mysql_doc_modify
Update documents in a collection.
This record as markdown: /tools/io-github-neverinfamous-mysql-mcp/mysql-doc-modify.md
What mysql_doc_modify does on Mysql Mcp
AI agents use mysql_doc_modify to create or update resources in Mysql Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mysql Mcp environment.
Why mysql_doc_modify is rated Medium
The tool creates or modifies data reversibly through a document update operation. It does not delete data (which would be Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial).
From the tool's definition Tool name 'mysql_doc_modify' and description 'Update documents in a collection' explicitly indicate data modification operations.
Attacks that exploit this kind of access
The rule that runs mysql_doc_modify safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mysql Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mysql_doc_modify, this is the rule to start with:
mysql_doc_modify 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Mysql Mcp, apply this rule, and every mysql_doc_modify call is checked against it from then on.
Questions about mysql_doc_modify
Update documents in a collection. It is categorised as a Write tool in the Mysql Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mysql MCP server in PolicyLayer and add a rule for mysql_doc_modify: 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 Mysql Mcp. Nothing to install.
mysql_doc_modify 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 mysql_doc_modify 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 mysql_doc_modify. 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.
mysql_doc_modify is provided by the Mysql MCP server (oci:docker.io/writenotenow/mysql-mcp:v1.0.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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