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Aider

Persistent long-term memory for Aider, powered by Hindsight. hindsight-aider is a drop-in wrapper for the aider command: it recalls relevant project memory before each session (injected into Aider's context via a read-only file) and retains the session transcript after — so each Aider session starts with what you've learned and saves what it learns. Memory is scoped per git repo.

How It Works​

Aider has no MCP client or per-prompt hook, but it loads read-only context files and writes a chat-history file. The wrapper uses both:

  • Recall (before): queries Hindsight, writes the results to .aider.hindsight-memory.md, and launches aider --read .aider.hindsight-memory.md … so the memory is in context. aider -m "fix the auth bug" uses that message as the recall query; otherwise a general project-context query.
  • Retain (after): when Aider exits, the wrapper reads the slice of the chat-history file written during the session and retains it to the repo's bank.

Recall is once per session (Aider can't be hooked mid-conversation), which fits its session-oriented workflow.

Setup​

pip install hindsight-aider aider-chat
export HINDSIGHT_API_TOKEN=hsk_...

Use it exactly like aider — all arguments pass through:

hindsight-aider                       # interactive, project memory loaded
hindsight-aider -m "add retry logic"  # one-shot; recall uses the message
hindsight-aider src/app.py            # any aider args

Use a Hindsight Cloud key, or a self-hosted server with HINDSIGHT_API_URL=http://localhost:8888. The bank defaults to the git repo name, so a project's memory is shared with the other Hindsight editor integrations on the same repo.

See the package README for full configuration options.