{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "sources.schema.json",
  "title": "Source registry",
  "description": "The fetch allowlist for this project's research gnome (EPIC2-04, platform ADR-0025). Nothing off this registry is ever fetched; adding a source is a one-file PR against this registry. Reference implementation of the studio source-registry convention (platform docs/source-registry.md).",
  "type": "object",
  "required": ["version", "sources"],
  "additionalProperties": false,
  "properties": {
    "version": { "const": 1 },
    "defaults": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "cadence": { "$ref": "#/$defs/cadence" },
        "rate_limit_s": { "type": "integer", "minimum": 0 },
        "max_items_per_fetch": { "type": "integer", "minimum": 1 }
      }
    },
    "sources": {
      "type": "array",
      "items": { "$ref": "#/$defs/source" }
    }
  },
  "$defs": {
    "cadence": { "enum": ["daily", "weekly", "monthly"] },
    "source": {
      "type": "object",
      "required": ["id", "type", "url", "cadence", "parser", "publisher", "status", "robots", "added"],
      "additionalProperties": false,
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-z0-9][a-z0-9-]{1,62}[a-z0-9]$",
          "description": "Stable slug; scratch files and seen-state key off it."
        },
        "type": {
          "enum": ["rss", "html-page", "filing-index"],
          "description": "What the source is: a syndication feed, a page whose links/content change, or a machine-readable index of filings/articles."
        },
        "url": {
          "type": "string",
          "pattern": "^https://",
          "description": "The exact URL the fetch layer requests. The registry is the allowlist — the fetcher requests this URL (plus the host's robots.txt) and nothing else."
        },
        "cadence": { "$ref": "#/$defs/cadence" },
        "parser": {
          "enum": ["rss", "news-sitemap", "link-list"],
          "description": "How the fetch layer itemizes the response (rss covers RSS 2.0 and Atom)."
        },
        "publisher": {
          "type": "string",
          "description": "Publisher name as it should appear on signals extracted from this source."
        },
        "scope": {
          "type": "string",
          "description": "What this source covers (region, beat) — for humans reviewing the registry."
        },
        "status": {
          "enum": ["active", "manual", "retired"],
          "description": "active = fetched on schedule; manual = never fetched (robots/ToS or no machine-readable surface — material arrives via research issues); retired = kept for provenance, never fetched."
        },
        "robots": {
          "type": "object",
          "required": ["checked", "notes"],
          "additionalProperties": false,
          "properties": {
            "checked": { "type": "string", "format": "date", "description": "When robots.txt/ToS were last reviewed." },
            "notes": { "type": "string", "description": "robots/ToS findings and the compatibility judgment; for manual sources, why they must stay manual." }
          }
        },
        "rate_limit_s": { "type": "integer", "minimum": 0, "description": "Per-host politeness delay; honor any published Crawl-delay." },
        "max_items": { "type": "integer", "minimum": 1 },
        "added": { "type": "string", "format": "date" },
        "notes": { "type": "string" }
      }
    }
  }
}