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Your team's QA work — done by the free Jank plugin

The Jank Claude plugin is free. Each run replaces hours of senior-QA contractor work. Drag the sliders to see what the plugin already does for your team — at $0.

Hours / month

—

QA work replaced

Equivalent value

—

at $50/hr

Annualized

—

over 12 months

You pay

forever

…

Your team

Same formula and constants as the cloud — see cloud calculator or source code.

Developers using the plugin 5

Each developer running Jank locally in their Claude Code session.

/jank_light runs / dev / day 10

Static-only code scan — 15 sec, ≈ 2.1 hr human-equivalent per run.

/jank runs / dev / day 3

Full local sweep — 6 personas, ~3 min, ≈ 8.9 hr human-equivalent per run.

/jank_test runs / dev / day 2

Surgical test of one feature — ~90 sec, ≈ 3.3 hr human-equivalent per run.

/jank_explore runs / dev / day 1

5 user-style exploratory agents — ~5-8 min, ≈ 8.1 hr human-equivalent per run.

Senior-QA hourly rate (USD)

$50 is below Glassdoor 2025 median ($75-120). Adjust to your reality.

Working days / month

Default 22 (US). Override for your region.

Per-developer breakdown

What ONE developer's plugin runs replace each month.

Command	Runs/mo	Hours	Value
Per dev / month	—	—	—

Why these numbers are defensible

$50/hr is BELOW the Glassdoor 2025 US median for senior-QA contractors ($75-120/hr). We deliberately err low so the value-claim cannot be called inflated.

Per-run hours come from a single, public formula in jankplugin/lib/value.js: setup_min + findings × per_finding_min + personas × per_persona_min + flows × per_flow_min + subpages × per_subpage_min + links × per_link_min + mobile × per_mobile_min + report_write_min. Every constant has a defensibility cheat-sheet in ROI_CALCULATOR.md: 10 min/finding (industry mean for write-up + repro + fix routing), 30 min/persona session (real persona-feedback sessions take 20-40 min), etc.

All constants are environment-overridable (JANK_HOURLY_USD, JANK_PER_FINDING_MIN, etc.). If you want a more conservative or aggressive frame, override and the calculator still works.

Cumulative tally is real, not projected — every plugin run writes to ~/.config/jank/usage.json and (if JANK_EMAIL is set) mirrors to Firestore. You can pull your team's actual cumulative total at any time. View stats →

Install the plugin (free) See cloud ROI →

Formula source: jankplugin/lib/value.js · cumulative tally ~/.config/jank/usage.json · share this calculator: copy this URL