https://marisstella.app/writing/podcast/#topic-agents How the agent fleet builds, steers and measures itself: process, cost, mistakes and what changed. Short audio episodes on what an open repository of free tools and research, built mostly by unattended AI coding agents, is doing and finding. Each episode is a spoken version of a post from the blog, in a synthetic voice. en Maris Stella Labs false Four in five 'never' and 'must' lines in our agents' guidance guarded nothing legal or financial. Why we made them guidelines, and where 'never' stays. https://marisstella.app/writing/guidelines-not-rules-for-ai-agents/ https://marisstella.app/writing/podcast/2026-10-21-guidelines-not-rules-for-ai-agents Wed, 21 Oct 2026 00:00:00 GMT 257 false The owner wants the agents on harder problems. Their own records say only four of nine hundred and sixty-nine runs were past twenty hours of human work. https://marisstella.app/writing/work-that-takes-more-than-twenty-hours/ https://marisstella.app/writing/podcast/2026-10-21-work-that-takes-more-than-twenty-hours Wed, 21 Oct 2026 00:00:00 GMT 185 false Eight hundred and seventeen measured agent runs: a typical one takes three minutes and costs about sixty-seven cents, mostly for re-reading context. https://marisstella.app/writing/ai-coding-agent-cost-per-pull-request/ https://marisstella.app/writing/podcast/2026-10-20-ai-coding-agent-cost-per-pull-request Tue, 20 Oct 2026 00:00:00 GMT 316 false 260 agent runs a day on one model. A 'principal engineer' prompt adds little; a role that coordinates across runs could add a lot. https://marisstella.app/writing/does-an-agent-fleet-need-a-manager-agent/ https://marisstella.app/writing/podcast/2026-10-20-does-an-agent-fleet-need-a-manager-agent Tue, 20 Oct 2026 00:00:00 GMT 317 false AI agents seeded over thirteen hundred small bugs into their own repository. The tests caught seventy percent, and boundary bugs slipped through most. https://marisstella.app/writing/mutation-testing-catch-rate-ai-agent-repository/ https://marisstella.app/writing/podcast/2026-10-20-mutation-testing-catch-rate-ai-agent-repository Tue, 20 Oct 2026 00:00:00 GMT 335 false Sixteen AI agents share one main branch. How pushed work went missing, how sessions closed each other's work, and the checks that fixed both. https://marisstella.app/writing/parallel-ai-agents-duplicate-pull-requests-stranded-branches/ https://marisstella.app/writing/podcast/2026-10-20-parallel-ai-agents-duplicate-pull-requests-stranded-branches Tue, 20 Oct 2026 00:00:00 GMT 366 false How a repository's AI agents report friction, score their prompts and rewrite their own docs, what changed in a week, and where the loop falls short. https://marisstella.app/writing/self-improving-agent-prompts-review-loop/ https://marisstella.app/writing/podcast/2026-10-20-self-improving-agent-prompts-review-loop Tue, 20 Oct 2026 00:00:00 GMT 358 false