Precon Sizing System

Summary

The precon sizing system derives early commercial understanding from the published project corpus.

Problem

Sizing needs more than a document download. It requires selected evidence, indexing, assumptions, snapshots, quality checks, and repair paths when the corpus is incomplete.

Principle

Treat sizing as a replayable operational product with snapshots, not as a one-off LLM answer.

Platform Shape

Sizing services and preview/benchmark jobs build and evaluate opportunity sizing outputs. Benchmark documentation records quality progress and preserves the rationale for the current sizing phase.

Source Evidence

  • docs/domains/preconstruction.md
  • services/precon/sizing
  • jobs/precon/preview_opportunity_sizing
  • docs/reference/precon-sizing-phase-9-benchmark.md
  • docs/engineering/reference/ocr-and-llm-services.md
  • docs/engineering/concepts/registry-and-prompt-versioning.md