making the numbers work - lately, with a fleet of AI agentshttps://sanchal.me/https://sanchal.me/writing/agents-are-the-primary-customer/https://sanchal.me/writing/agents-are-the-primary-customer/The best new infra companies sell to software, not people. Chosen once by an agent, used indefinitely.Wed, 15 Jul 2026 00:00:00 GMThttps://sanchal.me/writing/model-routing-rubric/https://sanchal.me/writing/model-routing-rubric/Model choice is a P&L decision. The rubric I use to route every task to the cheapest model that clears the bar.Wed, 15 Jul 2026 00:00:00 GMThttps://sanchal.me/writing/the-pnl-lens/https://sanchal.me/writing/the-pnl-lens/Start from the number that has to move, then decide what AI is worth building. Not the other way around.Wed, 15 Jul 2026 00:00:00 GMT