Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/proffesor-for-testing/agentic-qenpx agentmods add skills/proffesor-for-testing/agentic-qe/e2e-flow-verifierWrote 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.
[](https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/e2e-flow-verifier)<a href="https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/e2e-flow-verifier"><img src="https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/e2e-flow-verifier/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.
<a href="https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/e2e-flow-verifier"><img src="https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/e2e-flow-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00045 | $0.01176 |
| Opus 5.5 | $0.00018 | $0.00470 |
| Sonnet 5.5 | $0.00009 | $0.00235 |
| Haiku 4.5 | $0.00005 | $0.00118 |
Grade A, and why
e2e-flow-verifier 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 5d 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.
For API calls that don't originate from the page, run the API check in a separate step (`curl` + `jq`, or a dedicated API test skill). How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
E2E Flow Verifier
Product verification skill that drives user flows with the qe-browser fleet skill (Vibium engine), asserts state at each step, and records evidence as a ZIP of screenshots + DOM snapshots.
Activation
/e2e-flow-verifier [flow-name]
Dependency
This skill uses .claude/skills/qe-browser/ for all browser automation. The vibium binary is installed automatically by aqe init. See qe-browser/SKILL.md for the full command reference.
Flow Verification Pattern (qe-browser + batch + assert)
Define the flow as a JSON batch plan and drive it with the qe-browser batch runner:
# flows/{{flow-name}}.json
cat > /tmp/{{flow-name}}.json <<'EOF'
[
{"action": "go", "url": "{{base_url}}"},
{"action": "wait_load"},
{"action": "fill", "selector": "[data-testid=email]", "text": "{{test_user}}"},
{"action": "fill", "selector": "[data-testid=password]", "text": "{{test_password}}"},
{"action": "click", "selector": "[data-testid=login-btn]"},
{"action": "wait_url","pattern": "/dashboard"},
{"action": "assert", "checks": [
{"kind": "url_contains", "text": "/dashboard"},
{"kind": "selector_visible","selector": "[data-testid=dashboard]"},
{"kind": "no_console_errors"},
{"kind": "no_failed_requests"}
]},
{"action": "click", "selector": "[data-testid={{action_element}}]"},
{"action": "assert", "checks": [
{"kind": "text_visible", "text": "{{expected_text}}"}
]}
]
EOF
# Record evidence AND drive the flow
vibium record start --screenshots --snapshots --name "{{flow-name}}"
node .claude/skills/qe-browser/scripts/batch.js --steps "@/tmp/{{flow-name}}.json"
FLOW_EXIT=$?
vibium record stop -o "test-results/{{flow-name}}/evidence.zip"
exit $FLOW_EXIT
The batch runner exits non-zero if any step fails, so CI gates work with a plain $? check.
Evidence Collection
After each flow verification, vibium record produces a ZIP containing:
- Screenshots — one per action + annotated failure shots
- DOM snapshots — before/after each interaction
- Timeline — ordered event log with URLs and timings
- Console/network logs — captured inline
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.
- 5d ago First seen · 114 lines · 45 tokens per session scan A f72c80e8e0f7
e2e-flow-verifier is a skill published in the GitHub repository proffesor-for-testing/agentic-qe (504 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 1,176 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-11.
Other skills, from other repositories
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browser-testing-with-screenshots
Use when testing web applications with visual verification - automates Chrome browser interactions, element selection, and screenshot capture for confirming UI functionality.
agent-e2e-test-specialist
Specialist subagent: Playwright, Cypress, and visual regression testing specialist. Use only when the user explicitly asks for E2E tests, browser test automation, or visual regression testing. Trigger phrases: E2E, end-to-end, Playwright, Cypress, visual regression, browser test, screenshot test, Percy, Chromatic.
browser-qa
Testing web apps through a real browser: reconnaissance before acting, selector discovery, state capture, console errors and screenshot evidence. Use on a web surface end to end, or to reproduce a front-end bug.
e2e-check
Run E2E tests or interactive browser verification. Triggers on: 'run e2e', 'e2e test', 'browser test', 'check in browser', 'verify UI', 'interactive test'.
hatch3r-browser-verify
Opt-in browser verification skill — spec-run-first Playwright verification (assertions execute in the runner, agent reads only failures), axe-core a11y audits, toHaveScreenshot() regression diffs, E2E test scaffolds, and snapshot-mode exploratory driving. Default ON for UI-affecting agent invocations; disable globally…