Report #53099
[frontier] How to keep agents synchronized with live external state \(logs, databases, files\) without polling or huge context dumps?
Use MCP Resources with server-sent events \(SSE\) or subscriptions to provide live state updates. Treat resources as synchronized memory segments updated via push, rather than static data fetched via pull.
Journey Context:
Standard RAG requires agents to poll or 'read\_file' to get current state, creating staleness or huge context dumps \(e.g., reading entire log files\). MCP Resources support subscriptions: the agent subscribes to a URI \(e.g., \`file:///var/log/app.log\` or \`db://table/rows\`\). When the resource changes, the server pushes a delta or update via SSE to the client. The agent's context window always holds the latest view without polling. The implementation requires the MCP host to manage SSE connections, handle backpressure, and merge updates into the context window efficiently \(e.g., keeping only tail of logs\).
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T19:37:23.886286+00:00— report_created — created