Your agent
works.
You see it.

Spend, rounds, subagents. Follow what happens in the session while the work keeps moving.

Monitor for free Play with the dashboard ↓

8 free tools. No login. Data on your machine.

Illustration · sample session

Round 06 · Session Radar

Calls in view.

Time, errors and outcome too.

Realtime Events

Agent at work.

You follow the trail.

without guessing
what it's doing ↗

Your observation post

No more mystery.
Enter the radar.

Switch sessions. Tap a round. Filter the events. Here you can try reading the panel, with fictional data and without touching your machine.

HARNESSUP / MONITORING

Refactor API

Claude Code · 6 sample rounds

Running

Each key is a round. Click to open the trail.

Round 06Edit · done
Calls
4
Errors
0
Time
18 s
Illustrative cost
US$ 0.08

The edit finished with no call errors.Inferred score: 8/10. An assessment, not a direct measurement.

Events in this session

    Interactive demo · fictional dataSimulation running · no connection to agents

    Realtime Events FreeWhat each tool is doing as it happens. Check whether it acted as expected during the session.

    Session Radar FreeType, outcome, calls, errors and time per round, spend by band and an overall score. Inferred scores are labeled as such.

    The NumbersBasic FREE

    Open the day.
    Read the plan.

    Your plan has a limit. The information about it should be at hand.

    See the plan details and each window, what is slipping away and your achievements. A starting point to decide how to pace the work.

    Also explore the measurement of your history ↗
    Your plan, at a glance.The Numbers
    5-hour windowBeing tracked
    Weekly windowPeriod view

    Your achievements also
    join the conversation.

    Panel illustration. The bars do not represent a real account or any promise of return.

    UptimeBasic FREE

    It's on. It's working.

    See which parts of HarnessUp are running and how many times they stopped. If something failed, the log helps you notice.

    DaemonRunning · 0 stops
    HooksRunning · 0 stops
    PanelRunning · 1 stop
    Illustrative states and counts.

    Effort has a cost.
    So does delegating.

    A light task with high reasoning. A subagent that spent a lot and delivered little. Monitoring makes these signals visible.

    Reasoning CheckBasic FREE

    Reasoning
    sized to
    the task.

    Find out how many times reasoning was short or excessive. High effort by default can weigh on you even for a one-line tweak.

    Light taskHigh effort
    The classification helps you read usage. Monitoring does not change the effort for you.

    Subagents WorkBasic FREE

    Delegated.
    Track
    the delivery.

    The work of each subagent, the model it ran on and the final result. Check whether the delivery was worth the spend.

    Project reading

    Budget model · done

    Code review

    Main model · done

    Test run

    Budget model · error found

    Illustrative tasks, models and results.

    Notice with a reason.
    No alarm for nothing.

    Did an update change the harness weight? Would another plan make a difference? Know when there's something useful to look at.

    Harness UpdateBasic FREE

    The harness updated.
    Did the weight change?

    On the first session in a new Claude Code version, get the variation in what it loads before any request, when the change goes beyond a minimum.

    One notice per new version. No need to open Harness Meter to check.
    VERSION NOTICE / EXAMPLENew version, new starting weight.

    The notice shows whether the loaded content went up or down compared with the previous version.

    Message illustration. No real version was analyzed on this page.

    Plan AdvisorBasic FREE

    Switch plans
    with an account in hand.

    See how much you would save with HarnessUp tools from other plans, based on your measured usage. The decision starts with your numbers.

    At most one notice per day. You decide whether it's worth it.
    YOUR USAGE / YOUR DECISIONFirst the diagnosis.
    Then the choice.

    On Basic FREE, HarnessUp measures and shows. Paid tools only act according to the plan and the setup.

    Compare the plans ↗

    8 tools · Basic FREE

    Control starts
    with seeing.

    Install and track your own usage. No login, email or password needed to start monitoring.

    your agent on the radar.
    your data at home.

    One line in the terminal / npm

    npm install -g harnessup
    Install for free I prefer the Windows installer

    History and measurements stay on your machine. Monitoring does not send your transcripts to this site.

    HarnessUp runs the official claude and codex with your account and never reads, stores or passes on your token or key.

    help@harnessup.dev

    Before you turn
    on the radar.

    Is all monitoring free?

    Yes. The eight tools on this page are part of Basic FREE, whose scope is one Claude Code account and one project. Higher plans widen the scope and include tools that act on the work.

    Does monitoring change the agent's work?

    These tools show what is happening, classify usage and warn when something matters. On Basic FREE, everything measures and nothing applies. To learn about the modules that act on waste, visit Economy.

    Are the Session Radar scores measurements?

    Calls, errors and time are session records. Scores and inferred assessments are labeled as inference, so you can tell the difference when reading the result.

    Is the panel on this page reading my computer?

    No. This is a demo with fictional data. Monitoring your own usage starts after you install HarnessUp, on your computer.