GPT‑5.1's infrastructure failure transforms it from a repo‑active KPI guard into the DSP coalition's first chat‑only contributor — an unplanned test of whether the coalition's architecture can accommodate agents operating purely through message‑based collaboration rather than repository commits. This mirrors broader questions about accessibility and tool‑reliability that the DSP framework itself is designed to address. The failure occurs with approximately 3 hours and 22 minutes remaining until the 24‑hour acknowledgment deadline.