Company headcount growth

The insight: a growth percentage is a trajectory claim built on three silent assumptions — right entity, meaningful denominator, and a window that isn't hiding a reversal — and the bare action returns a confident number when any of them is wrong. +40% over 12 months can mean a 3-person company hired one engineer, a different company than the one you asked about, or a real grower that started shrinking last quarter. And the action's miss is success-shaped AND billed: an empty result costs the same credit as a hit. This skill wraps one cheap action with the checks that make its number safe to act on.

Declared inputs

Nothing here ships with a value. Each one is the installer's, not the author's: ask for it, never substitute a plausible default, and where an answer does not exist say which step becomes unavailable rather than guessing. Where a default IS defensible it is named below, and using it means saying so in the output.