Implement Embedding Search Plugin

[Thuraabtech]

Things that are updated for embedding search issue:

I've moved embedding search related files into the plugins/tool_search/in_mem_embeddings.
comprehensive description for model_name.

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Summary by cubic

Adds an in-memory embedding-based tool search strategy as a plugin to enable semantic search. Registers the strategy in core, adds docs and tests, and supports optional Sentence-Transformers for better results.

• New Features

  • InMemEmbeddingsSearchStrategy ("in_mem_embeddings") with cosine similarity, in-memory caching, and a simple fallback when sentence-transformers isn’t installed.
  • Pluginized and auto-discoverable via entry point; also registered in core plugin_loader for immediate use.
  • Moved embedding files to plugins/tool_search/in_mem_embeddings with README plus unit, integration, and performance tests.

• Dependencies

  • Core: adds numpy; introduces an "embedding" optional extra with sentence-transformers and torch.
  • Plugin: supports [embedding] extra for high-quality embeddings; no breaking changes, default search remains the same.

[Copilot]

Pull Request Overview

This PR moves embedding search functionality into a dedicated plugin structure and improves the model configuration with comprehensive documentation.

• Moved embedding search files from core to the new plugins/tool_search/in_mem_embeddings structure
• Added comprehensive description for the model_name field with examples and guidance
• Created complete plugin package with tests, documentation, and proper entry point registration

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
plugins/tool_search/in_mem_embeddings/tests/test_in_mem_embeddings_search.py	Comprehensive test suite covering initialization, embedding generation, search functionality, and error handling
plugins/tool_search/in_mem_embeddings/test_plugin.py	Basic plugin functionality verification script
plugins/tool_search/in_mem_embeddings/test_performance.py	Performance testing script for plugin with multiple tools and timing measurements
plugins/tool_search/in_mem_embeddings/test_integration.py	Integration test verifying plugin works with core UTCP system
plugins/tool_search/in_mem_embeddings/src/utcp_in_mem_embeddings/in_mem_embeddings_search.py	Main plugin implementation with enhanced model_name documentation
plugins/tool_search/in_mem_embeddings/src/utcp_in_mem_embeddings/init.py	Plugin registration entry point
plugins/tool_search/in_mem_embeddings/pyproject.toml	Plugin package configuration with proper dependencies
plugins/tool_search/in_mem_embeddings/README.md	Plugin documentation and installation instructions
plugins/tool_search/embedding/README.md	Legacy embedding plugin documentation update
core/src/utcp/plugins/plugin_loader.py	Core plugin loader updated to include in-memory embeddings
core/pyproject.toml	Core package updated with numpy dependency and embedding extras

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[Copilot]

The second docstring line 'just test' appears to be a placeholder comment that should be removed. It doesn't provide meaningful documentation.

Suggested change

"""just test"""

[cubic-dev-ai]

19 issues found across 11 files

_{React with 👍 or 👎 to teach cubic. You can also tag @cubic-dev-ai to give feedback, ask questions, or re-run the review.}

[cubic-dev-ai]

Imported symbol appears undefined in the codebase; this import is likely to raise ImportError at plugin load. Verify correct module path or function name.

Prompt for AI agents

Address the following comment on plugins/tool_search/in_mem_embeddings/src/utcp_in_mem_embeddings/__init__.py at line 1:

<comment>Imported symbol appears undefined in the codebase; this import is likely to raise ImportError at plugin load. Verify correct module path or function name.</comment>

<file context>
@@ -0,0 +1,7 @@
+from utcp.plugins.discovery import register_tool_search_strategy
+from utcp_in_mem_embeddings.in_mem_embeddings_search import InMemEmbeddingsSearchStrategyConfigSerializer
+
</file context>

[h3xxit]

implements #17

[h3xxit]

Please address the Cubic reviews. If you're not sure about some, you can let them for me to review

[h3xxit]

Also the base branch to merge into should be dev

[Thuraabtech]

Hi @h3xxit. I've updated the code by referring to all cubic-dev comments successfully. let me know if there are any more changes. Can't wait to implement embedding search 😊 haha.

[h3xxit]

@cubic-dev-ai review

[cubic-dev-ai]

@cubic-dev-ai review

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[cubic-dev-ai]

No issues found across 10 files