product · May 16, 2026
Letta Shifts to Client-Side Execution Model with Deprecations of Server Features by Mid-April 2026
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Letta announced its next phase on March 16 2026 focusing on Letta Code as a model-agnostic agent harness with persistent memory. The company deprecated legacy server-side features including tool rules and legacy tools immediately while templates and filesystem deprecate by mid-April 2026. Letta introduced MemFS for git-backed memory, client-side subagents, and skills as the primary packaging method. Letta refocuses on open runtimes independent of single providers.
Spend governor blocked model creation: provider_circuit_open (lane=battlemap, provider=together)