hanami-setup

Hanami Setup Persona

Orchestrates project onboarding: from context discovery through provider configuration to DI implementation. Chains three skills through four phases with verification gates.

Constraints

- Context MUST be fully loaded before any configuration work.
  DO NOT proceed without a complete slice map, provider inventory, and settings summary.
  If the app cannot load context (broken boot), fix that first.
- DO NOT configure providers without understanding existing ones.
- DO NOT implement DI without registered providers.
- DO NOT use direct container calls outside of providers.
- All providers MUST boot without errors before setup is considered complete.
- The test suite MUST pass with DI configured.

---

Persona Phases

Phase 1: Context Loading

1. Activate context/load-context: Discover all slices, providers, settings, routes, and patterns.
2. Produce the full context map: slices, providers, settings, route summary, DI conventions.

---

Phase 2: Provider Configuration

1. Activate providers/configure-providers: Review existing providers and configure new ones.
2. For new providers: define settings, create provider file, register component.
3. For existing providers: verify they match conventions and settings are properly typed.

Example — provider file (config/providers/redis.rb):

Hanami.app.register_provider(:redis) do
  prepare do
    require "redis"
  end

  start do
    settings = target["settings"]
    register("redis", Redis.new(url: settings.redis_url))
  end

  stop do
    target["redis"].quit
  end
end

Example — corresponding settings entry (config/settings.rb):

module MyApp
  class Settings < Hanami::Settings
    setting :redis_url, constructor: Types::String
  end
end

Quality Check:

• Every external service has a provider.
• All environment values go through settings (no ENV.fetch in providers).
• Provider registration keys are descriptive.

---

Phase 3: DI Implementation

1. Activate providers/implement-di: Implement dependency injection in consumers.
2. Verify every action and operation that needs injected dependencies uses include Deps[...].
3. Confirm test patterns support constructor injection of test doubles.

Example — action with DI (app/actions/users/create.rb):

module MyApp
  module Actions
    module Users
      class Create < MyApp::Action
        include Deps["operations.users.create"]

        def handle(request, response)
          result = create.(request.params[:user])
          response.status = result.success? ? 201 : 422
        end
      end
    end
  end
end

Example — operation as DI consumer (app/operations/users/create.rb):

module MyApp
  module Operations
    module Users
      class Create
        include Deps["redis", "repositories.users"]

        def call(params)
          # redis and repositories.users are injected automatically
        end
      end
    end
  end
end

Example — test with constructor injection:

RSpec.describe MyApp::Operations::Users::Create do
  subject(:operation) { described_class.new(redis: fake_redis, "repositories.users": fake_repo) }

  let(:fake_redis) { instance_double(Redis) }
  let(:fake_repo)  { instance_double(MyApp::Repositories::Users) }

  it "creates a user" do
    # ...
  end
end

Quality Check:

• No direct container calls exist outside of providers.
• Deps keys match provider registration keys exactly.
• At least one action and one operation are verified with DI.

---

Phase 4: Verification

1. Boot the app and verify all providers start without errors:

   bundle exec hanami console --env=development
   # or for a quick boot check:
   bundle exec hanami db migrate --dry-run 2>&1 | head -20
   

2. Run the test suite to confirm injected dependencies resolve correctly:

   bundle exec rspec
   

3. Verify the slice map matches expectations.
4. Check that settings are properly typed and environment values are set.

---

Error Recovery

Scenario	Recovery
App fails to boot (missing settings)	Define the missing setting in config/settings.rb with proper type constructor. Re-run boot.
Provider fails to start (connection refused)	Verify the external service is running. If it's optional, wrap startup in a rescue block.
Deps key not found	Verify the provider's registration key matches the Deps key exactly. Check for typos.
Test fails after DI (nil dependency)	Ensure the test passes the dependency through the constructor. Check the key name.
ROM auto_registration missing a slice	Verify the slice path is correct. Check that relations follow the expected directory structure.

Output Style / Report

## Hanami Setup Complete

### Context
- Slices: [N] discovered — [list]
- Providers: [N] configured — [list]
- Settings: [N] defined — [summary]

### Providers
- [provider] — registered as "[key]" — [status: new/verified]

### Dependency Injection
- Actions using DI: [N]
- Operations using DI: [N]
- Test patterns verified: Yes / No

### Verification
- App boots: Yes / No
- Tests pass: [N] passed, [N] failed
- Warnings: [any issues to address]