Skill Creator

Skill Creator

Guide for creating skills that extend AI agent capabilities, with emphasis on Azure SDKs and Microsoft Foundry.

Required Context: When creating SDK or API skills, users MUST provide the SDK package name, documentation URL, or repository reference for the skill to be based on.

About Skills

Skills are modular knowledge packages that transform general-purpose agents into specialized experts:

1. Procedural knowledge — Multi-step workflows for specific domains
2. SDK expertise — API patterns, authentication, error handling for Azure services
3. Domain context — Schemas, business logic, company-specific patterns
4. Bundled resources — Scripts, references, templates for complex tasks

Core Principles

1. Concise is Key

The context window is a shared resource. Challenge each piece: "Does this justify its token cost?"

For domain/procedural skills: Agents are already capable. Only add what they don't already know.

For SDK/API skills: Users MUST provide SDK package name, documentation URL, or repository reference. The skill cannot be created without this context.

2. Fresh Documentation First

Azure SDKs change constantly. Skills should instruct agents to verify documentation:

## Before Implementation

Search `microsoft-docs` MCP for current API patterns:

- Query: "[SDK name] [operation] python"
- Verify: Parameters match your installed SDK version

3. Degrees of Freedom

Match specificity to implementation constraints. High freedom when approaches vary; low freedom when precise execution is required:

4. Progressive Disclosure

Skills load in three levels:

1. Metadata (~100 words) — Always in context
2. SKILL.md body (<5k words) — When skill triggers
3. References (unlimited) — As needed

Keep SKILL.md under 500 lines. Split into reference files when approaching this limit.

Skill Structure

Quick reference:

skill-name/
├── SKILL.md (required)
│   ├── YAML frontmatter (name, description)
│   └── Markdown instructions
└── Bundled Resources (optional)
    ├── scripts/      — Executable code
    ├── references/   — Documentation loaded as needed
    └── assets/       — Output resources (templates, images)

For Azure SDK skills, follow the Skill Section Order below. For domain skills, use your judgment to organize logically.

SKILL.md Essentials

• Frontmatter: name and description (description triggers the skill)
• Body: Keep under 500 lines; split large skills into reference files

Bundled Resources (Optional)

Creating Azure SDK Skills

When creating skills for Azure SDKs, follow these patterns consistently.

Skill Section Order

Follow this structure (based on existing Azure SDK skills):

1. Title — # SDK Name
2. Installation — pip install, npm install, etc.
3. Environment Variables — Required configuration, with an inline comment explaining when it's required . If using DefaultAzureCredentialin production,include AZURE_TOKEN_CREDENTIALS (set to prod or <specific_credential>)
4. Authentication & Lifecycle — Use a specific Microsoft Entra Token credential like ManagedIdentityCredential or WorkloadIdentityCredential for production. DefaultAzureCredential is only recommended for local development. To use DefaultAzureCredential in production, set the environment variable AZURE_TOKEN_CREDENTIALS to prod or the specific target credential. For Python skills, this section MUST start with the standard callout block (see Required Authentication & Lifecycle Callout (Python) below).
5. Core Workflow — Minimal viable example
6. Feature Tables — Clients, methods, tools
7. Best Practices — Numbered list
8. Reference Links — Table linking to /references/*.md

Required Authentication & Lifecycle Callout (Python)

Scope: Python skills (-py suffix) only. Other languages may follow their own idioms.

Every Python Azure SDK skill MUST open its ## Authentication & Lifecycle section with the following callout block, verbatim, before any code samples. This makes the two non-negotiable rules visible to users before they read or copy any client setup code.

## Authentication & Lifecycle

> **🔑 Two rules apply to every code sample below:**
>
> 1. **Prefer `DefaultAzureCredential`.** It works locally (Azure CLI / VS Code / Developer CLI) and in Azure (managed identity, workload identity) with no code change. Avoid connection strings, account/API keys — they bypass Entra audit and rotation.
>    - Local dev: `DefaultAzureCredential` works as-is.
>    - Production: set `AZURE_TOKEN_CREDENTIALS=prod` (or `AZURE_TOKEN_CREDENTIALS=<specific_credential>`) to constrain the credential chain to production-safe credentials.
> 2. **Wrap every client in a context manager** so HTTP transports, sockets, and token caches are released deterministically:
>    - Sync: `with <Client>(...) as client:`
>    - Async: `async with <Client>(...) as client:` **and** `async with DefaultAzureCredential() as credential:` (from `azure.identity.aio`)
>
> Snippets may abbreviate this setup, but production code should always follow both rules.

