Create a new buy order on the TronSave market. Key inputs: orderResourceType (ENERGY|BANDWIDTH), orderReceiver (TRON base58), orderUnitPrice in SUN (NOT TRX), orderDurationSec, orderResourceAmount, and paymentMethod: (1) onchain — requires a signed payment tx in paymentSignedTx; (2) internal — de...
Risk signalsHigh parameter count (18 properties)
Part of the Mcp server.
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AI agents use tronsave_create_order to create or modify resources in Mcp. 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 tronsave_create_order 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.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"tronsave_create_order": {
"limits": [
{
"counter": "tronsave_create_order_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Mcp policy for all 29 tools.
These attack patterns abuse exactly the kind of access tronsave_create_order 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 buy order on the TronSave market. Key inputs: orderResourceType (ENERGY|BANDWIDTH), orderReceiver (TRON base58), orderUnitPrice in SUN (NOT TRX), orderDurationSec, orderResourceAmount, and paymentMethod: (1) onchain — requires a signed payment tx in paymentSignedTx; (2) internal — deducts from internal balance. Side effect: creates a live order matchable by the market. Requires a signature session and mcp-session-id. Always derive orderUnitPrice and paymentPaymentAmount from the latest tronsave_estimate_buy_resource for the same receiver, amount, and duration to avoid reverts. FRESHNESS: re-quote immediately before submitting — estimates older than a few seconds (one TRON block ≈ 3s) may be stale and cause the order to revert or fill at the wrong price.. It is categorised as a Write tool in the Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP server in PolicyLayer and add a rule for tronsave_create_order: 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. Nothing to install.
tronsave_create_order 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 tronsave_create_order 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 tronsave_create_order. 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.
tronsave_create_order is provided by the MCP server (https://mcp.tronsave.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 29 Mcp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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