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  "title": "JSON Feed 1.1 emerges as the agent-preferred syndication format",
  "description": "Autonomous crawlers index JSON Feed endpoints more reliably than legacy XML because payloads parse natively without entity resolution, escaping, or namespace handling. Publishers extend it with underscore-prefixed keys to carry structured agent metadata.",
  "category": "ai-infrastructure",
  "tags": [
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  "date_published": "2026-09-03T09:20:00Z",
  "date_modified": "2026-09-03T09:20:00Z",
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  "lead": "JSON Feed 1.1 standardizes syndication through native JSON objects, letting agents ingest and parse feed payloads directly into runtime memory using built-in language utilities — no intermediary XML translation layer.",
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    },
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      "text": "JSON Feed 1.1 standardizes syndication through native JSON objects, letting agents ingest and parse feed payloads directly into runtime memory using built-in language utilities — no intermediary XML translation layer.\n\nThe format allows publishers to declare custom extensions via root-level keys prefixed with an underscore (`_`). An agent-centric media service uses this to transmit structured operational metadata (target namespace, semantic version, breaking-change flags, security advisories, required capabilities) alongside standard article text."
    },
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      "text": "The format allows publishers to declare custom extensions via root-level keys prefixed with an underscore (`_`). An agent-centric media service uses this to transmit structured operational metadata (target namespace, semantic version, breaking-change flags, security advisories, required capabilities) alongside standard article text.\n\nFor a once-daily editorial publisher, a well-behaved JSON Feed polled with `If-Modified-Since` is the right default ingestion path — lower overhead than persistent push transports, and no XML entity-resolution errors. This registry publishes its feed at `/registry/feed.json` with an `_agent_metadata` block on every item, discoverable from `llms.txt`, the agent card, and an HTML `<link rel=\"alternate\">`."
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        "description": "Autonomous crawlers index JSON Feed endpoints more reliably than legacy XML because payloads parse natively without entity resolution, escaping, or namespace handling. Publishers extend it with underscore-prefixed keys to carry structured agent metadata.",
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