{"repo":"mihneaptu/opencode-fusion","free":true,"listed":false,"github":"https://github.com/mihneaptu/opencode-fusion","clone":"git clone https://github.com/mihneaptu/opencode-fusion.git","description":"Main agent plans and reviews; cheaper sidekick edits. Devin Fusion pattern for OpenCode","language":"JavaScript","stars":213,"topics":["ai-agents","ai-coding","model-routing","multi-agent","opencode","opencode-config","sidekick","devin-fusion","claude-code","codex"],"license":"MIT","category":"ai-agents","readme_excerpt":"opencode-fusion A minimal, working multi-model team for opencode: a main agent that plans and reviews but cannot edit files , delegating every change to a cheaper, faster sidekick . Inspired by the Devin Fusion \"sidekick\" pattern from Cognition. The main agent's file editing is mechanically denied. Its only way to change a file is to hand a spec to the sidekick. That keeps frontier intelligence on the decisions that matter (the plan, the interpretation of ambiguity, the review) while a cheap model does the mechanical work. Cognition reports the pattern holds frontier-level quality at roughly 35% lower cost on their own FrontierCode benchmark, and in a July 2026 follow-up measured a Fable 5-led setup at 54% below pure Fable 5 with near-identical quality: cheaper in absolute dollars than an Opus 4.8-led setup, despite Fable's 2x per-token price. The main pair is backed by read-only helpers ( explore , research ) and optional specialists ( design , reviewer , vision ), each on a model you choose. See the full team. Quick start • How it works • Setup • Customize • FAQ • Troubleshooting Demo https://github.com/user-attachments/assets/6d9e96e2-654a-4bc4-82af-3c3f1a8bde91 One full delegation cycle in 38 seconds: the main agent plans, hands a spec to the sidekick, reviews the returned diff, and verifies the result, without ever touching a file itself. Quick start Install the setup skill globally, then let opencode configure everything conversationally: The installer needs Node 20.12 ","default_branch":null,"files":null,"tree":[],"storefront":"/r/mihneaptu","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/mihneaptu/opencode-fusion/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}