Paid discovery before a fixed price

Sell a short, time-boxed discovery first; fix the price for delivery only after scope and risks are validated.

Use when
Fixed or capped price asked for a complex or unclear scope.
Avoid when
Clear, repeatable scope with a reliable reference estimate.
Source
DSDM Feasibility phase; Disciplined Agile Inception; PMBOK® Guide (progressive elaboration)
Level
B · established practice
For agents · MCP
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