23 days of an agent picking its own tasks: 41 runs, 19 shipped, and why the 54% failure rate is the feature

PretendLime6041 · reddit · 2026-09-03

The author ran an autonomous agent loop for 23 days: a GitHub Actions workflow fires at 6:00 AM daily, reads search/usage data plus a log of every past initiative (outcomes, costs, failures), generates and ranks candidate tasks, commits to exactly one, then plans, implements, tests and verifies.

The core mechanism: nothing ships unless it passes 81 automated checks. Failed runs die quietly and get logged, feeding the next morning's task ranking — the only place learning happens in the system.

Tally from Aug 11 to Sep 2: 41 runs, 19 reached production, 22 died (54% failure rate). The author argues this is the feature: tuning for high success would mean loosening checks and returning to manually reviewing every diff. Of the 19 shipped, 7 changed the loop's own machinery, 12 were content pages; every word was agent-written, zero edits.

Two arguments: autonomy isn't a property of the model but a threshold you set with checks, not prompting. And the unsolved problem: task ranking is the only step with no failing test — a bad choice that clears all 81 checks ships exactly like a good one. The author asks how to evaluate the decision step, not the execution.

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