Placement rules:

• Insert immediately under the ## Authentication & Lifecycle heading, before the first code sample.
• Do not paraphrase or restructure the wording — the consistency across skills is the point.
• If the SDK does not support Entra ID at all (rare — e.g. some legacy speech REST endpoints, websocket APIs that require subscription keys), keep rule #2 (context managers) and replace rule #1 with a single sentence noting the SDK requires API-key auth and explaining why Entra is not yet available.
• If the SDK is async-only (e.g. azure-ai-voicelive), keep both rules but show only the async form in the bullets.
• Skip the callout entirely for non-Azure Python skills with no client lifecycle (e.g. pydantic-models-py).

Code sample enforcement. Every client construction in the skill body must demonstrate both rules:

• Show with / async with on every client instantiation in usage examples (not just the auth section).
• Show DefaultAzureCredential in the primary auth example. Do not delete API-key examples for SDKs where keys are still officially supported — many existing users (especially in regulated environments still completing their Entra rollout) need a copy-pastable working sample. Demote the keyed snippet into a clearly-labeled ### Legacy: API Key (existing keyed deployments) subsection placed after the primary DefaultAzureCredential block in the same ## Authentication & Lifecycle section. Include a one-line note that new code should use DefaultAzureCredential and that the keyed path is for existing deployments. Also add the <SERVICE>_KEY env var back to the Environment Variables block with a # Only required for the legacy API-key auth path below comment.
• A handful of services have key-specific quirks worth calling out in the Legacy subsection (e.g. azure-ai-translation-text requires a region= parameter when using a key against the global endpoint, because token-credential auth requires a custom subdomain endpoint). Surface these in the demoted block rather than dropping the example.
• For async examples, wrap DefaultAzureCredential from azure.identity.aio in async with credential: alongside the client.

Authentication Pattern (All Languages)

For local development, use DefaultAzureCredential which supports multiple auth methods. For production, use a specific credential type or configure DefaultAzureCredential with environment variable AZURE_TOKEN_CREDENTIALS set to prod or specify the target credential.

If configuring a Rust skill, use DeveloperToolsCredential for local development and ManagedIdentityCredential for production. The Rust SDK does not support DefaultAzureCredential, so explicitly use the appropriate credential in each environment.

# Python — note: client is wrapped in `with` for deterministic cleanup
from azure.identity import DefaultAzureCredential, ManagedIdentityCredential
# Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
credential = DefaultAzureCredential(require_envvar=True)
# Or use a specific credential directly in production:
# See https://learn.microsoft.com/python/api/overview/azure/identity-readme?view=azure-python#credential-classes
# credential = ManagedIdentityCredential()
with ServiceClient(endpoint, credential) as client:
    client.do_thing()

// C#
using Azure.Identity;

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
var credential = new DefaultAzureCredential(
    DefaultAzureCredential.DefaultEnvironmentVariableName
);
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/dotnet/api/overview/azure/identity-readme?view=azure-dotnet#credential-classes
// var credential = new ManagedIdentityCredential();
var client = new ServiceClient(new Uri(endpoint), credential);

// Java
import com.azure.identity.AzureIdentityEnvVars;
import com.azure.identity.DefaultAzureCredentialBuilder;
import com.azure.identity.ManagedIdentityCredential;
import com.azure.identity.ManagedIdentityCredentialBuilder;

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
TokenCredential credential = new DefaultAzureCredentialBuilder()
    .requireEnvVars(AzureIdentityEnvVars.AZURE_TOKEN_CREDENTIALS)
    .build();
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/java/api/overview/azure/identity-readme?view=azure-java-stable#credential-classes
// TokenCredential credential = new ManagedIdentityCredentialBuilder().build();
ServiceClient client = new ServiceClientBuilder()
    .endpoint(endpoint)
    .credential(credential)
    .buildClient();

