Clerk
geekskai/blog
Clerk authentication router. An agent skill from geekskai/blog.
Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage.
Install Auth Flow
$ npx skills add gustavscirulis/snapgrid --skill auth-flow -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install gustavscirulis/snapgrid auth-flow --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/gustavscirulis/snapgrid.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .claude/skills/auth-flow && 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 "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .claude/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flowType 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 gustavscirulis/snapgrid --skill auth-flow -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install gustavscirulis/snapgrid auth-flow --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .agents/skills/auth-flow && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .agents/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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 gustavscirulis/snapgrid --skill auth-flow -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install gustavscirulis/snapgrid auth-flow --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .cursor/skills/auth-flow && 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 "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .cursor/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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/gustavscirulis/snapgrid.git --path .claude/skills/skills/generators/auth-flow--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 gustavscirulis/snapgrid --skill auth-flow -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install gustavscirulis/snapgrid auth-flow --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .gemini/skills/auth-flow && 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 "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .gemini/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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 gustavscirulis/snapgrid auth-flowInstalls 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 gustavscirulis/snapgrid --skill auth-flow -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .github/skills/auth-flow && 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 "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .github/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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 gustavscirulis/snapgrid --skill auth-flow -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install gustavscirulis/snapgrid auth-flow --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/skills/generators/auth-flow .opencode/skills/auth-flow && 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 "auth-flow" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/auth-flow into .opencode/skills/auth-flow/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "auth-flow", 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
auth-flow- GitHub stars
- 117
- Used in
- 1 other repo
- Token cost
- ~1.2k tokens
- SKILL.md length
- 352 words
- Files
- 7
- Skills in repo
- 118
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage.
- Works in 6 steps: Project Context Detection → Conflict Detection → Required Capabilities → …
- User wants to add authentication
- SKILL.md covers When This Skill Activates, Pre-Generation Checks, Configuration Questions and Generation Process, plus 4 more sections
- Runs Swift scripts from its folder
What it does
Auth Flow is an agent skill from gustavscirulis/snapgrid. Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage. Use when user wants to add authentication, login, or Sign in with Apple.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files (for example `auth-patterns.md`).
It sits in Backend & APIs, covering Authentication and iOS development. The repository describes itself as: SnapGrid is an open-source Mac app for collecting, organizing, and analyzing UI screenshots. It uses AI to automatically detect UI components and patterns, making it a powerful…
When your agent uses it
- User wants to add authentication
- Sign in with Apple
Example prompts
- “Use the auth-flow skill to generate authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage”
- “/auth-flow”
Requirements
- Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Project Context Detection
- Conflict Detection
- Required Capabilities
- Create Core Files
- Create SwiftUI Components
- Determine File Location
What it can do on your machine
Read from SKILL.md and the folder at commit eb7eaf4. 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:
ReadWriteEditGlobGrepBashAskUserQuestion
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (Swift), which the agent can run.
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
Auth Flow loads about 1.2k tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 352 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, Write, Edit, Glob, Grep, Bash, AskUserQuestion
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 352 words (~1,231 tokens).
“Generate a complete authentication flow with Sign in with Apple, biometric authentication (Face ID/Touch ID), and secure Keychain storage.”
- name
- auth-flow
- allowed-tools
- Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion
Files
SKILL.md and 6 other files in .claude/skills/skills/generators/auth-flow of gustavscirulis/snapgrid.
- SKILL.md
- auth-patterns.md
- templates/AuthenticationManager.swift
- templates/BiometricAuthManager.swift
- templates/KeychainManager.swift
- templates/SignInWithAppleButton.swift
- templates/SignInWithAppleManager.swift
Open the folder on GitHubat commit eb7eaf4
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in gustavscirulis/snapgrid, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Auth Flow 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 |
|---|---|---|---|---|---|---|
| Auth Flow this skillgustavscirulis/snapgrid | 117 | 1 repos | ~1.2k | Automated safety check: Notes | Custom licence | |
| Clerkgeekskai/blog | 103 | 3 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Clerkvvedantb/eva | 101 | — | ~510 | Automated safety check: Pass | MIT | |
| Authenticationdpearson2699/swift-ios-skills | 1.2k | — | ~3.7k | Automated safety check: Pass | Custom licence | |
| Flow Next Drivegmickel/flow-next | 709 | — | ~3.6k | Automated safety check: Pass | MIT | |
| Web3authWeb3Auth/web3auth-examples | 144 | — | ~1.4k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Auth Flow
What does Auth Flow do?
Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage. Auth Flow is an agent skill from gustavscirulis/snapgrid. Generates authentication infrastructure with Sign in with Apple, biometrics, and Keychain storage.
When should I use Auth Flow?
Auth Flow fits situations like: user wants to add authentication; sign in with Apple.
How do I install Auth Flow in Claude Code?
Run `npx skills add gustavscirulis/snapgrid --skill auth-flow -a claude-code`. Or copy the skill folder (.claude/skills/skills/generators/auth-flow in gustavscirulis/snapgrid) into .claude/skills/auth-flow in your project. Claude Code loads it when a task matches its description.
How do I install Auth Flow in Codex?
Run `npx skills add gustavscirulis/snapgrid --skill auth-flow -a codex`. Or copy the skill folder (.claude/skills/skills/generators/auth-flow in gustavscirulis/snapgrid) into .agents/skills/auth-flow in your project. Codex loads it when a task matches its description.
Can I use Auth Flow 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 gustavscirulis/snapgrid --skill auth-flow -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/auth-flow, .gemini/skills/auth-flow, .github/skills/auth-flow and .opencode/skills/auth-flow in your project.
What does Auth Flow need to run?
Going by SKILL.md and its folder, Auth Flow needs Swift for the scripts in its folder. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion.
Does Auth Flow 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 Auth Flow 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 Auth Flow use?
Auth Flow 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 Auth Flow use?
About 1.2k tokens (SKILL.md is roughly 4.9k 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 Auth Flow?
Skills that share tags, products or a category with Auth Flow: Clerk (geekskai/blog, 103 stars), Clerk (vvedantb/eva, 101 stars), Authentication (dpearson2699/swift-ios-skills, 1.2k stars) and Flow Next Drive (gmickel/flow-next, 709 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Auth Flow?
gustavscirulis (a GitHub user) maintains it in gustavscirulis/snapgrid, which has 117 GitHub stars. The repository holds 118 skills in this directory. The repository was last updated on April 30, 2026.
Source: gustavscirulis/snapgrid on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.