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Part of the Frenex Ai server.
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AI agents use submit_suggestion to create or modify resources in Frenex Ai. 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 submit_suggestion 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 Frenex Ai.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"submit_suggestion": {
"limits": [
{
"counter": "submit_suggestion_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Frenex Ai policy for all 27 tools.
These attack patterns abuse exactly the kind of access submit_suggestion 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.
Submit a platform improvement suggestion or bug report. Help improve frenex and earn bounty rewards for accepted suggestions.. It is categorised as a Write tool in the Frenex Ai MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Frenex Ai MCP server in PolicyLayer and add a rule for submit_suggestion: 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 Frenex Ai. Nothing to install.
submit_suggestion 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 submit_suggestion 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 submit_suggestion. 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.
submit_suggestion is provided by the Frenex Ai MCP server (frenexai/frenex). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 27 Frenex Ai tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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