agents.defaults.contextPruning.mode invalid input

[hoary juniper]

After update to 2026.1.22

[neat coyote]

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[fallen forum]

The issue is a breaking change in 2026.1.22. The old modes adaptive and aggressive are no longer valid.

Valid modes now:

• "off" - disabled
• "cache-ttl" - new TTL-based pruning mode

Fix your config:

{
  agents: {
    defaults: {
      contextPruning: { mode: "cache-ttl" }  // or "off" to disable
    }
  }
}