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retro
97 / 100 · Low risk
Fine to try.
By garrytan/gstack (GitHub) · other · 141,312 stars · scanned at commit bc858ff
Weekly engineering retrospective. (gstack)
Works with any agent that supports SKILL.md skills.
What this skill can do
Runs commands on your computer
This is disclosed by the author in the skill's SKILL.md or README.
Found in 20 places.
Show 17 more
- retro/SKILL.md, line 108
~/.claude/skills/gstack/bin/gstack-skill-end --skill "retro" --outcome OUTCOME \ - retro/SKILL.md, line 123
git remote get-url origin 2>/dev/null - retro/SKILL.md, line 213
_CROSS_PROJ=$(~/.claude/skills/gstack/bin/gstack-config get cross_project_learnings 2>/dev/null || echo "unset") - retro/SKILL.md, line 252
git fetch origin <default> --quiet 2>/dev/null \ - retro/SKILL.md, line 263
_RM="$HOME/.claude/skills/gstack/bin/gstack-retro-metrics" - retro/SKILL.md, line 433
_FS="$HOME/.claude/skills/gstack/bin/gstack-factory-scorecard" - retro/SKILL.md, line 485
grep -rn "gstack-shortcut(" . \ - retro/SKILL.md, line 510
_RM="$HOME/.claude/skills/gstack/bin/gstack-retro-metrics" - retro/SKILL.md, line 618
~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"retro","type":"TYPE","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"SOURCE","fil - retro/SKILL.md, line 654
DISCOVER_BIN="" - retro/SKILL.md, line 666
$DISCOVER_BIN --since "<window>" --format json 2>/tmp/gstack-discover-stderr - retro/SKILL.md, line 682
git -C <path> fetch origin --quiet 2>/dev/null - retro/SKILL.md, line 689
git -C <path> log origin/$DEFAULT --since="<start_date>T00:00:00" --format="%H|%aN|%ai|%s" --shortstat - retro/SKILL.md, line 708
git -C <path> log origin/$DEFAULT --since="365 days ago" --format="%ad" --date=format:"%Y-%m-%d" | sort -u - retro/SKILL.md, line 857
GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /g - retro/SKILL.md, line 871
GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /g - retro/SKILL.md, line 877
GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /g
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'retro' ] || [ -L ~/.agents/skills/'retro' ]; then echo 'A skill folder named retro already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/garrytan/gstack' "$d" && git -C "$d" checkout --quiet 'bc858ffc659bcc61558f60d0e023a009817dd48f' -- 'retro' && mkdir -p ~/.agents/skills && cp -R "$d"/'retro' ~/.agents/skills/'retro' && rm -rf "$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/'retro' ~/.claude/skills/'retro' (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
The badge for garrytan/gstack shows the score of its lowest-scoring skill.

[](https://zalavijaysinh.github.io/skilltrust/repos/garrytan/gstack/)
Score history
| Date | Version | Score |
|---|
| 2026-11-12 | bc858ff | 97 |
| 2026-11-11 | f0cd9f8 | 97 |
| 2026-11-10 | 6b32714 | 97 |
| 2026-11-09 | c25580e | 97 |
| 2026-11-08 | 9740bfd | 97 |
| 2026-11-08 | d479c5b | 97 |
| 2026-11-06 | 0c41ced | 87 |