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lemma-discovery-assistant

100 / 100 · Low risk

Fine to try.

By ArabelaTso/Skills-4-SE (GitHub) · coding · 260 stars · scanned at commit 4f38503

Analyze failed or stuck proofs and propose auxiliary lemmas to help complete the proof in Isabelle/HOL or Coq. Use when encountering proof failures, stuck proof states, unprovable subgoals, or when needing to strengthen induction hypotheses. Identifies missing lemmas, suggests proof strategies, and generates helper lemmas with appropriate statements and proof sketches. Supports inductive proofs, case analysis, rewriting, and complex proof obligations.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'lemma-discovery-assistant' ] || [ -L ~/.agents/skills/'lemma-discovery-assistant' ]; then echo 'A skill folder named lemma-discovery-assistant already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/ArabelaTso/Skills-4-SE' "$d" && git -C "$d" checkout --quiet '4f38503747e0617504bce5329283ef837d375c09' -- 'skills/lemma-discovery-assistant' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/lemma-discovery-assistant' ~/.agents/skills/'lemma-discovery-assistant' && 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/'lemma-discovery-assistant' ~/.claude/skills/'lemma-discovery-assistant' (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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