Aider Memory overview

Aider's multi-file memory system combining .aider.conf.yml configuration, conventions files (.aider.conventions.md or CONVENTIONS.md), and the aider repo map as project-scoped memory. .aider.conf.yml persists CLI defaults and model preferences. Conventions files carry project-specific coding standards and patterns injected into every session. The repo map (a compressed representation of all file symbols and their relationships) provides structural project memory — enabling Aider to understand which files and functions are relevant for a given task without full codebase ingestion. Together these form a layered memory architecture: preferences → conventions → structural map.