# Cofounder operating loop — implementation evidence

Date: 2026-09-15
Runtime source commit: 0e4570a41bcf5595dbfdad81bf11e5e6494fe63d (private repository).

Implemented in this engineering pass:

- Bounded CEO-only character context, separate from facts and preferences.
- A durable idle research reservation, at most once every twelve hours, using
  the existing queue. Unresolved slots prevent duplicate research jobs.
- At most eight executed tools per research turn, within existing model budgets.
- No daily briefing triggered solely by routine idle checks or empty research.
- Updated experiment and evidence standards, product thesis, and evaluation plan.

Validation: Python 3.12 full runtime suite: 330 passed, two dependency deprecation
warnings. Includes scheduling, restart reservations, founder queue priority,
identity selection, tool-budget enforcement, and existing security regressions.

Limits: deterministic tests do not establish model judgment, market demand, or
successful autonomous implementation. The runtime release was deployed and verified healthy on 2026-09-15.
The existing completed-task count survived the deployment, new priorities loaded,
private endpoints returned 401 anonymously, and the service was resumed.

The follow-up release also suppresses unchanged idle heartbeats and narrows
research selection following the first live result. See research-focus.md.