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The complexity router's classifier sub-call copies the parent request's metadata verbatim, so its spend log row carries the caller's key, team and user and is indistinguishable from traffic the caller actually sent. Nothing on the row says otherwise: call_type is "acompletion" either way, model_group is overwritten to the classifier's own model group so the row never looks auto-routed, and routing_decision is absent exactly as it is on an ordinary request. Record the fact the system already knows at call time. internal_call_origin is declared on SpendLogsMetadata, which is the allowlist _get_spend_logs_metadata projects onto, and stamped in _classifier_call_metadata; both classifier paths already route through that one function and it feeds the metadata and litellm_metadata buckets alike, so every request surface is covered at one site. The key is reserved rather than caller-supplied, so it joins routing_decision in the untrusted-metadata strip and a caller cannot label their own traffic as router overhead. The classifier call also inherited no session identity, so the router minted a fresh trace id and the row landed in a session of its own. Forwarding the parent's session puts it in the trace of the request that triggered it, which is where an operator looks for what the routing cost. |
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| .. | ||
| adaptive_router | ||
| test_auto_router.py | ||
| test_base_routing_strategy.py | ||
| test_budget_limiter_hotpath.py | ||
| test_complexity_router.py | ||
| test_lar1_routing.py | ||
| test_lowest_latency.py | ||
| test_quality_router.py | ||
| test_router_routing_groups.py | ||
| test_router_routing_plugins.py | ||
| test_router_tag_regex_routing.py | ||
| test_router_tag_routing.py | ||