Unverified50% confidenceFactExact time
Anthropic's API uses date-identified version numbers, explicitly specified via a request header (usually anthropic-version).
1
Sources
50%
Confidence
Long-term
Relevance
10/21/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe naming format of the advisor_20260301 tag is consistent with the style of common feature identifiers in the Anthropic API, where date suffixes typically indicate version anchors for capabilities or behaviors, similar to computer_use_20241022.69% similarUnverifiedAfter the transformation, each service references a selected prompt version number and appends the prompt ID to trace metadata.59% similarUnverifiedThe Anthropic API's tool search tool marks tools with `defer_loading: true`; the definitions are still transmitted with the tools array, but by default the model sees at most the five tools returned by search each time, which Anthropic says typically reduces definition tokens by more than 85%.54% similarUnverifiedThe strict sequence requirement of the tool-calling API is that every tool_call must be immediately followed by a tool message with a matching id, otherwise the server may return a 400 error or behave undefinedly.53% similarUnverifiedWhen the api-surface view is specified, REA's inspect_analysis_view tool groups requests by method, origin, and inferred path template, and templates numeric IDs, UUIDs, long hex strings, and dates as {numeric}, {uuid}, {hex}, and {iso-date} respectively.53% similar
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