Is the Concept Drill skill free?

Yes. The skill itself is free from Wamikmk/concept-drill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Concept Drill SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install Concept Drill?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Concept Drill with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Concept Drill

Diagnoses your weakest sub-concept, drills it live via predict/break/confirm, leaves a tracker.

by Wamikmk · Wamikmk/concept-drill

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 15, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 2169774

The trigger/anti-trigger boundary is unusually precise (explicitly refuses 'teach me X') and the drill loop (predict before reveal, drop-down-to-prerequisite on stall, honest wobbly/shaky/fluent grading) produced a genuinely diagnostic session in testing, not a generic quiz — the only wrinkle is it targets claude.ai's file/present_files environment, so Claude Code just writes the tracker/exercise files to the working directory instead of /mnt/user-data/outputs/.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What Concept Drill does

A 4-phase active-recall tutor: loads a prior progress tracker if you have one, diagnoses which small sub-concepts ('nodes') are wobbly with sharp predict-it questions instead of a quiz, drills only the weak nodes live in chat until they flip unprompted, then writes an updated tracker and a set of take-away FIRE exercises. Triggers on /drill [topic], /practice [topic], or phrases like 'drill me on X' / 'test where I'm weak on X'; explicitly does not trigger on passive 'teach me X' requests.

How to install Concept Drill

git clone https://github.com/Wamikmk/concept-drill.git
cd concept-drill
mkdir -p ~/.claude/skills
cp -r skill ~/.claude/skills/concept-drill

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Concept Drill

/concept-drill Diagnoses your weakest sub-concept, drills it live via predict/break/confirm, leaves a tracker.

It also activates on plain-language prompts like these:

drill me on Bayes theorem until I actually get it
find where I'm weak on recursion and practice just that
quiz me with predict-first questions on binary search trees

Frequently asked questions

Is the Concept Drill skill free?: Yes. The skill itself is free from Wamikmk/concept-drill. SkillProof publishes the install command and an independent test verdict at no cost.
Does Concept Drill work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Tested · Works. The trigger/anti-trigger boundary is unusually precise (explicitly refuses 'teach me X') and the drill loop (predict before reveal, drop-down-to-prerequisite on stall, honest wobbly/shaky/fluent grading) produced a genuinely diagnostic session in testing, not a generic quiz — the only wrinkle is it targets claude.ai's file/present_files environment, so Claude Code just writes the tracker/exercise files to the working directory instead of /mnt/user-data/outputs/.
What is the Concept Drill SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install Concept Drill?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Concept Drill with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.