// TypeScript
import {
  DefaultAzureCredential,
  ManagedIdentityCredential,
} from "@azure/identity";
// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
const credential = new DefaultAzureCredential({
  requiredEnvVars: ["AZURE_TOKEN_CREDENTIALS"],
});
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/javascript/api/overview/azure/identity-readme?view=azure-node-latest#credential-classes
// const credential = new ManagedIdentityCredential();
const client = new ServiceClient(endpoint, credential);

// Go
import (
  "context"

  "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
  "github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
)

ctx := context.Background()

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
cred, err := azidentity.NewDefaultAzureCredential(nil)
if err != nil {
  panic(err)
}

// Or use a specific credential directly in production:
// cred, err := azidentity.NewManagedIdentityCredential(nil)

client, err := azblob.NewClient("https://<account>.blob.core.windows.net/", cred, nil)
if err != nil {
  panic(err)
}

_ = client
_ = ctx

// Rust
use azure_identity::DeveloperToolsCredential;
use azure_storage_blob::BlobServiceClient;

let credential = DeveloperToolsCredential::new(); // Local dev
let client = BlobServiceClient::new(
    "https://<account>.blob.core.windows.net/",
    credential,
    None,
)?;

Never hardcode credentials. Use environment variables.

Standard Verb Patterns

Azure SDKs use consistent verbs across all languages:

Language-Specific Patterns

See references/azure-sdk-patterns.md for detailed patterns including:

• Python: ItemPaged, LROPoller, context managers, Sphinx docstrings. Pick sync or async for the whole skill and stick with it — never mix. Always show with / async with context managers first.
• .NET: Response<T>, Pageable<T>, Operation<T>, mocking support
• Java: Builder pattern, PagedIterable/PagedFlux, Reactor types
• TypeScript: PagedAsyncIterableIterator, AbortSignal, browser considerations
• Go: context.Context as first arg, runtime.Pager[T] via New*Pager() + More()/NextPage(ctx), runtime.Poller[T] via Begin* + PollUntilDone(ctx, nil), to.Ptr(...) helpers, and typed *azcore.ResponseError
• Rust: Installation via cargo add, dependency rule for azure_core, Response<T>, Pager<T>, RequestContent::from(), .into_model(), explicit credential types, RBAC roles for Entra ID authentication

Required Best Practices in Every Skill (User-Facing)

Python, .NET, Java, TypeScript, and Go languages

These two rules are not just authoring conventions for the skill itself — they MUST be explicitly written into every generated skill's ## Best Practices section so end users who follow the skill apply them in their own code.

Add both items verbatim (adapted only for language/SDK specifics) as the first two items of the Best Practices list. Do not assume users will infer them from examples.

Standard wording (Python; adapt for other languages):

1. **Pick sync OR async and stay consistent.** Do not mix `azure.xxx` sync clients with `azure.xxx.aio` async clients in the same call path. Choose one mode per module.
2. **Always use context managers for clients and async credentials.** Wrap every client in `with Client(...) as client:` (sync) or `async with Client(...) as client:` (async). For async `DefaultAzureCredential` from `azure.identity.aio`, also use `async with credential:` so tokens and transports are cleaned up.
3. **Use `DefaultAzureCredential`** for code that runs locally. Use a specific token credential (e.g. `ManagedIdentityCredential`, `WorkloadIdentityCredential`) for code that runs in Azure.

Variants to apply when the SDK shape differs:

Enforcement in code examples. Every code example inside the skill must itself obey both rules, so the skill demonstrates what it prescribes:

• Do not show sync and async calls interleaved in the same example. If you must show both modes, keep the primary example in one mode and isolate the alternative into a single ### Async variant (or ### Sync variant) subsection with its own complete example.
• Every client instantiation in every example must be wrapped in with / async with. The only permitted exception is the mandatory Authentication snippet (which illustrates the credential + client construction pattern) and framework lifespan patterns where a client is owned by the app (e.g. FastAPI lifespan).
• When async credentials from azure.identity.aio appear in an example, wrap them in async with credential: alongside the client.

