It closes with three practical guardrails for Rails teams running coding agents: keep provider keys out of the sandbox, default-deny egress, and grade outcomes the agent cannot rewrite.
It closes with three practical guardrails for Rails teams running coding agents: keep provider keys out of the sandbox, default-deny egress, and grade outcomes the agent cannot rewrite.
DHH opened Rails World 2026 by announcing that 37signals has stopped writing routine code by hand, with HEY being rebuilt as six native apps plus a Rust mail backend, and a call for every app to ship a CLI...
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It closes with three practical guardrails for Rails teams running coding agents: keep provider keys out of the sandbox, default-deny egress, and grade outcomes the agent cannot rewrite. DHH opened Rails World 2026 by announcing that 37signals has stopped writing routine code by hand, with HEY being rebuilt as six native apps plus a Rust mail backend, and a call for every app to ship a CLI so users can bring their own agent.
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