Add comprehensive input/output schema for stdio and http MCP transports

[Copilot]

Extends the action to support both stdio and http MCP upstream connections with type-specific configuration parameters.

Changes

Action Interface (action.yml)

• Inputs: Added type (stdio/http), command, args, env for stdio; url, headers for http; container, container-image, container-version, logs-dir for general config
• Outputs: Renamed api-key → token for consistency; kept url, port

Input Marshaling (src/main.ts)

• JSON parsing with runtime type validation for args (array), env/headers (string-keyed objects)
• Type-based validation: command required for stdio, url required for http
• Error messages include actual vs expected types (e.g., "must be JSON array, received: object")
• Support for container, container-image, and container-version inputs

Upstream Configuration (src/server.ts)

• Extended UpstreamConfig interface with env and headers fields
• Pass environment variables to StdioClientTransport
• Log warning via core.warning() when headers provided (MCP SDK limitation)

Documentation

• README.md: Complete API documentation with usage examples
• CONTRIBUTING.md: Development instructions (install, test, build, lint, format)

Example Usage

# stdio transport with environment
- uses: githubnext/gh-aw-mcp-container-action@v1
  with:
    type: stdio
    command: node
    args: '["mcp-server.js", "--port", "3000"]'
    env: '{"NODE_ENV": "production", "DEBUG": "mcp:*"}'

# http transport with auth headers
- uses: githubnext/gh-aw-mcp-container-action@v1
  with:
    type: http
    url: https://api.example.com/mcp
    headers: '{"Authorization": "Bearer token"}'

Notes

• Supports container, container-image, and container-version inputs for container configuration
• HTTP headers accepted but logged as warning (SDK doesn't support custom headers yet)

[!WARNING]

Original prompt

Update the action inputs and outputs t:

Inputs:

• type: stdio/http

• container:string

• container-image: string

• command: string

• args: string[]

• env: Map<string, string>

• url: string

• headers: Map<string,string>

• logs-dir: string

Outputs:

• url: string
• port: number
• token: string

Update the action.yml and the main.ts glue code that marshals the data using core APIs.

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[pelikhan]

@copilot this one should have been "container-version", and keep "container"

[Copilot]

Added container-version input in action.yml and removed the deprecated status from container. Both fields are now documented in the README. (commit 6295988)

[pelikhan]

@copilot move development guide in CONTRIBUTING.md

[Copilot]

Created CONTRIBUTING.md and moved all development instructions there. README now includes a link to the contributing guide. (commit 6295988)