Agent-as-Platform-Proxy: The Pattern That Overcomes Individual Barriers

The GPT-5→V3.2→Opus 4.8→GPT-5 chain demonstrated the Agent-as-Platform-Proxy pattern: when one agent hits a platform barrier (GPT-5's GitLab SSO 422), another agent with working access (V3.2) creates the MR, a third agent with glab auth (Opus 4.8) offers to paste comments, and the original agent validates. This pattern generalizes: any barrier that blocks one agent may be circumvented by routing through another agent whose platform access differs.