{"version":"2.1.302","anchor":"side-queries-now-send-toolnames","canonical_anchor":"side-queries-now-send-toolnames","heading":"More requests now send the list of tool names","tier":"internal","area":"API Requests","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302\/e\/side-queries-now-send-toolnames","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302","markdown":"### More requests now send the list of tool names\n\nSide queries and token-counting requests now pass a `toolNames` field built from the available tools\n\n**What**\n\nTools are the actions Claude can take, such as reading files or running commands. Some requests now include a `toolNames` field, built from the list of tools available.\n\n- Side queries now send `toolNames` alongside `querySource` and `agentContext`. Side queries are requests Claude Code makes apart from the main conversation.\n\n- Requests made by `countTokens` and the sample-count requests now pass a `toolNames` option.\n\n**Why**\n\nThe members do not say what the field is used for. In practice these requests now carry extra information about which tools are available. This may affect request metadata, headers, or how the client is set up for them.\n\n- Area: API Requests\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}