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HarnessAgent

Vercel's HarnessAgent now accepts image inputs across all harness adapters
For developersOctober 27, 2026

Vercel's HarnessAgent now accepts image inputs across all harness adapters

Vercel's AI SDK HarnessAgent layer now accepts image inputs across every harness adapter. Developers can pass images together with text using the standard AI SDK message…

Vercel's fx adapter now runs the AI SDK harness on the host, not in the sandbox
For developersOctober 27, 2026

Vercel's fx adapter now runs the AI SDK harness on the host, not in the sandbox

Vercel has rewritten the fx adapter for the AI SDK's HarnessAgent so that the harness and model requests run in the same process as the application. Filesystem and shell…