Manage MolTrust credits: check balance, view pricing, transfer credits, or view transaction history. Args: action: One of "balance", "pricing", "transfer", or "transactions" did: Agent DID (required for "balance" and "transactions") to_did: Recipient DID (required for "transfer") amount: Number o...
Part of the MolTrust server.
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AI agents use moltrust_credits to create or modify resources in MolTrust. 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 moltrust_credits 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 MolTrust.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"moltrust_credits": {
"limits": [
{
"counter": "moltrust_credits_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full MolTrust policy for all 11 tools.
These attack patterns abuse exactly the kind of access moltrust_credits 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.
Manage MolTrust credits: check balance, view pricing, transfer credits, or view transaction history. Args: action: One of "balance", "pricing", "transfer", or "transactions" did: Agent DID (required for "balance" and "transactions") to_did: Recipient DID (required for "transfer") amount: Number of credits to transfer (required for "transfer", must be >= 1) reference: Optional reference string for transfers limit: Max transactions to return (default 20, for "transactions") offset: Pagination offset (default 0, for "transactions"). It is categorised as a Write tool in the MolTrust MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MolTrust MCP server in PolicyLayer and add a rule for moltrust_credits: 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 MolTrust. Nothing to install.
moltrust_credits 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 moltrust_credits 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 moltrust_credits. 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.
moltrust_credits is provided by the MolTrust MCP server (moltrust/moltrust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 MolTrust tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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