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claude-task-master/tasks/task_051.txt

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# Task ID: 51
# Title: Implement Perplexity Research Command
# Status: pending
# Dependencies: None
# Priority: medium
# Description: Create a command that allows users to quickly research topics using Perplexity AI, with options to include task context or custom prompts.
# Details:
Develop a new command called 'research' that integrates with Perplexity AI's API to fetch information on specified topics. The command should:
1. Accept the following parameters:
- A search query string (required)
- A task or subtask ID for context (optional)
- A custom prompt to guide the research (optional)
2. When a task/subtask ID is provided, extract relevant information from it to enrich the research query with context.
3. Implement proper API integration with Perplexity, including authentication and rate limiting handling.
4. Format and display the research results in a readable format in the terminal, with options to:
- Save the results to a file
- Copy results to clipboard
- Generate a summary of key points
5. Cache research results to avoid redundant API calls for the same queries.
6. Provide a configuration option to set the depth/detail level of research (quick overview vs. comprehensive).
7. Handle errors gracefully, especially network issues or API limitations.
The command should follow the existing CLI structure and maintain consistency with other commands in the system.
# Test Strategy:
1. Unit tests:
- Test the command with various combinations of parameters (query only, query+task, query+custom prompt, all parameters)
- Mock the Perplexity API responses to test different scenarios (successful response, error response, rate limiting)
- Verify that task context is correctly extracted and incorporated into the research query
2. Integration tests:
- Test actual API calls to Perplexity with valid credentials (using a test account)
- Verify the caching mechanism works correctly for repeated queries
- Test error handling with intentionally invalid requests
3. User acceptance testing:
- Have team members use the command for real research needs and provide feedback
- Verify the command works in different network environments
- Test the command with very long queries and responses
4. Performance testing:
- Measure and optimize response time for queries
- Test behavior under poor network conditions
Validate that the research results are properly formatted, readable, and that all output options (save, copy) function correctly.
# Subtasks:
## 1. Create Perplexity API Client Service [pending]
### Dependencies: None
### Description: Develop a service module that handles all interactions with the Perplexity AI API, including authentication, request formatting, and response handling.
### Details:
Implementation details:
1. Create a new service file `services/perplexityService.js`
2. Implement authentication using the PERPLEXITY_API_KEY from environment variables
3. Create functions for making API requests to Perplexity with proper error handling:
- `queryPerplexity(searchQuery, options)` - Main function to query the API
- `handleRateLimiting(response)` - Logic to handle rate limits with exponential backoff
4. Implement response parsing and formatting functions
5. Add proper error handling for network issues, authentication problems, and API limitations
6. Create a simple caching mechanism using a Map or object to store recent query results
7. Add configuration options for different detail levels (quick vs comprehensive)
Testing approach:
- Write unit tests using Jest to verify API client functionality with mocked responses
- Test error handling with simulated network failures
- Verify caching mechanism works correctly
- Test with various query types and options
## 2. Implement Task Context Extraction Logic [pending]
### Dependencies: None
### Description: Create utility functions to extract relevant context from tasks and subtasks to enhance research queries with project-specific information.
### Details:
Implementation details:
1. Create a new utility file `utils/contextExtractor.js`
2. Implement a function `extractTaskContext(taskId)` that:
- Loads the task/subtask data from tasks.json
- Extracts relevant information (title, description, details)
- Formats the extracted information into a context string for research
3. Add logic to handle both task and subtask IDs
4. Implement a function to combine extracted context with the user's search query
5. Create a function to identify and extract key terminology from tasks
6. Add functionality to include parent task context when a subtask ID is provided
7. Implement proper error handling for invalid task IDs
Testing approach:
- Write unit tests to verify context extraction from sample tasks
- Test with various task structures and content types
- Verify error handling for missing or invalid tasks
- Test the quality of extracted context with sample queries
## 3. Build Research Command CLI Interface [pending]
### Dependencies: 51.1, 51.2
### Description: Implement the Commander.js command structure for the 'research' command with all required options and parameters.
### Details:
Implementation details:
1. Create a new command file `commands/research.js`
2. Set up the Commander.js command structure with the following options:
- Required search query parameter
- `--task` or `-t` option for task/subtask ID
- `--prompt` or `-p` option for custom research prompt
- `--save` or `-s` option to save results to a file
- `--copy` or `-c` option to copy results to clipboard
- `--summary` or `-m` option to generate a summary
- `--detail` or `-d` option to set research depth (default: medium)
3. Implement command validation logic
4. Connect the command to the Perplexity service created in subtask 1
5. Integrate the context extraction logic from subtask 2
6. Register the command in the main CLI application
7. Add help text and examples
Testing approach:
- Test command registration and option parsing
- Verify command validation logic works correctly
- Test with various combinations of options
- Ensure proper error messages for invalid inputs
## 4. Implement Results Processing and Output Formatting [pending]
### Dependencies: 51.1, 51.3
### Description: Create functionality to process, format, and display research results in the terminal with options for saving, copying, and summarizing.
### Details:
Implementation details:
1. Create a new module `utils/researchFormatter.js`
2. Implement terminal output formatting with:
- Color-coded sections for better readability
- Proper text wrapping for terminal width
- Highlighting of key points
3. Add functionality to save results to a file:
- Create a `research-results` directory if it doesn't exist
- Save results with timestamp and query in filename
- Support multiple formats (text, markdown, JSON)
4. Implement clipboard copying using a library like `clipboardy`
5. Create a summarization function that extracts key points from research results
6. Add progress indicators during API calls
7. Implement pagination for long results
Testing approach:
- Test output formatting with various result lengths and content types
- Verify file saving functionality creates proper files with correct content
- Test clipboard functionality
- Verify summarization produces useful results
## 5. Implement Caching and Results Management System [pending]
### Dependencies: 51.1, 51.4
### Description: Create a persistent caching system for research results and implement functionality to manage, retrieve, and reference previous research.
### Details:
Implementation details:
1. Create a research results database using a simple JSON file or SQLite:
- Store queries, timestamps, and results
- Index by query and related task IDs
2. Implement cache retrieval and validation:
- Check for cached results before making API calls
- Validate cache freshness with configurable TTL
3. Add commands to manage research history:
- List recent research queries
- Retrieve past research by ID or search term
- Clear cache or delete specific entries
4. Create functionality to associate research results with tasks:
- Add metadata linking research to specific tasks
- Implement command to show all research related to a task
5. Add configuration options for cache behavior in user settings
6. Implement export/import functionality for research data
Testing approach:
- Test cache storage and retrieval with various queries
- Verify cache invalidation works correctly
- Test history management commands
- Verify task association functionality
- Test with large cache sizes to ensure performance