Most agentic stacks run into the same problems pretty quickly: reasoning and tool parsing drift across turns, KV cache reuse falls apart, or tools fire too late. We’ve been hardening Dynamo’s harness-facing path so @Claudeai Code, @OpenClaw, and @openai Codex-style agent patterns behave reliably on custom stacks and inference endpoints: • Stable prompts for KV reuse and lower TTFT • Interleaved reasoning + tool calls preserved across turns • Streaming tool dispatch instead of end-of-turn buffering • Harness behavior aligned with real multi-turn agent runtimes If you’re building your own agent stack or serving endpoint, this blog goes through the infrastructure issues that tend to show up in practice and the patterns we’ve been using to fix them. Tech blog ➡️