diff --git a/packages/sdk/C#/.github/workflow/nuget-publish.yml b/packages/sdk/C#/.github/workflow/nuget-publish.yml
new file mode 100644
index 00000000..bec65a92
--- /dev/null
+++ b/packages/sdk/C#/.github/workflow/nuget-publish.yml
@@ -0,0 +1,101 @@
+name: Build and Publish NuGet Package
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [main, develop]
+    paths:
+      - "src/**"
+      - "Directory.*"
+      - "*.props"
+      - ".github/workflows/nuget-publish.yml"
+      - "GitVersion.yml"
+  pull_request:
+    branches: [main, develop]
+    paths:
+      - "src/**"
+      - "Directory.*"
+      - "*.props"
+      - ".github/workflows/nuget-publish.yml"
+      - "GitVersion.yml"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+      DOTNET_CLI_TELEMETRY_OPTOUT: true
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required for GitVersion to work properly
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: "8.0.x"
+          source-url: https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json
+        env:
+          NUGET_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install GitVersion
+        uses: gittools/actions/gitversion/setup@v0.10.2
+        with:
+          versionSpec: "5.x"
+
+      - name: Determine Version
+        id: gitversion
+        uses: gittools/actions/gitversion/execute@v0.10.2
+        with:
+          useConfigFile: true
+
+      - name: Display GitVersion outputs
+        run: |
+          echo "SemVer: ${{ steps.gitversion.outputs.semVer }}"
+          echo "NuGetVersionV2: ${{ steps.gitversion.outputs.nuGetVersionV2 }}"
+          echo "AssemblySemVer: ${{ steps.gitversion.outputs.assemblySemVer }}"
+          echo "FullSemVer: ${{ steps.gitversion.outputs.fullSemVer }}"
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore /p:Version=${{ steps.gitversion.outputs.assemblySemVer }}
+
+      - name: Run tests
+        run: dotnet test --no-build --verbosity normal --configuration Release
+
+      - name: Package NuGet
+        run: dotnet pack --configuration Release --no-build --output nupkgs /p:Version=${{ steps.gitversion.outputs.nuGetVersionV2 }} /p:PackageVersion=${{ steps.gitversion.outputs.nuGetVersionV2 }}
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: nupkg
+          path: nupkgs/*.nupkg
+
+      # Publish to GitHub Packages only on main branch or when triggered manually
+      - name: Publish NuGet package to GitHub Packages
+        if: github.event_name == 'workflow_dispatch' || github.ref == 'refs/heads/main'
+        run: dotnet nuget push nupkgs/*.nupkg --api-key ${{ secrets.GITHUB_TOKEN }} --source https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json
+
+      # Create a GitHub release with tag when pushing to main
+      - name: Create Release
+        uses: actions/create-release@v1
+        if: github.ref == 'refs/heads/main'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: v${{ steps.gitversion.outputs.semVer }}
+          release_name: Release v${{ steps.gitversion.outputs.semVer }}
+          draft: false
+          prerelease: false
+
+      # Publish to NuGet.org only for releases from main branch
+      - name: Publish to NuGet.org
+        if: github.ref == 'refs/heads/main' && github.event_name != 'pull_request'
+        run: dotnet nuget push nupkgs/*.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json
+        env:
+          NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
diff --git a/packages/sdk/C#/.github/workflow/release.yml b/packages/sdk/C#/.github/workflow/release.yml
new file mode 100644
index 00000000..3fa1ce05
--- /dev/null
+++ b/packages/sdk/C#/.github/workflow/release.yml
@@ -0,0 +1,81 @@
+name: Create Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      releaseType:
+        description: "Release type (patch, minor, major)"
+        required: true
+        default: "patch"
+        type: choice
+        options:
+          - patch
+          - minor
+          - major
+
+jobs:
+  create-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.RELEASE_PAT }} # Personal access token with repo permissions
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: "8.0.x"
+
+      - name: Install GitVersion
+        uses: gittools/actions/gitversion/setup@v0.10.2
+        with:
+          versionSpec: "5.x"
+
+      - name: Get current version
+        id: gitversion
+        uses: gittools/actions/gitversion/execute@v0.10.2
+        with:
+          useConfigFile: true
+
+      - name: Display current version
