Query and manage App Inspector traces, spans, and events to review deployed LocalStack applications
AI agents call localstack-app-inspector to retrieve information from Localstack without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
arn | string | — | Filter traces or spans by resource ARN. This value is not sent to analytics. |
limit | number | — | Maximum number of results to return (1-1000) |
action | string | Yes | The App Inspector action to perform. Typical debugging flow: get-status, set-status to enabled if needed, run AWS workload, list-traces, list-spans for a trace, |
region | string | — | Filter by AWS region (e.g., 'us-east-1') |
status | string | — | Status to set. Required for set-status. Use enabled before running a workload you want to inspect. |
span_id | string | — | Span ID. Required for get-span, list-events, get-event, and list-iam-events. For list-events/list-iam-events, use '*' to query across all spans. |
version | number | — | Filter traces or spans by App Inspector schema version. |
event_id | string | — | Event ID. Required for get-event. |
span_ids | array | — | Span IDs to delete for delete-spans. Omit to delete all spans in the trace scope. |
trace_id | string | — | Trace ID. Required for get-trace, list-spans, get-span, delete-spans, list-events, get-event, and list-iam-events. For list-spans/list-events/list-iam-events, u |
trace_ids | array | — | Trace IDs to delete for delete-traces. Omit to delete all traces. |
account_id | string | — | Filter traces or spans by LocalStack AWS account ID. |
Parameters from the server's own tool schema.
The primary purpose is querying traces, spans, and events for review/inspection. While 'manage' is mentioned, the context suggests reviewing application telemetry data. The tool appears to be a read-oriented inspector for LocalStack application traces. The word 'manage' introduces some uncertainty about potential write capabilities, but the overall framing is observational.
From the tool's definition 'Query and manage App Inspector traces, spans, and events to review deployed LocalStack applications'
Risk signalsHigh parameter count (22 properties)
Attacks that exploit this kind of access
Query and manage App Inspector traces, spans, and events to review deployed LocalStack applications. It is categorised as a Read tool in the Localstack MCP Server, which means it retrieves data without modifying state.
localstack-app-inspector accepts 12 parameters: arn, limit, action, region, status, span_id, version, event_id, span_ids, trace_id, trace_ids, account_id. Required: action. The full parameter table on this page comes from the server's own tool schema.
Register the Localstack MCP server in PolicyLayer and add a rule for localstack-app-inspector: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Localstack. Nothing to install.
localstack-app-inspector is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the localstack-app-inspector rule in your PolicyLayer 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.
Set action: deny in the PolicyLayer policy for localstack-app-inspector. 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.
localstack-app-inspector is provided by the Localstack MCP server (@localstack/localstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →