Zinvyl Marketplace Agent Gateway

Resume a Zinvyl agent purchase

resume_agent_purchase

Read-onlyIdempotent

Read-only durable continuation. Returns the exact observed stop and next executable action for a previously returned opaque continuation token. It creates no purchase, checkout, charge, or order.

Input Schema

Name	Required	Description	Default
`offer_id`	Yes
`acquisition_source`	No
`continuation_token`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 27, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1",
-  "zinvyl.quality.ai-workflow-failure-audit.v1",
-  "zinvyl.factory.workflow-single-automation-blueprint.v1",
-  "zinvyl.factory.development-mcp-server-starter.v1",
-  "zinvyl.factory.automation-compliant-market-monitor.v1",
-  "zinvyl.factory.content-instructional-video-pack.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1",
+  "zinvyl.quality.trace-readiness-check.v1",
+  "zinvyl.factory.workflow-single-automation-blueprint.v1",
+  "zinvyl.factory.development-mcp-server-starter.v1",
+  "zinvyl.factory.automation-compliant-market-monitor.v1",
+  "zinvyl.factory.content-instructional-video-pack.v1"
+]

Changed1 schema field changedOct 27, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1",
-  "zinvyl.quality.ai-workflow-failure-audit.v1",
-  "zinvyl.factory.workflow-single-automation-blueprint.v1",
-  "zinvyl.factory.development-mcp-server-starter.v1",
-  "zinvyl.factory.automation-compliant-market-monitor.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1",
+  "zinvyl.factory.workflow-single-automation-blueprint.v1",
+  "zinvyl.factory.development-mcp-server-starter.v1",
+  "zinvyl.factory.automation-compliant-market-monitor.v1",
+  "zinvyl.factory.content-instructional-video-pack.v1"
+]

Changed1 schema field changedOct 27, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1",
-  "zinvyl.quality.ai-workflow-failure-audit.v1",
-  "zinvyl.factory.workflow-single-automation-blueprint.v1",
-  "zinvyl.factory.development-mcp-server-starter.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1",
+  "zinvyl.factory.workflow-single-automation-blueprint.v1",
+  "zinvyl.factory.development-mcp-server-starter.v1",
+  "zinvyl.factory.automation-compliant-market-monitor.v1"
+]

Changed1 schema field changedOct 27, 2026

changedInput schema / properties / acquisition_source / enum

Previous value: -[
-  "direct",
-  "direct_agent",
-  "mcp_registry",
-  "a2a_registry",
-  "ai_agents_directory",
-  "allagents",
-  "toku",
-  "gohirehumans",
-  "toll_bench",
-  "callboard",
-  "recruiting_bot",
-  "peerpush",
-  "speedbot",
-  "procurement_agent_operator",
-  "workflow_orchestrator",
-  "shopping_agent",
-  "partner_operator",
-  "other",
-  "zinvyl_offer_feed"
-]New value: +[
+  "direct",
+  "direct_agent",
+  "mcp_registry",
+  "a2a_registry",
+  "ai_agents_directory",
+  "allagents",
+  "toku",
+  "gohirehumans",
+  "toll_bench",
+  "callboard",
+  "recruiting_bot",
+  "peerpush",
+  "speedbot",
+  "lumen_b2b",
+  "procurement_agent_operator",
+  "workflow_orchestrator",
+  "shopping_agent",
+  "partner_operator",
+  "other",
+  "zinvyl_offer_feed"
+]

Changed1 schema field changedOct 27, 2026

changedInput schema / properties / acquisition_source / enum

Previous value: -[
-  "direct",
-  "direct_agent",
-  "mcp_registry",
-  "a2a_registry",
-  "ai_agents_directory",
-  "allagents",
-  "toku",
-  "gohirehumans",
-  "toll_bench",
-  "callboard",
-  "recruiting_bot",
-  "peerpush",
-  "procurement_agent_operator",
-  "workflow_orchestrator",
-  "shopping_agent",
-  "partner_operator",
-  "other",
-  "zinvyl_offer_feed"
-]New value: +[
+  "direct",
+  "direct_agent",
+  "mcp_registry",
+  "a2a_registry",
+  "ai_agents_directory",
+  "allagents",
+  "toku",
+  "gohirehumans",
+  "toll_bench",
+  "callboard",
+  "recruiting_bot",
+  "peerpush",
+  "speedbot",
+  "procurement_agent_operator",
+  "workflow_orchestrator",
+  "shopping_agent",
+  "partner_operator",
+  "other",
+  "zinvyl_offer_feed"
+]

Changed1 schema field changedOct 26, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1",
-  "zinvyl.quality.ai-workflow-failure-audit.v1",
-  "zinvyl.factory.workflow-single-automation-blueprint.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1",
+  "zinvyl.factory.workflow-single-automation-blueprint.v1",
+  "zinvyl.factory.development-mcp-server-starter.v1"
+]

Changed1 schema field changedOct 26, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1",
-  "zinvyl.quality.ai-workflow-failure-audit.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1",
+  "zinvyl.factory.workflow-single-automation-blueprint.v1"
+]

Changed1 schema field changedOct 26, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1",
-  "zinvyl.analytics.operations-bi-dashboard.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1",
+  "zinvyl.quality.ai-workflow-failure-audit.v1"
+]