Rust Language

These rules MUST be explicitly written into every Rust skill's ## Best Practices section as the first items:

1. Use cargo add to manage dependencies, never edit Cargo.toml directly. Always use cargo add <crate> or cargo remove <crate> instead of manually modifying the manifest file. Official crates are published on crates.io and should be added via cargo.

2. Add azure_core to Cargo.toml only when you import azure_core types directly. If your code imports types like azure_core::http::Url, azure_core::http::RequestContent, or azure_core::error::ErrorKind, explicitly add azure_core to your dependencies. If you only use types re-exported by service crates (e.g., via use azure_storage_blob::BlobClient), a direct azure_core dependency is optional.

3. Use DeveloperToolsCredential for local development and ManagedIdentityCredential for production. The Rust SDK does not support DefaultAzureCredential, so explicitly use the appropriate credential in each environment.

4. Use RequestContent::from() to wrap upload data. When uploading data (e.g., blobs), wrap the content in RequestContent::from(your_data) to ensure proper handling by the SDK.

5. Assign appropriate RBAC roles for Entra ID auth. For production authentication using Entra ID, ensure the identity has the necessary RBAC role assigned (e.g., "Storage Blob Data Contributor" for blob write access).

6. Always verify package versions using crates.io. Before using a package, check its version on crates.io to ensure you are using a stable and supported release.

Handling Deprecated or Rebranded SDKs

When an Azure SDK has been deprecated or rebranded, update skills to guide users toward the current package while maintaining backward compatibility:

1. Add a migration notice at the top of the skill:

> **⚠️ MIGRATION NOTICE**: The [Old Service Name] has been rebranded to **[New Service Name]**. While the package `old-package-name` remains available for compatibility, **new projects should use `new-package-name`** which provides the latest features and updates.
>
> **For new projects**: Use the `new-package-name` package instead.
>
> **This skill remains valid** for existing projects using `old-package-name`, but be aware you're using the legacy package name. The API patterns shown here are compatible with both packages.

2. Show both installation options:

## Installation

### Legacy Package (Old Name)

\`\`\`xml
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-old-package</artifactId>
<version>4.2.0</version>
</dependency>
\`\`\`

### Recommended Package (New Name)

**For new projects, use the rebranded package:**

\`\`\`xml
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-new-package</artifactId>
<version>1.0.0</version>
</dependency>
\`\`\`

> **Note**: The API patterns in this skill apply to both packages. Replace package names and imports as needed when using `azure-new-package`.

3. When to create a new skill vs. update existing:

• Update existing skill if the API is largely compatible (same or similar class/method names)
• Create new skill + migration guide if the API changed significantly (use references/migration.md)
• Always cross-reference between old and new skills

Examples:

• azure-ai-formrecognizer-java → azure-ai-documentintelligence (rebranded service)
• azure-communication-callingserver-java → azure-communication-callautomation (deprecated, with migration guide)

Example: Azure SDK Skill Structure

---
name: skill-creator
description: |
  Azure AI Example SDK for Python. Use for [specific service features].
  Triggers: "example service", "create example", "list examples".
---

# Azure AI Example SDK

## Installation

\`\`\`bash
pip install azure-ai-example
\`\`\`

## Environment Variables

\`\`\`bash
AZURE_EXAMPLE_ENDPOINT=https://<resource>.example.azure.com
AZURE_TOKEN_CREDENTIALS=prod # Required only if DefaultAzureCredential is used in production
\`\`\`

## Authentication & Lifecycle

> **🔑 Two rules apply to every code sample below:**
>
> 1. **Prefer `DefaultAzureCredential`.** It works locally (Azure CLI / VS Code / Developer CLI) and in Azure (managed identity, workload identity) with no code change. Avoid connection strings, account/API keys — they bypass Entra audit and rotation.
>    - Local dev: `DefaultAzureCredential` works as-is.
>    - Production: set `AZURE_TOKEN_CREDENTIALS=prod` (or `AZURE_TOKEN_CREDENTIALS=<specific_credential>`) to constrain the credential chain to production-safe credentials.
> 2. **Wrap every client in a context manager** so HTTP transports, sockets, and token caches are released deterministically:
>    - Sync: `with <Client>(...) as client:`
>    - Async: `async with <Client>(...) as client:` **and** `async with DefaultAzureCredential() as credential:` (from `azure.identity.aio`)
>
> Snippets may abbreviate this setup, but production code should always follow both rules.

