Why it matters
Documentation debt compounds. Building culture prevents it from becoming crushing.
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The architecture
Docs-as-code: docs in Git alongside code. Same review + versioning process.
Ship together: PRs that need docs also update docs. Reviewers block on missing docs.
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How it works end to end
Ownership: author of the code writes the docs. Tech writers polish, not create.
Templates: consistent structure lowers writing bar. New feature template, ADR template, runbook template.
Deprecation: prune stale docs as aggressively as add. Old docs mislead worse than missing docs.
Measurement: track doc coverage, staleness, usefulness (feedback).