second-opinion
An agent skill by trailofbits, from trailofbits/skills. Tags: analysis, code-review, developer-tools, github.
What it does
Gets independent code reviews from Codex or Antigravity for uncommitted changes, branch diffs, and commits. Use when the user requests an external review, a second opinion on code, a codex review, a gemini review, an antigravity review, or /second-opinion.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add trailofbits/skills --skill second-opinion
Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/trailofbits/skills
cp -r skills/plugins/second-opinion/skills/second-opinion ~/.claude/skills/second-opinion
Safety box score
Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.
Source
- Repository
- trailofbits/skills (all skills from this repository)
- Path
- plugins/second-opinion/skills/second-opinion/SKILL.md
- Branch
- main
- Collection
- second-opinion
- Updated
- 2026-09-19
Related skills
- github-triage — Triages a repository's open GitHub issues and pull requests via the gh CLI.
- competitors-analysis — Discover, clone, update, and analyze competitor repositories with evidence-based competitive intelligence.
- c-review — Performs comprehensive C/C++ security review for memory corruption, integer overflows, race conditions, and platform-specific vulnerabilities.
- dwarf-expert — Analyzes DWARF debug information in compiled binaries.
- pr-improver — Runs an autonomous review-and-fix improvement loop over the current branch's changes until a PR review comes back clean.
- rust-review — Performs comprehensive Rust security review for safe/unsafe boundary issues, memory safety in unsafe blocks, concurrency hazards, panic-induced DoS.