Duplicate review (#1001)

* Removing a codex-specific agent (model deprecated) and removing model from blueprint mode

* Combining skills into a single skill with an internal decision tree

* Converting agents to skill with decision tree

Closes #998

* Converting agents to skill with decision tree"
Fixes #999

skills/semantic-kernel/references/dotnet.md

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+# Semantic Kernel for .NET
+
+Use this reference when the target project is written in C# or another .NET language.
+
+## Authoritative sources
+
+- Repository: <https://github.com/microsoft/semantic-kernel/tree/main/dotnet>
+- Samples: <https://github.com/microsoft/semantic-kernel/tree/main/dotnet/samples>
+
+## .NET-specific guidance
+
+- Use `async`/`await` patterns consistently for kernel operations.
+- Follow .NET best practices with strong typing and explicit interfaces.
+- Keep service registration, configuration, and authentication aligned with standard .NET hosting patterns.
+- Check the latest .NET samples before introducing new APIs, plugins, or orchestration patterns.

skills/semantic-kernel/references/python.md

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+# Semantic Kernel for Python
+
+Use this reference when the target project is written in Python.
+
+## Authoritative sources
+
+- Repository: <https://github.com/microsoft/semantic-kernel/tree/main/python>
+- Samples: <https://github.com/microsoft/semantic-kernel/tree/main/python/samples>
+
+## Python-specific guidance
+
+- Use modern async patterns throughout kernel operations.
+- Add type hints and keep APIs explicit even in dynamic code.
+- Follow standard Python packaging and environment practices for dependencies and tooling.
+- Check the latest Python samples before introducing new APIs, plugins, or orchestration patterns.