Fix N+1 Trigger Patterns Where Lambda Functions Hammer the Same DynamoDB Partition Key

You add a sixth Lambda trigger to your OrderEvents table, deploy it, and within 20 minutes your SLA dashboard goes red. Latency on order writes jumps from 4ms to 40ms. The function itself is fine. The table is fine. The problem is that five other Lambdas are already hitting the same partition key on every write, and you just made it six. DynamoDB's internal partition throttling doesn't care that each function looks clean in isolation. This is an N+1 trigger problem, and your AI coding assistant cannot catch it. Not because it lacks intelligence, but because the fact that five Lambdas already target that table lives in your AWS account and your full codebase — not in the file your assistant has open. Infrawise · npm Why the LLM Can't See the Pattern When you ask Claude to write a new order processing Lambda, it reads the file you have open and generates code that looks correct — because in the context of that one file, it is correct. It doesn't know about ProcessRefundsLambda , NotifyFulfillmentLambda , SyncInventoryLambda , UpdateAnalyticsLambda , and AuditTrailLambda , all of which you wrote in previous sprints and which all write to the Orders table. This is a category of failure that model quality doesn't fix. A better model produces a more fluent explanation for why your latency spiked. The fact that five functions converge on the same table is a lookup, not a prediction. The source of truth is a combination of your code (which functions exist) and your infrastructure (what they access). Infrawise draws that boundary explicitly. It extracts the answer from your code using AST parsing and from your infrastructure using API calls, then hands that graph to the model as structured context — it never generates the answer. How Infrawise Traces Trigger Chains to the Same Table When Infrawise scans your repository, it uses ts-morph to walk every CallExpression in every source file. It's not searching for the string "DynamoDB" — it matches call structure against a known