[deep-report] Refactor `extractAllImportFields` (508-line function in pkg/parser/import_field_extractor.go)

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Context

Identified by DeepReport intelligence briefing 2026-05-12 (Repository Quality report #31693).

pkg/parser/import_field_extractor.go is 1,127 lines and contains a single 508-line function — extractAllImportFields — that handles YAML parsing, validation, schema defaults, input substitution, and observability extraction all in one place. This is the most critical offender across the 211 Go files (57% of pkg/) currently exceeding the documented 300-line hard limit from AGENTS.md.

Expected Impact

• Brings the worst-offender file into compliance with AGENTS.md 300-line limit
• Improves test coverage targeting (a 508-line function with one test exercises minimal branching)
• Reduces cognitive load for future contributors
• Sets a refactoring precedent for the other 210 oversized files

Suggested Approach

• Identify the natural seams: parse → validate → defaults → substitution → observability
• Extract each phase into its own well-named function (~100 lines each)
• Run make agent-finish after each extraction to leverage the 2.1× test-to-source ratio
• Keep the public API stable; this is an internal refactor

Suggested Agent

Sergo or any Go-capable coding agent.

Estimated Effort

2 hours of agent time (per the report's own sizing).

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Source: DeepReport 2026-05-12 #aw_dr3

Generated by DeepReport - Intelligence Gathering Agent · ● 9.5M · ◷

• expires on May 14, 2026, 3:42 PM UTC

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