I've been using Claude Code as my primary IDE for 3 months. I ended up building 25 custom skills for my own workflow. Here are the 3 I use most, free to install.
A skill in Claude Code lives at ~/.claude/skills/{name}/SKILL.md with a markdown frontmatter block. Claude Code loads them automatically on launch. Skills are different from prompts — they enforce scope, output shape, and ordered sequence. Same structure every invocation.
A drift-fixing skill. Reads your actual code structure, compares to your README, and rewrites the README to match. No aspirational fluff, no marketing language, no future roadmap sections — just what the code currently is.
Key constraint: refuses to include speculative "Future plans" or "Roadmap" sections unless you supplied them. Refuses to fabricate install commands.
Install:
mkdir -p ~/.claude/skills/readme-sync
curl -o ~/.claude/skills/readme-sync/SKILL.md https://raw.githubusercontent.com/septimlabs-code/septim-drills-samples/master/skills/readme-sync.mdReads recent git history and flags commits with subjects that lie (fix: typo on a 300-line diff across 12 files), commits that batch unrelated changes, missing context, broken Conventional Commits grammar.
Proposes rewrites but refuses to force-push shared history without explicit authorization. For pushed commits, proposes follow-up documentation commits instead.
Install:
mkdir -p ~/.claude/skills/commit-quality
curl -o ~/.claude/skills/commit-quality/SKILL.md https://raw.githubusercontent.com/septimlabs-code/septim-drills-samples/master/skills/commit-quality.mdDrafts a Show HN submission + first comment that a jaded HN reader will actually scan. Rules for title length, body, timing (Monday/Tuesday 8am ET), post-submission velocity (reply within 10 min for first hour), and what NOT to say ("Excited to announce," "revolutionary," emojis in title).
Install:
mkdir -p ~/.claude/skills/launch-post-hn
curl -o ~/.claude/skills/launch-post-hn/SKILL.md https://raw.githubusercontent.com/septimlabs-code/septim-drills-samples/master/skills/launch-post-hn.mdOr clone all three at once:
git clone https://github.com/septimlabs-code/septim-drills-samples.git
cp -r septim-drills-samples/skills/* ~/.claude/skills/If you want the other 22 (PR review, test gaps, migration safety, security triage, refactor, type tightening, env audit, CI audit, bug repro, postmortem, changelog, API docs, onboarding, dead-code, effort estimation, deprecation plan, and more), the full pack is $29 lifetime at septimlabs.vercel.app/drills.
Tonight only: Drills + Vault (my client-side encrypted dev-secret vault) for $39 bundle vs $58 separate — septimlabs.vercel.app/tonight. Expires midnight ET.
Shared April 20, 2026 by Septim Labs — septimlabs.vercel.app