[MartinLyu (dislovelhl)]

Motivation & Context

I maintain agent-framework-acgs (Apache-2.0, https://github.com/acgs-ai/agent-framework-acgs). This PR adds it to the Python catalog's Middleware section.

The integration is published for the Python SDK. agent-framework-acgs 0.1.0 is on PyPI (https://pypi.org/project/agent-framework-acgs/) and implements Agent Framework middleware:

• ACGSFunctionMiddleware subclasses FunctionMiddleware. Before a function runs, it checks the call's name and arguments against rules from the open-source acgs-lite engine. A blocked call never reaches call_next: the reason becomes the call's result, so the model reads it.
• When a rule calls for review, the middleware returns a function_approval_request, so the run pauses in the framework's tool approval flow (user_input_requests). The call is checked again when the approved call is replayed.
• ACGSToolCheck subclasses ChatMiddleware and stops a run before the model is called if it offers tools the function middleware cannot check (hosted tools, declaration-only tools, additional_tools).

The row links to the repository, and issues go to https://github.com/acgs-ai/agent-framework-acgs/issues/new.

The package's own CI runs its tests on Python 3.10 to 3.14 against agent-framework-core 1.20.0 and 1.23.0, using a scripted chat client built on FunctionInvocationLayer and ChatMiddlewareLayer. To check it offline with no API key: pip install agent-framework-acgs, then run examples/quickstart.py from the repository. It blocks an email that leaks a password, runs a weather lookup, and pauses a refund for approval, then runs it once approved.

Description & Review Guide

• What are the major changes? One row in the Middleware section of python/samples/community-projects.md, in alphabetical order above Tracekit.
• What is the impact of these changes? Documentation only.
• What do you want reviewers to focus on? The wording of the row. I'm happy to change it.

Related Issue

N/A - trivial change: one catalog row in the format the catalog criteria define, no code.

AI Assistance

• No material AI assistance was used.
• This is an AI-assisted contribution. I reviewed, understood, and verified all submitted content and accept responsibility for it.

AI assistance details: the catalog row and this description were drafted with AI assistance, and the package was built and tested with AI assistance; I reviewed it.

Contribution Checklist

• The code builds clean without any errors or warnings
• All unit tests pass, and I have added new tests where possible
• The PR follows the Contribution Guidelines
• This PR links to an agreed issue with no competing open PR, or the Related Issue section documents a trivial-change or repository-automation exception.
• This is not a breaking change. If it is a breaking change, add the breaking change label (or add "[BREAKING]" to the title prefix, before or after any language prefix) — a workflow keeps the label and title prefix in sync automatically.

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