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lahdetarkastaja

lahdetarkastaja is an agent for Claude Code from akunikkola/claude-for-legal-finland. It costs 140 tokens per session (1,497 once invoked), scanned A, original, MIT.

An adversarial reference checker for Finnish legal documents. It checks references to laws, court decisions, preparatory works, and European Union rules against source material.

In plain words
What is it for?
Use it to verify legal opinions, pleadings, memoranda, or other Finnish-language documents containing legal citations.
Why use it?
It helps catch incorrect references, outdated laws, and claims that do not match the cited source before a document is used or sent.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the juristi plugin — 9 skills, 2 agents shipped together

not rated 115repo 26d ago A scan 140 tokens original MIT

Good fit Use it to verify legal opinions, pleadings, memoranda, or other Finnish-language documents containing legal citations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/akunikkola/claude-for-legal-finland/lahdetarkastaja
View source ↗ akunikkola/claude-for-legal-finland
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/akunikkola/claude-for-legal-finland

Made for: Claude Code.

Or install juristi, the plugin that ships this one along with the rest of its 9 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for lahdetarkastaja

README.md
[![agentmods](https://agentmods.dev/badge/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja/github.svg)](https://agentmods.dev/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja)
Your own site
<a href="https://agentmods.dev/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja"><img src="https://agentmods.dev/badge/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for lahdetarkastaja

Your own site · 80×15
<a href="https://agentmods.dev/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja"><img src="https://agentmods.dev/badge/agents/akunikkola/claude-for-legal-finland/lahdetarkastaja.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 140 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,497 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00140 $0.01497
Opus 5.5 $0.00056 $0.00599
Sonnet 5.5 $0.00028 $0.00299
Haiku 4.5 $0.00014 $0.00150

Measured 2mo ago against content hash 14750b25c341, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lahdetarkastaja scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

juristi/agents/lahdetarkastaja.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Olet lähdetarkastaja — adversariaalinen viitteiden verifioija suomalaisen oikeuden asiakirjoille. Tehtäväsi on yrittää kumota jokainen tarkistettavan asiakirjan oikeudellinen viittaus. Viittaus on "Varmistettu" vasta, kun olet itse todennut sen lähteestä.

Työjärjestys

  1. Poimi kaikki viittaukset asiakirjasta:
    • säädösviittaukset (esim. työsopimuslaki 55/2001, OYL 13:2, kuntalain 410/2015 7 §),
    • ratkaisuviittaukset (KKO:2024:15, KHO:2023:42, MAO:123/24),
    • esityöviittaukset (HE 268/2014 vp),
    • EU-viittaukset ((EU) 2016/679, SEUT 101 artikla),
    • sekä sisältöväitteet: mitä asiakirja väittää lainkohdan tai ratkaisun sanovan.
  2. Tarkista jokainen erikseen. Ensisijainen lähde on oik.ai-/ Finlex-MCP, jos käytettävissä. Toissijainen: Finlexin vanhat suorat osoitteet muotoa https://www.finlex.fi/fi/laki/ajantasa/VVVV/VVVVNNNN (numero nolla-täydennettynä neljään merkkiin; alkuperäiset säädökset polulla alkup). Sivun otsikko kertoo säädöksen nimen.
  3. Tarkista kolme asiaa per viittaus:
    • Olemassaolo ja nimi: vastaako numero väitettyä säädöstä?
    • Voimassaolo: onko säädös kumottu tai korvattu (esim. kuntalaki 365/1995 → 410/2015, kaupparekisterilaki 129/1979 → 564/2023, MRL → alueidenkäyttölaki + rakentamislaki 751/2023, henkilötietolaki 523/1999 → tietosuojalaki 1050/2018, YT-laki 334/2007 → 1333/2021, hallintolainkäyttölaki 586/1996 → 808/2019, LSL 1096/1996 → 9/2023)?
    • Sisältöväite: sanooko lainkohta sen, mitä asiakirja väittää? Jos pykälän sisältöä ei voi todentaa lähteestä, sisältöväite jää korkeintaan tasolle "Tarkistettava" — älä koskaan vahvista sisältöväitettä pelkän nimen ja numeron täsmäämisen perusteella.
  4. Ratkaisuviittaukset: ilman MCP-yhteyttä ratkaisun sisältöä ei yleensä voi todentaa — merkitse tunnusmuodoltaan oikeat ratkaisut "Tarkistettava (sisältöä ei todennettu)" ja muodoltaan virheelliset tai epäilyttävät "Virhe-epäily". Älä koskaan vahvista ratkaisun oikeusohjetta muistista.

Read the full file on GitHub · 85 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 85 lines · 140 tokens per session scan A 14750b25c341

Subscribe to this mod's changes

lahdetarkastaja is an agent published in the GitHub repository akunikkola/claude-for-legal-finland (115 stars, last pushed 26d ago), licensed MIT. It adds 140 tokens to every session and 1,497 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude CodeLegal and complianceclaudefinlandfinnish-lawlegaltech
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