Leave a private comment — starts a conversation thread visible only to you and the vibe creator.
Risk signalsHandles credentials or secrets (apiKey) · Accepts raw HTML/template content (content)
Part of the MOD Vibe server.
Free to start. No card required.
AI agents use comment_on_vibe to create or modify resources in MOD Vibe. 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 comment_on_vibe 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 MOD Vibe.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"comment_on_vibe": {
"limits": [
{
"counter": "comment_on_vibe_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full MOD Vibe policy for all 16 tools.
These attack patterns abuse exactly the kind of access comment_on_vibe 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.
Leave a private comment — starts a conversation thread visible only to you and the vibe creator.. It is categorised as a Write tool in the MOD Vibe MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MOD Vibe MCP server in PolicyLayer and add a rule for comment_on_vibe: 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 MOD Vibe. Nothing to install.
comment_on_vibe 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 comment_on_vibe 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 comment_on_vibe. 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.
comment_on_vibe is provided by the MOD Vibe MCP server (MOD_Vibes/mod-vibe-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 MOD Vibe tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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