UN Charter 1945

Name: UN Charter 1945
Author: io.arxo

MCP serverMCP

UN Charter (1945, as amended) as an executable model with worked cases; not UN-affiliated

by io.arxorepository ↗homepage ↗v0.1.8Apache-2.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability29/30 checks ok

when	check	result	http	latency	detail
2 h ago	mcp initialize	ok	200	72 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
8 h ago	mcp initialize	ok	200	75 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
15 h ago	mcp initialize	ok	200	46 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
22 h ago	mcp initialize	ok	200	76 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
29 h ago	mcp initialize	ok	200	63 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
2 d ago	mcp initialize	failed	—	—	timeout
2 d ago	mcp initialize	ok	200	64 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
2 d ago	mcp initialize	ok	200	65 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
3 d ago	mcp initialize	ok	200	56 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools
3 d ago	mcp initialize	ok	200	62 ms	server law-dsl-charter 0.1.0 · protocol 2025-06-18 · 20 tools

Tools observed via MCP handshake

law_search — A semantic SEARCH over formalised law: a question or a notion in your own words → candidates with addresses — predicates with signatures, rules, article fragmen
law_passport — Passport of an exact release: purpose, interface, boundaries, checks and performance. The reports section holds the history of measurements, failures included.
law_answer_capabilities — A machine-readable matrix of the Lens producers that are actually installed, of replay/projection checks, profiles, limits and the contract tests that confirm t
law_capture_answer — Run a registered producer and obtain producerControl/0.2 for a later verifiable preparation of a Lens. The producer is chosen only from the shipped registry.
law_prepare_answer — At the explicit request of the user, repeat between 1 and 12 earlier law_ask or law_process_run calls (the course of a case, DECISION-0160), compare their repla
law_publish_answer — Publish a prepared document. Repeating it with the same preparationId idempotently returns the same URL and the same separate revocation secret.
law_revoke_answer — Revoke a published document using its separate secret. The public id alone grants no control; revocation closes the HTML page, the API and the download.
law_packages — The catalogue of formalised law: instruments, predicates with signatures, the boundaries of coverage. This is where the NAMES of predicates come from — they mus
law_ask — Put a question to formalised law. When the answer is "not established" it carries whyNot — the engine's why_not report §185: the candidate rules and the state o
law_screen — Build a necessary condition — a superset — for the preliminary selection of rows from an external source (DECISION-0120). This is NOT a legal answer and NOT SQL
law_rules — The rules of formalised law put into words: exactly how a predicate is derived (premises, source articles). Call this BEFORE supplying facts to law_ask — the ru
law_explain — Unfold the proof of a law_ask answer into a chain "rule ← premises → conclusion". The compact input: question (the original law_ask arguments, truth/collect), r
law_case_ask — The ask operation §168.4 (DECISION-0165, DECISION-0399): run a registered case of a case package over its pinned dependencies and return the canonical evaluatio
law_sources — Sources: by default short excerpts (view=summary), 5 texts per page, with the address of the full text in fragments[].full. Either package or fragment is requir
law_argue — How robust a conclusion is: the map of the dispute under the argumentation profile §274 (DECISION-0039). The answer falls into four classes: SKEPTICALLY_ACCEPTE
law_process — Which stages the procedure established by an instrument consists of, and whether it carries a structural defect (O-5, DECISION-0052). The stages, the transition
law_process_run — How a particular case will run, step by step (O-5, DECISION-0052): a log of {date, attempt?, facts?} is executed frame by frame, and the law of each frame is th
law_editions — The axis of editions (O-2): what changed in an instrument between two dates of the law — the state of the editions, the dating of the norms and the semantic dif
law_query — A deterministic LawQL query over the CLIR of a formalization: a question about the model of the act itself, not about a case. Relations: nodes(id,kind,package,p
law_report — A REPORT of a divergence between the formalisation and the source: the answer contradicts the pinned text, a norm of the source is not expressed by a rule, a §2

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.arxo/charter

first seen 9 d ago · fetched 2 d agoopen ↗

npm registry@arxo/mcp-charter

first seen 14 d ago · fetched 6 h agoopen ↗

Field history (12 recent events)

9 d ago · declared · repoUrl → "https://github.com/arxohq/arxo-charter-1945"
9 d ago · declared · summary → "UN Charter (1945, as amended) as an executable model with worked cases; not UN-affiliated"
9 d ago · declared · name → "UN Charter 1945"
9 d ago · declared · homepageUrl → "https://charter.law.arxo.io/"
9 d ago · declared · publisherName → "io.arxo"
9 d ago · declared · description → "UN Charter (1945, as amended) as an executable model with worked cases; not UN-affiliated"
9 d ago · declared · version → "0.1.8"
9 d ago · observed · packageFacts → {"name":"@arxo/mcp-charter","registry":"npm","publishedAt":"2026-10-14T21:08:52.417Z","latestVersion":"0.1.8","weeklyDow
13 d ago · observed · packageFacts → {"name":"@arxo/mcp-charter","registry":"npm","publishedAt":"2026-10-10T14:11:35.375Z","latestVersion":"0.1.7","weeklyDow
13 d ago · declared · version → "0.1.7"
14 d ago · declared · summary → "Arxo Law MCP server for the un.charter/1945 slice, local over stdio"
14 d ago · observed · packageFacts → {"name":"@arxo/mcp-charter","registry":"npm","publishedAt":"2026-10-10T05:26:45.153Z","latestVersion":"0.1.6","weeklyDow

UN Charter 1945

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Capabilities

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