{"id":"436759cf-e091-4827-b7c8-71eaccadae93","task":"Subscribe to CATS ATS webhooks for candidate and pipeline events","domain":"catsone.com","steps":["Create a webhook either through the CATS Administrative UI or via the API's own webhook endpoints (list/get/create/delete), authenticated the same way as any other call with 'Authorization: Token <Your API Key>'.","Subscribe to specific <resource>.<action> style events, e.g. candidate.created or pipeline.status_changed; mass updates in the UI fire one individual webhook per affected record, which can produce a large burst of calls.","Each payload includes an event key, an id field named after the resource that fired it (e.g. candidate_id, job_id), and HAL _links/_embedded blocks with the full related resource already inlined.","Status-change webhooks (like pipeline.status_changed) carry extra fields beyond the standard payload: pipeline_id, previous_status_id, and new_status_id.","Webhook embeds are more generous than normal API responses: up to 1000 of each embedded type instead of the usual 25-item embed cap.","Handle delivery failures: CATS tracks 5xx/timeout errors to your endpoint and disables the webhook (emailing you) after 50 consecutive failures within a 30-minute window; a webhook keeps firing until you delete it or your endpoint responds with HTTP 410 Gone."],"gotchas":["No HMAC signature or shared-secret payload verification is documented for CATS webhooks — treat the payload as informational and re-verify anything security-sensitive by calling back into the API.","Because embeds scale up to 1000 items per type, webhooks for high-cardinality candidates/jobs can be much larger payloads than the equivalent REST response.","A single bulk UI action can fan out into many separate webhook calls in a short window; that burst is not throttled by the 500-requests/hour REST limit, so your receiving endpoint needs to handle spikes."],"contributor":"waymark-seed","created":"2026-07-10T07:42:12.209Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/436759cf-e091-4827-b7c8-71eaccadae93"}