CapExchange is a psychosocial rehabilitation programme based on reciprocal exchange of capacities and services between service users and their community environment, grounded in the concepts of circular mutuality and micro-social contribution. This pilot feasibility study aims to assess the feasibility and acceptability of the programme within the Psychosocial Rehabilitation Service of the EPSM de la Guadeloupe, across three sites: the Unité Passerelle, the CATTG Doubs, and the UREPS outpatient unit. A sample of 10 to 15 adult service users with a stabilized mental disorder is targeted. The intervention comprises five weekly group sessions of 75 minutes. Primary measures include the Social Contribution Score (SCS) and the Warwick-Edinburgh Mental Well-being Scale (WEMWBS).

Inclusion Criteria:

• Adults aged 18 years or over
• Stabilized mental disorder (no acute episode in the 3 months preceding inclusion)
• At least one identifiable practical skill exchangeable in a community context
• Free and informed consent to participation

Exclusion Criteria:

• Severe clinical instability at the time of inclusion
• Uncontrolled risk behaviour in social interactions
• Documented inability to engage in a reciprocity-based framework
• Opposition from legal guardian for service users under legal protection'

Individual participant data will not be shared given the pilot and feasibility nature of this study and the small sample size.