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Field notes from the spec layer.

Short, opinionated pieces on spec-driven AI engineering, the BMAD pack, MCP, and what we're learning shipping with coding agents in production.

latest8 May 20267 min read

claude
claude-code

Why Claude — and Claude Code — build specs best

We've shipped packs to every frontier coding agent on the market. We keep coming back to Claude. Here's the honest reason — and how Claude Code closes the loop from sealed spec to merged PR.

Read the piece

5 May 20267 min

The BMAD pack: what we ship to your coding agent

Eight planning files plus per-story implementation, sealed and signed. Here's the anatomy — and why we settled on this exact shape.

bmad
mcp
agents

26 April 20266 min

From a Lovable mockup to a sealed plan

How we use AI prototyping tools as evidence inside the spec — instead of treating them as throwaway sketches that someone has to retype into Linear.

workflow
mockup-to-spec
lovable

17 April 20265 min

Why your AI coding agent keeps shipping the wrong thing

It isn't the model. It's the brief. We've been building agents and starving them of the one thing they need to do their job — a contract.

spec-driven
agents
manifesto

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