Bizdays — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Bizdays (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.
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<img src="docs/logo.svg" width="96" height="96" alt="Qiniso" />
Verified business-day math for AI agents — holidays + per-country weekends, not guesses.
Verified, trustworthy data tools for AI agents. "Qiniso" means "truth" in Zulu.
Website · npm · MCP endpoint · MCP Registry
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LLMs answer "what date is 5 business days after Dec 22nd in the UK?", "how many working days are in this month?", and "is Friday a working day in Saudi Arabia?" confidently and often wrongly — they miscount, forget public holidays, and assume every country's weekend is Saturday/Sunday. bizdays gives an agent the deterministic answer from real public-holiday calendars and per-country weekend rules, showing the weekend rule and the exact holidays it skipped.
Two things break naive business-day math, and bizdays fixes both: weekends aren't Sat/Sun everywhere (Fri/Sat in Saudi Arabia, Egypt & Israel; Fri in Iran; Sun in India; Sat/Sun in the UAE since 2022), and "holiday" must mean a real day off — off-the-shelf data counts observances like Valentine's Day and Christmas Eve, which are not days off.
Counting the working days in a month, a frontier LLM with no tools is wrong 63% of the time, cold — and 23% across business-day questions overall. bizdays: 0%.
Settings → Connectors → Add custom connector, and paste — no login, no key:
https://bizdays.qinisolabs.workers.dev/mcpStateless, reads no user data, requires no secrets. Prefer to run it locally over stdio? Add { "command": "npx", "args": ["-y", "@qinisolabs/bizdays"] } under mcpServers in your client config.
Every tool is also a typed function — no MCP required:
npm i @qinisolabs/bizdaysimport { addBusinessDays, countBusinessDays, isBusinessDay } from "@qinisolabs/bizdays";
addBusinessDays("2025-12-22", 5, "GB").result; // "2025-12-31" (skips Christmas + Boxing Day)
countBusinessDays("2025-12-01", "2025-12-31", "US"); // { businessDays: 22, ... }
isBusinessDay("2025-06-13", "SA").isBusinessDay; // false — Friday is weekend in Saudi Arabia
isBusinessDay("2025-02-14", "US").isBusinessDay; // true — Valentine's Day is not a public holidayEvery function returns a rich result: the answer, the weekday, exactly which weekends and named holidays were skipped, the weekend rule and its source, and a confidence flag.
| Tool | What it answers |
|---|---|
| add_business_days | What date is N working days from a start date? (N may be negative) |
| count_business_days | How many working days between two dates? (endpoints inclusive by default) |
| is_business_day | Is this date a working day? If not, why (weekend / public holiday with its name)? |
| next_business_day | First working day strictly after a date |
| previous_business_day | Last working day strictly before a date |
| country_rule | The weekend rule + its source, whether holidays apply, and a confidence flag |
Public holidays for 206 countries (and subdivisions) come from date-holidays, filtered to type: "public". Weekends come from Unicode CLDR via the runtime Intl API, plus a curated data/weekend-overrides.json correction layer (e.g. Bangladesh Fri/Sat, Nepal Sat-only) — the maintained data is the moat.
extraHolidays.unverified. Where no holiday calendar exists (e.g. Qatar, Kuwait, Oman), the correct weekend still applies and the response says so (holidaysApplied: false).YYYY-MM-DD in UTC.A single TypeScript package exposing one MCP server over two transports — stdio (local / npx) and a Cloudflare Worker (the hosted edge endpoint) — both driven by the same core.ts tool definitions, which also power the importable library.
npm install
npm run build
npm testThis tool runs locally on your machine and is built not to collect, store, or transmit your data — no analytics, no telemetry, no account. All reference data is bundled — no network calls, and nothing leaves your device. Full policy: <https://qinisolabs.github.io/privacy.html>.
Apache-2.0. Bundled holiday data is from date-holidays (ISC AND CC-BY-3.0); see NOTICE.
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.