Shawn Mervin

Build log

One developer and a fleet of Claude Code agents, building and running a multi-tenant SaaS (Rental Pilot) on web, mobile and desktop in production. These are the real numbers, regenerated every hour from git and the agents' own logs.

Counts only: no code, no commit messages, no customer data.

Right now

connecting…
–agents working in the last 15 minutes

      Pushed over an API Gateway WebSocket the moment an agent acts. Each event comes from a Claude Code hook on my machine and carries four things: what happened, the tool's name, which product the work is in, and a six-character hash of the session. No code, no file names, no prompts.

      Agents working right now — as of the last hourly run
      Commits, 12 months— 
      Paired with an agent—commits carrying a Claude co-author line
      Agent sessions—including subagents
      Tool calls—shell, file edits, browser, database
      Tokens processed—input, output and cache
      Peak parallel agents—most sessions open at once

      Every day of the year

       

      Where the commits go

        What the agents do

          Which models

          Share of all model responses.

          How this page is made

          infra/fleet-stats.py

          A short script on my own machine reads two things: git log across the repos, and the Claude Code transcripts the agents write as they work. It counts, and it throws the rest away. What gets published is one JSON file of numbers, copied to S3 behind the same CloudFront distribution as this page. No code, no commit messages, no file names, nothing a customer typed.

          Commits are mine only: other people's commits in the same repos are left out, so "one developer" stays literally true. A commit counts as paired when it carries a Claude co-author line. Agent sessions include subagents, which is how one session fans out into several working at once. Claude Code keeps transcripts for a limited time, so the agent numbers start later than the commit history does.

          • Claude Code
          • git
          • S3
          • CloudFront

          Got an operation that's outgrown its spreadsheets?

          Tell me what your business does and where it's jamming up. If I'm not the right person for it, I'll say so and point you somewhere better.

          What to send, and what happens next