Agents can now not only rewrite their memory, but also rewrite the execution code they run in (the harness) through Mods. Mods (inspired by Pi's extension system) allow for harness-level changes like: - modifying context - injecting custom tools - customizing the statusline
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Introducing Agent File (.af) 👾 - an open file format for importing/exporting agents. With .af, you can reproduce an agent (with the same behavior and memories) without any setup or scripts: simply load the .af into your Letta server or Letta Desktop: