Localecheck — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Localecheck (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
Locale-correctness tools for AI agents. Agents are systematically wrong about everyday non-US data — they read 03/04 as March 4 in the UK, apply today's VAT rate to a historical invoice, format €1,234.50 for a German reader, and miss bank holidays in delivery dates. localecheck gives them verified answers and flags impossible inputs instead of guessing.
Coverage: UK + USA (v1), expanding. Free, no API key.
| Package | Install | Use | |
|---|---|---|---|
| TypeScript (primary) | packages/localecheck-ts | npx -y localecheck (live on npm) | MCP server and importable library |
| Python | packages/localecheck-python | from source (PyPI release coming soon) | MCP server, importable library, REST API |
Both wrap the same authoritative libraries (libphonenumber, CLDR/Intl, date-holidays) and share the same hand-curated tax data.
parse_date · validate_phone · format_currency · tax_rate (VAT/sales-tax by date) · is_holiday / next_holiday · parse_address
{ "mcpServers": { "localecheck": { "command": "npx", "args": ["-y", "localecheck"] } } }Then ask naturally — the agent picks the tool: "A UK invoice dated 1 June 2009 — what VAT rate?" → 15%.
packages/localecheck-ts — primary TypeScript package (MCP + library)packages/localecheck-python — Python package + FastAPI REST APIeval/ — benchmark harness: how often raw LLMs get this wrongbenchmark.html — shareable results page · BUSINESS_MODEL.md — strategy ·PUBLISH.md — release steps · LOCAL_TEST.md — test before publishing
UK VAT history is reliable for the modern era (standard rate). US state sales-tax values are 2025 state base rates (local taxes add on top) — verify against an authoritative feed before live invoicing. Addresses parse + extract a valid postcode/ZIP but don't verify deliverability.
Code: Apache-2.0. Curated tax data: see BUSINESS_MODEL.md.
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.