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TheWatcher01TheWatcher01/skills/.claude/skills/data-contract/SKILL.md

data-contract

Skill0 starsChanged 7 months agoMITView on GitHub

Genere ou valide un contrat de qualite data (Data Quality Contract) pour une source de donnees. Utiliser quand on ajoute une nouvelle source, modifie un schema, ou verifie la conformite des contrats existants.

Files
SKILL.md

/data-contract — Gestion des Contrats Data

Objectif

Creer ou valider un Data Quality Contract (DQC) pour une source de donnees, definissant les SLOs, le schema attendu, et les regles de validation.

Arguments

  • $ARGUMENTS : nom de la source (ex: "sirene", "rna", "bodacc") ou "validate" pour verifier tous les contrats

Workflow — Mode creation

Phase 1 — Analyse de la source

  1. Identifier la source dans src/config/sources.ts
  2. Lire le crawler/importeur correspondant
  3. Analyser le schema des donnees ingerees (Prisma + Zod)
  4. Determiner la licence et les obligations legales

Phase 2 — Generation du contrat

Generer un fichier YAML au format ODCS v3 :

# data-contracts/[source-name]-dqc-v1.0.yml
contract:
  name: "[source-name]-dqc"
  version: "1.0"
  description: "Data Quality Contract pour [source]"
  owner: "datalake-souverain"

source:
  name: "[source-name]"
  api_url: "[url]"
  license: "[etalab-2.0|ODbL-1.0]"
  attribution: "[organisation]"
  cadence: "[daily|weekly|monthly]"
  rate_limit: "[N/min]"
  personal_data: [true|false]

schema:
  type: "object"
  properties:
    siren: { type: "string", pattern: "^\\d{9}$" }
    # ... champs specifiques

quality:
  tier: "[Gold|Silver|Bronze]"
  slos:
    validity: { min: 99.5 }
    completeness: { min: 97, critical_fields: ["siren", "legalName"] }
    uniqueness: { min: 99.5, key: "siren" }
    freshness: { max_age_days: 7 }
    traceability: { min: 100 }

validation:
  zod_schema: "src/core/entities/[schema].ts"
  test_file: "tests/dqc/[source-name].test.ts"

Phase 3 — Validation

  • Verifier que le schema Zod couvre tous les champs du contrat
  • Verifier que le crawler respecte le rate limit declare
  • Verifier que les SLOs sont coherents avec le tier

Workflow — Mode validation

  1. Lister tous les contrats dans src/config/data-contracts/
  2. Pour chaque contrat :
    • Verifier que le crawler existe et est actif
    • Verifier la coherence schema Prisma ↔ Zod ↔ contrat
    • Signaler les contrats obsoletes ou incomplets
  3. Generer un rapport de conformite

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