AI SDK Harness Pi 1.0.170 changes where sessions and project context live

Harness Pi 1.0.170 stops mirroring the sandbox workspace to the host and no longer discovers AGENTS.md, CLAUDE.md or project skills from that mirror; callers must pass project context in instructions and list existing skills in resources.skills. Session entries now live in lifecycle data or optional append-only storage. A lifecycle state recorded before this version can resume as a fresh session and drop a pending tool batch. Drain or migrate suspended sessions before upgrading, then suspend and resume a conversation that has a pending tool call and verify its history and parent chain. ⁵

Relevant to: AI SDK teams using Pi lifecycle persistence, sandbox project context or deferred tools.