The SPI is a brief, evidence-based suicide prevention intervention for youth and adults that can be delivered by diverse providers.

The CIPP-A is a brief suicide prevention intervention for youth and adults that can be delivered by diverse providers and has been adapted for autistic youth.

The Safety Planning Intervention (SPI) is leading, evidence-based intervention that manages risks associated with suicidal thoughts and behaviors in youth. The SPI is delivered by providers to youth and their parents/guardians and focuses on teaching the family a series of safety planning steps to keep youth safe as they experience suicidal thoughts and/or behaviors. The SPI can be delivered by providers to families in person or virtually during clinic visits, and shows effectiveness in increasing child safety. Further, the SPI is a flexible intervention that can be delivered by a variety of healthcare professionals (e.g., pediatricians, social workers, nurses, etc.). The SPI has been found to be effective when delivered in emergency, inpatient, and outpatient settings; in this study, the SPI will be delivered by providers in Developmental-Behavioral Pediatric (DBP) settings.

The feasibility of SPI and CIPP-A will be assessed by an online survey of the number of times that providers used SPI/CIPP-A with autistic patients in 6 months. Higher scores indicate greater feasibility and use of SPI/CIPP-A (i.e., better outcome).The survey will be administered three times from baseline to 6 months.

The Acceptability of Intervention Measure (AIM) will be administered to providers to assess perceived acceptability of SPI and CIPP-A. The AIM is a widely used measure of the extent to which stakeholders believe an intervention is satisfactory in a given setting (e.g., "I like SPI"). The AIM items are scored on a 5-point scale (1, completely disagree to 5, completely agree), with total scores ranging from 5-25. Higher scores indicate greater acceptability (i.e., better outcome). The AIM will be administered three times from baseline to 6 months.

A series of visual analog scales (VAS; 0-100%) will be used to measure changes in providers' confidence in managing patient crises over the study, with total scores ranging from 0-100. Higher scores indicate greater effectiveness (i.e., better outcome). The VAS will be administered three times from baseline to 6 months.

A secondary outcome measure of the feasibility of SPI and CIPP-A will be assessed by the Feasibility of Intervention Measure (FIM), which assesses the extent to which stakeholders believe an intervention can be delivered in a given setting (e.g., "SPI seems easy to use"). The FIM items are scored on a 5-point scale (1, completely disagree to 5, completely agree), with total scores ranging from 5-25. Higher scores indicate greater feasibility (i.e., better outcome). The FIM will be administered three times from baseline to 6 months.