"What is Mastra's defining contribution?"	Observability as a FIRST-CLASS PRIMITIVE — built into every component's interface from the start, not a wrapper added later. Plus explicit read/write memory tier separation. TypeScript-first.	harness-engineering::dd14::recall
"How does Mastra's observability differ from other harnesses?"	Others use the withObservability WRAPPER pattern (Module 1.4) — observability bolted on. Mastra BAKES IT IN: every component emits structured events natively as part of its contract. Module 10: 5/5.	harness-engineering::dd14::analysis
"What is the 'explicit read/write memory tier separation'?"	Read memory and write memory are SEPARATE interfaces. This makes Module 4.3's write-gating natural — restricting writes is an interface-level decision, not a bolt-on. Cleanest memory abstraction in the roster.	harness-engineering::dd14::analysis
"Mastra scores 34/55 — highest on which module?"	Module 10 (Observability): 5/5 — the best built-in observability primitives. Also Module 4 (Memory): 4/5 — the explicit read/write separation.	harness-engineering::dd14::recall
"Why does the read/write memory separation make write-gating 'natural'?"	Because read and write are ALREADY different interfaces. Restricting writes (the memory-poisoning defense from Module 4.3) is just denying access to the write interface — it's the API design itself, not a policy layer added on top.	harness-engineering::dd14::application
"Name 3 things Mastra does better than any other harness."	(1) Observability as first-class (built-in, not wrapped). (2) Explicit read/write memory separation (cleanest abstraction). (3) TypeScript-first DX (best TS SDK experience).	harness-engineering::dd14::recall