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.
Security audit workflow for OPC code, providers, plugins, Electron surfaces, local HTTP bridges, filesystem access, and command execution.
Install Gstack Cso
$ npx skills add LING71671/Open-ClaudeCode --skill gstack-cso -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install LING71671/Open-ClaudeCode gstack-cso --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/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .claude/skills/gstack-cso && 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 "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .claude/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-csoType 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 LING71671/Open-ClaudeCode --skill gstack-cso -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install LING71671/Open-ClaudeCode gstack-cso --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .agents/skills/gstack-cso && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .agents/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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 LING71671/Open-ClaudeCode --skill gstack-cso -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install LING71671/Open-ClaudeCode gstack-cso --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .cursor/skills/gstack-cso && 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 "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .cursor/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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/LING71671/Open-ClaudeCode.git --path plugins/gstack-workflows/skills/gstack-cso--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 LING71671/Open-ClaudeCode --skill gstack-cso -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install LING71671/Open-ClaudeCode gstack-cso --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .gemini/skills/gstack-cso && 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 "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .gemini/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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 LING71671/Open-ClaudeCode gstack-csoInstalls 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 LING71671/Open-ClaudeCode --skill gstack-cso -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .github/skills/gstack-cso && 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 "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .github/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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 LING71671/Open-ClaudeCode --skill gstack-cso -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install LING71671/Open-ClaudeCode gstack-cso --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/LING71671/Open-ClaudeCode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/gstack-workflows/skills/gstack-cso .opencode/skills/gstack-cso && 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 "gstack-cso" agent skill from https://github.com/LING71671/Open-ClaudeCode/tree/main/plugins/gstack-workflows/skills/gstack-cso into .opencode/skills/gstack-cso/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gstack-cso", 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
gstack-cso- GitHub stars
- 960
- Token cost
- ~321 tokens
- SKILL.md length
- 140 words
- Files
- 1
- Skills in repo
- 5
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Security audit workflow for OPC code, providers, plugins, Electron surfaces, local HTTP bridges, filesystem access, and command execution.
- Works in 5 steps: Map the trust boundaries and data flows. → Identify assets: secrets, filesystem… → Review entrypoints that cross boundaries. → …
- Tasks that involve Security review
- SKILL.md covers Scope, Workflow and Output
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Gstack Cso is an agent skill from LING71671/Open-ClaudeCode. Security audit workflow for OPC code, providers, plugins, Electron surfaces, local HTTP bridges, filesystem access, and command execution.
Its SKILL.md is about 320 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: Research archive of Claude Code source and runtime artifacts reconstructed from published npm source maps.
When your agent uses it
- Tasks that involve Security review
Example prompts
- “/gstack-cso”
Requirements
- Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Map the trust boundaries and data flows.
- Identify assets: secrets, filesystem access, provider credentials, session state, command execution, and user prompts.
- Review entrypoints that cross boundaries.
- Test high-confidence concerns with direct code evidence.
- Ignore speculative issues unless there is a concrete exploit path.
What it can do on your machine
Read from SKILL.md and the folder at commit 2980105. 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:
ReadGrepGlobBash
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
Gstack Cso loads about 321 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 140 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Grep, Glob, Bash
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 140 words (~321 tokens).
“Use this skill for a security review with OWASP and STRIDE lenses.”
- name
- gstack-cso
- allowed-tools
- Read, Grep, Glob, Bash
Files
Just SKILL.md in plugins/gstack-workflows/skills/gstack-cso of LING71671/Open-ClaudeCode.
Open the folder on GitHubat commit 2980105
Compare with similar skills
Gstack Cso 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 |
|---|---|---|---|---|---|---|
| Gstack Cso this skillLING71671/Open-ClaudeCode | 960 | — | ~321 | Automated safety check: Notes | 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 |
Similar skills
- Official
Kubernetes Network Security Audit
kubeshark/kubeshark
Hunts for compromised workloads and malicious traffic in a Kubernetes cluster by sweeping network data through Kubeshark MCP, mapped to MITRE ATT&CK.
Native Dependency Update
mono/SkiaSharp
Update native dependencies (libpng, libexpat, zlib, libwebp, harfbuzz, freetype, libjpeg-turbo, etc.) in SkiaSharp's Skia fork.
- Official
Semgrep Security Scan
trailofbits/skills
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
Fangcun-AI/SkillWard
Security-audit a third-party skill bundle (folder with SKILL.md, or .zip / .tar.gz archive) before installing it, using the SkillWard cloud scanner.
Security Audit
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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.
More from LING71671/Open-ClaudeCode
Gstack Document Release
LING71671/Open-ClaudeCode
Brings project documentation back in line with shipped behavior by reading the current diff for user-visible changes and updating only the docs they affect.
Root-Cause Investigation Workflow
LING71671/Open-ClaudeCode
Diagnoses a bug, crash, regression or flaky behavior by reproducing it and testing several causes before applying the smallest fix.
Gstack QA Only
LING71671/Open-ClaudeCode
Read-only QA report for an OPC desktop flow, CLI command, local URL, staging URL, or documented user journey.
Gstack Pre-Landing Review
LING71671/Open-ClaudeCode
Runs a staff-engineer style review over the current diff before merging, listing findings by severity with file, impact and a suggested fix.
Related
Categories
Questions about Gstack Cso
What does Gstack Cso do?
Security audit workflow for OPC code, providers, plugins, Electron surfaces, local HTTP bridges, filesystem access, and command execution. Gstack Cso is an agent skill from LING71671/Open-ClaudeCode. Security audit workflow for OPC code, providers, plugins, Electron surfaces, local HTTP bridges, filesystem access, and command execution.
When should I use Gstack Cso?
Gstack Cso fits situations like: tasks that involve Security review.
How do I install Gstack Cso in Claude Code?
Run `npx skills add LING71671/Open-ClaudeCode --skill gstack-cso -a claude-code`. Or copy the skill folder (plugins/gstack-workflows/skills/gstack-cso in LING71671/Open-ClaudeCode) into .claude/skills/gstack-cso in your project. Claude Code loads it when a task matches its description.
How do I install Gstack Cso in Codex?
Run `npx skills add LING71671/Open-ClaudeCode --skill gstack-cso -a codex`. Or copy the skill folder (plugins/gstack-workflows/skills/gstack-cso in LING71671/Open-ClaudeCode) into .agents/skills/gstack-cso in your project. Codex loads it when a task matches its description.
Can I use Gstack Cso 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 LING71671/Open-ClaudeCode --skill gstack-cso -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gstack-cso, .gemini/skills/gstack-cso, .github/skills/gstack-cso and .opencode/skills/gstack-cso in your project.
What does Gstack Cso need to run?
SKILL.md names no scripts, command-line tools or credentials: Gstack Cso is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash.
Does Gstack Cso 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 Gstack Cso safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Gstack Cso use?
Gstack Cso 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 Gstack Cso use?
About 321 tokens (SKILL.md is roughly 1.3k 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 Gstack Cso?
Skills that share tags, products or a category with Gstack Cso: 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 Gstack Cso?
LING71671 (a GitHub user) maintains it in LING71671/Open-ClaudeCode, which has 960 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on July 22, 2026.
Source: LING71671/Open-ClaudeCode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.