+        run: echo "Current version is ${{ steps.gitversion.outputs.semVer }}"
+
+      - name: Setup Git
+        run: |
+          git config --global user.name "GitHub Actions"
+          git config --global user.email "github-actions@github.com"
+
+      - name: Determine new version
+        id: newversion
+        run: |
+          CURRENT_VERSION=${{ steps.gitversion.outputs.majorMinorPatch }}
+          RELEASE_TYPE=${{ github.event.inputs.releaseType }}
+
+          IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"
+
+          if [ "$RELEASE_TYPE" == "major" ]; then
+            NEW_VERSION="$((MAJOR + 1)).0.0"
+          elif [ "$RELEASE_TYPE" == "minor" ]; then
+            NEW_VERSION="$MAJOR.$((MINOR + 1)).0"
+          else # patch
+            NEW_VERSION="$MAJOR.$MINOR.$((PATCH + 1))"
+          fi
+
+          echo "newVersion=$NEW_VERSION" >> $GITHUB_OUTPUT
+          echo "New version will be $NEW_VERSION"
+
+      - name: Create commit with version bump
+        run: |
+          echo "+semver: ${{ github.event.inputs.releaseType }}" > version-bump.txt
+          git add version-bump.txt
+          git commit -m "+semver: ${{ github.event.inputs.releaseType }}"
+          git push origin HEAD:main
+
+      - name: Create tag
+        run: |
+          git tag -a v${{ steps.newversion.outputs.newVersion }} -m "Release v${{ steps.newversion.outputs.newVersion }}"
+          git push origin v${{ steps.newversion.outputs.newVersion }}
+
+      # The actual release creation will be handled by the main workflow triggered by the tag push
diff --git a/packages/sdk/C#/CI-CD-DOCUMENTATION.md b/packages/sdk/C#/CI-CD-DOCUMENTATION.md
new file mode 100644
index 00000000..d9bac182
--- /dev/null
+++ b/packages/sdk/C#/CI-CD-DOCUMENTATION.md
@@ -0,0 +1,117 @@
+# CI/CD Pipeline Documentation
+
+This document explains how the CI/CD pipeline works for this project, including versioning, building, and publishing NuGet packages.
+
+## Overview
+
+The project uses GitHub Actions for CI/CD with the following key components:
+
+1. **GitVersion** - Handles automatic semantic versioning
+2. **NuGet Package Build** - Builds and packages the library
+3. **GitHub Packages** - Hosts NuGet packages for development
+4. **NuGet.org** - Hosts public releases
+
+## Workflow Files
+
+The repository contains the following workflow files:
+
+- `.github/workflows/nuget-publish.yml` - Main pipeline that builds, tests, versions, and publishes packages
+- `.github/workflows/release.yml` - Dedicated workflow for creating releases (manually triggered)
+
+## Versioning Strategy
+
+We use GitVersion to automatically calculate semantic versions based on Git history and branching patterns:
+
+- **GitVersion.yml** - Defines the versioning rules for different branches
+
+### Branch-Based Versioning
+
+Versions are automatically calculated based on the branch:
+
+- **main**: Production releases with clean semantic versions (e.g., `1.2.3`)
+- **develop**: Beta pre-releases (e.g., `1.3.0-beta.1`)
+- **feature branches**: Alpha pre-releases (e.g., `1.3.0-alpha.feature-name.1`)
+- **hotfix branches**: Release candidates (e.g., `1.2.4-rc.hotfix-name.1`)
+- **PR branches**: Pre-release with PR number (e.g., `1.3.0-pr.123.1`)
+
+### Commit Messages for Versioning
+
+You can control version increments using special commit messages:
+
+- `+semver: major` or `+semver: breaking` - Bump major version
+- `+semver: minor` or `+semver: feature` - Bump minor version
+- `+semver: patch` or `+semver: fix` - Bump patch version
+- `+semver: none` or `+semver: skip` - Don't increment version
+
+## Build Process
+
+The build process follows these steps:
+
+1. Checkout code with full history (required for GitVersion)
+2. Set up .NET environment
+3. Calculate version using GitVersion
+4. Restore dependencies
+5. Build with the version from GitVersion
+6. Run tests
+7. Package as NuGet with appropriate version
+8. Upload package as artifact
+
+## Publishing
+
+Packages are published based on the branch and event:
+
+- **GitHub Packages**:
+  - All packages from `main` branch
+  - All packages from manual workflow runs
+
+- **NuGet.org**:
+  - Only packages from `main` branch
+  - Only for push events (not PRs)
+  - Requires `NUGET_API_KEY` secret
+
+## Creating Releases
+
+To create a new release:
+
+1. Go to the "Actions" tab in GitHub
+2. Select the "Create Release" workflow
+3. Click "Run workflow"
+4. Select the type of release (patch, minor, major)
+5. Click "Run workflow" again
