Upload an order attachment to Sanka from an already available base64 payload. Prefer this direct upload when the client can pass content_base64 reliably. For client-local PDFs or payloads that are too large or unreliable to pass as one content_base64 string, use start_order_attachment_upload, app...
AI agents use upload_order_attachment to create or update resources in Sanka MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sanka MCP Server environment.
This tool creates new attachment records and associates them with orders. While the operation is reversible (attachments can typically be removed or replaced), it modifies persistent data structures. The blast radius is medium because misuse could attach malicious files, incorrect documents, or spam to orders, but the damage is containable through deletion or correction rather than permanent data destruction.
From the tool's definition Tool performs 'Upload an order attachment to Sanka from an already available base64 payload' - creates and stores new file attachment data associated with an order, which is a reversible write operation.
Attacks that exploit this kind of access
Upload an order attachment to Sanka from an already available base64 payload. Prefer this direct upload when the client can pass content_base64 reliably. For client-local PDFs or payloads that are too large or unreliable to pass as one content_base64 string, use start_order_attachment_upload, append_order_attachment_upload_chunk until done, then finish_order_attachment_upload. Use the returned file_id in create_order or update_order. It is categorised as a Write tool in the Sanka MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sanka MCP Server MCP server in PolicyLayer and add a rule for upload_order_attachment: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Sanka MCP Server. Nothing to install.
upload_order_attachment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the upload_order_attachment rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for upload_order_attachment. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
upload_order_attachment is provided by the Sanka MCP Server MCP server (sankahq/sanka-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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