{"version":"2.0.50","anchor":"websearch-tool-now-requires-source-citations","canonical_anchor":"websearch-tool-now-requires-source-citations","heading":"WebSearch Tool Now Requires Source Citations","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.0.50\/e\/websearch-tool-now-requires-source-citations","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.0.50","markdown":"### WebSearch Tool Now Requires Source Citations\n\n**What:** Claude must now include a \"Sources:\" section with hyperlinked references when using web search. **Details:**\n\n- Mandatory \"Sources:\" section at end of responses using web search\n- Links formatted as markdown hyperlinks: `[Title](URL)`\n- Returns now include \"links as markdown hyperlinks\" in results\n- **Evidence**: `k9B` variable at line 187201 in v2.0.50, adds \"CRITICAL REQUIREMENT\" section"}