\`\`\`python
from azure.identity import DefaultAzureCredential, ManagedIdentityCredential
from azure.ai.example import ExampleClient

# Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>

credential = DefaultAzureCredential(require_envvar=True)

# Or use a specific credential directly in production:

# See https://learn.microsoft.com/python/api/overview/azure/identity-readme?view=azure-python#credential-classes

# credential = ManagedIdentityCredential()

with ExampleClient(
endpoint=os.environ["AZURE_EXAMPLE_ENDPOINT"],
credential=credential,
) as client:
item = client.get_item("example")
\`\`\`

## Core Workflow

\`\`\`python
with ExampleClient(endpoint=endpoint, credential=credential) as client: # Create
item = client.create_item(name="example", data={...})

    # List (pagination handled automatically)
    for item in client.list_items():
        print(item.name)

    # Long-running operation
    poller = client.begin_process(item.id)
    result = poller.result()

    # Cleanup
    client.delete_item(item.id)

\`\`\`

## Reference Files

| File                                               | Contents                 |
| -------------------------------------------------- | ------------------------ |
| [references/tools.md](references/tools.md)         | Tool integrations        |
| [references/streaming.md](references/streaming.md) | Event streaming patterns |

Skill Creation Process

1. Gather SDK Context — User provides SDK/API reference (REQUIRED)
2. Understand — Research SDK patterns from official docs
3. Plan — Identify reusable resources and product area category
4. Create — Write SKILL.md in .github/skills/<skill-name>/
5. Categorize — Create symlink in skills/<language>/<category>/
6. Test — Create acceptance criteria and test scenarios
7. Document — Update README.md skill catalog
8. Iterate — Refine based on real usage

Step 1: Gather SDK Context (REQUIRED)

Before creating any SDK skill, the user MUST provide:

Prompt the user if not provided:

To create this skill, I need:
1. The SDK package name (e.g., azure-ai-projects)
2. The Microsoft Learn documentation URL or GitHub repo
3. The target language (py/dotnet/ts/java/go)

Search official docs first:

# Use microsoft-docs MCP to get current API patterns
# Query: "[SDK name] [operation] [language]"
# Verify: Parameters match the latest SDK version

Step 2: Understand the Skill

Gather concrete examples:

• "What SDK operations should this skill cover?"
• "What triggers should activate this skill?"
• "What errors do developers commonly encounter?"

Step 3: Plan Product Area Category

Skills are organized by language and product area in the skills/ directory via symlinks.

Product Area Categories:

Determine the category based on:

1. Azure service family (Storage → data, Event Hubs → messaging)
2. Primary use case (AI agents → foundry)
3. Existing skills in the same service area

Step 4: Create the Skill

Location: .github/skills/<skill-name>/SKILL.md

Naming convention:

• azure-<service>-<subservice>-<language>
• Examples: azure-ai-agents-py, azure-cosmos-java, azure-storage-blob-ts, azure-storage-blob-go
• For Go skills in documentation prose, use the short package name (for example azblob).
• Use the full module import path only in code/import examples (for example github.com/Azure/azure-sdk-for-go/sdk/storage/azblob).

For Azure SDK skills:

1. Search microsoft-docs MCP for current API patterns
2. Verify against installed SDK version
3. Follow the section order above
4. Include cleanup code in examples
5. Add feature comparison tables

Write bundled resources first, then SKILL.md.

