> ## Documentation Index > Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt > Use this file to discover all available pages before exploring further. # Count how many of an MCP server's tools need attention > Returns counts of an MCP server's tools that need attention. `new` is the number of tools the server offers that aren't imported here, including every tool you deliberately declined, so it isn't a problem indicator. `newSinceReview` is the subset of those that the server added since you last synced it. Clients should surface this count. It is 0 for a server that has never been synced. `changed` is the number of imported tools that have drifted, and `missing` is the number of imported tools that the server no longer offers. These two counts need attention. The counts are computed on each call, with no scheduler or background job, so each call makes one live round trip to your MCP server. An unreachable server returns 200 with `unreachable: true` instead of a transport error. If the server was reached but refused the request (HTTP 401 or 403), the response also includes `authFailed: true`, so a client can report that the server refused the request instead of that it couldn't be reached. ## OpenAPI ````yaml https://api-trial.cognigy.ai/swagger/openapi.json get /mcp-servers/{id}/drift openapi: 3.0.3 info: contact: email: support@example.com name: API Support description: API for managing agents and related resources license: name: Apache 2.0 url: http://www.apache.org/licenses/LICENSE-2.0.html termsOfService: http://swagger.io/terms/ title: Agents API version: '1.0' servers: - url: https://api-trial.cognigy.ai/v1 security: - ApiKey: [] tags: - name: Agents - name: Brand personas - name: Tools - name: Built-in tools - name: Skills - name: Built-in skills - name: MCP servers - name: Tool references paths: /mcp-servers/{id}/drift: get: tags: - MCP servers summary: Count how many of an MCP server's tools need attention description: >- Returns counts of an MCP server's tools that need attention. `new` is the number of tools the server offers that aren't imported here, including every tool you deliberately declined, so it isn't a problem indicator. `newSinceReview` is the subset of those that the server added since you last synced it. Clients should surface this count. It is 0 for a server that has never been synced. `changed` is the number of imported tools that have drifted, and `missing` is the number of imported tools that the server no longer offers. These two counts need attention. The counts are computed on each call, with no scheduler or background job, so each call makes one live round trip to your MCP server. An unreachable server returns 200 with `unreachable: true` instead of a transport error. If the server was reached but refused the request (HTTP 401 or 403), the response also includes `authFailed: true`, so a client can report that the server refused the request instead of that it couldn't be reached. parameters: - description: The unique identifier for the mcp server. in: path name: id required: true schema: type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/internal_mcpservers.DriftSummaryResponse' description: OK '400': content: application/json: schema: $ref: >- #/components/schemas/github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailBadRequest description: Invalid ID format '403': content: application/json: schema: $ref: >- #/components/schemas/github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailForbidden description: Access denied '404': content: application/json: schema: $ref: >- #/components/schemas/github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailNotFound description: MCP server not found '500': content: application/json: schema: $ref: >- #/components/schemas/github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailInternalError description: Internal server error components: schemas: internal_mcpservers.DriftSummaryResponse: properties: authFailed: description: >- AuthFailed narrows an `unreachable` to the case where the server answered and refused the request (HTTP 401/403), which is a credential or `authType` problem rather than a network one. Never set without `unreachable`. example: false type: boolean changed: description: >- Changed is imported but the server's description or schema has drifted. example: 1 type: integer missing: description: >- Missing is imported but no longer offered; the row will fail at call time. example: 0 type: integer new: description: New is offered and not imported yet. example: 3 type: integer newSinceReview: description: >- NewSinceReview is offered, not imported, and absent from the catalogue recorded at the last sync — i.e. the server added it after the customer last looked. A SUBSET of New. Badge on this, never on New: New includes every tool the customer deliberately declined, so badging it warns forever about a healthy server. example: 1 type: integer unreachable: description: >- Unreachable says the counts are not answers because the server could not be reached. A state rather than a 502, because a client fans this out one call per server and renders badges progressively. Also set when the server WAS reached and refused us — see AuthFailed. The counts are equally meaningless either way, so a client that reads only this field stays correct. example: false type: boolean type: object github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailBadRequest: properties: detail: example: request body validation failed type: string errors: items: $ref: >- #/components/schemas/github_com_cognigy_ai-agents-v2_internal_middleware.FieldError type: array instance: example: /v1/{resource} type: string status: example: 400 type: integer title: example: Bad Request type: string traceId: example: api--a4d2f126-bec4-4544-a049-7c0cf08524ed type: string type: example: about:blank type: string type: object github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailForbidden: properties: detail: example: 'access denied: insufficient permissions' type: string instance: example: /v1/{resource}/{id} type: string status: example: 403 type: integer title: example: Forbidden type: string traceId: example: api--a4d2f126-bec4-4544-a049-7c0cf08524ed type: string type: example: about:blank type: string type: object github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailNotFound: properties: detail: example: the requested resource does not exist type: string instance: example: /v1/{resource}/{id} type: string status: example: 404 type: integer title: example: Not Found type: string traceId: example: api--a4d2f126-bec4-4544-a049-7c0cf08524ed type: string type: example: about:blank type: string type: object github_com_cognigy_ai-agents-v2_internal_middleware.ProblemDetailInternalError: properties: detail: example: internal server error type: string instance: example: /v1/{resource} type: string status: example: 500 type: integer title: example: Internal Server Error type: string traceId: example: api--a4d2f126-bec4-4544-a049-7c0cf08524ed type: string type: example: about:blank type: string type: object github_com_cognigy_ai-agents-v2_internal_middleware.FieldError: properties: field: type: string message: type: string type: object securitySchemes: ApiKey: description: '[Production] API key for production authentication' in: header name: X-API-Key type: apiKey ````