{"version":"2.1.302","anchor":"tool-names-passed-into-api-client-creation","canonical_anchor":"tool-names-passed-into-api-client-creation","heading":"Tool names now feed into request headers","tier":"internal","area":"API Requests","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302\/e\/tool-names-passed-into-api-client-creation","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.302","markdown":"### Tool names now feed into request headers\n\nClaude Code now passes the names of the tools in use to the part that builds headers for its requests\n\n**What**\n\nWhen Claude Code sets up its connection to the model, it now passes along the names of the tools in use. They go to the step that builds the request headers, the extra information sent with each request.\n\n**Why**\n\nThe headers Claude Code sends can now take the set of tools into account.\n\n- Area: API Requests\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}