typespec create api plugin

Author's original introduction

Generate a TypeSpec API plugin with REST operations, authentication, and Adaptive Cards for Microsoft 365 Copilot

SkillPi interpretation

Tasks

typespec create api plugin

Audience

Use the scenarios stated in the author's introduction.

Inputs and outputs

See the complete author document; outputs have not been runtime verified by SkillPi.

Software, accounts and paid services

Check required software, accounts, costs and permissions in the full document; confirm and authorize actual file access and external services in your host. Domains referenced in the documents (not a runtime allowlist): oauth.example.com

Limits and differences

Functionality, version status and outcome statements in the introduction are author claims. Only pinned source and static attachment evidence were checked; runtime behavior, external services and compatibility are not guaranteed.

Testing

Not tested

Security rating and access scope

caution · Static evidence review; not a runtime safety guarantee.

Check required software, accounts, costs and permissions in the full document; confirm and authorize actual file access and external services in your host. Domains referenced in the documents (not a runtime allowlist): oauth.example.com

Before use, confirm and authorize actual file access, external services and network destinations in your host. This review grants no runtime permissions.

Original SKILL.md

---
name: typespec-create-api-plugin
description: 'Generate a TypeSpec API plugin with REST operations, authentication, and Adaptive Cards for Microsoft 365 Copilot'
---

# Create TypeSpec API Plugin

Create a complete TypeSpec API plugin for Microsoft 365 Copilot that integrates with external REST APIs.

## Requirements

Generate TypeSpec files with:

### main.tsp - Agent Definition
```typescript
import "@typespec/http";
import "@typespec/openapi3";
import "@microsoft/typespec-m365-copilot";
import "./actions.tsp";

using TypeSpec.Http;
using TypeSpec.M365.Copilot.Agents;
using TypeSpec.M365.Copilot.Actions;

@agent({
  name: "[Agent Name]",
  description: "[Description]"
})
@instructions("""
  [Instructions for using the API operations]
""")
namespace [AgentName] {
  // Reference operations from actions.tsp
  op operation1 is [APINamespace].operationName;
}
```

### actions.tsp - API Operations
```typescript
import "@typespec/http";
import "@microsoft/typespec-m365-copilot";

using TypeSpec.Http;
using TypeSpec.M365.Copilot.Actions;

@service
@actions(#{
    nameForHuman: "[API Display Name]",
    descriptionForModel: "[Model description]",
    descriptionForHuman: "[User description]"
})
@server("[API_BASE_URL]", "[API Name]")
@useAuth([AuthType]) // Optional
namespace [APINamespace] {
  
  @route("[/path]")
  @get
  @action
  op operationName(
    @path param1: string,
    @query param2?: string
  ): ResponseModel;

  model ResponseModel {
    // Response structure
  }
}
```

## Authentication Options

Choose based on API requirements:

1. **No Authentication** (Public APIs)
   ```typescript
   // No @useAuth decorator needed
   ```

2. **API Key**
   ```typescript
   @useAuth(ApiKeyAuth<ApiKeyLocation.header, "X-API-Key">)
   ```

3. **OAuth2**
   ```typescript
   @useAuth(OAuth2Auth<[{
     type: OAuth2FlowType.authorizationCode;
     authorizationUrl: "https://oauth.example.com/authorize";
     tokenUrl: "https://oauth.example.com/token";
     refreshUrl: "https://oauth.example.com/token";
     scopes: ["read", "write"];
   }]>)
   ```

4. **Registered Auth Reference**
   ```typescript
   @useAuth(Auth)
   
   @authReferenceId("registration-id-here")
   model Auth is ApiKeyAuth<ApiKeyLocation.header, "X-API-Key">
   ```

## Function Capabilities

### Confirmation Dialog
```typescript
@capabilities(#{
  confirmation: #{
    type: "AdaptiveCard",
    title: "Confirm Action",
    body: """
    Are you sure you want to perform this action?
      * **Parameter**: {{ function.parameters.paramName }}
    """
  }
})
```

### Adaptive Card Response
```typescript
@card(#{
  dataPath: "$.items",
  title: "$.title",
  url: "$.link",
  file: "cards/card.json"
})
```

### Reasoning & Response Instructions
```typescript
@reasoning("""
  Consider user's context when calling this operation.
  Prioritize recent items over older ones.
""")
@responding("""
  Present results in a clear table format with columns: ID, Title, Status.
  Include a summary count at the end.
""")
```

## Best Practices

1. **Operation Names**: Use clear, action-oriented names (listProjects, createTicket)
2. **Models**: Define TypeScript-like models for requests and responses
3. **HTTP Methods**: Use appropriate verbs (@get, @post, @patch, @delete)
4. **Paths**: Use RESTful path conventions with @route
5. **Parameters**: Use @path, @query, @header, @body appropriately
6. **Descriptions**: Provide clear descriptions for model understanding
7. **Confirmations**: Add for destructive operations (delete, update critical data)
8. **Cards**: Use for rich visual responses with multiple data items

## Workflow

Ask the user:
1. What is the API base URL and purpose?
2. What operations are needed (CRUD operations)?
3. What authentication method does the API use?
4. Should confirmations be required for any operations?
5. Do responses need Adaptive Cards?

Then generate:
- Complete `main.tsp` with agent definition
- Complete `actions.tsp` with API operations and models
- Optional `cards/card.json` if Adaptive Cards are needed

Copyright and license notice

MIT License

Copyright GitHub, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.