We build tools for people and AI agents.

127.0.0.1:51148

$ node dist/src/cli.js call investigation.problemScan --json '{"tabId":"11"}'
// three findings from one page
{ "kind": "network", "method": "GET", "url": ".../api/prices",
  "status": 500, "statusText": "Internal Server Error" }
{ "kind": "error",
  "message": "TypeError: can't access property \"items\", cart is undefined",
  "url": ".../app.js" }
{ "kind": "network", "url": ".../favicon.ico", "status": 404 }

One call collects network, console and JavaScript errors from the current page.

127.0.0.1:51148

$ node dist/src/cli.js call investigation.traceError --json '{"tabId":"11","errorId":"error-23ba…"}'
{ "error": {
    "message": "TypeError: can't access property \"items\", cart is undefined",
    "stack": "at renderTotals (…/app.js:6:31)
             at <anonymous> (…/app.js:7:13)",
    "errorMessageName": "JSMSG_PROPERTY_FAIL_EXPR" } }

traceError goes from the message to the function and line in the source.

127.0.0.1:51148

$ node dist/src/cli.js call patch.apply --json '{"tabId":"11","kind":"css",
  "label":"Make Pay button readable","code":"#pay { background: #1f6feb; color: #fff; }"}'
{ "patchId": "patch-d8b53cbd-…",
  "status": "applied",
  "reversible": true,
  "mechanism": "adoptedStyleSheet",
  "ruleCount": 1 }

The fix goes into the page as a reversible patch with its own ID.

127.0.0.1:51148

$ node dist/src/cli.js call patch.revert --json '{"tabId":"11","patchId":"patch-d8b53cbd-…"}'
{ "patchId": "patch-d8b53cbd-…",
  "reverted": true }

One call puts the page back exactly as it was.