em-dash
95 / 100 · Low risk
Fine to try.
Expert on the history, origin, and correct use of the em dash. Use when writing or reviewing code, comments, or data files to avoid em and en dashes, defaulting to never using them and replacing any found with a hyphen (-). Includes strong knowledge of punctuation marks and the proper usage of punctuation characters when writing comments.
What this skill can do
Runs commands on your computer
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'em-dash' ] || [ -L ~/.agents/skills/'em-dash' ]; then echo 'A skill folder named em-dash already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/github/awesome-copilot' "$d" && git -C "$d" checkout --quiet '227949a7542a55d2155c00e7cdb998d9a0fee4f3' -- 'skills/em-dash' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/em-dash' ~/.agents/skills/'em-dash' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'em-dash' ~/.claude/skills/'em-dash' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
[](https://zalavijaysinh.github.io/skilltrust/repos/github/awesome-copilot/)
Score history
| Date | Version | Score |
|---|---|---|
| 2026-11-10 | 227949a | 95 |
| 2026-11-08 | 797337f | 95 |
| 2026-11-07 | 797337f | 95 |