Researched "OpenCode Senses" (Reddit r/opencodeCLI, itsmeadarsh2008/opencode-senses): vision plugin for OpenCode, 13 senses_* tools, local Moondream 2. DEAD END on this machine — requires NVIDIA Ampere+ GPU or Apple Silicon (6GB VRAM); OptiPlex 7020 has only Intel HD 4600 iGPU, PCIe x1.
Decision: opencode-vision (PyPI) instead — pure Python stdlib MCP server, 3 tools (vision_describe/vision_ocr/vision_analyze), Gemini free tier + local PaddleOCR.
User approved: backup opencode.json.n + inline GOOGLE_API_KEY in MCP env block.
Plan saved to vault/wiki/OpenCode Vision Setup Plan.md for FUTURE install (user must still create the free AIza... key at aistudio.google.com).
User's "Share client ID/secret" paste was a bad paste — disregarded.