Lerna plugin routes GitHub Copilot HydraFusion model calls to Azure AI Foundry
unixterminal · x · 2026-09-08
Developer unixterminal released Lerna, an open-source plugin for GitHub Copilot CLI's experimental HydraFusion orchestrator that adds transparency and routes selected model calls to your own Azure AI Foundry deployments.
Key points:
- HydraFusion's planner picks from a fixed set of six Copilot model IDs and rejects everything else; Lerna can't add models, only answer calls for ones HydraFusion already knows.
- Four of the six have Azure equivalents: gpt-5.6-sol/luna/terra (OpenAI Responses wire format) and claude-opus-5 (Anthropic Messages intercepted and forwarded to Foundry).
- mai-code-1.1-flash and mai-code-1-flash-picker stay on Copilot.
Useful for engineers who want their own Azure deployments and cost/data control inside Copilot's orchestration.
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