Cost Estimate

The skill

Estimate what a codebase, branch diff, or single commit would COST to build — evidence-driven, not a guess: measure the real scope with the helper scripts (LOC counter + git session analyzer), classify every source line into one productivity bucket, run the cost calculator for engineering hours, organizational overhead, calendar and team-cost views plus Claude ROI, and sanity-check the effective lines/hour — runs as a forked analysis workflow with its own reasoning budget, isolated from the main flow. Keeps raw engineering hours separate from overhead and team multipliers, never presents a number without scope, assumptions, and a confidence level, and never claims region-specific market rates unless the user asked and that research was actually done. Use when the user asks to estimate development cost, effort, engineering hours, or ROI.

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