Codebase Search Tool - Filter by Directories

Context

Handle directory additional contexts for the CodebaseSearch tool introduced in Add CodebaseSearch Tool for Duo Chat (!192086 - merged)

References

• Usage, filter by directory path: #530591 (comment 2492838710)

Proposal

Update the CodebaseSearch tool to handle additional_context with category=directory. The expected payload is:

{
  category: 'directory',
  id: "dir:///Users/pamartiaga/Code/experiments/code-embeddings/test_documents/ai-assist/ai_gateway/api", # full path
  content: '',
  metadata: {
    'relativePath' => 'ai_gateway/api',
    'projectId' => "gid://gitlab/Project/74",
    'projectPathWithNamespace' => 'code-embeddings-test/ai-gateway'
  }
}