Open sourceOpen-source releaseMLOps, Tooling & Infrastructure · Safety & Alignment · Efficiency & Inference1 source · Oct 21, 2026

Vercel Open-Sources durable-harness for Crash-Proof Coding Agents

Vercel has released durable-harness, an open-source package that keeps coding agent sessions alive through crashes and timeouts.

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Key points

  • Vercel durable-harness wraps existing harnesses, including Pi, OpenCode, Claude Code and Codex, without changing them.
  • Each session lives in a durable log.
  • Runs on: Vercel Functions plus Vercel Queues, Node.js 22+ with Postgres, or laptop files.
  • durable-harness is a set of adapters from Vercel that store a harness session in a Workflow SDK World.

Sources (1)

  • [1]Vercel Open-Sources durable-harness for Crash-Proof Coding Agents
    MarkTechPost · Oct 21, 10:15 PM
    Vercel has released durable-harness, an open-source package that keeps coding agent sessions alive through crashes and timeouts.
    Vercel durable-harness wraps existing harnesses, including Pi, OpenCode, Claude Code and Codex, without changing them.

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