Files
SergeyMenshykh ab09246dc4 [Python] [Breaking] Extract skill spec metadata into SkillFrontmatter (#5775)
* Fix Skill docstring consistency and spelling

- Add ClassSkill to Skill class docstring concrete implementations list
- Normalize 'defence' to 'defense' for American English consistency
- Remove extra blank line in InlineSkill docstring example

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix E501 line-too-long lint error in test_skills.py

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix stale test section header to reflect SkillFrontmatter API

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix metadata children overriding top-level frontmatter fields

Scope YAML_KV_RE to column-0 keys only so indented children
under metadata: are not mistakenly parsed as top-level fields.
Add regression test and spec fields to sample SKILL.md files.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
ab09246dc4 · 2026-05-13 20:35:52 +00:00
History
..

Code-Defined Agent Skills

This sample demonstrates how to create Agent Skills in Python code, without needing SKILL.md files on disk. A unit-converter skill shows three approaches:

What's Demonstrated

  1. Static Resources — Pass inline content via the resources parameter when constructing a Skill
  2. Dynamic Resources — Attach callable functions via the @skill.resource decorator that return content computed at runtime
  3. Dynamic Scripts — Attach callable scripts via the @skill.script decorator (unit conversion via a single factor parameter)

All three can be combined with file-based skills in a single SkillsProvider.

Project Structure

code_defined_skill/
├── code_defined_skill.py
└── README.md

Running the Sample

Prerequisites

Environment Variables

Set the required environment variables in a .env file (see python/.env.example):

  • FOUNDRY_PROJECT_ENDPOINT: Your Azure AI Foundry project endpoint
  • AZURE_OPENAI_MODEL: The name of your model deployment (defaults to gpt-4o-mini)

Authentication

This sample uses AzureCliCredential for authentication. Run az login in your terminal before running the sample.

Run

cd python
uv run samples/02-agents/skills/code_defined_skill/code_defined_skill.py

Learn More