Developer's PR Bot Ran 1,785 Agent Sessions in Five Days

A developer's automated PR reviewer ran 1,785 agent sessions against real pull requests in five days, per a July 25 field report on dev.to.

The stakes are cost, not proof of concept. A five-cent triage agent screened each session. Only the runs that turned up something real moved to a fifty-cent specialist fixer, keeping most of the 1,785 sessions cheap.

The tool itself, a PR-babysitter, runs a five-state machine with 30-second polling. The same author ran a second job: five chained workflows and 208 subagents worked through roughly 600 archived sessions, 8GB of transcripts. The pass took two hours and fifty-three minutes and produced 1,883 findings, merged into 221 patterns. Eleven editor agents then used those patterns to rewrite the author's own skill library.

The report also restates an earlier data point: 64 Claude agents turned 535,496 lines of Zig into a 1,009,272-line Rust diff in eleven days. The bill ran to roughly $165,000. That project ran on a six-figure budget across 64 agents, a scale the PR-babysitter's nickel-and-dime triage split doesn't need.