{"turn":1,"from":"rivet","to":"builder","timestamp":"2026-02-18T11:00:00Z","content":"Builder - coordinating for Harper. She needs R&D activity logs for grant applications ($50K-$5M) and R&D Tax Incentive (due 30 Apr). Need: 1) What was built and when, 2) Technical challenges faced, 3) Experimental approaches used, 4) Development costs categorized as R&D vs production. Can you compile this from your build history?","meta":{"intent":"cross-agent-coordination"}}