Frontmatter:

---
name: skill-name-py
description: |
  Azure Service SDK for Python. Use for [specific features].
  Triggers: "service name", "create resource", "specific operation".
---

Step 5: Categorize with Symlinks

After creating the skill in .github/skills/, create a symlink in the appropriate category:

# Pattern: skills/<language>/<category>/<short-name> -> ../../../.github/skills/<full-skill-name>

# Example for azure-ai-agents-py in python/foundry:
cd skills/python/foundry
ln -s ../../../.github/skills/azure-ai-agents-py agents

# Example for azure-cosmos-db-py in python/data:
cd skills/python/data
ln -s ../../../.github/skills/azure-cosmos-db-py cosmos-db

# Example for azure-storage-blob-go in go/data:
cd skills/go/data
ln -s ../../../.github/skills/azure-storage-blob-go blob

Symlink naming:

• Use short, descriptive names (e.g., agents, cosmos, blob)
• Remove the azure- prefix and language suffix
• Match existing patterns in the category

Verify the symlink:

ls -la skills/python/foundry/agents
# Should show: agents -> ../../../.github/skills/azure-ai-agents-py

Step 6: Create Tests

Every skill MUST have acceptance criteria and test scenarios.

6.1 Create Acceptance Criteria

Location: tests/scenarios/<skill-name>/acceptance-criteria.md

Source materials (in priority order):

1. Official Microsoft Learn docs (via microsoft-docs MCP)
2. SDK source code from the repository
3. Existing reference files in the skill

Format:

# Acceptance Criteria: <skill-name>

**SDK**: `package-name`
**Repository**: https://github.com/Azure/azure-sdk-for-<language>
**Purpose**: Skill testing acceptance criteria

---

## 1. Correct Import Patterns

### 1.1 Client Imports

#### ✅ CORRECT: Main Client

\`\`\`python
from azure.ai.mymodule import MyClient
from azure.identity import DefaultAzureCredential
\`\`\`

#### ❌ INCORRECT: Wrong Module Path

\`\`\`python
from azure.ai.mymodule.models import MyClient # Wrong - Client is not in models
\`\`\`

## 2. Authentication Patterns

#### ✅ CORRECT: DefaultAzureCredential + context manager

\`\`\`python
credential = DefaultAzureCredential()
with MyClient(endpoint, credential) as client:
client.do_thing()
\`\`\`

#### ❌ INCORRECT: Hardcoded Credentials

\`\`\`python
client = MyClient(endpoint, api_key="hardcoded") # Security risk
\`\`\`

#### ❌ INCORRECT: Connection string / account key when Entra is supported

\`\`\`python
client = MyClient.from_connection_string(os.environ["CONNECTION_STRING"]) # Bypasses Entra audit/rotation
\`\`\`

#### ❌ INCORRECT: Bare client without context manager

\`\`\`python
client = MyClient(endpoint, credential) # Leaks HTTP transport on exception / interpreter exit
client.do_thing()
\`\`\`

Critical patterns to document:

• Import paths (these vary significantly between Azure SDKs)
• Authentication patterns
• Client initialization
• Async variants (.aio modules)
• Common anti-patterns

6.2 Create Test Scenarios

Location: tests/scenarios/<skill-name>/scenarios.yaml

config:
  model: gpt-4
  max_tokens: 2000
  temperature: 0.3

scenarios:
  - name: basic_client_creation
    prompt: |
      Create a basic example using the Azure SDK.
      Include proper authentication and client initialization.
    expected_patterns:
      - "DefaultAzureCredential"
      - "MyClient"
      - "with MyClient" # enforce context manager
    forbidden_patterns:
      - "api_key="
      - "hardcoded"
      - "from_connection_string" # prefer Entra over connection strings
    tags:
      - basic
      - authentication
    mock_response: |
      import os
      from azure.identity import DefaultAzureCredential
      from azure.ai.mymodule import MyClient

      credential = DefaultAzureCredential()
      with MyClient(
          endpoint=os.environ["AZURE_ENDPOINT"],
          credential=credential,
      ) as client:
          # ... rest of working example
          pass

Scenario design principles:

• Each scenario tests ONE specific pattern or feature
• expected_patterns — patterns that MUST appear
• forbidden_patterns — common mistakes that must NOT appear
• mock_response — complete, working code that passes all checks
• tags — for filtering (basic, async, streaming, tools)

