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agntcy/oasf

Open Agentic Schema Framework

The Open Agentic Schema Framework (OASF) is a standardized schema system for defining and managing AI agent capabilities, interactions, and metadata. It provides a structured way to describe agent attributes, capabilities, and relationships using attribute-based taxonomies. The framework includes development tools, schema validation, and hot-reload capabilities for rapid schema development, all managed through a Taskfile-based workflow and containerized development environment. OASF serves as the foundation for interoperable AI agent systems, enabling consistent definition and discovery of agent capabilities across distributed systems.

OASF is highly inspired from OCSF (Open Cybersecurity Schema Framework) in terms of data modeling philosophy but also in terms of implementation. The server is a derivative work of OCSF schema server and the schema update workflows reproduce those developed by OCSF.

Features

OASF defines a set of standards for AI agent content representation that aims to:

  • Define common data structure to facilitate content standardization, validation, and interoperability
  • Ensure unique agent identification to address content discovery and consumption
  • Provide extension capabilities to enable third-party features

Open Agentic Schema Framework Server

The server/ directory contains the Open Agents Schema Framework (OASF) Schema Server source code. The schema server is an HTTP server that provides a convenient way to browse and use the OASF schema. The server provides also schema validation capabilities to be used during development.

You can access the OASF schema server, which is running the latest released schema, at schema.oasf.agntcy.org.

The schema server can also be used locally.

Prerequisites

Make sure Docker is installed with Buildx.

Development

Use Taskfile for all related development operations such as testing, validating, deploying, and working with the project.

Check the example.env to see the configuration for the operations below.

Clone the repository

git clone https://github.com/agntcy/oasf.git

Build artifacts

This step will fetch all project dependencies and subsequently build all project artifacts such as helm charts and docker images.

task deps
task build

Deploy locally

This step will create an ephemeral Kind cluster and deploy OASF services via Helm chart. It also sets up port forwarding so that the services can be accessed locally.

task up

To access the schema server, open localhost:8080 in your Web browser.

Note that any changes made to the schema or server backend itself will require running task up again.

Hot reload

In order to run the server in hot-reload mode, you must first deploy the services, and run another command to signal that the schema will be actively updated.

This can be achieved by starting an interactive reload session via:

task reload

Note that this will only perform hot-reload for schema changes. Reloading backend changes still requires re-running task build && task up.

Cleanup

This step will handle cleanup procedure by removing resources from previous steps, including ephemeral Kind clusters and Docker containers.

task down

Artifacts distribution

See https://github.com/orgs/agntcy/packages?repo_name=oasf

Copyright Notice

Copyright Notice and License

Copyright (c) 2025 Cisco and/or its affiliates.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.# dir