Add rate limiting for timeout

**Problem**
When working with parsers, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No files or tests are named. Start by locating parser timeout handling and existing error-message paths; clarify the intended rate-limiting behavior and expected messages before implementing, then add coverage for the agreed timeout cases.

Written by the indexing model from the issue text.