Hong Kong Law MCP

A stateless Model Context Protocol server for Hong Kong legal research, backed by official Hong Kong e-Legislation (HKeL) open-data manifests.

This is the Hong Kong foundation for a planned multi-jurisdiction service covering Hong Kong, Singapore, and Malaysia.

Current tools

The v0.1 core exposes four tools:

• analyze_legal_intent — classifies a Hong Kong legal-research request and highlights source/high-stakes cautions without giving a legal conclusion.
• search_hk_laws — searches the official current HKeL manifest by chapter number or title.
• get_hk_law — returns current chapter metadata, status, version date, official HKeL URL, and machine-readable source provenance.
• get_hk_source_status — reports current official HKeL manifest timestamps for English and Traditional Chinese.

Source policy

Primary source: Hong Kong Department of Justice, Hong Kong e-Legislation (HKeL).

Current manifests:

• English: https://resource.data.one.gov.hk/doj/data/hkel_list_c_all_en.json
• Traditional Chinese: https://resource.data.one.gov.hk/doj/data/hkel_list_c_all_zh-Hant.json
• Simplified Chinese: https://resource.data.one.gov.hk/doj/data/hkel_list_c_all_zh-Hans.json

Tool responses preserve official HKeL URLs, current version dates, status information, source filenames, and available SHA-256 provenance.

Legal-status distinction

Machine-readable data and HTML are used for research and retrieval. Where legal-status verification matters, use the official HKeL page and verified PDF copy carrying the official verification mark.

Simplified Chinese

HKeL states that its Simplified Chinese text is software-converted from Traditional Chinese and is for information only. If there is inconsistency or ambiguity, Traditional Chinese prevails. The MCP surfaces this warning whenever zh-Hans is requested.

Architecture

The current core is deliberately stateless: MCP clients call a Streamable HTTP endpoint, and the Worker retrieves current metadata from official HKeL manifests. Full-text provision indexing and point-in-time legislation can be added as separate persistence adapters without changing the public jurisdiction interface.

Local validation

Install dependencies and run:

npm run typecheck
npm test

Cloudflare/Wrangler deployment configuration is intentionally kept separate from this initial application-code PR.

Roadmap

HK v0.2

• Add full-text provision search/read from official HKeL machine-readable packages.
• Add point-in-time legislation and past-version retrieval.
• Add judgment search/read using authoritative Judiciary sources.
• Add amendment and legislative-history tools.
• Add citation and version-fidelity evals.
• Add production rate limiting and authentication where appropriate.

Singapore and Malaysia

Keep one public MCP interface with jurisdiction-specific adapters while preserving each jurisdiction's authoritative-source, commencement, versioning, citation, and court-hierarchy semantics.

Disclaimer

Research assistance only; not legal advice. Verify source text, version date, commencement/status, and any verified-copy requirements before relying on a result.