AI agents use codegen_render_mapper to create or update resources in DBJavaGenix — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your DBJavaGenix environment.
This tool generates/renders mapper files (MyBatis XML or MapStruct), which is a code creation/write operation. It creates new file artifacts but does not execute code, delete data, or involve financial transactions. Misuse could produce incorrect mapper code that gets used in a project, but the blast radius is limited to code generation output.
From the tool's definition 渲染 MyBatis XML mapper 或 MapStruct mapper (renders MyBatis XML mapper or MapStruct mapper)
Documented attack patterns abuse exactly the kind of access codegen_render_mapper gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and DBJavaGenix, and nothing reaches the server without passing your rules. This is the rule we recommend for codegen_render_mapper:
{
"version": "1",
"default": "deny",
"tools": {
"codegen_render_mapper": {
"limits": [
{
"counter": "codegen_render_mapper_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}codegen_render_mapper 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.
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渲染 MyBatis XML mapper 或 MapStruct mapper。. It is categorised as a Write tool in the DBJavaGenix MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the DBJavaGenix MCP server in PolicyLayer and add a rule for codegen_render_mapper: 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 DBJavaGenix. Nothing to install.
codegen_render_mapper 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 codegen_render_mapper 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 codegen_render_mapper. 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.
codegen_render_mapper is provided by the DBJavaGenix MCP server (zhaoxingpeng/dbjavagenix). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 33 DBJavaGenix tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
33 DBJavaGenix tools catalogued and risk-classified — across an index of 42,500+ MCP servers.