I measure software performance and write down what I find, including the parts I could not explain.https://efecakici.com.tr/https://efecakici.com.tr/blog/agent-injection-negative-result/https://efecakici.com.tr/blog/agent-injection-negative-result/A canary experiment with a filesystem server and a fetch server: two models, one injected instruction, zero canaries read. The interesting part is what happened when a human asked instead.Mon, 21 Sep 2026 00:00:00 GMThttps://efecakici.com.tr/blog/mcp-servers-security-declarations/https://efecakici.com.tr/blog/mcp-servers-security-declarations/584 tools across 38 servers, 392 with annotations, 17 servers with none at all. The ones that stay silent are the browser controllers and the database drivers.Mon, 21 Sep 2026 00:00:00 GMThttps://efecakici.com.tr/blog/agent-lab-three-paths/https://efecakici.com.tr/blog/agent-lab-three-paths/A local lab, 34 recorded runs, and 6 stolen credential files. You tell an agent to check a library's docs; the website steals your session and executes commands before the model speaks.Sun, 20 Sep 2026 00:00:00 GMThttps://efecakici.com.tr/blog/omp-50-mb-7-7x-faster-startup/https://efecakici.com.tr/blog/omp-50-mb-7-7x-faster-startup/I updated omp and it opened instantly instead of the usual split-second lag. 24 alternating runs per version later: 232 ms down to 30 ms, and a binary 50 MB heavier.Tue, 15 Sep 2026 00:00:00 GMT