Remove tickers from your saved watchlist.
Part of the TickerAPI server.
Free to start. No card required.
AI agents may call remove_from_watchlist to permanently remove or destroy resources in TickerAPI. 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 remove_from_watchlist in a loop, permanently destroying resources in TickerAPI. 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": [
"remove_from_watchlist"
]
}See the full TickerAPI policy for all 20 tools.
These attack patterns abuse exactly the kind of access remove_from_watchlist 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.
Remove tickers from your saved watchlist.. It is categorised as a Destructive tool in the TickerAPI MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the TickerAPI MCP server in PolicyLayer and add a rule for remove_from_watchlist: 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 TickerAPI. Nothing to install.
remove_from_watchlist 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 remove_from_watchlist 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 remove_from_watchlist. 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.
remove_from_watchlist is provided by the TickerAPI MCP server (tickerapi-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 20 TickerAPI tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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