Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Context WindowArea: what it touches
Internal ChangesKind: in v2.1.260,
Internal ChangesSection of the release
The options built for the get_context_usage control-protocol subtype no longer include appendSubagentSystemPrompt alongside appendSystemPrompt and systemPromptSnapshot. Context-usage and token estimates reported to embedding hosts no longer account for the subagent system-prompt append when sizing context. The appendSubagentSystemPrompt setting itself is unaffected and still used elsewhere, including when building actual prompts; this is a scoped change to the usage-estimation path only.
