{"domain":"docs.cello.so","count":1,"changes":[{"captured_at":"2026-08-20T04:01:45","card_hash":"851724381d69cdf563e68dd85a51756a5b3816e541f3daf499bfb1e173eea383","previous_card_hash":null,"diff":{"skills_added":[{"id":"cello","name":"Cello","description":"Use when building or integrating referral programs, tracking referral conversions, setting up attribution flows, configuring reward payouts, or managing partner/affiliate programs. Agents should reach for this skill when implementing referral functionality in web or mobile apps, connecting payment gateways, debugging attribution issues, or optimizing referral program performance.","tags":[],"inputModes":null,"outputModes":null}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Cello"},{"field":"version","before":null,"after":"1.0.0"},{"field":"protocolVersion","before":null,"after":"0.3"},{"field":"url","before":null,"after":"https://docs.cello.so/"},{"field":"documentationUrl","before":null,"after":"https://docs.cello.so/"},{"field":"preferredTransport","before":null,"after":"HTTP+JSON"}],"other_changed":true,"is_empty":false,"human_summary":"added 1 skill · name ∅ → Cello · version ∅ → 1.0.0 · protocolVersion ∅ → 0.3 · url ∅ → https://docs.cello.so/ · documentationUrl ∅ → https://docs.cello.so/ · preferredTransport ∅ → HTTP+JSON"}}]}