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Agent Substrate's egress gateway denies an actor without an EgressPolicy, so no task could deliver its artifacts or reach a model. egress.py grants each task exactly: http/80 to ousast-receiver.ax-system.svc.cluster.local, and TLS passthrough/443 to the bound Workspaces' https Git hosts and the bound Model's openultrasast.io/egress-hosts (api.deepseek.com for deepseek-flash). No IPs, no wildcards, no https (MITM) rules. The reconciler writes the policy with kubectl-ate between ax apply and resume, reads it back, waits OUSAST_EGRESS_SETTLE (11 s, the gateway's cached deny), and after ax delete task confirms the policy went with its actor (kubectl-ate has no delete verb; the store cascades). The receiver is a selector-less Service (ops/ax/receiver-service.yaml.tmpl, applied by up.sh together with the no-build agentgateway egress gateway) on port 18090 of the host. Measured live: the gateway checks the policy on Host but connects to the address the actor dialled, so the runner dials the Service's ClusterIP (OUSAST_ARTIFACT_DIAL) with the receiver's name as Host. The runner now labels its delivery with the Run's task name (OUSAST_TASK), which is what the receiver accepts; the ax Task name was refused with 403. The Receiver moved to egress.py to keep reconciler.py at 460 lines. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo