Field guides
Deep, reference-grade documents written after building the thing. Protocols before they are mainstream, methods proven on production workloads, honest about what is simulated and what would break. Bookmark tier or nothing.
AG-UI: Streaming the Interface, Not Just the Answer
A field guide to the agent-user interaction protocol, and what happens when a process engine drives the stream
A field guide to AG-UI, the agent-to-user event protocol: event anatomy, transports, process-orchestrated generative UI, and what it leaves unsolved.
AP2: The Agent Payments Protocol
What I learned making an agent that buys FIFA tickets while I sleep
A builder's deep dive into AP2 v0.2: mandate cryptography, the four-party model, threat model, and Human-Not-Present flows, verified against the spec.
Where Agents Actually Work: Field Notes from 50+ Enterprise Builds
Two years, seven industries, four workflow shapes. A map of where agentic AI earns its keep, and where plain code still wins.
Field notes from 50+ enterprise agentic AI builds: where agents earn their keep, by industry and workflow shape, and where plain code still wins.
The Control Plane: Governing Agentic AI at Scale
Agent frameworks own the inner loop. Someone has to own the outer one.
Agent frameworks own the inner loop. Your institution owns the outer one. A framework-agnostic pattern for governing agentic AI in production.
Evaluating Agentic Systems: The Four-Axis Method
Cost per case, per-field quality, tool-skip rates, and temperature: how to pick a model for an agent that lives inside a governed process
A field-tested method for evaluating process-embedded AI agents: cost per case, per-field accuracy, tool-skip rates, and temperature sensitivity.
Tool Contracts: Why Agents Skip Your Tools
A tool spec is a contract between a deterministic system and a probabilistic caller. Most teams write it for the wrong reader.
Why agents silently skip tools: a failure taxonomy, the spec rules that measurably cut skip rates, and a deterministic 0-100 linter for MCP tool contracts.
A2A: Agent-to-Agent, a Field Guide for Builders
How agents from different vendors, teams, and trust zones actually talk to each other, and how to keep it auditable
A builder's field guide to the A2A protocol: Agent Cards, task lifecycle, orchestration vs swarm, privacy boundaries, and the threat model that matters.