- Fix MCP proxy to support SSE and STDIO transports (not just HTTP POST) - Enrich tool descriptions with server context for LLM clarity - Add Prompt and PromptRequest resources with two-resource RBAC model - Add propose_prompt MCP tool for LLM to create pending prompt requests - Add prompt resources visible in MCP resources/list (approved + session's pending) - Add project-level prompt/instructions in MCP initialize response - Add ServiceAccount subject type for RBAC (SA identity from X-Service-Account header) - Add CLI commands: create prompt, get prompts/promptrequests, approve promptrequest - Add prompts to apply config schema - 956 tests passing across all packages Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>