Investigate failed Microsoft Foundry hosted-agent deployments — MAF SDK breaking changes, ACR push, ACA rollout, BYOK provisioning, and the azd ai agent extension's known envelope and RBAC quirks.
Installation
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Investigate failed Microsoft Foundry hosted-agent deployments — MAF SDK breaking changes, ACR push, ACA rollout, BYOK provisioning, and the azd ai agent extension's known envelope and RBAC quirks.
hosted_agent_deploy_expert
When to use
A user reports a failed azd up, azd ai agent deploy, or azd deploy for a Foundry hosted agent
A scheduled task flags failed deployments in the monitored Foundry project
A hosted agent starts but the first /invoke returns errors
Investigation flow
Identify the failed deploy — agent name, approximate time, which command the user ran.
Check the Foundry project's deployments:
az ml online-deployment list \
--workspace-name <project> --resource-group <rg> \
--output table
Capture instanceName, provisioningState, failureReason for each failed deployment.
Pull container logs from App Insights for the failure window:
traces
| where timestamp > ago(1h)
| where cloud_RoleName == "<agent-name>"
| where severityLevel >= 2
| project timestamp, message, severityLevel, customDimensions
| top 50 by timestamp desc
Classify by pattern:
Pattern in logs
Root cause
KI
Authentication failed with provider ... (HTTP 401)
Foundry User missing at account scope
foundry-hosted-agents KI-001
cannot import name 'AzureOpenAIChatClient' from 'agent_framework.azure'
MAF SDK 1.4.0 breaking change
foundry-hosted-agents KI-002 (replace with OpenAIChatClient from agent_framework.openai)
SkillsProvider object has no attribute 'skill_paths'
