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<!-- Please submit this PR as a draft initially. Do not mark it as "Ready for review" until the template has been completely filled out, and PR status checks have passed at least once. --> ## **Description** <!-- Write a short description of the changes included in this pull request, also include relevant motivation and context. Have in mind the following questions: 1. What is the reason for the change? 2. What is the improvement/solution? --> [](https://codespaces.new/MetaMask/metamask-extension/pull/39888?quickstart=1) ## **Changelog** <!-- If this PR is not End-User-Facing and should not show up in the CHANGELOG, you can choose to either: 1. Write `CHANGELOG entry: null` 2. Label with `no-changelog` If this PR is End-User-Facing, please write a short User-Facing description in the past tense like: `CHANGELOG entry: Added a new tab for users to see their NFTs` `CHANGELOG entry: Fixed a bug that was causing some NFTs to flicker` (This helps the Release Engineer do their job more quickly and accurately) --> CHANGELOG entry: ## **Related issues** Fixes: ## **Manual testing steps** 1. Go to this page... 2. 3. ## **Screenshots/Recordings** <!-- If applicable, add screenshots and/or recordings to visualize the before and after of your change. --> ### **Before** <!-- [screenshots/recordings] --> ### **After** <!-- [screenshots/recordings] --> ## **Pre-merge author checklist** - [ ] I've followed [MetaMask Contributor Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Extension Coding Standards](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/CODING_GUIDELINES.md). - [ ] I've completed the PR template to the best of my ability - [ ] I’ve included tests if applicable - [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format if applicable - [ ] I’ve applied the right labels on the PR (see [labeling guidelines](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/LABELING_GUIDELINES.md)). Not required for external contributors. ## **Pre-merge reviewer checklist** - [ ] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed). - [ ] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots. <!-- CURSOR_SUMMARY --> --- > [!NOTE] > <sup>[Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) is generating a summary for commit d4f1f4a. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup> <!-- /CURSOR_SUMMARY -->
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<!-- Please submit this PR as a draft initially. Do not mark it as "Ready for review" until the template has been completely filled out, and PR status checks have passed at least once. --> ## **Description** <!-- Write a short description of the changes included in this pull request, also include relevant motivation and context. Have in mind the following questions: 1. What is the reason for the change? 2. What is the improvement/solution? --> [](https://codespaces.new/MetaMask/metamask-extension/pull/39889?quickstart=1) ## **Changelog** <!-- If this PR is not End-User-Facing and should not show up in the CHANGELOG, you can choose to either: 1. Write `CHANGELOG entry: null` 2. Label with `no-changelog` If this PR is End-User-Facing, please write a short User-Facing description in the past tense like: `CHANGELOG entry: Added a new tab for users to see their NFTs` `CHANGELOG entry: Fixed a bug that was causing some NFTs to flicker` (This helps the Release Engineer do their job more quickly and accurately) --> CHANGELOG entry: ## **Related issues** Fixes: ## **Manual testing steps** 1. Go to this page... 2. 3. ## **Screenshots/Recordings** <!-- If applicable, add screenshots and/or recordings to visualize the before and after of your change. --> ### **Before** <!-- [screenshots/recordings] --> ### **After** <!-- [screenshots/recordings] --> ## **Pre-merge author checklist** - [ ] I've followed [MetaMask Contributor Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Extension Coding Standards](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/CODING_GUIDELINES.md). - [ ] I've completed the PR template to the best of my ability - [ ] I’ve included tests if applicable - [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format if applicable - [ ] I’ve applied the right labels on the PR (see [labeling guidelines](https://github.com/MetaMask/metamask-extension/blob/main/.github/guidelines/LABELING_GUIDELINES.md)). Not required for external contributors. ## **Pre-merge reviewer checklist** - [ ] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed). - [ ] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.
](https://codespaces.new/MetaMask/metamask-extension/pull/39889?quickstart=1){kind=link}
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Builds ready [5e656c1]
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Builds ready [8c7c33d]
⚡ Performance Benchmarks
🌐 Dapp Page Load BenchmarksCurrent Commit: 📄 Localhost MetaMask Test DappSamples: 100 Summary
📈 Detailed Results
Bundle size diffs [🚨 Warning! Bundle size has increased!]
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Description
Summary
This PR integrates the @metamask/perps-controller package into MetaMask Extension, establishing the foundational controller layer for perpetual futures trading functionality. This branch began from a larger feature branch that included both controller integration and UI components - we've decoupled the UI in a separate downstream PR to unblock merging while using a preview package dependency.
The UI PR should go in before this one: #40076
Background
Originally developed as a comprehensive feature branch as a PoC, it included both backend controller integration and frontend UI. This quickly became bloated and difficult to manage, and was blocked to merge due to a preview-package dependency. This PR has been scoped down to focus on controller integration only.
The main blocker for merging was the dependency on a preview package (@metamask/perps-controller@0.0.0-preview-e4aa1532) which cannot be merged into main.
Core Controller Setup:
Dependencies:
Architecture Notes
The PerpsController currently runs in the UI process (instantiated via getPerpsController.ts) but is intentionally structured to support eventual migration to the background script:
Migration Path
To use production package when ready:
Update package.json:
"dependencies": {
"@metamask/perps-controller": "^1.0.0" // Replace preview version
}
Remove previewBuilds section in package.json
Run yarn install and regenerate LavaMoat policies
When integrating the real @metamask/perps-controller we'll also need to remove aliases to the mock services:
Related Branches
Changelog
CHANGELOG entry: Integrate Perps Controller
Related issues
Fixes:
Manual testing steps
Screenshots/Recordings
Before
After
Pre-merge author checklist
Pre-merge reviewer checklist