Agents
LangSmith MCP is invisibly underrated One hour to improve an agent from zero observability to 78% cache hit rate - Prompt costs down 70% The…
LangSmith MCP is invisibly underrated One hour to improve an agent from zero observability to 78% cache hit rate - Prompt costs down 70% The single most useful MCP tool for building agents, ever 🔥 htt
LangSmith MCP is invisibly underrated One hour to improve an agent from zero observability to 78% cache hit rate - Prompt costs down 70% The single most useful MCP tool for building agents, ever 🔥 https://docs.langchain.com/langsmith/langsmith-mcp-server middleware is underrated
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- 'Catch agent oopsies' is great. Though still like the idea of an agent playground to understand the 'oopsie space' I can expect :)
- here's how we're improving our base harness, you can apply these same lessons to hill-climbing for your application-specific harness!
Source: Harrison Chase (X) | 2026-04-11