.NET: Add MCP-based skills support (skill-md type)#6108
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- Add AgentMcpSkill, AgentMcpSkillResource, AgentMcpSkillsSource, and McpSkillIndex to Microsoft.Agents.AI.Mcp - Add AgentSkillsProviderBuilderMcpExtensions for DI integration - Add Agent_Step06_McpBasedSkills sample project - Add unit tests for AgentMcpSkillsSource - Update solution file and project references Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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The package is already alpha, so the [Experimental] attribute is redundant. Removed from both AgentSkillsProviderBuilderMcpExtensions and AgentMcpSkillsSource classes. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
…ples Embed an internal MCP server (launched via --server flag as a child process) that serves skill://index.json and skill://unit-converter/SKILL.md resources, replacing the external MCP_SKILLS_ENDPOINT dependency. The sample now uses StdioClientTransport and a fixed prompt instead of an interactive loop. Added SampleDefinition to AgentsSamples.cs for automated verification. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Summary
This PR adds support for discovering and invoking agent skills via MCP (Model Context Protocol) servers. It introduces the
AgentMcpSkill,AgentMcpSkillsSource, and related types to theMicrosoft.Agents.AI.Mcppackage. Currently, MCP skills of theskill-mdtype are supported.Changes
New types (
Microsoft.Agents.AI.Mcp/Skills/)AgentMcpSkill- Represents an agent skill backed by an MCP server toolAgentMcpSkillResource- Represents a resource associated with an MCP skillAgentMcpSkillsSource- Discovers and provides skills from MCP serversAgentSkillsProviderBuilderMcpExtensions- Extension methods for registering MCP skill sources via the builder patternMcpJsonContext- JSON serialization context for MCP skill typesMcpSkillIndex- Index for efficient skill lookup