# 4.2.5 RCM Module | Runway Control > RCM doesn't mint tokens; it only determines how much to mint. AI provides recommendations, DAO sets the boundaries. RCM is the sustainable operation prediction hub of the Ark protocol, responsible for real-time calculation of the remaining support days of the Rebase Pool and estimating whether the protocol faces medium to short-term reward resource depletion risks. When system lifespan is insufficient, RCM will issue instructions to the EM module, requesting adjustment of bond minting ratios, achieving synchronized replenishment through users' actual bond purchasing behavior. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ark-defai.gitbook.io/ark/4.-layer-1-or-economic-laws-of-ark-defai/4.2-five-regulation-modules/4.2.5-rcm-module-or-runway-control.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.