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Install in OpenClaw
/install skylv-diff-viewer
Description
Generates beautiful side-by-side diff comparisons for code review
Usage Guidance
This skill appears to be a straightforward, local Node.js diff tool and is internally consistent. Before installing: (1) Review the remainder of diff_engine.js (the file was truncated in the manifest) to confirm it does not invoke network calls or child_process.exec unexpectedly (particularly for a 'git' subcommand). (2) Verify whether the 'git' integration requires the system git binary — if so, expect the skill to call an external process. (3) Don't pass sensitive file paths (SSH keys, password stores, etc.) to the tool unless you run it in a trusted or sandboxed environment. If you want extra assurance, run the script locally in an isolated container and inspect its behavior with representative inputs.
Capability Tags
Capability Assessment
Purpose & Capability
The skill is a local Node.js diff viewer (diff_engine.js) and the included code implements LCS diffing, renderers, and HTML export — coherent with the name/description. One minor inconsistency: SKILL.md shows a 'git' command (node diff_engine.js git ./repo --stat), but the registry metadata lists no required binaries; if the implementation invokes the system 'git' binary (child_process), the skill should declare that dependency. Other than that, required env/configs are appropriately empty.
Instruction Scope
Runtime instructions limit actions to comparing files/directories and exporting HTML. The code reads files passed as arguments and renders diffs; this is expected. Note: like any file-diff tool, it will read arbitrary paths you provide — so avoid supplying sensitive file paths unless you trust the environment.
Install Mechanism
No install spec (instruction-only) and the repo includes a single pure-Node.js file with no external package downloads. That is low risk and proportionate to the stated functionality.
Credentials
The skill declares no environment variables, credentials, or config paths and the visible code uses only fs/path/crypto — crypto is plausibly used for binary file hashing. There are no signs of requests for unrelated secrets or external service credentials.
Persistence & Privilege
always is false and the skill does not request elevated persistence or attempt to modify other skills. Autonomous invocation is allowed (platform default) but the skill itself does not ask for persistent privileges.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install skylv-diff-viewer - After installation, invoke the skill by name or use
/skylv-diff-viewer - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.1
- Added frontmatter section with description, keywords, name, and triggers at the top of SKILL.md.
- Introduced a new "Usage" section outlining installation, configuration, and usage steps.
- No code or feature changes; documentation only.
v1.0.0
Initial release: professional diff viewer for code and text files.
- Offers LCS-based diff algorithm with syntax highlighting.
- Supports unified and side-by-side views, word-level diffs, and directory comparison.
- Exports diffs as standalone HTML with dark VS Code theme and statistics.
- Integrates with git for repository diffs.
- Handles large files (streaming for >10MB).
- Competitive advantage over simple markdown and diff tools.
Metadata
Frequently Asked Questions
What is Skylv Diff Viewer?
Generates beautiful side-by-side diff comparisons for code review. It is an AI Agent Skill for Claude Code / OpenClaw, with 75 downloads so far.
How do I install Skylv Diff Viewer?
Run "/install skylv-diff-viewer" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Skylv Diff Viewer free?
Yes, Skylv Diff Viewer is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Skylv Diff Viewer support?
Skylv Diff Viewer is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Skylv Diff Viewer?
It is built and maintained by SKY-lv (@sky-lv); the current version is v1.0.1.
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