Add metadata capabilities and AZD_EXT_DEBUG support to extensions

[Copilot]

This PR adds metadata capability and AZD_EXT_DEBUG debugger support to all azd extensions. These enhancements enable better telemetry tracking (via command path resolution) and improved debugging workflows for extension developers.

Changes

For Each Extension

1. Metadata Capability: Added metadata command to expose extension command structure for telemetry (captures full extension command path, see tracing: capture full extension command path using metadata capability #6528)
2. Debugger Support: Added azdext.WaitForDebugger() call to support AZD_EXT_DEBUG=true environment variable for debugging extensions (Add azdext.WaitForDebugger to extensions for improved debugging #6542)

For microsoft.azd.extensions (azd x)

• Add metadata and framework service provider capabilities to azd x init wizard
• Update Go scaffolding with metadata command, azdext.WaitForDebugger(), and ExtensionHost pattern

Testing

• Built and tested all extensions locally
• Verified metadata commands return correct command structure
• Verified AZD_EXT_DEBUG=true prompts for debugger attachment

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add metadata capabilities to azure.ai.agents and azure.ai.finetune extensions</issue_title>
<issue_description>See #6496

We'll need to bump the github.com/azure/azure-dev/cli/azd dependency in go.mod</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add metadata capabilities to extensions #6539

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[JeffreyCA]

@copilot can you apply this to the other extensions as well (except microsoft.azd.ai.builder)? And also bump version numbers and create changelog entries for them all

[Copilot]

@copilot can you apply this to the other extensions as well (except microsoft.azd.ai.builder)? And also bump version numbers and create changelog entries for them all

Applied metadata capability to the remaining extensions (except microsoft.azd.ai.builder) in commit e25077c:

• azure.ai.agents → v0.1.6-preview
• azure.ai.finetune → v0.0.9-preview
• azure.coding-agent → v0.5.3
• microsoft.azd.concurx → v0.0.2
• microsoft.azd.extensions → v0.8.1

Each extension now has a hidden metadata command, updated extension.yaml with the metadata capability, bumped versions, and changelog entries.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• aka.ms
  • Triggering command: ./azd ./azd x metadata -goversion go1.25.5 -c=4 -nolocalimports -importcfg /tmp/go-build3973352797/b744/importcfg -pack /home/REDACTED/work/azure-dev/azure-dev/cli/azd/pkg/tools/javac/javac.go x_amd64/compile 1991�� 64/src/net o 64/pkg/tool/linu-lang=go1.23 -I /tmp/go-build400-o -I 64/pkg/tool/linu-trimpath (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[JeffreyCA]

@copilot can you make these changes, and in addition add improved debugging as described in #6542?

[Copilot]

@copilot can you make these changes, and in addition add improved debugging as described in #6542?

All changes applied in commit 4664a22:

Version updates:

• azure.coding-agent → 0.6.0
• microsoft.azd.extensions → 0.9.0

WaitForDebugger (#6542) added to:

• azure.ai.agents: init command
• azure.ai.finetune: init, jobs submit, jobs show, jobs list commands
• azure.coding-agent: config command
• microsoft.azd.concurx: up command
• microsoft.azd.extensions: init, release commands

Changelog entries simplified to "Add metadata capability" and "Add azdext.WaitForDebugger support for improved debugging".