Feature guide
Choose the question you need to answer.
Try a guided investigation
Find out why a catalog looks emptyTrace one refresh from the app to the response and distinguish an empty collection from a missing body.Test an empty catalog with a response rewriteChange one JSON field for one test client, check the next response, then restore the original behavior.Diagnose a subtitle switch with an HLS fixtureUse a known cue and a deliberate silent interval to distinguish subtitle delivery from what the player renders.
Find out what happened
Table & ExplorerFind the request that changed the screen, even when a refresh starts dozens of transfers.Read a timeline and export a waterfallFind whether time was spent before, during, or after an observed request.Recordings, bookmarks & replayKeep the evidence from a rare failure after the live session ends.Preserve previous-session evidenceChoose between saving a recovery copy, reopening a recording, and making a new observation.
Recreate the conditions
Map Local, Map Remote & response rewritesChange the one part of an API response that matters, or serve an entire test scenario.Test a JSON change from a bookmarkPreview a patch against a saved response, then check whether the next request actually received it.Trace a missing or replaced imageFollow artwork from the catalog field to the image request and the pixels on the test device.Share a repeatable scenario with an Effect BundleCarry coordinated rules and assets to another test session, then verify what they served.Network conditioning & throttlingSeparate a slow transfer from a slow screen or an ineffective cache refresh.Media investigation & the HLS serverRecreate a live stream failure on a real device without waiting for the next broadcast.
Investigate with an agent
Agent workflowsGive a coding agent a narrow network question and evidence it can check.Analyze traffic on the MacGive an agent a scoped question about captured traffic instead of sending it the entire response.Calculate over a selected captureCount requests by status or summarize a JSON field with exact decimal arithmetic.Measure the cost of an investigationCompare the calls, response bytes and local analyses behind two answers.