v0.4.0

Added

• Client resources support with resources/list and resources/read methods (#160)
• _meta field support for Tool schema (#124)
• _meta field support for Prompt
• title field support for prompt arguments
• call_tool_raw method to client for accessing full tool responses (#149)
• Structured content support in tool responses (#147)
• AGENTS.md development guidance documentation (#134)
• Dependabot configuration for automated dependency updates (#138)

Changed

• Set default content to empty array instead of nil (#150)
• Improved prompt spec compliance (#153)
• Allow output schema to be array of objects (#144)
• Return 202 response code for accepted JSON-RPC notifications (#114)
• Added validation to MCP::Configuration setters (#145)
• Updated metaschema URI format for cross-OS compatibility

Fixed

• Client tools functionality and test coverage (#166)
• Client resources test for empty responses (#162)
• Documentation typos and incorrect examples (#157, #146)
• Removed redundant transport requires (#154)
• Cleaned up unused block parameters and magic comments