Worked on the openclaw/openclaw repository to address a critical configuration issue affecting Slack groupPolicy inheritance in multi-account environments. Focused on backend development and configuration management, the solution involved migrating the defaulting logic for groupPolicy to the provider-level schema using TypeScript and Zod for schema validation. This change ensured that all accounts consistently inherited the top-level channels.slack.groupPolicy, preventing per-account allowlist overrides and reducing the risk of misconfiguration. The update improved multi-tenant reliability and minimized support interventions by aligning configuration behavior with design goals, demonstrating a methodical approach to schema design and robust multi-account architecture within the codebase.