chore: remove the mcp autoembeddings feature

.github/dependabot.yml

@@ -29,7 +29,6 @@ updates:
         patterns:
           - ai
           - "@ai-sdk/*"
-          - voyage-ai-provider
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

README.md

@@ -398,7 +398,6 @@ The MongoDB MCP Server can be configured using multiple methods, with the follow
 | `MDB_MCP_CONNECTION_STRING` / `--connectionString`                                             | `<not set>`                                                                                                                                        | MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.                                       |
 | `MDB_MCP_DISABLED_TOOLS` / `--disabledTools`                                                   | `""`                                                                                                                                               | Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.                                                                                          |
 | `MDB_MCP_DRY_RUN` / `--dryRun`                                                                 | `false`                                                                                                                                            | When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.                                                                            |
-| `MDB_MCP_EMBEDDINGS_VALIDATION` / `--embeddingsValidation`                                     | `true`                                                                                                                                             | When set to false, disables validation of embeddings dimensions.                                                                                                                                  |
 | `MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS` / `--exportCleanupIntervalMs`                             | `120000`                                                                                                                                           | Time in milliseconds between export cleanup cycles that remove expired export files.                                                                                                              |
 | `MDB_MCP_EXPORT_TIMEOUT_MS` / `--exportTimeoutMs`                                              | `300000`                                                                                                                                           | Time in milliseconds after which an export is considered expired and eligible for cleanup.                                                                                                        |
 | `MDB_MCP_EXPORTS_PATH` / `--exportsPath`                                                       | see below\*                                                                                                                                        | Folder to store exported data files.                                                                                                                                                              |
@@ -421,8 +420,6 @@ The MongoDB MCP Server can be configured using multiple methods, with the follow
 | `MDB_MCP_READ_ONLY` / `--readOnly`                                                             | `false`                                                                                                                                            | When set to true, only allows read, connect, and metadata operation types, disabling create/update/delete operations.                                                                             |
 | `MDB_MCP_TELEMETRY` / `--telemetry`                                                            | `"enabled"`                                                                                                                                        | When set to disabled, disables telemetry collection.                                                                                                                                              |
 | `MDB_MCP_TRANSPORT` / `--transport`                                                            | `"stdio"`                                                                                                                                          | Either 'stdio' or 'http'.                                                                                                                                                                         |
-| `MDB_MCP_VECTOR_SEARCH_DIMENSIONS` / `--vectorSearchDimensions`                                | `1024`                                                                                                                                             | Default number of dimensions for vector search embeddings.                                                                                                                                        |
-| `MDB_MCP_VECTOR_SEARCH_SIMILARITY_FUNCTION` / `--vectorSearchSimilarityFunction`               | `"euclidean"`                                                                                                                                      | Default similarity function for vector search: 'euclidean', 'cosine', or 'dotProduct'.                                                                                                            |
 | `MDB_MCP_VOYAGE_API_KEY` / `--voyageApiKey`                                                    | `""`                                                                                                                                               | API key for Voyage AI embeddings service (required for vector search operations with text-to-embedding conversion).                                                                               |
 
 #### Logger Options
@@ -553,8 +550,8 @@ You can disable telemetry using:
 
 The MongoDB MCP Server may offer functionality that is still in development and may change in future releases. These features are considered "preview features" and are not enabled by default. Generally, these features are well tested, but may not offer the complete functionality we intend to provide in the final release or we'd like to gather feedback before making them generally available. To enable one or more preview features, use the `previewFeatures` configuration option.
 
-- For **environment variable** configuration, use a comma-separated string: `export MDB_MCP_PREVIEW_FEATURES="search,feature1,feature2"`.
-- For **command-line argument** configuration, use a space-separated string: `--previewFeatures search feature1 feature2`.
+- For **environment variable** configuration, use a comma-separated string: `export MDB_MCP_PREVIEW_FEATURES="feature1,feature2"`.
+- For **command-line argument** configuration, use a space-separated string: `--previewFeatures feature1 feature2`.
 
 List of available preview features:
 
@@ -566,6 +563,7 @@ List of available preview features:
   - Start, stop, modify, and monitor stream processors.
   - Diagnose processor issues with combined health reports including state, stats, and connection health.
   - Requires Atlas API credentials with appropriate stream processing permissions. See [Atlas API Permissions](#atlas-api-permissions).
+- `mcpUI` - Enables an optional web-based UI for interacting with the MCP server.
 
 ### Atlas API Access
 

package.json

@@ -120,6 +120,7 @@
     "@vitejs/plugin-react": "^5.1.4",
     "@vitest/coverage-v8": "^3.2.4",
     "@vitest/eslint-plugin": "^1.6.9",
+    "ai": "^6.0.116",
     "concurrently": "^9.2.1",
     "duplexpair": "^1.0.2",
     "eslint": "^9.34.0",
@@ -158,7 +159,6 @@
     "@mongodb-js/devtools-proxy-support": "^0.7.5",
     "@mongosh/arg-parser": "^5.0.2",
     "@mongosh/service-provider-node-driver": "^5.0.2",
-    "ai": "^6.0.116",
     "bson": "^7.2.0",
     "express": "^5.1.0",
     "lru-cache": "^11.2.6",
@@ -172,7 +172,6 @@
     "oauth4webapi": "^3.8.5",
     "openapi-fetch": "^0.15.0",
     "ts-levenshtein": "^1.0.7",
-    "voyage-ai-provider": "^3.0.0",
     "yaml": "^2.8.1",
     "zod": "^3.25.76",
     "prom-client": "^15.1.3"

