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AI agents use doc_create to create or modify resources in Mcp Pickaxe. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call doc_create repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Mcp Pickaxe.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"doc_create": {
"limits": [
{
"counter": "doc_create_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Mcp Pickaxe policy for all 17 tools.
These attack patterns abuse exactly the kind of access doc_create gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Create a new document in Pickaxe knowledge base. Can create from raw content or scrape a website URL.. It is categorised as a Write tool in the Mcp Pickaxe MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Pickaxe MCP server in PolicyLayer and add a rule for doc_create: 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 Mcp Pickaxe. Nothing to install.
doc_create 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 doc_create 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 doc_create. 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.
doc_create is provided by the Mcp Pickaxe MCP server (mcp-pickaxe). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 17 Mcp Pickaxe tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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