Field notes on building with coding agents

How we drive the agents that build our software.

Build logs, design notes, and hard-won failure modes from AgentGem — the loops that keep a coding agent on-rails, the guardrails that catch it when it drifts, and the parts worth stealing for your own repo.

Building AgentGem with Claude Code

An empty repo to a public, npm-published product in eleven days, mostly driven through a coding agent. Less a launch story than a field manual for how to steer one.

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