server.json

@@ -320,13 +320,6 @@
           "isRequired": false,
           "format": "boolean"
         },
-        {
-          "type": "named",
-          "name": "--embeddingsValidation",
-          "description": "When set to false, disables validation of embeddings dimensions.",
-          "isRequired": false,
-          "format": "boolean"
-        },
         {
           "type": "named",
           "name": "--exportCleanupIntervalMs",
@@ -471,19 +464,6 @@
           "description": "Either 'stdio' or 'http'.",
           "isRequired": false
         },
-        {
-          "type": "named",
-          "name": "--vectorSearchDimensions",
-          "description": "Default number of dimensions for vector search embeddings.",
-          "isRequired": false,
-          "format": "number"
-        },
-        {
-          "type": "named",
-          "name": "--vectorSearchSimilarityFunction",
-          "description": "Default similarity function for vector search: 'euclidean', 'cosine', or 'dotProduct'.",
-          "isRequired": false
-        },
         {
           "type": "named",
           "name": "--voyageApiKey",
@@ -803,13 +783,6 @@
           "isRequired": false,
           "format": "boolean"
         },
-        {
-          "type": "named",
-          "name": "--embeddingsValidation",
-          "description": "When set to false, disables validation of embeddings dimensions.",
-          "isRequired": false,
-          "format": "boolean"
-        },
         {
           "type": "named",
           "name": "--exportCleanupIntervalMs",
@@ -954,19 +927,6 @@
           "description": "Either 'stdio' or 'http'.",
           "isRequired": false
         },
-        {
-          "type": "named",
-          "name": "--vectorSearchDimensions",
-          "description": "Default number of dimensions for vector search embeddings.",
-          "isRequired": false,
-          "format": "number"
-        },
-        {
-          "type": "named",
-          "name": "--vectorSearchSimilarityFunction",
-          "description": "Default similarity function for vector search: 'euclidean', 'cosine', or 'dotProduct'.",
-          "isRequired": false
-        },
         {
           "type": "named",
           "name": "--voyageApiKey",

src/common/config/parseUserConfig.ts

@@ -187,20 +187,5 @@ function getWarnings(config: Partial<UserConfig>, cliArguments: string[]): strin
         );
     }
 
-    const searchEnabled = config.previewFeatures?.includes("search");
-    const embeddingsProviderConfigured = !!config.voyageApiKey;
-    if (searchEnabled && !embeddingsProviderConfigured) {
-        warnings.push(`\
-Warning: Vector search is enabled but no embeddings provider is configured.
-- Set an embeddings provider configuration option to enable auto-embeddings during document insertion and text-based queries with $vectorSearch.\
-`);
-    }
-
-    if (!searchEnabled && embeddingsProviderConfigured) {
-        warnings.push(`\
-Warning: An embeddings provider is configured but the 'search' preview feature is not enabled.
-- Enable vector search by adding 'search' to the 'previewFeatures' configuration option, or remove the embeddings provider configuration if not needed.\
-`);
-    }
     return warnings;
 }

src/common/config/userConfig.ts

@@ -9,7 +9,7 @@ import {
     onlySubsetOfBaseValueOverride,
     parseBoolean,
 } from "./configUtils.js";
-import { monitoringServerFeatureValues, previewFeatureValues, similarityValues } from "../schemas.js";
+import { monitoringServerFeatureValues, previewFeatureValues } from "../schemas.js";
 import { argMetadata, CliOptionsSchema as MongoshCliOptionsSchema } from "@mongosh/arg-parser/arg-parser";
 import { TRANSPORT_PAYLOAD_LIMITS } from "../../transports/constants.js";
 
@@ -199,21 +199,6 @@ const ServerConfigSchema = z4.object({
             "API key for Voyage AI embeddings service (required for vector search operations with text-to-embedding conversion)."
         )
         .register(configRegistry, { isSecret: true, overrideBehavior: "not-allowed" }),
-    embeddingsValidation: z4
-        .preprocess(parseBoolean, z4.boolean())
-        .default(true)
-        .describe("When set to false, disables validation of embeddings dimensions.")
-        .register(configRegistry, { overrideBehavior: oneWayOverride(true) }),
-    vectorSearchDimensions: z4.coerce
-        .number()
-        .default(1024)
-        .describe("Default number of dimensions for vector search embeddings.")
-        .register(configRegistry, { overrideBehavior: "override" }),
-    vectorSearchSimilarityFunction: z4
-        .enum(similarityValues)
-        .default("euclidean")
-        .describe("Default similarity function for vector search: 'euclidean', 'cosine', or 'dotProduct'.")
-        .register(configRegistry, { overrideBehavior: "override" }),
     previewFeatures: z4
         .preprocess(
             (val: string | string[] | undefined) => commaSeparatedToArray(val),

src/common/errors.ts

@@ -4,10 +4,8 @@ export enum ErrorCodes {
     ForbiddenCollscan = 1_000_002,
     ForbiddenWriteOperation = 1_000_003,
     AtlasSearchNotSupported = 1_000_004,
-    NoEmbeddingsProviderConfigured = 1_000_005,
     AtlasVectorSearchIndexNotFound = 1_000_006,
     AtlasVectorSearchInvalidQuery = 1_000_007,
-    Unexpected = 1_000_008,
 }
 
 export class MongoDBError<ErrorCode extends ErrorCodes = ErrorCodes> extends Error {

src/common/schemas.ts

@@ -3,7 +3,3 @@ export type PreviewFeature = (typeof previewFeatureValues)[number];
 
 export const monitoringServerFeatureValues = ["health-check", "metrics"] as const;
 export type MonitoringServerFeature = (typeof monitoringServerFeatureValues)[number];
-
-export const similarityValues = ["cosine", "euclidean", "dotProduct"] as const;
-
-export type Similarity = (typeof similarityValues)[number];