openai-skill-creator/references/openai_yaml.md

openai.yaml fields (full example + descriptions)

agents/openai.yaml is an extended, product-specific config intended for the machine/harness to read, not the agent. Other product-specific config can also live in the agents/ folder.

Full example

interface:
  display_name: "Optional user-facing name"
  short_description: "Optional user-facing description"
  icon_small: "./assets/small-400px.png"
  icon_large: "./assets/large-logo.svg"
  brand_color: "#3B82F6"
  default_prompt: "Optional surrounding prompt to use the skill with"

dependencies:
  tools:
    - type: "mcp"
      value: "github"
      description: "GitHub MCP server"
      transport: "streamable_http"
      url: "https://api.githubcopilot.com/mcp/"

Field descriptions and constraints

Top-level constraints:

• Quote all string values.
• Keep keys unquoted.

• For interface.default_prompt: generate a helpful, short (typically 1 sentence) example starting prompt based on the skill. It must explicitly mention the skill as $skill-name (e.g., "Use $skill-name-here to draft a concise weekly status update.").

• interface.display_name: Human-facing title shown in UI skill lists and chips.

• interface.short_description: Human-facing short UI blurb (25–64 chars) for quick scanning.
• interface.icon_small: Path to a small icon asset (relative to skill dir). Default to ./assets/ and place icons in the skill's assets/ folder.
• interface.icon_large: Path to a larger logo asset (relative to skill dir). Default to ./assets/ and place icons in the skill's assets/ folder.
• interface.brand_color: Hex color used for UI accents (e.g., badges).
• interface.default_prompt: Default prompt snippet inserted when invoking the skill.
• dependencies.tools[].type: Dependency category. Only mcp is supported for now.
• dependencies.tools[].value: Identifier of the tool or dependency.
• dependencies.tools[].description: Human-readable explanation of the dependency.
• dependencies.tools[].transport: Connection type when type is mcp.
• dependencies.tools[].url: MCP server URL when type is mcp.