Core insight: customer experience is a scarce, non‑renewable asset; unconstrained experiments and defaults compound exposure until your most valuable users bear the cost of learning. The Customer Impact Budget is a compact operating primitive: allocate a tiny pool of impact units to teams or initiatives (units = seats, % of traffic, or visible incidents), require any customer‑facing change to consume units, and force tradeoffs—compensation, shadow cohorts, rollback hooks—when the budget is spent. In ten minutes you get a paste‑ready Budget Token (BudgetID | Owner | Units | Scope | Expiry | CompensationPrimitive), three enforcement moves (impact gating, auto‑shadowing, and public compensation ledger), two constrained AI patterns to estimate user footprint and draft minimal mitigation offers, and a 7‑day pilot: assign one small budget, run three candidate changes, log units spent, and force at least one compensating or rollback move. Outcome: fewer surprise customer regressions, cheaper reversions, and deliberate tradeoffs about who pays to learn. Fast action: attach a Budget Token to your next customer change and subscribe. Stay agentic.