MCP standardizes how tools and context are exposed to models, but reliable agent systems still depend on orchestration, policy, durability, observability, and approval-driven runtime design.
A practical reference blueprint for an agent harness, grounded in the live harness-engineering repo and updated with a real blueprint export instead of an imaginary architecture diagram.
A practical look at small multi-agent systems after adding explicit planner→executor→reviewer handoffs to the live harness-engineering demo.
A practical look at human-in-the-loop design in the live harness-engineering demo: approval as explicit workflow state, not a chat courtesy, plus a new pending-action inspection surface for operators.
A practical look at memory architecture in the live harness-engineering demo: separating working context, durable session state, and retrieval memory instead of calling everything memory.
Checkpointing, approval-safe pause/resume, and replay-friendly run history are what turn an agent demo into an operational system. A practical look at the live harness-engineering repo after adding persisted run …
A practical look at orchestration patterns for agent systems, grounded in the live harness-engineering demo after adding workflow graph export for its approval-gated runner.
A practical teardown of the live harness-engineering demo: runner, tool registry, persistent state, CLI surface, provider boundary, and traces—and why those parts matter more than agent theater.
