Opens a page in headless Chromium and lists the JSON GET requests it makes while it loads. Use it to choose the endpoint for check_read_recovery. Only successful page fetch and XHR reads are seen; native, IPC and service-worker traffic is not.

Loads the page healthy, then fails one GET endpoint with each fault kind and checks that the ready marker comes back: by itself (recovery "automatic") or after clicking retrySelector ("retry"). Returns an outcome per fault, why the healthy baseline failed if it did, the text the screen showed under a fault it did not recover from, and the report folder, which includes fix-brief.md and reproduce.mjs.

Starts a loopback HTTPS proxy for an app's own connections (an SDK, a main process, a CLI or a test run). Start the app or tests with the returned environment; connections pass until set_network_faults arms rules. Faults apply to whole connections per host: HTTPS stays end to end.

Replaces the armed rules, or removes them all with restore: true. Windows count from this call. Set dropOpen on a rule so clients that keep connections open have to reconnect.

Reports how many connections went through the proxy and, for the armed rules, how many each matched and faulted. A rule that faulted nothing means the app did not use the proxy or the host name is wrong.

Removes every fault, closes the proxy and returns its final summary.

Reads JavaScript and TypeScript sources, without running them, for two patterns: UNKNOWN_AS_EMPTY (a failed or unexpected read becomes an empty collection, so "unknown" looks like "none") and FAILURE_ONLY_LOGGED (a read stores its data when it succeeds, but its failure is only logged). Each suspect names the read to fail and the check that proves or dismisses it. Use changedSince "main" to scan only what a branch changed. Needs TypeScript in the project.

Compares reports of the same check from before and after a change, such as main and a branch, and returns a verdict (IMPROVED, PARTLY_IMPROVED, REGRESSED, MIXED, UNCHANGED, INCONCLUSIVE or NOT_COMPARABLE), what happened to each problem, and a Markdown block for a pull request. A problem counts as gone only when a complete run after the change checked it, so a run that stopped early is never a fix. Give several reports per side for repeated runs.

Call with baseline true before changing the code, and without it before saying the change is done. The plan file lists the checks that prove the change. Verify reruns them, compares the runs with the baseline, and scans the lines changed since the plan base for suspects. VERIFIED needs every check improved or clean with complete runs on both sides, and no suspect on a changed line; otherwise the reasons say what to resolve. Do not call a change done while it is NOT_VERIFIED.

Runs a Recovery Probe command that has no dedicated tool, such as check and discover for an Electron app or an attached browser, action, observe (with --steps, --network or --files), refresh, reads, windows, android --list or doctor (setup checks), and returns its exit code and output. Commands: check, discover, action, reads, windows, observe, refresh, android, doctor. Pass --json where the command supports it. See the package docs for each command's configuration.