Bug Report

Current Behavior

The changesets CLI silently ignores unknown flags and proceeds to execute commands, which can lead to unintended actions.

Expected Behavior

The CLI should either:

1. Show an error message for unknown flags
2. Display help information when invalid flags are used
3. At minimum, warn about unrecognized flags

Steps to Reproduce

1. Run changeset publish --help (non-existent flag for this subcommand)
2. Observe that the command execute changeset publish normally instead of erroring

Example Output

$ changeset publish --help  
# Proceeds to publish instead of showing help

Impact

This behavior is dangerous because:

• Users expect --help to show documentation
• Users expect unknown flags to not be silently ignored
• Silent flag ignoring can lead to accidental publishes

Environment

• @changesets/cli version: 2.29.8

Suggested Fix

Add flag validation that errors on unknown flags, similar to how most CLI tools handle this scenario.