New MCP Tool: Application Inspector

[sheltongraves]

Summary

• Adds a new localstack-app-inspector MCP tool for querying and managing App Inspector data
• Supports the full surface of the App Inspector API: status management, traces, spans, and events (including IAM policy evaluations)
• Registered the new tool in manifest.json

Actions supported

Action	Description
get-status	Get current App Inspector enabled/disabled state
set-status	Enable or disable App Inspector
list-traces	List traces with optional filters (service, region, account, operation, resource, ARN)
get-trace	Get a single trace by ID
delete-traces	Delete specific traces or all traces
list-spans	List spans within a trace
get-span	Get a single span by trace ID + span ID
delete-spans	Delete specific spans or all spans in a trace
list-events	List events for a span
list-iam-events	List IAM policy evaluation events for a span

All list actions support pagination (limit, pagination_token) and common filters.

Test plan

• Start LocalStack with App Inspector available
• Verify get-status returns current state
• Enable App Inspector via set-status and confirm state change
• Run some AWS operations and verify traces appear via list-traces
• Drill into a trace with list-spans and get-span
• Verify list-events and list-iam-events return events for a span
• Test delete actions (spans, traces)
• Verify 403 error returns a helpful "enable App Inspector" message

🤖 Generated with Claude Code

[HarshCasper]

I have made a few changes over the PR to add Pro feature preflight, analytics coverage, testsm README/server metadata, proper schema guidance for LLMs, MCP direct expected-tool entry, amongst others. This is now ready to ship 🚀