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archaeology

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By DavidSouther/ailly (GitHub) · coding · 16 stars · scanned at commit 3b72cbd

Use when a research question asks why code changed over time, who introduced a behavior, when a feature was added or removed, or what motivated a past decision. Applies to questions about deleted code, renamed files, reverted changes, or the historical rationale behind current implementation. Does not apply to questions about current codebase state or dependency structure.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'archaeology' ] || [ -L ~/.agents/skills/'archaeology' ]; then echo 'A skill folder named archaeology already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/DavidSouther/ailly' "$d" && git -C "$d" checkout --quiet '3b72cbd7d7d6d933ac8e173639b08c833d2a844a' -- 'research/skills/archaeology' && mkdir -p ~/.agents/skills && cp -R "$d"/'research/skills/archaeology' ~/.agents/skills/'archaeology' && 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/'archaeology' ~/.claude/skills/'archaeology' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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