Summary

This PR upgrades boto3 and aioboto3 dependencies to support Amazon Bedrock AgentCore Control API, and includes authentication improvements for AgentCore JWT token handling.

Changes

🔧 Dependency Upgrades

• boto3: 1.36.0 → 1.40.76 (pyproject.toml) / 1.40.53 (requirements.txt)
  • Adds support for bedrock-agentcore-control API
  • Ensures compatibility with aioboto3 for async Bedrock calls
• aioboto3: 13.4.0 → 15.5.0
  • Updated to match boto3 version for async SageMaker/Bedrock calls

🔐 AgentCore Authentication Improvements

File: litellm/llms/bedrock/chat/agentcore/transformation.py

Fixed JWT token authentication priority in AgentCore sign_request:

• Before: Only checked optional_params.get('api_key')
• After: Prioritizes api_key parameter first, then falls back to optional_params
• Added debug logging to trace authentication flow (JWT Bearer vs AWS SigV4)

This fixes cases where the api_key parameter was passed but being ignored.

🐳 Docker Build Enhancement

File: docker/Dockerfile.dev

Updated Docker build to explicitly install wheel with [proxy] extras:

# Before
RUN pip install dist/*.whl

# After
RUN pip install $(ls dist/*.whl)[proxy]

Ensures boto3 1.40.73+ is included in the Docker image for AgentCore support.

📦 Dependency Adjustments

• semantic-router: Removed version upper bound (now * instead of >=0.1.12)
• litellm-proxy-extras: Updated version constraint
• litellm-enterprise: Updated version constraint

🛠️ Development Tools

• Added .gitignore patterns for Claude Code/Claude Flow artifacts
• Added taplo.toml for TOML formatting configuration (maintains 4-space indentation)

Testing

• ✅ Existing test suite passes with upgraded boto3
• ✅ AgentCore JWT authentication now correctly prioritizes api_key parameter
• ✅ Docker build includes proxy extras with boto3 1.40.73+

Breaking Changes

None - backward compatible upgrade.

Motivation

Support for Amazon Bedrock AgentCore Control API requires boto3 >= 1.40.0, and the authentication fix ensures proper JWT token handling for Cognito-authenticated AgentCore endpoints.