Validate Taiwan Business and ID Checksums
Mistyped Taiwan identifiers can cause errors in forms and records. This skill provides local checksum calculations and format checks without database access.
Copy this request to your Agent. It includes the canonical Skill page and manifest.
Review the Skillstore skill "taiwan-id-check" from https://skillstore.io/skills/tahodev-taiwan-id-check.md and its manifest at https://skillstore.io/api/skills/tahodev-taiwan-id-check/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.
Using "taiwan-id-check". Check the checksum of public business number 22099131.
Expected outcome:
Checksum passes. The weighted digit sum is 30, which is divisible by five. This result does not verify company registration.
Using "taiwan-id-check". Check synthetic business number 10000073 and explain the special case.
Expected outcome:
Checksum passes through the seventh-digit exception. The ordinary sum is 14; replacing the seventh-digit contribution with one produces five.
Using "taiwan-id-check". Compare canonical ID test values A123456789 and A123456788.
Expected outcome:
All 13 static findings are false positives involving Markdown backticks or readable multilingual text, not shell substitution or concealed payloads. No evidence found of prompt injection, exfiltration, network access, or destructive operations. A reproduced Unicode normalization bypass contradicts the stated ASCII-only input policy and is recorded as a low-severity semantic finding.
Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.
https://skillstore.io/skills/tahodev-taiwan-id-check/audits/1?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_report[](https://skillstore.io/skills/tahodev-taiwan-id-check?utm_source=security_passport_badge)<a href="https://skillstore.io/skills/tahodev-taiwan-id-check?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/tahodev-taiwan-id-check/security.svg" alt="Skillstore security assessment" loading="lazy"></a><iframe src="https://skillstore.io/embed/skills/tahodev-taiwan-id-check.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>tahodev. (2026). taiwan-id-check security audit report (audit version 1) [Author version unspecified]. Skillstore. https://skillstore.io/skills/tahodev-taiwan-id-check/audits/1@techreport{tahodev-tahodev-taiwan-id-check-2026,
author = {tahodev},
title = {taiwan-id-check security audit report (audit version 1)},
institution = {Skillstore},
year = {2026},
number = {1},
url = {https://skillstore.io/skills/tahodev-taiwan-id-check/audits/1},
note = {Author version unspecified}
}cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "taiwan-id-check security audit report (audit version 1)"
version: "unspecified"
type: report
authors:
- name: "tahodev"
date-released: "2026-10-13"
url: "https://skillstore.io/skills/tahodev-taiwan-id-check/audits/1"
identifiers:
- type: other
value: "skillstore:tahodev-taiwan-id-check:audit:1"
description: "Skillstore immutable audit report identifier"
Check business-number and identity-number validation rules before adding them to a Taiwan registration form.
Identify business-number format and checksum errors in authorized records without treating passing results as proof of registration.
Use documented examples to test malformed inputs, changed check digits, and the seventh-digit business-number exception.
Check the checksum of Taiwan business number 22099131. State whether it passes and clarify that this does not verify company registration.
Compare the canonical test values A123456789 and A123456788. Explain the checksum difference without making claims about identity or document authenticity.
Explain why synthetic business number 10000073 requires the seventh-digit exception. Compare its ordinary weighted sum with the alternative contributions.
Design tests for both validators covering malformed lengths, lowercase letters, non-ASCII characters, residence certificate formats, and 10000073. Identify normalization-related limitations.
Author
tahodevLicense
MIT
Skillstore revision
r1
Version notice
The author did not declare a version.
Ref
2aab20a3878daa05021884e089a7dd7739e08581
Maintenance freshness
10/13/2026
Usage
0 downloads · 0 views
File structure
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