The Read tool documents that a negative offset reads from the end (-N = last N lines). Content is split on newline, so a file ending in a newline produces a trailing empty element and total_file_lines is one too high. Every negative offset was therefore off by one: offset=-1 returned the empty string after the final newline instead of the last line, and -N returned N-1 real lines.
Exclude the trailing empty element when computing the start line for negative offsets. Adds regression tests.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Simplify skill-creator installation flow
- Refine skill selection prompt for better matching
- Add parameter alias and env variable hints for tools
- Skip linkai-agent when unconfigured
- Create skills/ dir in workspace on init
