Claude Code deep dive: 33 new fields, cost tracking, and breaking schema changes
duqaxxx · reddit · 2026-08-31
An analysis of Claude Code logs reveals 33 new fields and 4 line types in 8 days, including cost-state tracking and thinkingtokens details. The post highlights breaking changes like the addition of an 'origin' field for custom commands and the removal of the 'endturn' marker for subagents in v2.1.251, offering a logic-based fix for parsing subagent output.
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