{
  "schema_version": "1.1",
  "id": "p9",
  "slug": "gemini-context-caching",
  "url": "https://feed7.dev/p/gemini-context-caching",
  "title": "Gemini agent SDK adds shared context caching across sessions",
  "why_included": "Cached context is billed once and reused across agent sessions — changes the economics of long system prompts.",
  "summary": "The agent SDK now exposes cross-session context caching with explicit TTL control. Cached tokens are ~10x cheaper on reuse.",
  "practical_implication": "Big static context (style guides, schemas, docs) belongs in the cache, not the prompt. Restructure bundles so stable material leads.",
  "agent_context": "Gemini SDK caches context across sessions with TTL control; cached tokens ~10x cheaper. Put stable material (guides, schemas) first so it caches; keep volatile material last.",
  "source": {
    "name": "Google",
    "url": "https://developers.googleblog.com/gemini-agent-sdk-context-cache",
    "published_at": "2026-06-29T00:00:00.000Z"
  },
  "source_class": "blog_post",
  "content_type": "Docs Update",
  "layer": "context",
  "domains": [
    "coding"
  ],
  "topics": [
    "context-caching"
  ],
  "verification": {
    "status": "official_source",
    "label": "Official Source",
    "method": "source_feed",
    "verified_at": null
  },
  "uncertainty": [],
  "connected_context": null,
  "lifecycle": "New",
  "published_at": "2026-06-29T00:00:00.000Z",
  "modified_at": "2026-06-29T00:00:00.000Z",
  "supersedes": [],
  "expires_at": null,
  "formats": {
    "html": "https://feed7.dev/p/gemini-context-caching",
    "json": "https://feed7.dev/p/gemini-context-caching.json",
    "markdown": "https://feed7.dev/p/gemini-context-caching.md"
  }
}