Provides a comprehensive deep-dive on a single Polymarket market, returning the question, outcomes with current token prices and probability percentages, price history statistics for the last 24h/7d/30d (open, close, min, max, change), total and 24h volume, liquidity depth, bid-ask spread, one-si...
Part of the Syenite server.
Free to start. No card required.
AI agents may call prediction.market to permanently remove or destroy resources in Syenite. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call prediction.market in a loop, permanently destroying resources in Syenite. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"prediction.market"
]
}See the full Syenite policy for all 46 tools.
These attack patterns abuse exactly the kind of access prediction.market gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Provides a comprehensive deep-dive on a single Polymarket market, returning the question, outcomes with current token prices and probability percentages, price history statistics for the last 24h/7d/30d (open, close, min, max, change), total and 24h volume, liquidity depth, bid-ask spread, one-sided order flow direction, implied probability, resolution criteria, and time remaining until close. Use this after prediction.trending or prediction.search to fully evaluate a market before quoting, ordering, or monitoring. Requires at least one of slug, conditionId, or marketId — all are returned by the search and trending tools. Does not place or cancel orders.. It is categorised as a Destructive tool in the Syenite MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Syenite MCP server in PolicyLayer and add a rule for prediction.market: 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 Syenite. Nothing to install.
prediction.market is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the prediction.market 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 prediction.market. 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.
prediction.market is provided by the Syenite MCP server (@syenite/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 46 Syenite tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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