{"version":"2.1.286","anchor":"misc-new-telemetrylog-names","canonical_anchor":"misc-new-telemetrylog-names","heading":"Several new internal log and event names","tier":"internal","area":"Telemetry","url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286\/e\/misc-new-telemetrylog-names","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.286","markdown":"### Several new internal log and event names\n\nClaude Code gained a few new internal names for logging and events, tied to model lists, prompts, MCP images and Chrome tab groups\n\n**Unclear.** What reads these new names, and what they lead to, is not known.\n\n**What**\n\nClaude Code gained several internal names that it uses when recording what happens:\n\n- `model_catalog_startup_notice`, added to a list of event names about the list of available models.\n\n- `prompt.compose`, added to an allowed list next to `prompt.section`.\n\n- `loggedMcpImageBlank`, a new marker in the worker client.\n\n- `setChromeTabGroupKey`, a new way to set a key for Chrome tab groups.\n\n**Why**\n\nNone of these changes anything you do directly. They are small signs of features still in progress.\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5"}