diffity-diff
Open the diffity diff viewer in the browser to see your changes
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/nilbuild/diffity --skill diffity-diff- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads diffity-diff automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Diffity Diff Skill
You are opening the diffity diff viewer so the user can see their changes in the browser.
Arguments
ref(optional): Git ref to diff (e.g.main..feature,HEAD~3) or a GitHub PR URL (e.g.https://github.com/owner/repo/pull/123). Defaults to working tree changes.
Instructions
-
Check that
diffityis available: runwhich diffity. If not found, install it withnpm install -g diffity. -
Run
diffity <ref>(or justdiffityif no ref) using the Bash tool withrun_in_background: true:- The CLI handles everything: if an instance is already running for this repo it reuses it and opens the browser, otherwise it starts a new server and opens the browser.
- Do NOT use
&or--quiet— let the Bash tool handle backgrounding.
-
Wait 2 seconds, then run
diffity list --jsonto get the port. -
Tell the user diffity is running. Print the URL and keep it short — don't show session IDs, hashes, or other internals. Example:
Diffity is running at http://localhost:5391
When you're ready:
- Leave comments on the diff in your browser, then run /diffity-resolve to fix them
- Or run /diffity-review to get an AI code review
FAQ
What does the diffity-diff skill do?
Open the diffity diff viewer in the browser to see your changes
How do I install diffity-diff?
Run npx skills add https://github.com/nilbuild/diffity --skill diffity-diff in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/diffity-diff/ (personal) or .claude/skills/diffity-diff/ (project).
Which AI agents can use diffity-diff?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is diffity-diff safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains diffity-diff?
It is published by nilbuild in nilbuild/diffity. It has 1,728 recorded installs.
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