Feature Request: Add Token Count Estimation to Output

[not-an-llm]

I'd like to propose adding an estimated token count to the generated output. This would help users know if their generated text fits within their LLM's context window limits.

Proposed Feature:

• Add an estimated token count at the beginning of both llms.txt and llms-full.txt files
• Display format could be something like:
  Estimated Tokens: 12,345

Why this would be useful:

• Helps users immediately know if the generated text will fit their LLM's context window
• Prevents trial-and-error when loading large text files into LLMs
• Makes it easier to split content into appropriate chunk sizes if needed

Implementation Suggestions:

• Could use libraries like tiktoken or a simple character-based approximation
• Token count could be placed in a header section or metadata block at the start of the file