feat(search): add code search functionality for Azure DevOps repos

Implement search_code tool for searching across repositories in Azure DevOps.
This includes API integration, documentation, schemas, and comprehensive tests.
The search tool supports filtering by repository, path, branch, and code element types,
as well as pagination and content retrieval options.

Author: Tiberriver256

.husky/pre-commit

@@ -168,6 +168,12 @@ For repository-specific tool documentation, see the [Repositories Tools Guide](d
 - `list_work_items`: List work items in a project
 - `manage_work_item_link`: Add, remove, or update links between work items
 
+### Search Tools
+
+- `search_code`: Search for code across repositories in a project
+
+For search-specific tool documentation, see the [Search Tools Guide](docs/tools/search.md).
+
 ## Contributing
 
 Contributions are welcome! Please see [CONTRIBUTING.md](CONTRIBUTING.md) for contribution guidelines.

README.md

@@ -0,0 +1,94 @@
+# Search Tools
+
+This document describes the search tools available in the Azure DevOps MCP server.
+
+## search_code
+
+The `search_code` tool allows you to search for code across repositories in an Azure DevOps project. It uses the Azure DevOps Search API to find code matching your search criteria and can optionally include the full content of the files in the results.
+
+### Parameters
+
+| Parameter | Type | Required | Description |
+|-----------|------|----------|-------------|
+| searchText | string | Yes | The text to search for in the code |
+| projectId | string | Yes | The ID or name of the project to search in |
+| filters | object | No | Optional filters to narrow search results |
+| filters.Repository | string[] | No | Filter by repository names |
+| filters.Path | string[] | No | Filter by file paths |
+| filters.Branch | string[] | No | Filter by branch names |
+| filters.CodeElement | string[] | No | Filter by code element types (function, class, etc.) |
+| top | number | No | Number of results to return (default: 100, max: 1000) |
+| skip | number | No | Number of results to skip for pagination (default: 0) |
+| includeSnippet | boolean | No | Whether to include code snippets in results (default: true) |
+| includeContent | boolean | No | Whether to include full file content in results (default: true) |
+
+### Response
+
+The response includes:
+
+- `count`: The total number of matching files
+- `results`: An array of search results, each containing:
+  - `fileName`: The name of the file
+  - `path`: The path to the file
+  - `content`: The full content of the file (if `includeContent` is true)
+  - `matches`: Information about where the search text was found in the file
+  - `collection`: Information about the collection
+  - `project`: Information about the project
+  - `repository`: Information about the repository
+  - `versions`: Information about the versions of the file
+- `facets`: Aggregated information about the search results, such as counts by repository, path, etc.
+
+### Examples
+
+#### Basic Search
+
+```json
+{
+  "searchText": "function searchCode",
+  "projectId": "MyProject"
+}
+```
+
+#### Search with Filters
+
+```json
+{
+  "searchText": "function searchCode",
+  "projectId": "MyProject",
+  "filters": {
+    "Repository": ["MyRepo"],
+    "Path": ["/src"],
+    "Branch": ["main"],
+    "CodeElement": ["function", "class"]
+  }
+}
+```
+
+#### Search with Pagination
+
+```json
+{
+  "searchText": "function",
+  "projectId": "MyProject",
+  "top": 10,
+  "skip": 20
+}
+```
+
+#### Search without File Content
+
+```json
+{
+  "searchText": "function",
+  "projectId": "MyProject",
+  "includeContent": false
+}
+```
+
+### Notes
+
+- The search is performed using the Azure DevOps Search API, which is separate from the core Azure DevOps API.
+- The search API uses a different base URL (`almsearch.dev.azure.com`) than the regular Azure DevOps API.
+- When `includeContent` is true, the tool makes additional API calls to fetch the full content of each file in the search results.
+- The search API supports a variety of search syntax, including wildcards, exact phrases, and boolean operators. See the [Azure DevOps Search documentation](https://learn.microsoft.com/en-us/azure/devops/project/search/get-started-search?view=azure-devops) for more information.
+- The `CodeElement` filter allows you to filter by code element types such as `function`, `class`, `method`, `property`, `variable`, `comment`, etc.

docs/tools/search.md

@@ -0,0 +1,3 @@
+export * from './schemas';
+export * from './types';
+export * from './search-code';

src/features/search/index.ts

@@ -0,0 +1,47 @@
+import { z } from 'zod';
+
+/**
+ * Schema for searching code in Azure DevOps repositories
+ */
+export const SearchCodeSchema = z.object({
+  searchText: z.string().describe('The text to search for'),
+  projectId: z.string().describe('The ID or name of the project to search in'),
+  filters: z
+    .object({
+      Repository: z
+        .array(z.string())
+        .optional()
+        .describe('Filter by repository names'),
+      Path: z.array(z.string()).optional().describe('Filter by file paths'),
+      Branch: z.array(z.string()).optional().describe('Filter by branch names'),
+      CodeElement: z
+        .array(z.string())
+        .optional()
+        .describe('Filter by code element types (function, class, etc.)'),
+    })
+    .optional()
+    .describe('Optional filters to narrow search results'),
+  top: z
+    .number()
+    .int()
+    .min(1)
+    .max(1000)
+    .default(100)
+    .describe('Number of results to return (default: 100, max: 1000)'),
+  skip: z
+    .number()
+    .int()
+    .min(0)
+    .default(0)
+    .describe('Number of results to skip for pagination (default: 0)'),
+  includeSnippet: z
+    .boolean()
+    .default(true)
+    .describe('Whether to include code snippets in results (default: true)'),
+  includeContent: z
+    .boolean()
+    .default(true)
+    .describe(
+      'Whether to include full file content in results (default: true)',
+    ),
+});