Configure bundler build

Configure bundler build in JavaScript — with the four heights of help laid out: do it now, make it easier for the next person to accept, work out the right move when you are stuck, and learn the pattern so it stops coming back.

4prompt heights
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The four heights

The same task, four distances: today's deadline, the next reviewer, the stuck moment, the pattern.

Execute — do the immediate task

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We need a reproducible production build today. Configure the bundler so it produces a single…
We need a reproducible production build today. Configure the bundler so it produces a single production bundle per entry with deterministic filenames, includes hashed assets for caching, generates source maps, performs tree shaking, and fails the build on unresolved imports. Document the exact build command our CI will run and the output paths for deployment.

Improve — make it easier to accept

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Before I hand the bundler config to operations, make it easier for a reviewer to validate. Show…
Before I hand the bundler config to operations, make it easier for a reviewer to validate. Show where vendor code is split from app code, surface the largest modules and why they aren’t tree-shaken, list the file name patterns and cache headers we should use, and point out any long-running plugins that slow CI.

Decide — diagnose the stuck moment

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My local production bundle is 1.2 MB but CI produces a 2.8 MB bundle with identical source.…

CI artifacts differ from my local build

My local production bundle is 1.2 MB but CI produces a 2.8 MB bundle with identical source. Deployments started failing because cache headers changed. I suspect a missing plugin or different node resolution in CI. I don’t know what exact config divergence to look for. What are the most likely causes and the precise checks to run to pinpoint the difference quickly?

Become — change the pattern

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Every project lands its own slightly different bundler config and we lose time debugging subtle…

Config drifts across projects and teams

Every project lands its own slightly different bundler config and we lose time debugging subtle differences across teams. Builds behave differently in staging and prod and on developers’ machines. What consolidation or habits should we adopt so configs are consistent, easy to audit, and faster to update across repositories?

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Other programming language work people do in JavaScript.

Every task here came from the work, not from a feature list — which is why the prompts name what you want done and never the button that does it. The tool changes; the work does not.
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The rest of the map

Same library, five ways in.