{
  "openapi": "3.0.1",
  "info": {
    "title": "Sitemap URL Delta Monitor",
    "description": "Monitor public sitemap.xml files for new URLs, removed URLs, lastmod changes, and clean stateful deltas for SEO, RAG indexing, and content operations.",
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  "components": {
    "schemas": {
      "inputSchema": {
        "type": "object",
        "required": [
          "sitemapUrls"
        ],
        "properties": {
          "sitemapUrls": {
            "title": "Sitemap URLs (or root domains if discoverSitemaps is true)",
            "type": "array",
            "description": "Public sitemap.xml or sitemap index URLs. When discoverSitemaps is enabled, root domains (e.g. https://example.com) are also accepted — the actor will fetch /robots.txt and enqueue Sitemap entries from it.",
            "items": {
              "type": "string"
            }
          },
          "discoverSitemaps": {
            "title": "Discover sitemaps from robots.txt",
            "type": "boolean",
            "description": "If true, fetch each start URL's robots.txt and enqueue any Sitemap entries found there. Only works on sites that publish a robots.txt.",
            "default": false
          },
          "urlFilterRegex": {
            "title": "URL filter regex",
            "type": "string",
            "description": "Optional JavaScript-compatible regex applied to discovered URLs. Matched URLs are included in the output and the persisted snapshot; non-matches are ignored. Applies to final URLs, not intermediate sitemaps.",
            "default": ""
          },
          "changeTypes": {
            "title": "Change types to emit",
            "type": "array",
            "description": "Which change types to emit as dataset rows. Defaults to ['new_url', 'updated_url', 'removed_url'] (delta-only). Add 'unchanged' to also include rows that did not change since the previous snapshot.",
            "default": [
              "new_url",
              "updated_url",
              "removed_url"
            ],
            "items": {
              "type": "string"
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          },
          "addRemovedUrlsToKvs": {
            "title": "Add removed URLs to key-value store",
            "type": "boolean",
            "description": "When true, also write a REMOVED-URLS key to the state key-value store with the full list of URLs that disappeared since the last snapshot, in addition to emitting 'removed_url' rows in the dataset.",
            "default": false
          },
          "previousItems": {
            "title": "Previous items",
            "type": "array",
            "description": "Optional previous sitemap URL rows from an earlier run (overrides persisted state if provided).",
            "default": []
          },
          "onlyChanged": {
            "title": "Only output changed URLs (legacy alias for changeTypes)",
            "type": "boolean",
            "description": "If true (default), only emit rows whose status is not 'unchanged'. Equivalent to changeTypes excluding 'unchanged'.",
            "default": true
          },
          "persistState": {
            "title": "Persist state between runs",
            "type": "boolean",
            "description": "Store the latest sitemap snapshot in a named key-value store.",
            "default": true
          },
          "stateStoreName": {
            "title": "State store name",
            "type": "string",
            "description": "Named key-value store used for snapshots when persistState is enabled.",
            "default": "sitemap-delta-monitor-state"
          },
          "stateKey": {
            "title": "State key override",
            "type": "string",
            "description": "Optional snapshot key. Leave empty to derive from input sitemap URLs.",
            "default": ""
          },
          "maxSitemapUrls": {
            "title": "Max nested sitemaps",
            "minimum": 1,
            "maximum": 200,
            "type": "integer",
            "description": "Maximum nested sitemap URLs to fetch from sitemap indexes (and from robots.txt discovery).",
            "default": 25
          },
          "maxUrls": {
            "title": "Max URLs",
            "minimum": 1,
            "maximum": 50000,
            "type": "integer",
            "description": "Maximum URLs to track per run.",
            "default": 5000
          },
          "requestTimeoutMs": {
            "title": "Request timeout (ms)",
            "minimum": 5000,
            "maximum": 120000,
            "type": "integer",
            "description": "Per-request timeout in milliseconds for sitemap and robots.txt fetches.",
            "default": 30000
          }
        }
      },
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