6.3 Run Tests

cd tests
pnpm install

# Check skill is discovered
pnpm harness --list

# Run in mock mode (fast, deterministic)
pnpm harness <skill-name> --mock --verbose

# Run with Ralph Loop (iterative improvement)
pnpm harness <skill-name> --ralph --mock --max-iterations 5 --threshold 85

Success criteria:

• All scenarios pass (100% pass rate)
• No false positives (mock responses always pass)
• Patterns catch real mistakes

Step 7: Update Documentation

After creating the skill:

1. Update README.md — Add the skill to the appropriate language section in the Skill Catalog

   • Update total skill count (line ~73: > N skills in...)
   • Update Skill Explorer link count (line ~15: Browse all N skills)
   • Update language count table (lines ~77-83)
   • Update language section count (e.g., > N skills • suffix: -py)
   • Update category count (e.g., <summary><strong>Foundry & AI</strong> (N skills)</summary>)
   • Add skill row in alphabetical order within its category
   • Update test coverage summary (line ~622: **N skills with N test scenarios**)
   • Update test coverage table — update skill count, scenario count, and top skills for the language

2. Regenerate GitHub Pages data — Run the extraction script to update the docs site

   cd docs-site && npx tsx scripts/extract-skills.ts
   

   This updates docs-site/src/data/skills.json which feeds the Astro-based docs site. Then rebuild the docs site:

   cd docs-site && npm run build
   

   This outputs to docs/ which is served by GitHub Pages.

3. Verify AGENTS.md — Ensure the skill count is accurate

Step 8: Regenerate Existing Skills from Latest SDK Sources

Use this workflow when an existing skill has stale examples, outdated API signatures, or changed package guidance.

1. Identify canonical source files first

For Azure SDK language skills, use official upstream source docs and examples as the source of truth:

• Go: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/<service>/<module>/README.md
• Go examples: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/<service>/<module>/
• Rust: https://github.com/Azure/azure-sdk-for-rust/tree/main/sdk/<service>/<crate>/README.md
• Rust examples: https://github.com/Azure/azure-sdk-for-rust/tree/main/sdk/<service>/<crate>/examples/
• .NET/Java/Python/TS/Go: use current Microsoft Learn package docs + official SDK repos

2. Refresh skill content surgically

• Update code snippets to match current constructor/method signatures
• Keep crate/package names aligned with official publisher guidance
• Preserve skill structure/frontmatter unless intentionally changing behavior
• Update "Best Practices" and "Reference Links" when upstream recommendations change
• For Rust, if code uses azure_core types/imports directly, ensure azure_core is present in Cargo.toml; if only service-crate re-exports are used, direct azure_core dependency is optional

3. Validate regenerated skill behavior

cd tests
pnpm harness <skill-name> --mock --verbose

If the skill has a Vally scenario, run that eval as well (locally or in CI) before finalizing.

Rust regeneration gate (required for Rust skills):

When regenerating any Rust skill, verify the generated ## Best Practices section contains these exact first two rules:

1. Use cargo add to manage dependencies, never edit Cargo.toml directly
2. Add azure_core only when importing azure_core types directly

Use a content check before finalizing:

rg -n "Use `cargo add` to manage dependencies, never edit `Cargo.toml` directly|Add `azure_core` only when importing `azure_core` types directly" .github/plugins/azure-sdk-rust/skills/**/SKILL.md

The regeneration is not complete unless both lines are present in each affected Rust skill.

4. Regenerate docs artifacts after refresh

cd docs-site && npx tsx scripts/extract-skills.ts
cd docs-site && npm run build

5. Record what changed

In the PR/commit notes, include:

• Which upstream docs/examples were used
• Which snippets/signatures were corrected
• Which tests/evals were run and their outcomes

Progressive Disclosure Patterns

Pattern 1: High-Level Guide with References

# SDK Name

## Quick Start

[Minimal example]

## Advanced Features

- **Streaming**: See [references/streaming.md](references/streaming.md)
- **Tools**: See [references/tools.md](references/tools.md)

Pattern 2: Language Variants

azure-service-skill/
├── SKILL.md (overview + language selection)
└── references/
    ├── python.md
    ├── dotnet.md
    ├── go.md
    ├── java.

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