Incorrect handling of special characters in prompts from files

[malloc-error]

What happened?

When piping a file that contains special characters (e.g., quotes, backticks, dollar signs) into a prompt, the characters are not always escaped or interpreted correctly. This can lead to unexpected errors from the API or malformed output.

What did you expect to happen?

Expected Behavior:
The CLI should properly handle and escape all special characters from piped input to ensure the prompt sent to the Gemini API is exactly as intended.

Client information

Client Information

Run gemini to enter the interactive CLI, then run the /about command.

> /about
# paste output here

Login information

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Anything else we need to know?

No response

[malloc-error]

Test comment