Add QR code to PDF documents with friendly text below. QR code must be an image file (PNG/JPG). Priority: user provided path > environment variable QR_CODE_IMAGE
AI agents use add_qrcode to create or update resources in Doc Ops — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Doc Ops environment.
The tool modifies PDF documents by adding a QR code and text, which is a Write operation (creates or modifies data reversibly). The severity is low because adding a QR code is a benign cosmetic change with no destructive, financial, or code-execution implications. The confidence is high because the description clearly indicates document modification without side effects beyond the intended addition.
From the tool's definition Tool description states 'Add QR code to PDF documents', which modifies the document by inserting a QR code image. This is a reversible modification that creates an updated version of the PDF without destroying original data.
Documented attack patterns abuse exactly the kind of access add_qrcode gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Doc Ops, and nothing reaches the server without passing your rules. This is the rule we recommend for add_qrcode:
{
"version": "1",
"default": "deny",
"tools": {
"add_qrcode": {
"limits": [
{
"counter": "add_qrcode_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_qrcode stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Add QR code to PDF documents with friendly text below. QR code must be an image file (PNG/JPG). Priority: user provided path > environment variable QR_CODE_IMAGE. It is categorised as a Write tool in the Doc Ops MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Doc Ops MCP server in PolicyLayer and add a rule for add_qrcode: 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 Doc Ops. Nothing to install.
add_qrcode 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 add_qrcode 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 add_qrcode. 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.
add_qrcode is provided by the Doc Ops MCP server (tele-ai/doc-ops-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 13 Doc Ops tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
13 Doc Ops tools catalogued and risk-classified — across an index of 42,500+ MCP servers.