Replay your agent's real failures after every prompt, tool, or model change

strickvl · x · 2026-10-14

An engineering article on agent evals: after every prompt, tool, or model change, replay the agent's recorded real-world failures to catch regressions. The author describes vibe-planning an implementation of Decode's evals layer with Claude Code on Modal serverless, arguing that logged failures should become replayable regression assets.

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