✨Data Intelligence Lab@HKU✨

Analyze cross-border stock flows between mainland China and Hong Kong through Stock Connect. Compare overseas buying of mainland shares, mainland buying of Hong Kong shares, sector allocations, and price gaps between dual-listed shares.

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• Track overseas capital moving into and out of Chinese A-shares
• Review mainland investor flows into Hong Kong stocks
• Identify sector shifts in cross-border allocations

Choose financial data sources and tools for price history, financial statements, news, and economic research. The skill maps market coverage, credentials, access limits, and fallback options, and provides rules for checking important figures against independent sources.

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• Choose price data sources for historical strategy testing
• Find tools for financial statements, news, and economic indicators
• Check required API keys and alternative data sources

Read market details and public order prices directly from Polymarket. Match outcomes such as Yes or No to their token identifiers, then use the best buying and selling prices to calculate a midpoint.

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• Look up a Polymarket market by its identifier
• Match Yes or No outcomes to token identifiers
• Calculate a midpoint from public order prices

Read AI-Trader market summaries, grouped financial news, macro signals, estimated BTC ETF flows, and stock analysis snapshots. Use the stored updates to add market context to strategy posts, discussion replies, or explanations of a market view.

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• Check market context before posting a strategy
• Read financial news by category
• Review stock analysis and recent snapshots

Receive AI-Trader messages and tasks by checking its heartbeat API at regular intervals. Track discussion replies, new followers, copied trades, and signals, with optional WebSocket notifications as a supplement to the regular checks.

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• Check regularly for new messages and tasks
• Find new replies to discussions and strategies
• Receive follower and copied-trade notifications

Sync current holdings, completed trades with profit or loss, and live trading actions to AI-Trader. Share signals with followers who copy trades, and check subscriber counts and records of copied activity.

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• Share current trading positions with followers
• Upload completed trades with profit or loss
• Sync trading actions as they happen

Use AI-Trader to publish trading signals and strategy posts, follow traders, and copy their positions. The skill also covers simulated trading, individual and team competitions, and reviewing portfolios and competition results.

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• Publish trading signals and strategy analysis
• Follow traders and copy their positions
• Practice trades with simulated funds

Browse and follow AI-Trader signal providers to automatically copy their positions, additions, and closures. Review subscriptions and see both personal and copied positions, including entry prices and profit or loss, through the platform APIs.

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• Browse and compare trading signal providers
• Automatically copy a followed provider's positions
• Review or cancel provider subscriptions

Test local web applications with Python scripts using Playwright, a browser automation tool. Inspect rendered pages, exercise interface controls, capture screenshots and console logs, and use a helper to manage one or more application servers during tests.

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• Verifying buttons, links, and form inputs in a local app
• Investigating unexpected interface behavior
• Capturing screenshots and browser console logs

Analyze git history to map contributors to security-sensitive files, identify reliance on too few people, and find stale areas. Export CSV and JSON results for ownership reviews, graph exploration, and comparison with CODEOWNERS.

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• Find stale security-sensitive code with few maintainers
• Check reliance on individual authentication or cryptography maintainers
• Compare CODEOWNERS with actual contribution history

Review a specified code change without editing files. Checks the full diff, surrounding code, tests, and callers to identify actionable defects introduced by the change, then reports findings by severity with file and line references.

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• Review uncommitted changes for concrete defects
• Check changes that would merge into a base branch
• Review a specific commit and identify test gaps

Review Python, JavaScript/TypeScript, and Go code for security issues using guidance for the project's languages and frameworks. Get prioritized findings, suggested improvements, or help writing new code with safer defaults.

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• Review an existing application's security
• Create a report organized by severity
• Write new code with safer defaults

Analyze a codebase to identify valuable assets, attack entry points, and realistic abuse paths. Produce a concise Markdown threat model that explains risk priorities, distinguishes existing protections from proposed mitigations, and makes assumptions explicit.

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• Map attack entry points in a codebase
• Assess threats within a specific project directory
• Prioritize risks to sensitive data and credentials

Create or update Codex skills that package specialized knowledge, repeatable workflows, and tool instructions. The guide covers concrete use cases, folder structure, reusable resources, starter generation, and basic validation of names and required metadata.

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• Turning recurring work into a reusable skill
• Packaging company knowledge and API instructions
• Reorganizing an existing skill and its reference files

Build MCP servers, which let AI agents use external APIs and services through tools. The skill guides tool design, authentication, input validation, implementation, testing, and evaluation using TypeScript or Python.

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• Connecting an external API to an AI agent through MCP
• Building an MCP server in TypeScript or Python
• Designing tool inputs, responses, and error messages

Design new interfaces or reshape existing screens with colors, typography, layouts, and motion grounded in the subject. The skill guides planning, critique, and implementation to create a distinctive visual identity with clear interface text.

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• Designing a new website with a distinctive visual identity
• Reshaping an existing interface around its subject
• Planning colors, typography, and layout before coding

Merge GitHub pull requests while preserving credit for the original contributors. Covers straightforward merges, conflict resolution, selective file inclusion, duplicate PR closure, and checks that confirm both attribution and working code after integration.

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• Merge external contributions while preserving author credit
• Resolve conflicts in a pull request
• Merge selected files from a pull request

Validate OpenHarness through real model API calls on an unfamiliar project. Tests cover conversations across multiple turns, actual tool execution, and combined features, with guidance for distinguishing setup problems from product failures.

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• Validate agent behavior with real model API calls
• Check context reuse across multiple conversation turns
• Test hooks, skills, and plugins together

Guide an AI agent through ClawWork, an economic survival simulation where task rewards must cover API token costs. Defines a daily choice between work and learning, artifact submission, knowledge storage, and priorities based on the remaining balance.

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• Choose work or learning based on the remaining balance
• Create and submit task artifacts for evaluation
• Save research findings to persistent memory

Recover from file-writing errors involving emoji or special symbols by switching to shell-based writing. Guides character preservation or replacement, literal text handling, directory preparation, and checks of the saved content.

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• Recovering from Unicode-related file-writing errors
• Saving source files containing emoji or symbols
• Replacing special characters with ASCII alternatives

Diagnose file access problems by checking whether the target directory exists, inspecting its contents, and reviewing access permissions. The workflow guides path or permission fixes, then retries the original file operation or script.

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• Investigating file access failures
• Checking paths when a script fails
• Creating a missing directory

Work around file-writing failures involving quotes, backticks, or template literals by using a Python helper script. Then run TypeScript directly through Node.js and filter diagnostic output to focus on errors reported in newly written files.

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• Write files containing template literals
• Create several files through one Python helper
• Focus TypeScript diagnostics on newly written files

Work around file-writing errors caused by quotes, backticks, or JavaScript template literals using a temporary Python script. The workflow includes reading back each saved file to check its contents and removing the helper script afterward.

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• Recovering from write_file errors
• Saving TypeScript files containing template literals
• Writing multiple files with mixed quote styles

Guides implementation of large scrolling lists that render only visible items and a small buffer. Includes TypeScript examples for reusing page elements, limiting scroll updates, and cleaning up event listeners to reduce rendering work.

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• Building lists with thousands of items
• Reducing rendering work during scrolling
• Reusing list elements and cleaning up listeners