metric client baseline_tokens permanent_context_tokens claude 4029 permanent_context_tokens codex 2603 instruction_tokens claude 1479 instruction_tokens codex 1479 skill_metadata_tokens claude 2550 skill_metadata_tokens codex 1124 rule_catalog_tokens claude 28036 rule_catalog_tokens codex 8058 agent_metadata_tokens claude 126 agent_metadata_tokens codex 52