Use when implementing server-side tolerance for Claude Code context-management fields in an Anthropic gateway, including context_management edits, cache_edits blocks, cache references, prompt cache controls, and non-streaming compact requests.
Use when implementing server-side message and content-block compatibility for a Claude Code Anthropic gateway, including messages arrays, system blocks, tool_result pairing, image/document/thinking blocks, cache_control, and tolerant validation.
Use when implementing server-side HTTP request handling for a Claude Code compatible Anthropic API gateway, especially /v1/messages, /v1/messages/count_tokens, /v1/files, /v1/models, headers, body fields, beta handling, and gateway routing.
Use when implementing server-side SSE streaming compatibility for a Claude Code Anthropic gateway, including message_start/content_block_delta/message_delta events, tool_use streaming, stream:false fallback, timeouts, and malformed stream behavior.
Use when implementing server-side tool schema and tool-call compatibility for a Claude Code Anthropic gateway, including tools arrays, tool_choice, tool_use SSE blocks, tool_result messages, deferred tools, MCP-style names, and tool parameter JSON.
Use when implementing a server-side Anthropic-compatible LLM gateway for Claude Code, including /v1/messages, SSE streaming, count_tokens, files, models, tool_use/tool_result, beta headers, and gateway error compatibility.