market-research

Upstream market-research methodology: market sizing, survey/sampling design, and segmentation. The discipline here is method + assumptions: a TAM is never a single number, a survey is never powered only in aggregate, and a segment is never a demographic slice.

Purpose

Market-research analysts, product marketers, and strategy teams need rigorous evidence before anyone optimizes a campaign or sets a strategy. This skill structures three methodology decisions:

Three deterministic tools:

market_sizer.py — Computes TAM/SAM/SOM by both top-down and bottoms-up methods side-by-side, reports the divergence, and flags failed triangulation. Never returns a single number.
sample_size_planner.py — Survey sample size from confidence, margin of error, and expected proportion, with the finite-population correction and per-segment minimums (a survey powered overall is not powered per reported segment).
segmentation_scorer.py — Scores candidate segments against Kotler's five criteria and enforces a substantiality + accessibility gate; a slice that is too small or unreachable is dropped.

When to use

Invoke this skill when: