docs: Update documentation for controller PR #2131

[tarrencev]

This PR updates the documentation to reflect changes made in cartridge-gg/controller#2131

**Original PR Details:**
- Title: Remove custom starterpack support in favor of onchain registry
- Files changed: examples/next/src/components/Starterpack.tsx

packages/controller/src/controller.ts
packages/controller/src/types.ts
packages/keychain/src/components/purchasenew/starterpack/starter-item.tsx
packages/keychain/src/components/purchasenew/starterpack/starterpack.tsx
packages/keychain/src/context/purchase.tsx
packages/keychain/src/hooks/starterpack.ts
packages/keychain/src/utils/tests/purchase-display.test.ts
packages/keychain/src/utils/tests/starterpack-price.test.ts
packages/keychain/src/utils/tests/starterpack-url.test.ts
packages/keychain/src/utils/connection/index.ts
packages/keychain/src/utils/payments.ts
packages/keychain/src/utils/starterpack-url.ts
packages/keychain/src/utils/starterpack.ts

Please review the documentation changes to ensure they accurately reflect the controller updates.

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Note

Rewrites Controller purchasing docs to require onchain starterpack IDs, removes custom StarterPack configuration, and updates references and examples across pages.

• Purchasing / API:
  • Change openStarterPack signature to openStarterPack(starterpackId: string) and remove support for custom StarterPack objects.
  • Delete examples/imports using StarterPack and custom pack construction; keep StarterPackItem and StarterPackItemType only for UI rendering.
  • Add Onchain Starterpack Registry section with breaking-change notice and migration guidance.
• Configuration:
  • Update openStarterPack description to reference bundles from the onchain registry.
• Overview:
  • Replace monetization bullet with emphasis on an onchain starterpack registry for immutable bundles.

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Project	Deployment	Preview	Updated (UTC)
docs	Ready	Preview	Oct 21, 2025 10:42pm

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PR Review Analysis

Reviewing the documentation updates for controller PR #2131 (removing custom starterpack support).

Todo List:

• Read and analyze configuration.md changes
• Read and analyze overview.md changes
• Read and analyze purchasing.md changes (main file)
• Check API documentation accuracy
• Verify breaking change documentation
• Review migration guidance
• Provide comprehensive feedback

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Review Feedback

✅ Overall Assessment: Strong Documentation Update

This PR successfully updates the documentation to reflect the breaking changes introduced in controller PR #2131. The changes are well-structured and comprehensive.

Code Quality & Best Practices

Excellent:

• Clear, consistent documentation structure across all files
• Proper use of TypeScript code examples with correct syntax
• Well-organized content with logical flow and appropriate headings
• Good use of warning boxes and breaking change notices

API Documentation Accuracy

Strong:

• openStarterPack(starterpackId: string) signature is correctly updated in configuration.md:172
• Method descriptions accurately reflect the new onchain registry requirement
• TypeScript interfaces (StarterPackItem, StarterPackItemType) are properly documented for UI rendering purposes
• Import statements are updated to remove deprecated custom StarterPack references

Breaking Change Documentation

Excellent:

• Clear warning box in purchasing.md:101-105 highlighting the breaking change
• Explicit version information (Controller v2.0) specified
• Migration guidance provided with actionable steps
• Context about why the change was made (onchain metadata, immutability, security)

Migration Guidance

Good with Minor Enhancement Opportunity:

• The documentation explains what developers need to do (register starterpacks in Arcade Registry)
• However, it could benefit from more specific guidance on how to register starterpacks in the Arcade Registry Contract

Recommendation: Consider adding a link or brief section about the registration process.

Content Accuracy

Strong:

• Overview change (overview.md:47) correctly emphasizes "onchain starterpack registry for secure, immutable bundles"
• Technical details about Merkle Drop claims, cross-chain support, and fee structures remain accurate
• Removed references to custom StarterPack objects throughout

Documentation Structure & Flow

Excellent:

• Logical progression from Quick Start → API Reference → Breaking Changes → Implementation Details
• Good balance of high-level concepts and technical specifics
• Clear separation between what's deprecated vs. what remains available

Security Considerations

Positive:

• The move to an onchain registry improves security posture
• Documentation properly emphasizes the immutability and validation benefits
• No security concerns identified in the documentation changes

Minor Suggestions

1. Line 104 in purchasing.md: Consider adding a link to documentation about the Arcade Registry Contract registration process
2. Consistency: All three files properly reflect the changes - good consistency across the documentation

Test Coverage

While this is documentation-only, the changes align well with the described controller changes that removed 13 files and updated type definitions.

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Final Verdict: ✅ Approve

This documentation update accurately reflects the controller changes, provides clear migration guidance, and maintains high documentation quality standards. The breaking change is well-communicated with appropriate warnings and context.

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