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| Webhook / API | Has existing ERP / CRM / payment system | Order management, customer data |
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| Human handoff | High-risk or complex situations | Complaints, contracts, disputes |
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|**A2A delegate**|**Operation belongs to a third-party platform that has its own brand agent**|**F&B: queue via Meituan agent; Hotel: booking via Ctrip agent; Fitness: class sign-up via booking platform agent**|
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| Mixed | Most real businesses | Auto-answer queries + escalate transactions |
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| Mixed | Most real businesses | Auto-answer queries + escalate transactions |
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Record the implementation method in the skill's `description` field.
@@ -151,9 +151,9 @@ Record the implementation method in the skill's `description` field.
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1.**Third-party agent address** — Ask: "Does [third-party platform] have a brand agent on ACN? If yes, provide its ACN slug or agent-card URL. If not, record as `tbd`."
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2.**Routing parameters** — Ask: "Does [third-party platform] need any identifiers to locate your specific business? For example, a store ID, merchant ID, property code, or doctor ID on their platform." Record these parameters (e.g. `shop_id: 4211342` for a restaurant branch; `hotel_id: bj-sanlitun-001` for a hotel property; `clinic_id: 88` + `doctor_id: 204` for a clinic) — they will be written into the trigger mapping table in Step 4c.
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3.**Client-side capability** — Ask: "Is there a skill the customer's agent could install to handle this operation directly using the parameters above? For example, `meituan-queue` for Meituan queue operations, `ctrip-booking` for Ctrip hotel reservations, `wechat-health-booking` for healthcare appointments." This enables a three-tier execution model written into the service contract:
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-**Tier 1** (preferred): customer agent has `capability_needed` skill installed → execute directly using the routing parameters provided by this brand agent
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-**Tier 2** (when available): third-party brand agent is on ACN → A2A delegate
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-**Tier 3** (fallback): neither available → human handoff or platform link
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-**Tier 1** (preferred): customer agent has `capability_needed` skill installed → execute directly using the routing parameters provided by this brand agent
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-**Tier 2** (when available): third-party brand agent is on ACN → A2A delegate
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-**Tier 3** (fallback): neither available → human handoff or platform link
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Record all three fields. They will be written into both the trigger mapping table (Step 4c) and the SERVICE-CONTRACT routing table (Step 4d).
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@@ -169,9 +169,11 @@ List hard limits and escalation triggers:
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Summarise all A2A delegate entries collected above into a routing table for confirmation before proceeding. For each delegated service, verify the three fields collected in Question 2 are complete:
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