Perplexity used hundreds of AI coding agents to build CobbleDB for its search stack
Perplexity says two engineers worked with hundreds of AI coding agents to build CobbleDB, a custom Rust database replacing DynamoDB reads in its search stack. The case shows coding agents contributing at real infrastructure scale while keeping production execution outside the agents’ permissions.
Key Takeaways
- Two engineers coordinated hundreds of AI coding agents to build the custom Rust CobbleDB database
- CobbleDB replaces DynamoDB read paths in Perplexity’s search stack
- Agents built the system but were not allowed to run the database, separating coding from production authority