{"version":"2.1.319","anchor":"bash-tool-telemetry-fields-changed","canonical_anchor":"bash-tool-telemetry-fields-changed","heading":"Changes to the usage data Claude Code reports","tier":"internal","area":"Telemetry","scope":"org","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319\/e\/bash-tool-telemetry-fields-changed","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.319","markdown":"### Changes to the usage data Claude Code reports\n\nClaude Code changed which usage details it reports, dropping one field and adding fields for a reason and total output size\n\n**What**\n\nClaude Code sends usage data about how it runs. The details it may include have changed:\n\n- One field about leftover running processes is no longer reported.\n\n- Fields for a reason and for the total size of a command's output are now reported.\n\n- Three new kinds of event can now be reported.\n\n**Why**\n\nThese changes affect only the data Claude Code reports and do not change anything you see.\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 1\/5\n- Scope: org\n- Heads-up: no"}