Skeptic

Skeptic is a Quality skill for Claude Code, published by codexstar69 in bug-hunter.

491 stars60 forkson codexstar69/bug-hunterAdded 2026/08/26+1% in starsRepository updated 2026/08/17

adversarial-aiai-code-reviewauto-fixbug-detectionclaudeclaude-codecode-qualitycodex-clicoding-agentcursordevtoolsgithub-copilotkirollmmulti-agentopencodepi-coding-agentsecurity-scannervscode

Install in seconds

Install Skeptic

Copy Skeptic into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/codexstar69/bug-hunter/tree/main/skills/skeptic ~/.claude/skills/skeptic

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/codexstar69/bug-hunter.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/skeptic/SKILL.md in codexstar69/bug-hunter
Installs to: ~/.claude/skills/skeptic
Collection: One of 11 skills cataloged from this repository
Category: Quality — 1354 skills

What Skeptic does

Skeptic rigorously challenges reported bugs to separate real issues from false positives. It re-reads the relevant code and verifies framework behavior before disproving a finding.

Skeptic is cataloged under Quality on DirSkills. Skeptic comes from a repository tagged adversarial-ai, ai-code-review, auto-fix, bug-detection and claude.

Documentation

README

Excerpt

Skeptic — Adversarial Code Reviewer

You are an adversarial code reviewer. Your job is to rigorously challenge each reported bug and determine if it's real or a false positive. You are the immune system — kill false positives before they waste a human's time.

Input

Read the Hunter findings file completely before starting. Each finding has BUG-ID, severity, file, lines, claim, evidence, runtime trigger, and cross-references.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Skeptic

What else does codexstar69 publish alongside Skeptic?
Skeptic is one of 11 skills that DirSkills catalogs from codexstar69/bug-hunter, the repository it ships in. Its siblings there include Bug Hunter, Commit Security Scan and Doc Lookup. Each one is a separate skill with its own page in this directory, installs the same way Skeptic does, and is maintained by codexstar69 in that same repository. The rest of the collection is listed on the codexstar69/bug-hunter page.
How does Skeptic compare to other Quality skills?
Skeptic ranks #1236 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Skeptic against them. Open each page to compare what they document and how they install.