hookcode-yml-generator

name: hookcode-yml-generator description: Generate or update a repo-specific .hookcode.yml for this HookCode monorepo. Use when asked to create, modify, or validate .hookcode.yml (dependency installs, preview instances, dev commands, or failure modes) for this repository. tags: - config - yaml - preview

Hookcode Yml Generator

Overview

Generate a valid .hookcode.yml tailored to this repository's dependency install workflow and preview dev-server setup, using the latest parser/runtime rules (display, named {{PORT:<instance>}}, and no fixed local ports).

Workflow

1. Read references/hookcode-yml-logic.md for schema rules, allowlists, and preview behavior.
2. Confirm repo scripts:
   • Root package.json uses pnpm workspaces and exposes dev:frontend and dev.
   • frontend/package.json uses vite for dev.
3. Build the dependency section:
   • Use version: 1.
   • Prefer failureMode: soft unless the user explicitly wants hard failure.
   • Add one Node runtime with install: "pnpm install --frozen-lockfile" at repo root (workdir optional).
4. Build the preview section:
   • Define 1-5 preview.instances entries with unique name values.
   • For frontend, prefer:
     • name: frontend
     • workdir: "frontend"
     • command: "pnpm dev --host 127.0.0.1 --port {{PORT:frontend}}"
     • display: webview
     • readyPattern: "Local:"
   • For backend (optional), prefer:
     • name: backend
     • workdir: "backend"
     • command: "pnpm run prisma:generate && pnpm exec nest start"
     • display: terminal
     • env.PORT: "{{PORT:backend}}"
   • Do not use port: in preview instances (unsupported by schema).
   • Do not use the deprecated -- --port CLI pattern.
5. Validate constraints:
   • workdir is relative and inside the repo.
   • No blocked shell characters in install commands.
   • Max 5 runtimes and 5 preview instances.
   • Any env key ending with PORT must use {{PORT}} or {{PORT:<instance>}}.
   • Loopback URLs such as localhost, 127.0.0.1, 0.0.0.0, and ::1 must not hardcode numeric ports.
   • Named placeholders must reference defined preview instance names.
6. Output .hookcode.yml at repo root and list assumptions (e.g., pnpm workspace install).

Quick Start Template

Copy assets/hookcode.yml.template to <repo-root>/.hookcode.yml, then adjust if the user wants different commands, additional runtimes, or multiple preview instances.

Project Defaults (Recommended)

• Package manager: pnpm workspace install from repo root.
• Runtime: Node (engine >= 18 from package.json).
• Preview: Vite frontend in frontend/ and optional backend preview in backend/.

Output Checklist

• .hookcode.yml includes version: 1.
• Dependency install command is allowlisted and uses pnpm.
• Preview instances use explicit display modes (webview for frontend, terminal for backend when enabled).
• Preview command/env values do not hardcode local fixed ports and do not include deprecated port: fields.
• Placeholder usage is valid ({{PORT}} and {{PORT:<instance>}} target defined instances).
• Notes mention robot overrides can change dependency behavior.