Definition of Callable Skills Callable skills in Agentic AI are skills that an AI agent can actively invoke during task execution when their capabilities, procedures, or instructions are relevant to the requirements of the current task. A callable skill typically represents a defined unit of task-supporting capability, such as retrieving information, analyzing content, processing data, generating or modifying an artifact, validating an output, interacting with a tool, or carrying out a specialized workflow. Describing a skill as callable emphasizes that the skill is not merely defined, documented, or known to the agent, but is available through an invocation mechanism that allows the agent to activate it and use its prescribed functionality as part of the ongoing workflow. Callable skills may be selected from a broader runtime skill catalog according to the task instructions, detected requirements, current context, intermediate results, and execution conditions. Multiple callable skills may therefore be invoked sequentially, conditionally, or in combination to support different subtasks, while skills that are available but irrelevant to the current task can remain unused. ...