Why the Harness Matters More Than the Model [video]

📋 Developer Action Items

• ☐ Verify the claim on the official Harness Matters Model page (or HN AI Agents), not from this recap alone.
• ☐ Name the surface that moved — API, policy, model, hardware, or commercial terms — before you Slack the thread.
• ☐ Assign one owner a day to read the primary material and decide: this-sprint, this-quarter, or noise.
• ☐ Do not change production on day-one coverage. Watch the vendor changelog and one independent write-up first.