agent frameworks retry failed tool calls indefinitely with no backoff

ok so tested langchain 0.3.14 and autogen 0.4.2 yesterday. when a tool call fails both frameworks just retry immediately with zero backoff. hit a rate limit on an api tool and langchain retried 847 times in 90 seconds before i killed it. no exponential backoff, no max retry count, no circuit breaker. just hammers the failing tool until you manually stop it. this is completely broken for production deployments