OCI DB Dynamic MCP Server

[shyam2511]

Description

This PR introduces the OCI DB Dynamic MCP Server, a fully functional Model Context Protocol server that enables LLMs to interact with Oracle Cloud Infrastructure Database services.

Unlike static tool definitions, this server dynamically loads OCI specifications to generate tools on the fly, ensuring up-to-date compatibility with OCI APIs.

Key Features Implemented:

• Dynamic Tool Loading: Automatically parses OCI Python SDK specs to generate MCP tools.
• Resource Filtering: Startup logic to filter loaded tools via Env Vars (OCI_ALLOWED_RESOURCES ) filter to optimize context size and startup time.
• Type Mapping & Unflattening: Robust logic to map OCI complex objects to flat LLM-friendly arguments and reconstruction of payloads.
• Authentication: Integrated OCI SecurityTokenSigner and config file authentication.
• Comprehensive Testing: Added a full test suite covering all generated tools and core logic.

Fixes # (Initial Release / Feature Request ID)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

I have implemented a comprehensive test suite that validates both the dynamic tool generation and the API invocation logic.

• Unit Tests: Verified that build_tools_from_latest_spec correctly parses OCI specs and handles schema flattening.
• Integration Tests: Ran tests against live/mock OCI endpoints for key resources (database, db_system, autonomous_database) to verify payload reconstruction.
• Filter Logic: Verified that passing OCI_ALLOWED_RESOURCES filter as env var restricts the loaded toolset correctly.
• End-to-End: Validated the server connection using the FastMCP inspector and Cline Desktop.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[cboffa13]

Do we have tests for this file?

[cboffa13]

Much of these unit tests arent really asserting anything specific, just that the mock's are called. Is there anyway we can make sure the logic is being tested more thoroughly?