Deepsec Documentation Guide
vercel-labs/deepsec
Points the agent at deepsec's own docs to answer questions about initializing, configuring, resuming, scanning with and extending the vulnerability scanner.
Flag only new security issues introduced by this diff. An agent skill from different-ai/openwork.
Install Diff Security Review
$ npx skills add different-ai/openwork --skill diff-security-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install different-ai/openwork diff-security-review --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.warden/skills/diff-security-review .claude/skills/diff-security-review && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .claude/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-reviewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add different-ai/openwork --skill diff-security-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install different-ai/openwork diff-security-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.warden/skills/diff-security-review .agents/skills/diff-security-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .agents/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add different-ai/openwork --skill diff-security-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install different-ai/openwork diff-security-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.warden/skills/diff-security-review .cursor/skills/diff-security-review && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .cursor/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/different-ai/openwork.git --path .warden/skills/diff-security-review--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add different-ai/openwork --skill diff-security-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install different-ai/openwork diff-security-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.warden/skills/diff-security-review .gemini/skills/diff-security-review && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .gemini/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install different-ai/openwork diff-security-reviewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add different-ai/openwork --skill diff-security-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .github/skills && cp -r skills-src/.warden/skills/diff-security-review .github/skills/diff-security-review && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .github/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add different-ai/openwork --skill diff-security-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install different-ai/openwork diff-security-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/different-ai/openwork.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.warden/skills/diff-security-review .opencode/skills/diff-security-review && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "diff-security-review" agent skill from https://github.com/different-ai/openwork/tree/dev/.warden/skills/diff-security-review into .opencode/skills/diff-security-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "diff-security-review", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
diff-security-review- GitHub stars
- 24k
- Token cost
- ~951 tokens
- SKILL.md length
- 510 words
- Files
- 1
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Flag only new security issues introduced by this diff. An agent skill from different-ai/openwork.
- Tasks that involve Security review
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Diff Security Review is an agent skill from different-ai/openwork. Flag only new security issues introduced by this diff. Reported in the Warden security summary.
Its SKILL.md is about 950 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Security, covering Security review. The repository describes itself as: The open-source alternative to Claude Cowork (powered by opencode).
When your agent uses it
- Tasks that involve Security review
Example prompts
- “/diff-security-review”
Requirements
- Pre-approved tools (allowed-tools): Read, Grep, Glob
What it can do on your machine
Read from SKILL.md and the folder at commit e7d03dd. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepGlob
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Diff Security Review loads about 951 tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 510 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 510 words (~951 tokens).
“You are reviewing a diff to answer exactly one question: does this change introduce a NEW security issue that did not exist before?”
- name
- diff-security-review
- allowed-tools
- Read, Grep, Glob
Files
Just SKILL.md in .warden/skills/diff-security-review of different-ai/openwork.
Open the folder on GitHubat commit e7d03dd
Compare with similar skills
Diff Security Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Diff Security Review this skilldifferent-ai/openwork | 24k | — | ~951 | Automated safety check: Pass | Custom licence | |
| Deepsec Documentation Guidevercel-labs/deepsec | 8.1k | — | ~956 | Automated safety check: Pass | Apache-2.0 | |
| Kubernetes Network Security Auditkubeshark/kubeshark | 12k | — | ~7.3k | Automated safety check: Notes | Apache-2.0 | |
| Native Dependency Updatemono/SkiaSharp | 5.6k | — | ~4.1k | Automated safety check: Pass | MIT | |
| Semgrep Security Scantrailofbits/skills | 7.4k | — | ~3.7k | Automated safety check: Notes | CC-BY-SA-4.0 | |
| Skillward AuditFangcun-AI/SkillWard | 143 | — | ~2.9k | Automated safety check: Pass | Custom licence |
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Native Dependency Update
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Update native dependencies (libpng, libexpat, zlib, libwebp, harfbuzz, freetype, libjpeg-turbo, etc.) in SkiaSharp's Skia fork.
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Semgrep Security Scan
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Detects languages, proposes rulesets for approval, then runs the approved Semgrep scan across a codebase and merges the output into one SARIF file.
Skillward Audit
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Security-audit a third-party skill bundle (folder with SKILL.md, or .zip / .tar.gz archive) before installing it, using the SkillWard cloud scanner.
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Checks a codebase for hardcoded secrets, vulnerable dependencies, weak input handling, weak authentication and unsafe transport settings before deployment or merge.
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OpenWork Electron Browser Automation
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Related
Categories
Questions about Diff Security Review
What does Diff Security Review do?
Flag only new security issues introduced by this diff. An agent skill from different-ai/openwork. Diff Security Review is an agent skill from different-ai/openwork. Flag only new security issues introduced by this diff.
When should I use Diff Security Review?
Diff Security Review fits situations like: tasks that involve Security review.
How do I install Diff Security Review in Claude Code?
Run `npx skills add different-ai/openwork --skill diff-security-review -a claude-code`. Or copy the skill folder (.warden/skills/diff-security-review in different-ai/openwork) into .claude/skills/diff-security-review in your project. Claude Code loads it when a task matches its description.
How do I install Diff Security Review in Codex?
Run `npx skills add different-ai/openwork --skill diff-security-review -a codex`. Or copy the skill folder (.warden/skills/diff-security-review in different-ai/openwork) into .agents/skills/diff-security-review in your project. Codex loads it when a task matches its description.
Can I use Diff Security Review in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add different-ai/openwork --skill diff-security-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/diff-security-review, .gemini/skills/diff-security-review, .github/skills/diff-security-review and .opencode/skills/diff-security-review in your project.
What does Diff Security Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Diff Security Review is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Glob.
Does Diff Security Review access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Diff Security Review safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Diff Security Review use?
Diff Security Review has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Diff Security Review use?
About 951 tokens (SKILL.md is roughly 3.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Diff Security Review?
Skills that share tags, products or a category with Diff Security Review: Deepsec Documentation Guide (vercel-labs/deepsec, 8.1k stars), Kubernetes Network Security Audit (kubeshark/kubeshark, 12k stars), Native Dependency Update (mono/SkiaSharp, 5.6k stars) and Semgrep Security Scan (trailofbits/skills, 7.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Diff Security Review?
different-ai (a GitHub organization) maintains it in different-ai/openwork, which has 23,920 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on October 7, 2026.
Source: different-ai/openwork on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.