feat: private counter

[jonasXchen]

Summary by CodeRabbit

Release Notes

• New Features

  • Private counter mode with ephemeral rollup integration for delegated counter operations
  • Public/private mode switching with delegation and undelegation controls
  • Enhanced counter state management syncing across multiple environments

• Updates

  • Upgraded core SDK dependencies and Anchor package versions
  • Improved TypeScript compiler configuration for better compatibility
  • Refined wallet provider endpoint defaults

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Project	Deployment	Actions	Updated (UTC)
er-rolldice	Ready	Preview, Comment	Apr 24, 2026 11:48pm
magicblock-engine-examples	Ready	Preview, Comment	Apr 24, 2026 11:48pm
magicblock-rewards-dashboard	Ready	Preview, Comment	Apr 24, 2026 11:48pm
spl-tokens	Ready	Preview, Comment	Apr 24, 2026 11:48pm

[coderabbitai]

Caution

Review failed

Pull request was closed or merged during review

Walkthrough

This PR restructures the anchor-counter example into separate public and private counter programs with a rewritten React frontend, upgrades ephemeral-rollups-sdk dependencies across projects, and transitions to MagicIntentBundleBuilder for commitment operations. It introduces new private delegation flows and test infrastructure while updating related example projects.

Changes

Cohort / File(s)	Summary
Program Restructuring anchor-counter/programs/private-counter/*, anchor-counter/programs/public-counter/Cargo.toml, anchor-counter/programs/public-counter/src/lib.rs	Splits counter into public-counter (renamed from anchor-counter) and new private-counter programs. Private-counter adds permission-based delegation, ephemeral state transitions, and magic intent bundle commits. Both programs refactored to use MagicIntentBundleBuilder instead of direct account helpers.
Frontend Rewrite anchor-counter/app/app/src/App.tsx (deleted), anchor-counter/app/src/App.tsx, anchor-counter/app/src/components/Square.tsx, anchor-counter/app/src/index.css	Replaces legacy App component with new implementation supporting both public and private delegation modes. Adds ephemeral counter state syncing, TEE auth token fetching, temp keypair management, and delegation UI. Extends Square component with loading/placeholder states and adds CSS for toggle controls and loader animations.
Frontend Configuration & Cleanup anchor-counter/app/Anchor.toml, anchor-counter/app/package.json, anchor-counter/app/tsconfig.json, anchor-counter/app/src/components/Wallet.tsx, anchor-counter/app/LICENSE, anchor-counter/app/README.md, anchor-counter/app/app/*	Updates Anchor config from localnet to devnet, removes token-minter program mappings, upgrades Anchor/SDK dependencies. Changes default RPC endpoint, replaces tsconfig with stricter settings, simplifies README, removes legacy LICENSE, and deletes nested app subdirectory files.
Test Infrastructure anchor-counter/tests/private-counter.ts, anchor-counter/tests/public-counter.ts, anchor-counter/tests/advanced-magic.ts	Introduces new end-to-end test for private counter with ER delegation and permission flows. Refactors existing tests to target renamed public-counter program, adds error handling for balance fetches, and updates provider initialization patterns.
Repository Maintenance anchor-counter/.gitignore, anchor-counter/package.json, anchor-counter/target/deploy/*, anchor-counter/target/idl/*	Updates gitignore for magicblock-test-storage, adds bs58/tweetnacl dependencies, removes stale keypair and IDL files.
Related Examples Updates anchor-rock-paper-scissor/programs/.../Cargo.toml, anchor-rock-paper-scissor/programs/.../src/lib.rs, rewards-delegated-vrf/Anchor.toml, rewards-delegated-vrf/programs/.../Cargo.toml, rewards-delegated-vrf/programs/.../src/instructions/undelegate_reward_list.rs	Upgrades ephemeral-rollups-sdk across projects (rock-paper-scissor 0.8.0→0.11.0, rewards 0.10.5→0.11.1), updates rock-paper-scissor program ID, adds method signature change for commit operations, and updates reward delegation imports.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• feat: fix example and add local UI counter UI #39: Directly modifies the same anchor-counter frontend files (App.tsx, README, tsconfig, components), indicating overlapping UI/UX changes.
• feat: rewards program and dashboard as example #71: Shares the MagicIntentBundleBuilder migration pattern and ephemeral-rollups-sdk version updates across multiple programs.
• feat: added pinocchio counter example #57: Updates anchor-rock-paper-scissor with matching ephemeral-rollups-sdk dependency bumps and program-level refactoring.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 78.57% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat: private counter' directly and clearly describes the main change: adding a new private counter program alongside the existing public counter, as evidenced by the addition of the private-counter program directory with full implementation and corresponding UI/test updates.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jonasXchen/private-counter

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