Harness Engineering Series #4: State, Memory, and Checkpoints

A concrete operator guide to state, memory, and checkpoints: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #3: Tool Design for Agent Work

A concrete operator guide to tool design for agent work: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #6: Human-in-the-Loop as Runtime Design

A concrete operator guide to human-in-the-loop as runtime design: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #5: Orchestration Beyond Chat

A concrete operator guide to orchestration beyond chat: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #9: Harness Moats and Middleware

A concrete operator guide to harness moats and middleware: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #8: Observability for Agent Runs

A concrete operator guide to observability for agent runs: what changes, who owns it, how to verify it, and where it breaks.

Harness Engineering Series #7: Sandboxes, Permissions, and Failure Boundaries

A concrete operator guide to sandboxes, permissions, and failure boundaries: what changes, who owns it, how to verify it, and where it breaks.

AI Quality Systems Series #1: AI Quality Is an Operating System

A concrete operator guide to ai quality is an operating system: what changes, who owns it, how to verify it, and where it breaks.

Choose your reading rhythm.

Start with a weekly briefing, add daily notes, or hear only when a durable essay or library update is ready.

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