tengu_api_query messageLength Telemetry
- Entity ID:
ent-20260419-a011f2a3b4c5 - Type:
concept - Scope:
shared - Status:
active - Aliases: messageLength field, per-turn context telemetry
Description
Analytics call tengu_api_query transmits messageLength — the JSON-serialized byte length of the system prompt, all messages, and all tool schemas — on every API call. Gives Anthropic fleet-wide per-turn context-size telemetry, enabling real-time observation of context bloat patterns across all users.
Key claims
- Per-turn messageLength telemetry enables fleet context-bloat observability
Relations
- tengu_api_query messageLength Telemetry --[related_to]--> firstPartyEventLoggingExporter.ts