D-2.9 · daily premium briefing.

Top-100 trending articles for the day, stitched into a single audio artifact (or returned as an ordered audio_url list when the stitch infra isn't available — see app/audio_stitch.py). x402-gated; default price 100_000 USDC micros ($0.10), override via BRIEFING_DAILY_PRICE_MICROS.

Revenue split on settled payment:

• 70% across the day's publishers, weighted by article count in the briefing (the more of your stories made the cut, the bigger your slice)
• 20% to the calling agent's recommender_address (when an sf_live_… key was presented); folds into platform when absent
• 10% (or 30% w/o agent) → platform

Errors NEVER eat the payment: if ledger insertion fails after the facilitator confirmed settlement we log loudly, ping operator_alerts, and return 500 so the listener-side wallet keeps the dispute open.