January 2026 monthly summary for developer performance review. Focus: OAuth token endpoint improvements in supabase/auth to ensure correct authentication method handling per client registration type, with alignment to RFC 7591 and improved interoperability with external OAuth flows (e.g., Claude.ai). What was delivered: - Implemented persistence and enforcement of token_endpoint_auth_method for OAuth clients. - DB schema changes: added token_endpoint_auth_method column (NOT NULL) on oauth_clients with migration defaults based on client_type (confidential -> client_secret_basic, public -> none). - Endpoint behavior improved: new clients persist their registration method; token endpoint validates that the used authentication method matches the registered one; responses return the correct token_endpoint_auth_method. Impact: - Fixes authentication flow failures caused by always returning client_secret_basic; enables correct method negotiation per client type. - Improves security posture and RFC 7591 compliance for OAuth client management. - Enhances interoperability with external OAuth providers (e.g., Claude.ai) and long-term maintainability of OAuth flows. Skills demonstrated: - Database migrations and schema evolution - OAuth2/OIDC protocol understanding and RFC 7591 alignment - Correctness and security in auth workflows - Cross-team collaboration and robust commit hygiene (see commits referenced in PR #2300) Note: The commits include a detailed description of the changes and validation steps to ensure accurate token_endpoint_auth_method handling across client registration and token exchange.

May 2025 – Focused code hygiene and Kubernetes manifest quality improvements in scaleway/docs-content. Implemented a formatting cleanup for the Istio proxy protocol demo manifests, correcting indentation and YAML consistency. The change is non-functional but reduces risk of misconfigurations and improves readability and maintainability of infrastructure definitions across the repository. This work supports smoother contributor onboarding and more reliable demos.