SessionStart

SessionStart is a hook for Claude Code from jameywarren/shopify-claude-quickstart. Its token cost is not measured, scanned A, original, MIT.

A session-start hook that displays Shopify project reminders and runs small shell commands when a coding session begins. A hook is an automatic action triggered by an event such as opening a session.

In plain words
What is it for?
Use it to show available project commands, create the documentation folder, and append a timestamp to the session activity log.
Why use it?
It puts setup, recovery, validation, deployment, and logging reminders in view and records when the session started.

Hook for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: mentions CLAUDE.md.

One of 3 entries in settings.json — they are configured in one file and arrive together.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add hooks/jameywarren/shopify-claude-quickstart/session-start
Clone the repo
git clone --depth 1 https://github.com/jameywarren/shopify-claude-quickstart

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for SessionStart

README.md
[![agentmods](https://agentmods.dev/badge/hooks/jameywarren/shopify-claude-quickstart/session-start.svg)](https://agentmods.dev/hooks/jameywarren/shopify-claude-quickstart/session-start)
Your own site
<a href="https://agentmods.dev/hooks/jameywarren/shopify-claude-quickstart/session-start"><img src="https://agentmods.dev/badge/hooks/jameywarren/shopify-claude-quickstart/session-start.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SessionStart scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/settings.json · 21 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "command",
          "command": "printf 'shopify-claude-quickstart loaded.\\n\\nFirst time on this store?\\n  /init-store STORE.myshopify.com   - auth, theme pull, audit, fill CLAUDE.md\\n  /brief-interview                  - fill in client-brief/ conversationally\\n  /brief-quick                      - single-file lightweight brief\\n\\nReturning?\\n  /recover-context                  - re-anchor on where we left off\\n\\nBuilding?\\n  /brand-system  /design-intake  /implement-mockup-module\\n  /homepage-from-brief  /pdp-audit  /metafield-schema  /nav-build  /seo-audit  /alt-text  ...\\n  Type /  to see all commands.\\n\\nReminders:\\n  - Validate GraphQL with shopify-plugin:shopify-admin BEFORE executing\\n  - Mutations require --allow-mutations on shopify store execute\\n  - Push to a DEV theme first, never live\\n  - Run /log-session before closing\\n'"
        },
        {
          "type": "command",
          "command": "mkdir -p docs && echo \"SESSION START: $(date '+%Y-%m-%d %H:%M:%S')\" >> docs/session-activity.log"
        },
        {
          "type": "command",
          "command": "REMOTE=$(git remote get-url origin 2>/dev/null || echo ''); if echo \"$REMOTE\" | grep -q 'shopify-claude-quickstart'; then git fetch origin main --quiet 2>/dev/null; BEHIND=$(git rev-list HEAD..origin/main --count 2>/dev/null || echo 0); [ \"$BEHIND\" -gt '0' ] && printf '\\n⬆  shopify-claude-quickstart has %s new commit(s) on GitHub. Run /toolkit-update to pull the latest.\\n' \"$BEHIND\" || true; fi"
        }
      ]
    }
  ]
}
Same file

What else settings.json configures

This page is one entry in a file that holds 3. Installing the file brings all of them; each is measured and scanned on its own page.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 21 lines scan A e8a8551ec332

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository jameywarren/shopify-claude-quickstart (2 stars, last pushed 4mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.