pi-auto-retry

Automatically retries when the LLM generates malformed tool call JSON. Saves you from having to manually tell the agent to try again.

Install

pi install npm:@pedro_klein/pi-auto-retry

What it provides

• Events: Hooks into agent_end to detect JSON parse errors and auto-retry
• Notifications: Shows a flash when retrying so you know what happened

No tools or commands registered — this extension works silently in the background.

How it works

Sometimes the LLM generates invalid JSON in tool call parameters — especially with large edit calls containing template literals, backticks, unicode escapes, or nested quotes. When this happens, pi shows an error like:

Unexpected non-whitespace character after JSON at position 4210

This extension detects JSON parse errors in the assistant message's errorMessage field and sends a follow-up message asking the LLM to retry with smaller, simpler edits.

Behavior:

• Detects: Unexpected token, unterminated string, bad control character, etc.
• Sends a retry message instructing the model to break the edit into smaller pieces
• Max 2 consecutive retries — resets on any successful turn
• Gives up with an error notification after max retries to avoid loops

Configuration

No configuration required — works out of the box.

To change the retry limit, edit MAX_RETRIES in the source (default: 2).

Development

pnpm test           # run tests
pnpm build          # build for publish
pnpm typecheck      # type-check without emitting

License

MIT