Add typespec-metadata emitter

[tjprescott]

Closes Azure/azure-sdk-tools#13302

Here's an example output:

emitterVersion: 0.1.0
generatedAt: 2026-01-16T20:02:03.538Z
typespec:
  namespace: Storage.Blob
  type: data
languages:
  python:
    emitterName: "@azure-tools/typespec-python"
    packageName: azure-storage-blob
    namespace: azure.storage.blob
    outputDir: "{output-dir}/sdk/storage/azure-storage-blob"
    flavor: azure
    serviceDir: sdk/storage
  csharp:
    emitterName: "@azure-tools/typespec-csharp"
    packageName: Azure.Storage.Blob
    namespace: Azure.Storage.Blob
    outputDir: "{output-dir}/sdk/storage/Azure.Storage.Blob"
    flavor: azure
    serviceDir: sdk/storage
  typescript:
    emitterName: "@azure-tools/typespec-ts"
    packageName: "@azure-rest/azure-storage-blob"
    namespace: "@azure-rest/azure-storage-blob"
    outputDir: "{output-dir}/sdk/storage/azure-storage-blob-rest"
    flavor: azure
    serviceDir: sdk/storage
  java:
    emitterName: "@azure-tools/typespec-java"
    packageName: azure-storage-blob
    namespace: com.azure.storage.blob
    outputDir: "{output-dir}/sdk/storage/azure-storage-blob"
    flavor: azure
    serviceDir: sdk/storage
  rust:
    emitterName: "@azure-tools/typespec-rust"
    packageName: azure_storage_blob
    namespace: azure_storage_blob
    outputDir: "{output-dir}/sdk/storage/azure_storage_blob"
    flavor: azure
    serviceDir: sdk/storage
sourceConfigPath: C:/repos/azure-rest-api-specs/specification/storage/Microsoft.BlobStorage/tspconfig.yaml

[azure-sdk]

All changed packages have been documented.

• ✅ @azure-tools/typespec-metadata

Show changes

@azure-tools/typespec-metadata - internal ✏️

Initial creation of typespec-metadata emitter.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/Azure/typespec-azure/@azure-tools/typespec-metadata@3734

commit: 0393bd0

[azure-sdk]

You can try these changes here

🛝 Playground	🌐 Website

[timotheeguerin]

realized never submitted my comments