bugsnag_list_spans

// WHEN AI AGENTS USE THIS TOOL

AI agents call bugsnag_list_spans to retrieve information from SmartBear MCP without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

// WHY ENFORCE A POLICY ON BUGSNAG_LIST_SPANS

Even though bugsnag_list_spans only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

smartbear-mcp.yaml

tools:
  bugsnag_list_spans:
    rules:
      - action: allow

See the full SmartBear MCP policy for all 147 tools.

// DETAILS

Tool Name bugsnag_list_spans

Category Read

MCP Server SmartBear MCP MCP Server

Risk Level Low

// MORE SMARTBEAR MCP TOOLS

Destructive collaborator_delete_collaborator_remote_system_configuration Destructive reflect_cancel_suite_execution Destructive reflect_delete_previous_step Destructive swagger_delete_portal_product Destructive swagger_delete_table_of_contents Execute collaborator_reviewservice_action Execute contract-testing_can_i_deploy Execute qmetry_link_issues_to_testcase_run

View all 147 tools →

// RELATED READING

// FAQ

What does the bugsnag_list_spans tool do? +

Get individual spans belonging to a span group **Parameters:** - projectId (string): Unique identifier of the project. This is optional if a current project is set and is used to set the current project for BugSnag tools. - spanGroupId (string) *required*: ID of the span group - sort (enum): Field to sort by - direction (enum): Sort direction for ordering results (default: "desc") - perPage (number): How many results to return per page. (default: 30) - nextUrl (string): URL for retrieving the next page of results. Use the value in the previous response to get the next page when more results are available. Only values provided in the output from this tool can be used. Do not attempt to construct it manually. - filters (record<string, array>): Apply filters to narrow down the span group list. Use the List Trace Fields tool to discover available filter fields. Time filters support extended ISO 8601 format (e.g. 2018-05-20T00:00:00Z) or relative format (e.g. 7d, 24h). (default: {"span.since":[{"type":"eq","value":"7d"}]}) **Use Cases:** 1. Analyze individual slow operations 2. Debug performance issues by examining specific traces 3. Find patterns in operation attributes **Examples:** 1. Get slowest spans for an operation ```json { "spanGroupId": "[HttpClient]GET-api.example.com", "sort": "duration", "direction": "desc", "perPage": 10 } ``` Expected Output: Array of the 10 slowest span instances 2. Get spans filtered by OS with pagination ```json { "spanGroupId": "[HttpClient]GET-api.example.com", "sort": "timestamp", "filters": { "os.name": [ { "type": "eq", "value": "iOS" } ] }, "nextUrl": "/projects/123/spans?offset=30&per_page=30" } ``` Expected Output: Array of spans from iOS devices with next page navigation **Hints:** 1. Sort by duration descending to find the slowest instances 2. Each span includes trace ID for further investigation. It is categorised as a Read tool in the SmartBear MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on bugsnag_list_spans? +

Add a rule in your Intercept YAML policy under the tools section for bugsnag_list_spans. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the SmartBear MCP MCP server.

What risk level is bugsnag_list_spans? +

bugsnag_list_spans is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit bugsnag_list_spans? +

Yes. Add a rate_limit block to the bugsnag_list_spans rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block bugsnag_list_spans completely? +

Set action: deny in the Intercept policy for bugsnag_list_spans. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides bugsnag_list_spans? +

bugsnag_list_spans is provided by the SmartBear MCP MCP server (@smartbear/mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on SmartBear MCP