+
+This will:
+
+1. Create a commit with the selected semver increment
+2. Push it to the main branch
+3. Create a Git tag for the new version
+4. Trigger the main workflow to build and publish the package
+
+## Required Secrets
+
+The pipeline requires the following GitHub secrets:
+
+- `GITHUB_TOKEN` (automatically provided by GitHub)
+- `NUGET_API_KEY` (for publishing to NuGet.org)
+- `RELEASE_PAT` (for the release workflow to push to protected branches)
+
+## NuGet Package Metadata
+
+Package metadata is defined in `Directory.Build.props` including:
+
+- Authors
+- Description
+- License
+- Project URL
+- Repository info
+- Tags
+- Icon
+- README
+
+## Debugging
+
+If you encounter issues with the pipeline:
+
+1. Check the GitHub Actions logs
+2. Look for GitVersion output (shows calculated version)
+3. Review the package artifacts for correct versioning
+4. Ensure required secrets are configured
diff --git a/packages/sdk/C#/Directory.Build.props b/packages/sdk/C#/Directory.Build.props
new file mode 100644
index 00000000..2d03a99f
--- /dev/null
+++ b/packages/sdk/C#/Directory.Build.props
@@ -0,0 +1,54 @@
+<Project>
+  <PropertyGroup>
+    <!-- Package Information -->
+    <Authors>Your Company Name</Authors>
+    <Company>Your Company Name</Company>
+    <Copyright>Copyright © $(Company) $([System.DateTime]::Now.Year)</Copyright>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <PackageProjectUrl>https://github.com/$(GITHUB_REPOSITORY)</PackageProjectUrl>
+    <RepositoryUrl>https://github.com/$(GITHUB_REPOSITORY)</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+    <PackageIcon>icon.png</PackageIcon>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PackageTags>agent-protocol;client;api</PackageTags>
+    <Description>Client library for interacting with the Agent Protocol API</Description>
+    
+    <!-- Build Configuration -->
+    <LangVersion>latest</LangVersion>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <NoWarn>$(NoWarn);CS1591</NoWarn>
+    
+    <!-- Source Link -->
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
+    
+    <!-- NuGet Configuration -->
+    <IsPackable>true</IsPackable>
+    <PackageOutputPath>$(MSBuildThisFileDirectory)nupkgs</PackageOutputPath>
+    <VersionPrefix>1.0.0</VersionPrefix>
+    <ContinuousIntegrationBuild Condition="'$(GITHUB_ACTIONS)' == 'true'">true</ContinuousIntegrationBuild>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <!-- Include README and icon in the package -->
+    <None Include="$(MSBuildThisFileDirectory)assets\icon.png" Pack="true" PackagePath="\" Visible="false" />
+    <None Include="$(MSBuildThisFileDirectory)README.md" Pack="true" PackagePath="\" />
+    
+    <!-- Source Link -->
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <!-- Deterministic builds for CI -->
+  <PropertyGroup Condition="'$(GITHUB_ACTIONS)' == 'true'">
+    <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/packages/sdk/C#/GitVersion.yml b/packages/sdk/C#/GitVersion.yml
new file mode 100644
index 00000000..0dac87fe
--- /dev/null
+++ b/packages/sdk/C#/GitVersion.yml
@@ -0,0 +1,54 @@
+mode: Mainline
+major-version-bump-message: '\+semver:\s?(breaking|major)'
+minor-version-bump-message: '\+semver:\s?(feature|minor)'
+patch-version-bump-message: '\+semver:\s?(fix|patch)'
+no-bump-message: '\+semver:\s?(none|skip)'
+
+# Branch config
+branches:
+  main:
+    regex: ^main$
+    tag: ""
+    increment: Patch
+    prevent-increment-of-merged-branch-version: true
+    track-merge-target: false
+    is-release-branch: true
+    is-mainline: true
+
+  develop:
+    regex: ^develop$
+    tag: "beta"
+    increment: Minor
+    prevent-increment-of-merged-branch-version: false
+    track-merge-target: true
+    is-release-branch: false
+    source-branches: ["main"]
+
+  feature:
+    regex: ^feature[/-]
+    tag: "alpha.{BranchName}"
+    increment: Inherit
+    source-branches: ["develop", "main"]
+    prevent-increment-of-merged-branch-version: false
+    track-merge-target: false
+
+  hotfix:
+    regex: ^hotfix[/-]
+    tag: "rc.{BranchName}"
+    increment: Patch
+    source-branches: ["main"]
+    prevent-increment-of-merged-branch-version: false
+    track-merge-target: false
+
+  pull-request:
+    regex: ^(pull|pull\-requests|pr)[/-]
+    tag: "pr.{BranchName}"
+    increment: Inherit
+    track-merge-target: false
+    tag-number-pattern: '[/-](?<number>\d+)[-/]'
+
+# Global settings
+ignore:
+  sha: []
+merge-message-formats: {}
+tag-prefix: "v"