List scheduled jobs (launchd on macOS, systemd on Linux) with exit status.

Args: prefix: only return jobs whose label starts with this string, e.g. "com.mycompany." to skip the operating system's own jobs.

Return only the scheduled jobs whose last run exited with an error.

Report logs that have not been written to recently.

A daily job whose log is 26 hours old has not run. This is the cheapest liveness check available and it requires no instrumentation.

Scan the tail of recently-written logs for error signatures.

Only recent files and only their last lines, so that failures fixed last week do not keep reappearing in the report.

Check an integration by its payload, not its status code.

Set require_json_path to the part of the response that proves the integration is alive — for example "data" for a list of connected accounts. An endpoint returning HTTP 200 with an empty list is a disconnected integration, and this is the check that catches it.

Find functions marked TODO that still return a hardcoded value.

Catches the reporting function that reads its input file, ignores it, and returns the constant it was seeded with during development.

Run every check and return one prioritised report.

This is the tool to call first. It answers: what on this machine is broken right now and nobody has been told?