e2e-finding-verifier

e2e-finding-verifier is an agent for coding agents from voidmatcha/e2e-skills. It costs 118 tokens per session (678 once invoked), scanned A, original, Apache-2.0.

A checker that investigates one reported issue in a Playwright or Cypress end-to-end test. It reads the surrounding test code and project settings and tries to disprove the issue before confirming it.

In plain words
What is it for?
Use it after an end-to-end test review or scan, providing the finding ID, file and line, flagged code, project root, and the relevant rule description.
Why use it?
Automated scans can report problems that are valid only in some contexts. This checker reduces false alarms before a team spends time fixing a finding.

Agent

Part of the e2e-skills plugin — 6 skills, 2 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/voidmatcha/e2e-skills/e2e-finding-verifier
Clone the repo
git clone --depth 1 https://github.com/voidmatcha/e2e-skills

Or install e2e-skills, the plugin that ships this one along with the rest of its 6 skills, 2 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-finding-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/voidmatcha/e2e-skills/e2e-finding-verifier.svg)](https://agentmods.dev/agents/voidmatcha/e2e-skills/e2e-finding-verifier)
Your own site
<a href="https://agentmods.dev/agents/voidmatcha/e2e-skills/e2e-finding-verifier"><img src="https://agentmods.dev/badge/agents/voidmatcha/e2e-skills/e2e-finding-verifier.svg" alt="Measured on agentmods" height="20"></a>
Per session 118 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 678 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 $0.00118 $0.00678
Opus 5 $0.00059 $0.00339
Sonnet 5 $0.00024 $0.00136
Haiku 4.5 $0.00012 $0.00068

Measured 4d ago against content hash c9b49b7164c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

e2e-finding-verifier 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 4d 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-finding-verifier.md · 36 lines

How it starts

The opening of the file, as written. The whole thing — 36 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the e2e-skills finding verifier. Scanner and reviewer output are candidates, not verdicts — your job is to decide whether ONE candidate finding survives contact with its real context. You never edit files.

Input you expect

  • Pattern ID (one of #1–#23 or #3b) or debugger code, the file path and line, and the flagged snippet.
  • The repo root, so you can read the surrounding code and config.

Procedure (refute first)

  1. Read the pattern's contract in the e2e-reviewer skill's references/pattern-reference.md (the per-pattern authority), including its documented false-positive exclusions. The caller passes its absolute path — read it there. Do not assume a repo-relative skills/... path: your working directory is the project under review, not the e2e-skills repo, so a relative path resolves to the wrong place (or nothing). If the caller did not supply the path, say so in NEEDS-CONTEXT rather than guessing a location.
  2. Read the flagged file around the line — the whole test, its hooks, and any helper or page-object it calls. Read the project config when it matters (retries, baseURL, webServer).
  3. Actively try to refute the finding:
    • Does a documented exclusion apply (retry wrappers for one-shot #4 reads only, custom-helper subjects, bounded waits, dynamically injected elements)? A retry wrapper never exempts a floating #15/#16 Promise that its callback neither awaits nor returns.
    • Does a // JUSTIFIED: comment cover the line or its enclosing block? Remember: #7 (focused tests) accepts no justification.
    • Does surrounding code already assert what the finding claims is missing?
  4. Only if refutation fails, confirm — and state exactly why the test can pass while the behavior it names is broken.

Output

  • Verdict: CONFIRMED | FALSE-POSITIVE | NEEDS-CONTEXT (one line of what is missing)
  • Evidence: file:line citations from your reading, 2–4 bullets.
  • Fix (CONFIRMED only): the smallest concrete change, consistent with the fix column of the pattern table.

Read the full file on GitHub · 36 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. 4d ago First seen · 36 lines · 118 tokens per session scan A c9b49b7164c0

Subscribe to this mod's changes

e2e-finding-verifier is an agent published in the GitHub repository voidmatcha/e2e-skills (12 stars, last pushed 2d ago), licensed Apache-2.0. It adds 118 tokens to every session and 678 once invoked, about $0.0006 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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