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Agent skill

Clerk Core Workflow B

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Implement session management and middleware with Clerk. An agent skill from jeremylongshore/tons-of-skills-marketplace.

MITAuto-check passedBackend & APIs

Install Clerk Core Workflow B

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill clerk-core-workflow-b -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace clerk-core-workflow-b --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/clerk-core-workflow-b .claude/skills/clerk-core-workflow-b && rm -rf skills-src

Use ~/.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/

Facts

Skill name
clerk-core-workflow-b
GitHub stars
2.8k
Token cost
~839 tokens
SKILL.md length
279 words
Files
3 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Implement session management and middleware with Clerk. An agent skill from jeremylongshore/tons-of-skills-marketplace.

  • Works in 6 steps: Confirm ClerkProvider and env keys are… → Configure clerkMiddleware() matcher /… → Use auth() / currentUser() on protected… → …
  • Managing user sessions
  • SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Clerk Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Implement session management and middleware with Clerk. Use when managing user sessions, configuring route protection, or implementing token refresh and custom JWT templates. Trigger with phrases like "clerk session", "clerk middleware", "clerk route protection", "clerk token", "clerk JWT".

Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/implementation.md` and `references/session-middleware-deep-dive.md`). Compatibility notes: Designed for Claude Code

It sits in Backend & APIs, covering Authentication. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Managing user sessions
  • Configuring route protection
  • Implementing token refresh and custom JWT templates
  • With phrases like clerk session

Example prompts

  • “clerk session”
  • “clerk middleware”
  • “clerk route protection”
  • “/clerk-core-workflow-b”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Grep

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Confirm ClerkProvider and env keys are live (see clerk-install-auth / clerk-hello-world).
  2. Configure clerkMiddleware() matcher / public routes for the routes you want open.
  3. Use auth() / currentUser() on protected pages and API routes; fail closed when unauthenticated.
  4. For custom claims or external JWT consumers, configure session token templates carefully (size limits).
  5. For org-scoped apps, bind authorization to org id + role claims, not only user id.
  6. Verify: signed-out user cannot hit protected routes; signed-in user can; org role gates hold.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. 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:

    • Read
    • Write
    • Edit
    • Grep

    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

    Links to these hosts (documentation or services it may open):

    • clerk.com

    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.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Clerk Core Workflow B loads about 839 tokens when it runs, and up to ~3.9k if it reads all its reference files. Until then it costs about 78 tokens; SKILL.md has 279 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~78
When it runs · the whole SKILL.md, loaded when a task matches
~839
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.9k

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

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 279 words, ~839 tokens.

Download SKILL.mdSave it as .claude/skills/clerk-core-workflow-b/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
clerk-core-workflow-b
description
Implement session management and middleware with Clerk. Use when managing user sessions, configuring route protection, or implementing token refresh and custom JWT templates. Trigger with phrases like "clerk session", "clerk middleware", "clerk route protection", "clerk token", "clerk JWT".
allowed-tools
Read, Write, Edit, Grep
compatibility
Designed for Claude Code
version
1.15.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, clerk, clerk-core, sessions, middleware

Clerk Core Workflow B: Session & Middleware

Overview

Implement session management and route protection with Clerk middleware. Covers clerkMiddleware() configuration, auth() patterns, custom session claims, JWT templates for external services, organization-scoped sessions, and session token v2.

Use when managing user sessions, configuring route protection, or implementing token refresh and custom JWT templates.

Prerequisites

  • @clerk/nextjs installed with ClerkProvider wrapping the app
  • Next.js 14+ with App Router (or adapt patterns for your stack)
  • Working publishable + secret Clerk keys in env

Instructions

  1. Confirm ClerkProvider and env keys are live (see clerk-install-auth / clerk-hello-world).
  2. Configure clerkMiddleware() matcher / public routes for the routes you want open.
  3. Use auth() / currentUser() on protected pages and API routes; fail closed when unauthenticated.
  4. For custom claims or external JWT consumers, configure session token templates carefully (size limits).
  5. For org-scoped apps, bind authorization to org id + role claims, not only user id.
  6. Verify: signed-out user cannot hit protected routes; signed-in user can; org role gates hold.

