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cast-lessons

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 codecast-sh/codecast (GitHub) · coding · 44 stars · scanned at commit fc0f0d8

Harvest the corrections humans made across the team's sessions in a window, cluster them, and propose the guidance that would have prevented each. Reads every session where someone said stop, no, not like that, or redirected an agent, and turns the pattern into instruction lines, decisions, or a doc. Use for a weekly retro, when the same mistake keeps recurring, or when asked what the team keeps correcting.

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/'cast-lessons' ] || [ -L ~/.agents/skills/'cast-lessons' ]; then echo 'A skill folder named cast-lessons already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/codecast-sh/codecast' "$d" && git -C "$d" checkout --quiet 'fc0f0d8c2340edbbdb9708d9a8eacf22aaa1d67b' -- 'packages/cli/skills/cast-lessons' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/cli/skills/cast-lessons' ~/.agents/skills/'cast-lessons' && 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/'cast-lessons' ~/.claude/skills/'cast-lessons' (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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