verify is a skill in garrytan/gstack, last changed 31 Oct 2026. It can touch credentials, run shell commands and pre-approve tools — read the findings before installing.
Build loop while coding: run the repo's checks and the tests /ship would pick, fix, repeat until green. (gstack)
At a glance
What it can touch
How much a skill can do, not whether it is risky.
Pattern check
1 item to review
Broad tools pre-approved in allowed-tools
R34 · High · SKILL.md:12Commit 8695938 · 31 Oct 2026
How the check worksPattern check:1 item to reviewSee it
Install
Each tab says whether it installs commit 8695938, the one we checked, or the latest version.
OpenCode also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Goose also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Windsurf (Devin Desktop) also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Zed also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Roo Code also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Factory Droid also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Junie also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Amp also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
No install command here reaches Kiro. Copy the skill's folder into .kiro/skills/ in your project, or ~/.kiro/skills/ for all your projects. garrytan/gstack/verify (opens in a new tab)
Antigravity also looks in .agents/skills/, so the Any agent steps reach it with This project. For All projects, see where Antigravity looks.
Cline also looks in .claude/skills/, so the Claude Code steps reach it with This project. For All projects, see where Cline looks.
Read this before installing: Broad tools pre-approved in allowed-tools — SKILL.md:12
Claude Code
Pinned to commit 8695938, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .claude/skills &&mkdir .claude/skills/verify &&cp -R "$tmp"/verify/. .claude/skills/verify/ &&rm -rf "$tmp"If Claude Code was already running and this created the skills folder, run /reload-skills.
Claude apps
Pinned to commit 8695938, the one we checked.
Skills in the Claude apps belong to your account rather than to a project.
Make verify.zip, with the skill folder at the top level:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&out="$(mktemp -d)" &&cp -R "$tmp"/verify "$out"/verify &&(cd "$out" && zip -qr - verify) > verify.zip &&rm -rf "$tmp" "$out"In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose verify.zip.
On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.
Codex
Pinned to commit 8695938, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .agents/skills &&mkdir .agents/skills/verify &&cp -R "$tmp"/verify/. .agents/skills/verify/ &&rm -rf "$tmp"Codex picks up new skills on its own; restart it if this one does not appear.
Cursor
Pinned to commit 8695938, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .cursor/skills &&mkdir .cursor/skills/verify &&cp -R "$tmp"/verify/. .cursor/skills/verify/ &&rm -rf "$tmp"Copilot & VS Code
Pinned to commit 8695938, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .github/skills &&mkdir .github/skills/verify &&cp -R "$tmp"/verify/. .github/skills/verify/ &&rm -rf "$tmp"In a running Copilot CLI session, run /skills reload.
Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.
gh skill install garrytan/gstack verify/SKILL.md@8695938e7464ebfb8e4b26da324b23dc1598b439 --agent github-copilot --scope projectGemini CLI
Pinned to commit 8695938, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .gemini/skills &&mkdir .gemini/skills/verify &&cp -R "$tmp"/verify/. .gemini/skills/verify/ &&rm -rf "$tmp"In a running session, run /skills reload.
Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.
gemini skills install https://github.com/garrytan/gstack.git --path verify --scope workspaceAny agent
Pinned to commit 8695938, the one we checked.
OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity read .agents/skills in a project.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/garrytan/gstack.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8695938e7464ebfb8e4b26da324b23dc1598b439 &&git -C "$tmp" sparse-checkout set -- verify &&git -C "$tmp" checkout -q 8695938e7464ebfb8e4b26da324b23dc1598b439 &&mkdir -p .agents/skills &&mkdir .agents/skills/verify &&cp -R "$tmp"/verify/. .agents/skills/verify/ &&rm -rf "$tmp"Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.
npx skills@1.7.4 add garrytan/gstack --skill verifyWhat it can touch
From the files and frontmatter at commit 8695938. This is how much a skill can do, not whether it is risky.
Pattern check
Pattern check: 1 item to review · commit 8695938 · 31 Oct 2026
We checked every text file in this skill, at commit 8695938 on 31 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.
Format check
Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.
Agent Skills specPasses with warnings
The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.
- Warning
Fields outside the spec: preamble-tier, version and triggers. Uploads to the Claude apps and API, and the spec's validator, reject the file; most agents ignore these fields. O1
Fix: Delete them for a portable skill, or keep them if you only target the agents that read them.
- Warning
allowed-tools is a list; the spec defines a space-separated string. gh skill publish rejects a list, though Claude Code accepts one. O5
Fix: Write it on one line: allowed-tools: Bash Read Edit Grep Glob AskUserQuestion
- Note
The description doesn't say when to use the skill. D6
Fix: Add a sentence such as "Use when …" naming the requests or files that should trigger it.
- Note
There is no license field, so readers can't tell whether they may reuse the skill. O2
Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
- Warning
Claude CodePasses
Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.
- Note
Claude Code ignores fields it doesn't know: preamble-tier, version and triggers. O1
Fix: Check the spelling against Claude Code's field list, or delete them.
- Note
Claude apps & API uploadFails
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Error
Upload and packaging fail on fields outside the spec: preamble-tier, version and triggers. O1
Fix: Delete them, and keep your own data under metadata as text values.
- Note
allowed-tools is a list; the spec defines a space-separated string. O5
Fix: Write it on one line: allowed-tools: Bash Read Edit Grep Glob AskUserQuestion
- Error
OpenAI (Codex & API)Passes with warnings
Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.
- Warning
Fields outside the spec: preamble-tier, version and triggers. Codex ignores them; OpenAI doesn't say whether its upload accepts them. O1
Fix: Delete them, or move your own data under metadata as text values.
- Note
allowed-tools is a list; the spec defines a space-separated string. O5
Fix: Write it on one line: allowed-tools: Bash Read Edit Grep Glob AskUserQuestion
- Warning
VS Code & CopilotPasses
VS Code reads skills one folder below .github/skills, .claude/skills or .agents/skills and falls back to the folder name when the name is missing or differs; GitHub's Copilot docs require the exact name SKILL.md.
- Note
VS Code ignores fields it doesn't support: preamble-tier, version and triggers. O1
Fix: Delete them unless another agent you target reads them.
- Note
allowed-tools is a list; the spec defines a space-separated string. O5
Fix: Write it on one line: allowed-tools: Bash Read Edit Grep Glob AskUserQuestion
- Note
SKILL.md
Files
2 files
| Path | Size |
|---|---|
| SKILL.md (opens in a new tab) | 11 KB |
| SKILL.md.tmpl (opens in a new tab) | 3.1 KB |
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