Dead-man's-switch for cron jobs & AI agents. Import a crontab to arm one silent-miss alert per job.
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Scored across 7 tools
Each tool has a clearly distinct role: create, delete, status check, bulk import from crontab, pause/resume, ping, and alert configuraiton. No two tools appear to perform the same action, and the descriptions reinforce their separation.
Tool names consistently follow a verb_noun snake_case pattern (create_, delete_, pause_, ping_, set_). 'import_crontab' deviates slightly by naming the input format rather than the domain object, but it remains readable and fits the verb-based convention.
Seven tools is well within the ideal range for a focused heartbeat-monitoring server. Each tool represents a necessary operation without bloat or redundant overlap.
The core lifecycle is covered: create, ping, pause/resume, alert setup, status, delete, and bulk import. Missing update functionality for period/grace and no list-all-heartbeats operation are notable but non-blocking gaps for the core dead-man's-switch workflow.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
delete_heartbeatpause_heartbeatimport_crontabset_heartbeat_alertcreate_heartbeat2 fields changedInput schema / properties / email / descriptionPrevious value: -"Optional email address for DOWN and recovery alerts."New value: +"Email address for DOWN and recovery alerts. STRONGLY RECOMMENDED — without an email or webhook_url, Cronping tracks status but cannot notify anyone when the job stops, which defeats the purpose. Use your operator's email."Input schema / properties / webhook_url / descriptionPrevious value: -"Optional https webhook (Slack/Discord/generic) for alerts."New value: +"https webhook (Slack/Discord/generic) for DOWN and recovery alerts. Set this OR email so someone is actually notified when the monitored job goes silent."create_heartbeat2 fields changedInput schema / properties / pull_containsAdded value: +{
+ "description": "Optional (pull checks only). The fetched response body must contain this text to count as UP; otherwise Cronping alerts.",
+ "type": "string"
+}Input schema / properties / pull_urlAdded value: +{
+ "description": "Optional. If set, creates a PULL check instead: Cronping itself fetches this URL every period_seconds and alerts if it fails — use for a target that can't call a ping URL (a public health endpoint, status page, or API). No ping needed.",
+ "type": "string"
+}create_heartbeat1 field changedInput schema / properties / stuck_afterAdded value: +{
+ "description": "Optional. Flip to STUCK if the progress_token passed to ping_heartbeat stays identical for this many consecutive runs (default 3, 0 disables). Catches zombie runs that keep pinging but make no progress.",
+ "type": "number"
+}ping_heartbeat1 field changedInput schema / properties / progress_tokenAdded value: +{
+ "description": "Optional. A short digest/hash of this run's output (e.g. last-processed id, row count, content hash). If it stays identical across stuck_after consecutive runs, the check flips to STUCK and alerts.",
+ "type": "string"
+}create_heartbeatget_heartbeat_statusping_heartbeatDead-man switch monitors for cron & AI agents with dependency-cascade alerts. No account needed.
Dead-man switch for cron and webhooks: ingest URL, miss detection, alerts and a status feed.
Dead-man switch for AI agents & cron jobs: heartbeat with state capsule, alerts + resume links
Know when cron jobs and AI agents stop running: create monitors and check in from your agent.
Add one secure layer between your agents and this server.
