# get_buy_merchant_purchase

Load one Sanka Buy merchant purchase, including linked Company, Purchase Order, checkout, external order, and Bill ids when present.

Agent View of the PolicyLayer registry record for `get_buy_merchant_purchase`. HTML page: https://policylayer.com/tools/sankahq-sanka-mcp/get-buy-merchant-purchase

## Facts

- Tool: `get_buy_merchant_purchase`
- Server: Sanka MCP Server (`sankahq/sanka-mcp`) — https://policylayer.com/tools/sankahq-sanka-mcp.md
- Homepage: https://github.com/sankaHQ/sanka-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_buy_merchant_purchase",
    "arguments": {}
  }
}
```

## Why get_buy_merchant_purchase is rated Low

This tool retrieves and queries existing purchase data without creating, modifying, or deleting records. It returns linked identifiers and purchase information for read-only access. The low severity reflects minimal blast radius—an AI agent misusing this would only retrieve existing data, not alter business operations or finances.

From the tool's own definition: "Tool name contains 'get_' and description states 'Load one Sanka Buy merchant purchase' with 'including linked Company, Purchase Order, checkout, external order, and Bill ids when present.' The verb 'Load' and structure indicates data retrieval with no…"

## Use case

AI agents call get_buy_merchant_purchase to retrieve information from Sanka MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Sanka MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_buy_merchant_purchase": {}
  }
}
```

## Other tools on Sanka MCP Server (348)

- `cancel_buy_request` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/cancel-buy-request.md
- `cancel_export_job` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/cancel-export-job.md
- `cancel_import_job` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/cancel-import-job.md
- `cancel_workspace_invitation` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/cancel-workspace-invitation.md
- `delete_absence` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-absence.md
- `delete_approval_rule` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-approval-rule.md
- `delete_association` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-association.md
- `delete_attendance_record` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-attendance-record.md
- `delete_bill` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-bill.md
- `delete_company` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-company.md
- `delete_contact` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-contact.md
- `delete_deal` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-deal.md
- `delete_delivery_rule` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-delivery-rule.md
- `delete_disbursement` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-disbursement.md
- `delete_disbursement_allocation` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-disbursement-allocation.md
- `delete_estimate` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-estimate.md
- `delete_expense` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-expense.md
- `delete_ferry_diagram` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-ferry-diagram.md
- `delete_ferry_todo` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-ferry-todo.md
- `delete_inventory` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-inventory.md
- `delete_inventory_transaction` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-inventory-transaction.md
- `delete_invoice` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-invoice.md
- `delete_item` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-item.md
- `delete_location` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-location.md
- `delete_lock_rule` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-lock-rule.md
- `delete_order` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-order.md
- `delete_payment` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-payment.md
- `delete_project` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-project.md
- `delete_property` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-property.md
- `delete_purchase_order` — Destructive — https://policylayer.com/tools/sankahq-sanka-mcp/delete-purchase-order.md
- …and 318 more: https://policylayer.com/tools/sankahq-sanka-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=sankahq-sanka-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/sankahq-sanka-mcp
