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Add-on pack · 6 tools · install the ones you want

Code quality

Before you launch, and every big change after.

  1. skill

    ponytail ↗

    Makes Claude choose the simplest solution that works: standard library first, no code that doesn't need to exist.

    74.2k installsSafety-scanned 5 Oct 2026 at b9a1051 · scan cleanWorks in: Chat · Cowork · Claude Coded=$(mktemp -d) && git -C "$d" init -q && git -C "$d" fetch -q --depth 1 https://github.com/dietrichgebert/ponytail.git b9a10510d978f7c94ac3256d05f4f0e888b6a78a && git -C "$d" checkout -q FETCH_HEAD && mkdir -p .claude/skills && cp -R "$d/skills/ponytail" .claude/skills/ponytail && rm -rf "$d"
  2. skill

    verification-loop ↗

    Build, types, lint, tests and a security check before calling work done.

    Safety-scanned 5 Oct 2026 at ef648e0 · scan cleanWorks in: Chat · Cowork · Claude Coded=$(mktemp -d) && git -C "$d" init -q && git -C "$d" fetch -q --depth 1 https://github.com/affaan-m/ECC.git ef648e01899ba3e8dc6371642deaaf64b4477775 && git -C "$d" checkout -q FETCH_HEAD && mkdir -p .claude/skills && cp -R "$d/skills/verification-loop" .claude/skills/verification-loop && rm -rf "$d"
  3. skill

    search-first ↗

    Looks for an existing tool before writing custom code.

    Safety-scanned 5 Oct 2026 at ef648e0 · scan cleanWorks in: Chat · Cowork · Claude Coded=$(mktemp -d) && git -C "$d" init -q && git -C "$d" fetch -q --depth 1 https://github.com/affaan-m/ECC.git ef648e01899ba3e8dc6371642deaaf64b4477775 && git -C "$d" checkout -q FETCH_HEAD && mkdir -p .claude/skills && cp -R "$d/skills/search-first" .claude/skills/search-first && rm -rf "$d"
  4. skill

    safety-guard ↗

    Reminds Claude to ask before dangerous commands like deleting folders or force-pushing. A reminder, not a lock.

    Safety-scanned 5 Oct 2026 at ef648e0 · reviewed: safe with caveats

    A reminder to the AI to ask before dangerous commands, not a lock: it ships no hook, so don't rely on it to stop anything.

    Works in: Chat · Cowork · Claude Coded=$(mktemp -d) && git -C "$d" init -q && git -C "$d" fetch -q --depth 1 https://github.com/affaan-m/ECC.git ef648e01899ba3e8dc6371642deaaf64b4477775 && git -C "$d" checkout -q FETCH_HEAD && mkdir -p .claude/skills && cp -R "$d/skills/safety-guard" .claude/skills/safety-guard && rm -rf "$d"
  5. skill

    security-review ↗

    A checklist review of sign-in, inputs, secrets and payments.

    Safety-scanned 5 Oct 2026 at ef648e0 · reviewed: safe

    A security checklist; it changes nothing on its own.

    Works in: Chat · Cowork · Claude Coded=$(mktemp -d) && git -C "$d" init -q && git -C "$d" fetch -q --depth 1 https://github.com/affaan-m/ECC.git ef648e01899ba3e8dc6371642deaaf64b4477775 && git -C "$d" checkout -q FETCH_HEAD && mkdir -p .claude/skills && cp -R "$d/skills/security-review" .claude/skills/security-review && rm -rf "$d"
  6. plugin

    claude-security ↗

    Anthropic's deep security scan of your code. Thorough, slow and token-heavy.

    by AnthropicSafety-scanned 5 Oct 2026 at d182ca4 · reviewed: safe with caveats

    Asks before it starts and never applies fixes itself, but a full scan can burn a lot of tokens (its own docs call a whole-repo scan hours-long and expensive). Start with a small scope or low effort.

    Works in: Chat (part) · Cowork · Claude Codeclaude plugin marketplace add https://github.com/anthropics/claude-plugins-official.git --scope project && claude plugin install claude-security@claude-plugins-official --scope project