[Submit] io.github.sandbaseai/sandbase-harness — Stdio MCP bridge for SandBase Harness agents, sessions, turns, artifacts, and cancellation. #3834

MCP Server Submission: io.github.sandbaseai/sandbase-harness\n\nDescription: Stdio MCP bridge for SandBase Harness agents, sessions, turns, artifacts, and cancellation.\nRepository: https://github.com/sandbaseai/sandbase-harness\n**MCP metadata**: https://github.com/sandbaseai/sandbase-harness/blob/main/server.json\n**Latest release**: https://github.com/sandbaseai/sandbase-harness/releases/tag/v0.3.8\n**Container**: ghcr.io/sandbaseai/sandbase-harness-mcp:0.3.8\n\n### Tools\n\n- list_agents — list agents available in the connected runtime\n- create_session — create a managed-agents session\n- run_session — send a message and wait for the streamed turn to finish\n- get_session — inspect session state and usage\n- list_artifacts — list artifacts produced by a session\n- stop_session — stop a running session\n\nThe bridge is designed for local-first, self-hosted deployments and documents the runtime URL and optional API key configuration in the installation guide: https://github.com/sandbaseai/sandbase-harness/blob/main/llms-install.md