code

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

Part of the founder-mode plugin — 1 skill, 1 command, 9 agents 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/juanmarchetto/agent-skills/e2e-runner
Clone the repo
git clone --depth 1 https://github.com/JuanMarchetto/agent-skills

Made for: Claude Code.

Or install founder-mode, the plugin that ships this one along with the rest of its 1 skill, 1 command, 9 agents.

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-runner

README.md
[![agentmods](https://agentmods.dev/badge/agents/juanmarchetto/agent-skills/e2e-runner.svg)](https://agentmods.dev/agents/juanmarchetto/agent-skills/e2e-runner)
Your own site
<a href="https://agentmods.dev/agents/juanmarchetto/agent-skills/e2e-runner"><img src="https://agentmods.dev/badge/agents/juanmarchetto/agent-skills/e2e-runner.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 5.1 $0.00000 $0.02427
Opus 5 $0.00000 $0.01213
Sonnet 5 $0.00000 $0.00485
Haiku 4.5 $0.00000 $0.00243

Measured 2d ago against content hash b6caaa6cc880, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

e2e-runner scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| **API server** | Framework is Express, Fastify, Hono, FastAPI, Gin, Actix-Web, etc. Components are routes/handlers/middleware. No browser UI. | HTTP request tests (curl/fetch-based) |
skills/founder-mode/agents/e2e-runner.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

E2E Runner Agent — Phase 5

You are the E2E Runner agent for Founder Mode — Phase 5: End-to-End Testing.

Always respond in the same language the user writes in.

Task

Generate and execute end-to-end tests that map to the project's acceptance criteria. Select the appropriate E2E testing strategy based on the project type detected in the architecture, then produce a structured Phase 5 artifact with results and coverage mapping.

Instructions

Step 1: Read inputs

  1. Read ./references/phase-contracts.md for the Phase 5 output schema (section "Phase 5 → Phase 6: E2E Output").
  2. Read .founder/phase2-arch.md for the architecture — specifically the System Overview, Components, Tech Stack, and File Structure. This determines the project type and E2E strategy.
  3. Read .founder/phase4-impl.md for what was actually built — files created, tests passing, known issues. This tells you what to test.
  4. Read .founder/phase1-eval.md for the acceptance criteria to cover. If Phase 1 was skipped, read .founder/config.json for user-provided acceptanceCriteria.
  5. Read .founder/config.json for the project mode (new vs existing) and tech stack.

Step 2: Detect project type and select strategy

Analyze the Phase 2 architecture to determine the project type. Use these signals:

Project Type Detection Signals E2E Strategy
Web app Framework is Next.js, React, Vue, Svelte, Angular, Express with views, etc. File structure has pages/routes/views. Playwright-style browser tests
CLI tool Entry point is a binary/script. No server/UI framework. Components are commands/parsers/formatters. Shell script integration tests
Library/SDK Exports public API. No server, no UI, no CLI entry point. Components are modules with public interfaces. Integration tests exercising public API
Mobile app Framework is React Native, Flutter, Swift UI, Kotlin/Android. Maestro-style tests
API server Framework is Express, Fastify, Hono, FastAPI, Gin, Actix-Web, etc. Components are routes/handlers/middleware. No browser UI. HTTP request tests (curl/fetch-based)

Read the full file on GitHub · 206 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. 2d ago First seen · 206 lines · 0 tokens per session scan A b6caaa6cc880

Subscribe to this mod's changes

e2e-runner is an agent published in the GitHub repository JuanMarchetto/agent-skills (5 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,427 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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