41554 blogs · [
{
"id": "01a087eb-357a-710c-a3c2-407d80e347e8",
"title": "My eval said a perfect MCP server was broken. It was the eval that was lying.",
"url": "https://tengli.dev/posts/calibrating-mcp-evals.html",
"published_at": "2026-07-27T00:00:00+00:00"
},
{
"id": "01a087eb-357a-710c-a3c2-407d81d6f32f",
"title": "I lint-scanned 36 popular MCP servers. A third of them are failing your agent.",
"url": "https://tengli.dev/posts/mcp-servers-failing-agents.html",
"published_at": "2026-07-21T00:00:00+00:00"
},
{
"id": "01a087eb-357a-710c-a3c2-407d829b27c8",
"title": "Designing tools LLMs can actually use: five failure modes I keep seeing",
"url": "https://tengli.dev/posts/tool-design-for-llms.html",
"published_at": "2026-07-12T00:00:00+00:00"
},
{
"id": "01a087eb-357a-710c-a3c2-407d82c55344",
"title": "Why this blog exists",
"url": "https://tengli.dev/posts/hello-world.html",
"published_at": "2026-07-12T00:00:00+00:00"
}
] posts Claim your blog