Turn Logged Hours Into Client-Ready Time Reports (Claude Cowork Self-Install Kit)

Turn the hours already sitting in Harvest into an invoice-ready report in minutes.

At billing time you reconstruct the week from memory, calendar scraps, and half-finished Harvest logs, and half of it is guesswork. You know you undercharge, because the hours you forgot to log in the moment are gone by the time you try to rebuild them.

The data's already there. The problem is that Harvest holds it in reports you never open, so every invoice starts from scratch instead of from what you tracked.

What this kit does

This kit connects your own AI agent to your Harvest workspace so you can ask for a client's logged hours, grouped by project or task, and get a clean summary back. Your agent pulls the entries, formats a report you can paste straight into an invoice, and flags any days that look thin or unlogged before the bill goes out. The reconstruction you used to do from memory becomes a quick read.

What you can expect

You recover 1 to 3 hours a week that used to go to time reconstruction and invoice prep. A client-ready report comes together in a few minutes instead of the better part of an hour. Billing gaps get caught before the invoice sends, so fewer hours quietly go unbilled.

Who it's for

Solopreneurs, coaches and consultants, and agencies who track time in Harvest and lose billable hours to messy reconstruction. This is a self-install kit you run yourself with your own AI agent, built for Claude Cowork first.

What's included

Skip building from scratch. No coding. You get the complete kit your own AI agent reads, sets up, and runs for you, step by step:

• A Start Here guide, so you know exactly what to open first
• The agent install instructions, the part that lets your own AI agent stand the workflow up for you
• A guided setup that interviews you about your business, so the workflow fits how you actually work
• Workflow Briefing: the plan, the inputs, and what done looks like
• Task List your agent follows to build it
• MCP Connection Guide for the tools involved
• Tool Setup notes for accounts, keys, and permissions
• Prompt Library, including the ready-to-run prompt for this workflow
• Troubleshooting and maintenance guide for the common snags
• A Next Steps and Roadmap, so you know what to automate next once this one is running
• A Run Guide you keep, so you can run it any time with no setup again

It's a small kit, and it earns its keep on repetition: run it every billing cycle and the prep hours you save, plus the hours you stop leaving unbilled, add up fast.

What you'll need (not included)

The kit is the workflow, the prompts, and the setup guide. You bring your own Claude with a Cowork account and your own Harvest account, which works on Harvest's free tier for single-user use.

You'll also need your Claude account on Cowork's Pro plan or higher, so your agent can connect your tools and use the most capable model while it installs the workflow.

Not on Claude? The kit is plain files that describe what to achieve rather than which buttons to press, so a capable AI agent on another platform, like ChatGPT Work, can follow the same steps. If anything doesn't map to your setup, email support and we'll get you working.

How to install this kit

Open your agent in Claude Cowork and point it at your kit files. Connect Harvest at claude.com/connectors, grant read access to your workspace, then run the prompt to generate your first time summary. For the full picture, see How Self-Install Kits Work.

Install once, not every month

This is a billing workflow you own, not another monthly tool stacked on top of the one you already pay for. Install it once and run it every cycle for as long as you invoice. Add it to your cart, open it in Claude Cowork, and send your next invoice from what you actually tracked.