Agent skill · Northern Forge

Schema-First Unlock Ledger Skill

Installable skill for agents: verify Stripe Checkout sessions, map product_id, and never grant Pro from ?unlocked=1 or client flags alone.

Use freeFull core runs in your browser — no account required.
ProFree skill. One-time unlock on this device.
Local-firstYour data stays in the browser unless you export it.

Tools this skill teaches

Install

  1. Open the skill package and load SKILL.md into your agent.
  2. Point the agent at Northern Forge MCP tools listed below.
  3. Run the first tool, then chain the rest for the niche workflow.
# View skill
curl -sL https://northern-forge-labs.vercel.app/tools/unlock-ledger-skill/SKILL.md

# Example agent call (REST)
curl -s https://mcp.justindkamen.com/tools \
  -H 'content-type: application/json' \
  -d '{"name":"get_product","arguments":{}}'

Free vs pro

Free
Pro