Claude-skill-registry leychile

Queries Chilean legislation from the Biblioteca del Congreso Nacional using SPARQL and Linked Data. Use when searching for Chilean laws, decrees, regulations, congressional information, or when user mentions specific Chilean legal codes.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/leychile" ~/.claude/skills/majiayu000-claude-skill-registry-leychile && rm -rf "$T"

manifest: skills/data/leychile/SKILL.md

Ley Chile API Skill

Use this skill to query Chilean legislation from the Biblioteca del Congreso Nacional (BCN).

Overview

This is a free, public API - no authentication required. It provides access to Chilean laws, decrees, regulations, legal norms, and congressional information via Linked Open Data.

API Methods

1. SPARQL Endpoint (Primary)

Main data access method at

https://datos.bcn.cl/sparql

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=YOUR_SPARQL_QUERY" \
  -H "Accept: application/json" \
  --max-time 30

2. Resource URIs (Direct Data Access)

Access individual resources in JSON or RDF format:

# JSON format
curl -sL "https://datos.bcn.cl/recurso/cl/ley/330/datos.json"

# RDF format
curl -sL "https://datos.bcn.cl/recurso/cl/ley/330/datos.rdf"

URI Pattern:

https://datos.bcn.cl/recurso/cl/{type}/{path}/datos.{format}

Types include:

ley

dfl

dto

res

, etc.

SPARQL Query Examples

Query Norms (Laws, Decrees, etc.)

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=
PREFIX bcnnorms: <http://datos.bcn.cl/ontologies/bcn-norms#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>

SELECT ?norma ?label ?title ?leychileCode
WHERE {
  ?norma a bcnnorms:Norm .
  OPTIONAL { ?norma rdfs:label ?label }
  OPTIONAL { ?norma dc:title ?title }
  OPTIONAL { ?norma bcnnorms:leychileCode ?leychileCode }
}
LIMIT 10" \
  -H "Accept: application/json"

Find Law by idNorma (LeyChile Code)

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=
PREFIX bcnnorms: <http://datos.bcn.cl/ontologies/bcn-norms#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?norma ?label
WHERE {
  ?norma a bcnnorms:Norm .
  ?norma bcnnorms:leychileCode ?code .
  FILTER(?code = 172986)
  OPTIONAL { ?norma rdfs:label ?label }
}
LIMIT 5" \
  -H "Accept: application/json"

Search Law Projects (Bills)

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=
PREFIX bcn: <http://datos.bcn.cl/ontologies/bcn-resources#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?proyecto ?label
WHERE {
  ?proyecto a bcn:ProyectoDeLey .
  OPTIONAL { ?proyecto rdfs:label ?label }
}
LIMIT 10" \
  -H "Accept: application/json"

Get Parliamentary Sessions

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=
PREFIX congress: <http://datos.bcn.cl/ontologies/bcn-congress#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?sesion ?label
WHERE {
  ?sesion a congress:SesionParlamentaria .
  OPTIONAL { ?sesion rdfs:label ?label }
}
LIMIT 10" \
  -H "Accept: application/json"

List Available Entity Types

curl -s 'https://datos.bcn.cl/sparql' \
  --data-urlencode "query=SELECT DISTINCT ?type WHERE { ?s a ?type . FILTER(CONTAINS(STR(?type), 'bcn')) } LIMIT 100" \
  -H "Accept: application/json"

Ontologies/Namespaces

Prefix	Namespace	Description
bcn-norms	`http://datos.bcn.cl/ontologies/bcn-norms#`	Norms (Norm, leychileCode, publishDate)
bcn-resources	`http://datos.bcn.cl/ontologies/bcn-resources#`	Legislative resources (ProyectoDeLey, Articulo)
bcn-congress	`http://datos.bcn.cl/ontologies/bcn-congress#`	Congressional entities (SesionParlamentaria)
bcn-biographies	`http://datos.bcn.cl/ontologies/bcn-biographies#`	Biographies (Senador, Diputado)
dc	`http://purl.org/dc/elements/1.1/`	Dublin Core (title, language)
rdfs	`http://www.w3.org/2000/01/rdf-schema#`	RDF Schema (label)

Key Properties (bcn-norms)

Property	Description
`bcnnorms:leychileCode`	The idNorma used in LeyChile URLs
`bcnnorms:publishDate`	Publication date
`bcnnorms:promulgationDate`	Promulgation date
`bcnnorms:hasNumber`	Law/decree number
`bcnnorms:createdBy`	Issuing ministry/organism
`bcnnorms:hasHtmlDocument`	Link to LeyChile HTML page

Common Law IDs (leychileCode / idNorma)

Law	idNorma	URI Path
Constitucion	242302	-
Codigo Civil	172986	`/cl/dfl/ministerio-de-justicia/2000-05-30/1`
Codigo Penal	1984	-
Codigo del Trabajo	207436	-
Ley de Proteccion de Datos (19.628)	141599	-

Web Navigation (Human Browsing)

For viewing laws in a browser:

https://www.bcn.cl/leychile/navegar?idNorma={ID_NORMA}

Historical version:

https://www.bcn.cl/leychile/navegar?idNorma={ID_NORMA}&idVersion={YYYY-MM-DD}

Note: These pages are JavaScript-rendered. Use SPARQL or Resource URIs for programmatic access.

Performance Notes

Use
```
--max-time 30
```
with curl for safety
Queries for
```
ProyectoDeLey
```
and
```
SesionParlamentaria
```
are fast
Queries with
```
FILTER
```
on text can be slow
Use
```
STR(?variable)
```
instead of
```
LCASE(?variable)
```
in FILTER to avoid type errors

Response Format

SPARQL JSON Response

{
  "head": { "vars": ["norma", "label"] },
  "results": {
    "bindings": [
      {
        "norma": { "type": "uri", "value": "http://datos.bcn.cl/recurso/..." },
        "label": { "type": "literal", "value": "Ley 330" }
      }
    ]
  }
}

Resource URI JSON Response

{
  "http://datos.bcn.cl/recurso/cl/ley/.../330/es@1896-01-29": {
    "http://www.w3.org/1999/02/22-rdf-syntax-ns#type": [...],
    "http://www.w3.org/2000/01/rdf-schema#label": [...],
    "http://datos.bcn.cl/ontologies/bcn-norms#leychileCode": [
      { "type": "literal", "value": 22181 }
    ]
  }
}

Deprecated/Unavailable APIs

Ley Facil API (401 Unauthorized as of Dec 2025)

# NO LONGER WORKS
curl -s "https://www.bcn.cl/leyfacil/recurso/trabajo"

XML Export API (401 Unauthorized)

# NO LONGER WORKS
curl -s "https://www.leychile.cl/Consulta/obtxml?opt=7&idNorma=172986"

References

Open Data Portal: https://datos.bcn.cl/es/
SPARQL Endpoint: https://datos.bcn.cl/sparql
URI Documentation: https://datos.bcn.cl/es/informacion/documentacion/tipos-de-uri
SPARQL Examples: https://datos.bcn.cl/es/informacion/documentacion/consultas-sparql
Main Portal: https://www.bcn.cl/leychile/
API Spec Page: https://www.bcn.cl/leychile/consulta/legislacion_abierta_web_service