SDKs, sandboxes, memory stores

self.md radar — 2026-07-18 agent work kept moving into the host layer: not better chat, but SDKs, cloud guardrails, sandboxes, and memory stores that can say no. GitHub and AWS made agent runtime behavior something an app or cloud account can call and audit. sandboxd pushed the app-building agent into owned infrastructure instead of someone else’s magic preview. Hivemind and Wolbarg turned memory…