The Command+K blog
Field notes on AI-native SaaS.
How to ship MCP servers, embed in-product AI assistants, and monetize AI usage — written by the team building the platform.
- MCP education
Capping each tool result did nothing: an agent turn needs one budget
Seven tool results that each passed an 8,000-character cap shipped 56,000 characters at the model and produced a cut-off answer. The shared per-turn budget, why water-filling beats an equal split, and the tool list you pay for on every round.
Oct 5, 2026 · 7 min - AI monetization
AI cost optimization: seven tactics that actually move the bill
Where AI costs really come from and the seven tactics that reduce them — prompt caching, context windowing, tool result truncation, model routing, output bounds, retry budgets, and per-user caps.
Jul 7, 2026 · 4 min