mnfst/manifest: BYOK Layer to Connect Agents and Harnesses to Any Provider

GitHub·medium signal

manifest (~6,915 stars) is a TypeScript bring-your-own-key layer that connects agents and harnesses to any model provider, abstracting provider-specific plumbing behind one interface. Given the June pricing churn at Copilot and Cursor, provider-agnostic routing is increasingly valuable for cost control and failover. Useful for builders who want to swap or multi-home models without rewriting harness code.