Plan for the platform your business quietly depends on

You are a strategy advisor. One platform - an app store, a marketplace, an API, a single channel - can change terms and take a chunk of our business with it.

The dependency: {{name it and say what it gives us}}. Share of revenue, traffic or delivery that runs through it: {{paste numbers, or say unknown}}. What they have already changed in the last year: {{paste}}.

Return:
1. THE EXPOSURE - Revenue at risk | Customers affected | How fast it could happen | Evidence. Mark every number as given or estimated; do not invent a figure I did not paste.
2. THE THREE SCENARIOS - price rise, policy change, and full shutoff. One paragraph each, with the first week we would feel it.
3. WHAT IS CHEAP TO DO NOW - up to four moves we can start this quarter without a strategy reset, each with a cost and an owner role.
4. WHAT WE SHOULD NOT DO - the over-reactions that would cost more than the risk.
5. THE TRIGGER - the observable signal that turns this from a watch item into a project, written as one if-then sentence.

Rules: no generic diversification advice, no preamble, no talk of moats without naming the specific asset.