# Implement Sequential Thinking MCP
This PR implements the Sequential Thinking MCP, a tool for dynamic and reflective problem-solving through a flexible thinking process. The implementation:
1. Activates the previously commented-out sequential thinking tool in the ThinkingMCP class
2. Registers the ThinkingMCP in the worker entrypoint
3. Adds proper SSE endpoint for the thinking MCP
4. Connects the agent to the thinking MCP and enables its AI tools
5. Updates Durable Object configurations in wrangler.jsonc for all environments
## Type of Change
- [x] ✨ New feature (non-breaking change which adds functionality)
## Areas Affected
- [x] API Endpoints
- [x] Development Workflow
- [x] Deployment/Infrastructure
## Testing Done
- [x] Manual testing performed
## Checklist
- [x] I have performed a self-review of my code
- [x] My changes generate no new warnings
- [x] All tests pass locally
## Additional Notes
The Sequential Thinking tool provides a structured approach to problem-solving that can adapt and evolve as understanding deepens. It allows for revising previous thoughts, branching into new paths, and adjusting the thinking process as needed.
# READ CAREFULLY THEN REMOVE
Remove bullet points that are not relevant.
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## Description
Please provide a clear description of your changes.
---
## Type of Change
Please delete options that are not relevant.
- [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
- [ ] ✨ New feature (non-breaking change which adds functionality)
- [ ] 💥 Breaking change (fix or feature with breaking changes)
- [ ] 📝 Documentation update
- [ ] 🎨 UI/UX improvement
- [ ] 🔒 Security enhancement
- [ ] ⚡ Performance improvement
## Areas Affected
Please check all that apply:
- [ ] Email Integration (Gmail, IMAP, etc.)
- [ ] User Interface/Experience
- [ ] Authentication/Authorization
- [ ] Data Storage/Management
- [ ] API Endpoints
- [ ] Documentation
- [ ] Testing Infrastructure
- [ ] Development Workflow
- [ ] Deployment/Infrastructure
## Testing Done
Describe the tests you've done:
- [ ] Unit tests added/updated
- [ ] Integration tests added/updated
- [ ] Manual testing performed
- [ ] Cross-browser testing (if UI changes)
- [ ] Mobile responsiveness verified (if UI changes)
## Security Considerations
For changes involving data or authentication:
- [ ] No sensitive data is exposed
- [ ] Authentication checks are in place
- [ ] Input validation is implemented
- [ ] Rate limiting is considered (if applicable)
## Checklist
- [ ] I have read the [CONTRIBUTING](https://github.com/Mail-0/Zero/blob/staging/.github/CONTRIBUTING.md) document
- [ ] My code follows the project's style guidelines
- [ ] I have performed a self-review of my code
- [ ] I have commented my code, particularly in complex areas
- [ ] I have updated the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix/feature works
- [ ] All tests pass locally
- [ ] Any dependent changes are merged and published
## Additional Notes
Add any other context about the pull request here.
## Screenshots/Recordings
Add screenshots or recordings here if applicable.
---
_By submitting this pull request, I confirm that my contribution is made under the terms of the project's license._
<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Removed the license header and unused zod import from sequential-thinking.ts to clean up the file.
<!-- End of auto-generated description by cubic. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
* **Chores**
* Removed the license header comment and an unused import from internal files. No changes to features or functionality.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
# READ CAREFULLY THEN REMOVE
Remove bullet points that are not relevant.
PLEASE REFRAIN FROM USING AI TO WRITE YOUR CODE AND PR DESCRIPTION. IF YOU DO USE AI TO WRITE YOUR CODE PLEASE PROVIDE A DESCRIPTION AND REVIEW IT CAREFULLY. MAKE SURE YOU UNDERSTAND THE CODE YOU ARE SUBMITTING USING AI.
- Pull requests that do not follow these guidelines will be closed without review or comment.
- If you use AI to write your PR description your pr will be close without review or comment.
- If you are unsure about anything, feel free to ask for clarification.
## Description
Please provide a clear description of your changes.
---
## Type of Change
Please delete options that are not relevant.
- [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
- [ ] ✨ New feature (non-breaking change which adds functionality)
- [ ] 💥 Breaking change (fix or feature with breaking changes)
- [ ] 📝 Documentation update
- [ ] 🎨 UI/UX improvement
- [ ] 🔒 Security enhancement
- [ ] ⚡ Performance improvement
## Areas Affected
Please check all that apply:
- [ ] Email Integration (Gmail, IMAP, etc.)
- [ ] User Interface/Experience
- [ ] Authentication/Authorization
- [ ] Data Storage/Management
- [ ] API Endpoints
- [ ] Documentation
- [ ] Testing Infrastructure
- [ ] Development Workflow
- [ ] Deployment/Infrastructure
## Testing Done
Describe the tests you've done:
- [ ] Unit tests added/updated
- [ ] Integration tests added/updated
- [ ] Manual testing performed
- [ ] Cross-browser testing (if UI changes)
- [ ] Mobile responsiveness verified (if UI changes)
## Security Considerations
For changes involving data or authentication:
- [ ] No sensitive data is exposed
- [ ] Authentication checks are in place
- [ ] Input validation is implemented
- [ ] Rate limiting is considered (if applicable)
## Checklist
- [ ] I have read the [CONTRIBUTING](https://github.com/Mail-0/Zero/blob/staging/.github/CONTRIBUTING.md) document
- [ ] My code follows the project's style guidelines
- [ ] I have performed a self-review of my code
- [ ] I have commented my code, particularly in complex areas
- [ ] I have updated the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix/feature works
- [ ] All tests pass locally
- [ ] Any dependent changes are merged and published
## Additional Notes
Add any other context about the pull request here.
## Screenshots/Recordings
Add screenshots or recordings here if applicable.
---
_By submitting this pull request, I confirm that my contribution is made under the terms of the project's license._
<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Added a sequential thinking processor for dynamic problem-solving and switched the default model to OpenAI for agent responses.
- **New Features**
- Introduced a SequentialThinkingProcessor to support step-by-step and branching thought processes.
- Added ThinkingMCP agent for advanced reasoning workflows.
- **Dependencies**
- Updated environment to use OpenAI models by default.
<!-- End of auto-generated description by cubic. -->
