builder-skills

build-metric-tree

Decompose a top-line metric into a quantified metric tree with mathematical relationships, size each node, and identify where the real leverage is. Use when a PM needs to understand what drives a metric, where to focus, or where NOT to focus.

create-chart

Creates Amplitude charts from natural language descriptions, handling event selection, filters, groupings, and visualization choices. Use when you know what you want to measure but prefer not to build the chart manually.

analyze-dashboard

Deeply analyze Amplitude dashboards by analyzing key charts, surfacing top areas for concern and takeaways, identify anomalies, then explain changes using customer feedback trends.

mom-test

Plan and evaluate customer conversations using The Mom Test — ask questions that even your mom can't lie to you about. Use when preparing for user interviews, evaluating research quality, or designing questions that extract real signal instead of polite lies.

good-strategy-bad-strategy

Evaluate or develop strategy using Richard Rumelt's kernel of good strategy — Diagnosis, Guiding Policy, and Coherent Actions. Use when you need to cut through vague strategic plans and get to the hard choices, or when you suspect your "strategy" is actually just a list of goals.

update-knowledge-base

Cross-reference recently shipped tickets against your help center and changelog to detect outdated articles, missing documentation, and undocumented features. Suggests updates and writes draft copy where possible. Use after each release or on a weekly cadence.

diagnose-acquisition

Diagnose where users come from, measure channel efficiency, identify organic vs. paid mix health, calculate CAC by segment, and find the highest-leverage acquisition channels. Use when a PM needs to understand acquisition economics, optimize channel mix, or figure out why growth is stalling at the top of the funnel.