diffity: Mac app to review the code written by you or your agent with Claude in the loop

by nilbuild · Agent Tool · ★ 857

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Security audit verdict: SAFE · quality 60/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

Quick Facts

Stars857
Forks62
LanguageTypeScript
CategoryAgent Tool
LicenseMIT
Quality Score60/100
Open Issues5
Last Updated2026-10-08
Created2026-03-16
Platformsclaude-code, node
Est. Tokens~15k

About diffity

diffity Diffity is a Mac app for reviewing code changes, yours or your agent's, GitHub-style, with Claude Code in the loop. macOS 13.3 or later, Apple Silicon and Intel. The AI features need Claude Code (logged in) and Node.js. Claude works through your comments, edits the code an

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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