Unverified50% confidenceCautionExact time
Anthropic's server-side tools (such as web search and computer use) and PDF file parsing are unavailable under this scheme because they run on Anthropic's side; sending these non-standard fields typically returns HTTP 400 (Bad Request).
1
Sources
50%
Confidence
Long-term
Relevance
10/14/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedUsers of third-party Anthropic-compatible endpoints (ANTHROPIC_BASE_URL) have been receiving HTTP 400 on every turn since 2.1.265; the root cause was a regular expression in the Artifact tool input schema being rejected by these endpoints, and the new version has fixed this.64% similarUnverifiedThe requests library is suitable for handling static pages; it retrieves HTML content by sending HTTP requests and has a low barrier to entry.64% similarUnverifiedWeb scraping projects involve using the requests library for HTTP requests, BeautifulSoup for parsing HTML, and file downloading61% similarUnverifiedOOXML规范文档长达6000余页,即便是第三方商业软件如LibreOffice也难以做到100%完美兼容60% similarUnverifiedThe behavior of URL fragments not being sent to the server is established by the RFC 3986 specification, originally designed for in-page navigation.60% similar
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