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Differential Review

Checked
trailofbits·vlatest·backend·CC-BY-SA-4.0

Analyzes code changes across commits to identify subtle regressions or unexpected behavior shifts in complex systems.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add trailofbits/skills --skill differential-review -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

trailofbits

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned trailofbits/skills at 82fe822625.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
82fe822625
Manifest
plugins/differential-review/skills/differential-review/SKILL.md
Scanned
6 files, 1,231 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The differential-review skill enables AI agents to analyze and compare code changes across different versions or branches. It identifies differences in code, highlights potential issues, and provides insights into the impact of modifications.

When to use it

  • Reviewing pull requests for code quality and security concerns
  • Comparing two versions of a software project to understand changes
  • Identifying vulnerabilities introduced by new commits

Key capabilities

  • Code diff analysis
  • Security vulnerability detection in diffs
  • Comparison of code branches or revisions

Example prompts

  • "Analyze the differences between branch main and feature-x for security issues."
  • "Review this pull request and highlight any potential bugs introduced by the changes."
  • "Compare the latest commit with its parent and identify risky modifications."

Tips & gotchas

  • Ensure that the code repositories being compared are accessible to the AI agent.
  • This skill works best when provided with clear, structured diffs or access to version control systems like Git.