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You need Node.js 18.17 or newer, Python 3.9 or newer available as python3 or python, Git, and a supported agent host. Use an existing Git repository with a clean working tree and an origin/main branch for this walkthrough.
1

Clone GSD Path and install your skills

Run these commands in the directory where you keep source repositories:
Replace --codex with your host flag, combine flags such as --claude --cursor, or use --all for every supported host.
2

Add project rules

Stay in the GSD Path clone. Replace /absolute/path/to/your-project with your target repository’s absolute path:
This installs project rules and the local status runtime. If managed contracts already exist, installation refuses to overwrite them. Follow updating an existing project instead.
3

Open the target project and restart your agent

Start a new agent session in your target repository so it loads the skills. Invoke the router:
For OpenCode stable, ask the agent to load and use the gsd-path skill.
4

Define the outcome and review the plan

Describe what you want to achieve, who will use it, how you will know it works, and what is out of scope. Review the linked intent draft before approval. Review the wave summary and task scope before approving build.The router stops for required decisions. A directly invoked phase skill stops at its handoff; invoke the router again to continue.
5

Review and ship

Build produces task evidence and wave reviews. Ship checks the final criteria and asks for approval. If review blocks, the pipeline prepares patch work. Follow shipping for direct and pull-request modes.

Know what happens next

Read the phase outputs, approval gates, and quick-lane rules.