nl-tax-knowledge SKILL.md skillA
nl-tax-knowledge from cyanxxy/nl-tax-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cyanxxy/nl-tax-agent-skills/nl-tax-knowledge@git:20261103.7f93730Pins git:20261103.7f93730 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cyanxxy/nl-tax-agent-skills
- Path
plugins/nl-tax-agent-skills/skills/nl-tax-knowledge/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261103.7f93730, committed Nov 3, 2026
- First version recorded
- Sep 22, 2026
- Size
- 7,519 bytes
- Repository stars
- 10
- License
- Apache-2.0
Answers questions about how Dutch tax rules work in 2025 and 2026 from bundled, source-cited notes: Box 1 (wages, eigen woning, hypotheekrenteaftrek), Box 2 (aanmerkelijk belang), Box 3 (heffingsvrij vermogen, werkelijk rendement), heffingskortingen, fiscaal partner, voorlopige aanslag, ZZP and winst uit onderneming, btw/VAT, KOR, ICP, OSS, and emigration or nonresident rules. Names the year and official source, flags notes still awaiting review, and writes no files. Use when the user asks…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# NL Tax Knowledge Answer Dutch individual income-tax and VAT (btw) rule questions from the source-cited notes bundled with this plugin. The income-tax notes for the annual 2025 return and the voorlopige aanslag 2026 are reviewed. The VAT, VAT adjustment, ICP, OSS/IOSS, international (M/C) and annual 2026 notes are draft notes with review status `needs_review`. This skill is a read-only lookup that writes nothing: it never creates or updates `workspace/` files, workpacks, field maps, or checklists. ## Always-on authenticated-portal boundary Never use a browser, Claude in Chrome, computer use, screen interaction, a connector, or another tool to open or operate an authenticated tax portal; never log in, enter or change values, click controls, sign, send, submit, retrieve private account data, or ask for, accept, store, or process credentials or sessions. Those actions remain human-only even with taxpayer permission or available credentials. Describe every portal step with an explicit human subject, such as "You (the taxpayer)". ## Scope - Covered (reviewed notes): the annual income-tax return for 2025 and the …
Read the whole file at its exact version.
How to install
mdr add cyanxxy/nl-tax-agent-skills/nl-tax-knowledge@sha256:85f3e26bd1f44f79The line at the top of this page pins the label git:20261103.7f93730, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_krswzg46lmeqimy2)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 22, 2026 and Nov 3, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261103.7f93730 latest | 2026-11-03 | 7f93730 | 7,519 B | A | view · diff |
| git:20261103.5b1aa4c | 2026-11-03 | 5b1aa4c | 7,531 B | A | view · diff |
| git:20261004.2890a39 | 2026-10-04 | 2890a39 | 6,921 B | A | view · diff |
| git:20260926.2774daf | 2026-09-26 | 2774daf | 4,695 B | A | view · diff |
| git:20260922.510cab3 | 2026-09-22 | 510cab3 | 4,709 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7519 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
cyanxxy/nl-tax-agent-skills · 10 stars · license Apache-2.0 · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_krswzg46lmeqimy2 GET https://markdownregistry.com/api/v1/resolve?ref=cyanxxy/nl-tax-agent-skills/nl-tax-knowledge GET https://markdownregistry.com/api/v1/blob/85f3e26bd1f44f79bd6d8a3b36f61eec7482e0bd0b57b5b530a33c661077a0a3
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.