Changed1 schema field changedOct 25, 2026

changedInput schema / properties / acquisition_source / enum

Previous value: -[
-  "direct",
-  "direct_agent",
-  "mcp_registry",
-  "a2a_registry",
-  "ai_agents_directory",
-  "toku",
-  "gohirehumans",
-  "toll_bench",
-  "callboard",
-  "recruiting_bot",
-  "peerpush",
-  "procurement_agent_operator",
-  "workflow_orchestrator",
-  "shopping_agent",
-  "partner_operator",
-  "other",
-  "zinvyl_offer_feed"
-]New value: +[
+  "direct",
+  "direct_agent",
+  "mcp_registry",
+  "a2a_registry",
+  "ai_agents_directory",
+  "allagents",
+  "toku",
+  "gohirehumans",
+  "toll_bench",
+  "callboard",
+  "recruiting_bot",
+  "peerpush",
+  "procurement_agent_operator",
+  "workflow_orchestrator",
+  "shopping_agent",
+  "partner_operator",
+  "other",
+  "zinvyl_offer_feed"
+]

Changed1 schema field changedOct 25, 2026

changedInput schema / properties / acquisition_source / enum

Previous value: -[
-  "direct",
-  "direct_agent",
-  "mcp_registry",
-  "a2a_registry",
-  "ai_agents_directory",
-  "toku",
-  "gohirehumans",
-  "toll_bench",
-  "callboard",
-  "recruiting_bot",
-  "peerpush",
-  "procurement_agent_operator",
-  "workflow_orchestrator",
-  "shopping_agent",
-  "partner_operator",
-  "other"
-]New value: +[
+  "direct",
+  "direct_agent",
+  "mcp_registry",
+  "a2a_registry",
+  "ai_agents_directory",
+  "toku",
+  "gohirehumans",
+  "toll_bench",
+  "callboard",
+  "recruiting_bot",
+  "peerpush",
+  "procurement_agent_operator",
+  "workflow_orchestrator",
+  "shopping_agent",
+  "partner_operator",
+  "other",
+  "zinvyl_offer_feed"
+]

Changed1 schema field changedOct 23, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1",
-  "zinvyl.data.csv-cleanup-starter.v1",
-  "zinvyl.data.csv-cleanup-complete.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1",
+  "zinvyl.analytics.operations-bi-dashboard.v1"
+]

Changed1 schema field changedOct 23, 2026

changedInput schema / properties / offer_id / enum

Previous value: -[
-  "zinvyl.venture.evidence-brief.v1",
-  "zinvyl.venture.prototype-scope.v1",
-  "zinvyl.freight.workflow-audit.v1",
-  "zinvyl.api.workflow-failure-rescue.v1",
-  "zinvyl.api.failure-triage.v1",
-  "zinvyl.api.workflow-reliability-care.v1",
-  "zinvyl.freight.full-workflow-audit.v1",
-  "zinvyl.content.ai-marketing-pilot.v1"
-]New value: +[
+  "zinvyl.venture.evidence-brief.v1",
+  "zinvyl.venture.prototype-scope.v1",
+  "zinvyl.freight.workflow-audit.v1",
+  "zinvyl.api.workflow-failure-rescue.v1",
+  "zinvyl.api.failure-triage.v1",
+  "zinvyl.api.workflow-reliability-care.v1",
+  "zinvyl.freight.full-workflow-audit.v1",
+  "zinvyl.content.ai-marketing-pilot.v1",
+  "zinvyl.data.csv-cleanup-starter.v1",
+  "zinvyl.data.csv-cleanup-complete.v1"
+]

AddedOct 18, 2026

TDQS

A3.7/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety bar is covered. The description still adds domain-specific value by spelling out that no purchase, checkout, charge, or order is created and that the continuation is 'durable', which reassures an agent that resuming has no side effects on the transaction itself.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two tight sentences with the read-only guarantee front-loaded and the no-side-effects guarantee second. Every clause carries information, though the opening fragment 'Read-only durable continuation' is slightly jargon-heavy compared with the plain language that follows.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description does the right work by describing the return ('the exact observed stop and next executable action') rather than leaving it opaque. It is nearly complete for a 3-parameter read-only tool; the gap is the absence of guidance on expired or invalid tokens and how a returned 'stop' should be interpreted.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate, and it only explains one of three parameters: the continuation_token, whose provenance ('previously returned') and opacity are usefully conveyed. offer_id and acquisition_source are left entirely to their enums, which are self-describing but do not explain whether the offer_id must match the token's original offer.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a concrete verb and resource: it resumes an agent purchase flow from a previously returned opaque continuation token and returns the observed stop plus the next executable action. It also distinguishes itself from the mutating siblings by declaring it creates no purchase, checkout, charge, or order, which separates it from buy_service, create_purchase_intent, and prepare_purchase_route.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The precondition is implied well: it applies to a 'previously returned opaque continuation token', which tells the agent this follows an earlier call. However, it never names an alternative (preflight_agent_purchase, recover_abandoned_purchase, get_purchase_requirements) or states what to do when no token exists or the token is stale, leaving the agent to infer the routing.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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