3.3.0

BoxLang AI Module 3.3.0 — Bedrock tool-use support for Claude models, MCP CORS fix, and housekeeping.

Released: May 2026

BoxLang AI 3.3.0 brings AWS Bedrock's Claude models up to feature parity with the direct Anthropic API by adding native tool/function calling support, alongside an MCP CORS fix and general housekeeping.

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✨ New Features

🪨 BedrockService Tool-Use Support for Claude Models

AWS Bedrock's Claude models now support native tool/function calling, matching the feature set of the direct Anthropic API. (#190)

• formatToolsForClaude() converts OpenAI-compatible tool schemas to the Claude-native input_schema format.
• executeBedrockTool() processes Claude tool_use blocks, invokes the registered tool, and appends tool_result messages back into the conversation.
• Multi-turn tool conversations are preserved by correctly handling structured content (arrays of tool_use/tool_result blocks) without flattening them via toString().

agent = aiAgent(
    name  : "BedrockToolAgent",
    model : aiModel( "bedrock", { params: { model: "anthropic.claude-3-5-sonnet-20241022-v2:0" } } ),
    tools : [ weatherTool, calcTool ]
)

response = agent.run( "What's 15% of the temperature in Miami?" )

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🪲 Fixed

• MCPRequestProcessor CORS parameter collision: Renamed the mcpServer parameter in handleCORSPreflight() to targetServer to avoid a case-insensitive name collision with the MCPServer import, which caused the stricter BoxLang compiler to reject the file and 500 every MCP request.

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🧠 Updated

• Removed obsolete scheduler test stubs (DataProcessingScheduler.bx, ReportingScheduler.bx).
• Added Spreadsheet Loader integration documentation to the README.

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📖 Documentation

• Working with Models — Provider configuration, including Bedrock
• AI Tools (Function Calling)