feat(agent): route selected products to the ai-gateway - #3659
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015gyKxP2MuVuNRCK9uZt1Lr
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brandonleung
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Reviews (1): Last reviewed commit: "feat(agent): route selected products to ..." | Re-trigger Greptile |
…sertion Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015gyKxP2MuVuNRCK9uZt1Lr
richardsolomou
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would be worth testing exact 8,192-byte and 8,193-byte blobs so an off-by-one at the gateway limit cant slip through
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Problem
Model calls from code sandboxes all go through the legacy Python
llm-gateway. We're migrating products to the new Goai-gatewayone at a time, so the agent-server needs to pick a gateway per request. The two gateways also take attribution differently: the old one wants a product slug in the URL plus per-property headers, the new one wants a single JSON header.Changes
Routing to the new gateway is opt-in via two env vars:
AI_GATEWAY_URLis the new gateway's address;AI_GATEWAY_PRODUCTSlists theai_productvalues that may use it. Both must be set. Unlisted products keep using the Python gateway.ai_product,ai_stage, andteam_idin oneX-PostHog-Propertiesheader, built by a newbuildPosthogPropertiesBlobhelper in@posthog/shared(enforces the gateway's 8KB / ASCII limits).ai_producttags (signals_scout, ...), matching the non-sandbox signals stages.How did you test this?
Unit tests cover the routing choice and the header builder (cap trimming, sanitization, unlisted products falling back).
tscandbiomeclean.Inert until the sandbox chart sets both env vars (PostHog/posthog#72770 plus a charts PR). Rollback: clear either one.