WP Debug Toolbar collects per-request data: the SQL log produced when SAVEQUERIES is on, the hooks fired during the request, and any PHP notices, warnings, or errors written to the debug.log file. The toolbar surfaces all of that inline, which is great for one request and chaotic once you want to compare patterns across requests.

SleekView stores each captured request in wp_debugtoolbar_snapshots and reads the configured debug.log path directly. Query duration, query origin (the file and function that issued the SQL), hook callback, hook order, and error severity become sortable, filterable columns. Group by URL to see which routes are the slowest, group by file to see which plugin is generating the most notices.

Inline filters route through the plugin's own helpers, so muting a known-noisy notice or pinning a slow query for follow-up uses the same hooks WP Debug Toolbar already provides. Snapshots older than the retention window are pruned automatically so the table never balloons.

Debugging WordPress is full of useful data trapped in one-request views. The toolbar panel is great when you can reproduce a bug while watching, and almost useless when the bug is intermittent or only fires under load. The debug.log file is great as a record and unreadable as a working surface.

WP Debug Toolbar already captures snapshots across requests and parses notices into structured fields, so the raw material is there. What was missing is the same kind of working surface that order, query, and CRM teams already get: filters that combine, sorts that mean something, saved views that match the work. Once captures live in a real grid, slow queries become a sortable column, noisy notices become a groupable hash, and hook origins become a filter.

The signal stops being something you discover by accident at 3 AM and starts being something you can scan over coffee.