Definition
Abuse of limits covers oversized payloads, high-frequency tools/list or tools/call loops, and agents that burn upstream quota without operator intent.
How it appears in MCP
JSON-RPC allows large arguments; chatty clients may hammer catalog endpoints; runaway agents repeat calls until costs or outages spike.
Example pattern
API abuse and DoS via large bodies are familiar operational incidents; MCP servers inherit the same operational risk profile.
What MCP Trail does on the Guardian path
Payload caps, rate limits, and credit-style budgets (as implemented for your plan) throttle abusive patterns and cap runaway spend. Confirm payload caps, rate limits, and budgets in your workspace settings.
What still needs process
Capacity planning, client SDK hygiene, and monitoring outside MCP.