Update the daily budget or lifetime spend cap of a campaign.
AI agents use snapchat_update_campaign_budget to create or update resources in Snapchat Ads MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Snapchat Ads MCP Server environment.
This tool modifies campaign budget settings, which directly affects financial commitments and spend limits. While it does not move money itself (Financial category requires actual payment/transaction execution), it irreversibly changes budget caps that control advertising spend. The high severity reflects that misuse could cause unintended financial obligations through increased budget allocations.
From the tool's definition Tool description states "Update the daily budget or lifetime spend cap of a campaign." The verb "update" combined with financial parameters (daily budget, lifetime spend cap) indicates modification of monetarily-significant configuration.
Attacks that exploit this kind of access
Update the daily budget or lifetime spend cap of a campaign. It is categorised as a Write tool in the Snapchat Ads MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Snapchat Ads MCP Server MCP server in PolicyLayer and add a rule for snapchat_update_campaign_budget: 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 Snapchat Ads MCP Server. Nothing to install.
snapchat_update_campaign_budget 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 snapchat_update_campaign_budget 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 snapchat_update_campaign_budget. 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.
snapchat_update_campaign_budget is provided by the Snapchat Ads MCP Server MCP server (saadsh0/snapchat-ads-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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