folio-classify-document

folio-classify-document is a skill for Claude Code from alea-institute/folio-claude-plugin. It costs 99 tokens per session (430 once invoked), scanned A, a copy of folio-classify-document, MIT.

A guide for classifying legal documents using FOLIO, a taxonomy of more than 18,000 legal concepts.

In plain words
What is it for?
Use it to classify contracts, court filings, opinions, deeds, briefs, memoranda, and other legal documents.
Why use it?
It helps identify the closest standard category when a document's type is unclear. It also provides the category's definition, identifier, parent category, translations, and references.

Skill for Claude Code

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

Part of the folio plugin — 4 skills, 1 MCP server shipped together

Good fit Use it to classify contracts, court filings, opinions, deeds, briefs, memoranda, and other legal documents.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alea-institute/folio-claude-plugin/folio-classify-document
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.

Any agent
npx skills add alea-institute/folio-claude-plugin --skill folio-classify-document
Clone the repo
git clone --depth 1 https://github.com/alea-institute/folio-claude-plugin

Made for: Claude Code.

Or install folio, the plugin that ships this one along with the rest of its 4 skills, 1 MCP server.

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 folio-classify-document

README.md
[![agentmods](https://agentmods.dev/badge/skills/alea-institute/folio-claude-plugin/folio-classify-document.svg)](https://agentmods.dev/skills/alea-institute/folio-claude-plugin/folio-classify-document)
Your own site
<a href="https://agentmods.dev/skills/alea-institute/folio-claude-plugin/folio-classify-document"><img src="https://agentmods.dev/badge/skills/alea-institute/folio-claude-plugin/folio-classify-document.svg" alt="Measured on agentmods" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 430 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 100% copy Near-identical to another mod 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 $0.00099 $0.00430
Opus 5 $0.00049 $0.00215
Sonnet 5 $0.00020 $0.00086
Haiku 4.5 $0.00010 $0.00043

Measured 7d ago against content hash e5a4d39f8c04, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

folio-classify-document 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 7d 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.

Origin

This is a copy

100% identical to folio-classify-document — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/folio-classify-document/SKILL.md · 34 lines

What it actually says

Classify a legal document against the FOLIO ontology's document_artifacts taxonomy branch.

Workflow

Given a document name or description, follow these steps:

  1. Search for matches: Use folio:search_concepts with the document name or key terms to find candidate document types in FOLIO.

  2. Browse the document taxonomy: If no strong match is found, use folio:get_taxonomy_branch("document_artifacts") to see the top-level document categories (e.g., Contracts, Court Documents, Legislative Documents, etc.).

  3. Drill into the best category: Use folio:get_children(iri) on the most promising top-level category to find the specific document type.

  4. Get full details: Use folio:get_concept(iri) on the best match to retrieve the complete definition, translations, identifiers, and cross-references.

Output Format

Return the classification as:

  • FOLIO Label: The official FOLIO concept name
  • FOLIO IRI: The concept's unique identifier (e.g., https://folio.openlegalstandard.org/...)
  • Definition: The FOLIO definition of this document type
  • Parent Category: The parent concept in the taxonomy hierarchy
  • Confidence: high / medium / low
  • Reasoning: Brief explanation of why this classification was chosen

If multiple classifications could apply, list the primary match first, then alternatives with their confidence levels.

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. 7d ago First seen · 34 lines · 99 tokens per session scan A e5a4d39f8c04

Subscribe to this mod's changes

folio-classify-document is a skill published in the GitHub repository alea-institute/folio-claude-plugin (2 stars, last pushed 5mo ago), licensed MIT. It adds 99 tokens to every session and 430 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to folio-classify-document, differing in 0 lines, and is treated as a copy.

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