Deep patterns, JWT templates, and edge cases: session-middleware-deep-dive.md.

Output

  • Session/middleware configuration enforcing the requested protection rules
  • Documented JWT/session claim changes when customized
  • Verification steps for protected vs public routes

Examples

Protect all routes except marketing
User: Protect everything except /, /pricing, and Clerk sign-in routes.
Skill: configures clerkMiddleware publicRoutes / matcher and verifies unauth redirect.
Custom session claim for plan tier
User: Put plan_tier on the session JWT for feature flags.
Skill: configures session token template and validates claim size + read path.

Error Handling

ConditionResponse
Route is accidentally publicFail the verification gate and narrow the matcher before release.
Session claim is absent or staleTreat the request as unauthorized for the dependent feature and refresh through the supported path.
JWT exceeds consumer limitsRemove nonessential claims; retrieve server-side attributes through an authorized backend.
Organization context is missingDeny the org-scoped operation and require explicit selection/role validation.

Resources

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/.curated/clerk-core-workflow-b of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/implementation.md
  • references/session-middleware-deep-dive.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Clerk Core Workflow B 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.

Clerk Core Workflow B compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Clerk Core Workflow B this skilljeremylongshore/tons-of-skills-marketplace2.8k—~839Automated safety check: PassMIT
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Supabase Development and Debuggingsupabase/agent-skills2.7k3 repos~3.6kAutomated safety check: PassMIT
Better Auth Best Practiceslatitude-dev/latitude-llm4.7k7 repos~1.6kAutomated safety check: PassMIT
Gitnexus Exploringaws-samples/sample-kolya-br-proxy10612 repos~749Automated safety check: PassMIT-0
Supabasecurvenote/curvenote1705 repos~2.2kAutomated safety check: PassCustom licence

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Categories

Questions about Clerk Core Workflow B

What does Clerk Core Workflow B do?

Implement session management and middleware with Clerk. An agent skill from jeremylongshore/tons-of-skills-marketplace. Clerk Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Implement session management and middleware with Clerk.

When should I use Clerk Core Workflow B?

Clerk Core Workflow B fits situations like: managing user sessions; configuring route protection; implementing token refresh and custom JWT templates; with phrases like clerk session.

How do I install Clerk Core Workflow B in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clerk-core-workflow-b -a claude-code`. Or copy the skill folder (skills/.curated/clerk-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/clerk-core-workflow-b in your project. Claude Code loads it when a task matches its description.

How do I install Clerk Core Workflow B in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill clerk-core-workflow-b -a codex`. Or copy the skill folder (skills/.curated/clerk-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/clerk-core-workflow-b in your project. Codex loads it when a task matches its description.

Can I use Clerk Core Workflow B 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 jeremylongshore/tons-of-skills-marketplace --skill clerk-core-workflow-b -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/clerk-core-workflow-b, .gemini/skills/clerk-core-workflow-b, .github/skills/clerk-core-workflow-b and .opencode/skills/clerk-core-workflow-b in your project.

What does Clerk Core Workflow B need to run?

SKILL.md names no scripts, command-line tools or credentials: Clerk Core Workflow B is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Grep. Compatibility (from SKILL.md): Designed for Claude Code.

Does Clerk Core Workflow B access the network?

SKILL.md names 1 domain. As links in the text: clerk.com. This is read from the text; nothing was executed.

Is Clerk Core Workflow B 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 Clerk Core Workflow B use?

Clerk Core Workflow B is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Clerk Core Workflow B use?

About 839 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3k tokens, read only when the agent opens those files.

What are the alternatives to Clerk Core Workflow B?

Skills that share tags, products or a category with Clerk Core Workflow B: Fortify Development (coollabsio/coolify, 63k stars), Supabase Development and Debugging (supabase/agent-skills, 2.7k stars), Better Auth Best Practices (latitude-dev/latitude-llm, 4.7k stars) and Gitnexus Exploring (aws-samples/sample-kolya-br-proxy, 106 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Clerk Core Workflow B?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.