https://isomoes.github.io/en/blog Isomoes personal blog en-us jiahaoxiang2000@gmail.com (Isomoes) jiahaoxiang2000@gmail.com (Isomoes) Sat, 12 Sep 2026 00:00:00 GMT https://isomoes.github.io/en/blog/tools/model-harness-fit https://isomoes.github.io/en/blog/tools/model-harness-fit Why can the same GPT model stop midway, slow down, or struggle to finish a task in a different environment? Drawing on our experience with OpenCode and Codex, we examine how the harness affects availability and task performance, and how to choose a better fit. Sat, 12 Sep 2026 00:00:00 GMT jiahaoxiang2000@gmail.com (Isomoes) ai-agentharnesscodexopencodedeepseek-harnesstool-use https://isomoes.github.io/en/blog/tools/deepseek-harness-ikanban https://isomoes.github.io/en/blog/tools/deepseek-harness-ikanban Our first experience with DeepSeek Harness, why its everything-is-a-plugin architecture led us to rewrite iKanban on top of it, what composition made possible, and which missing workflow features still required our own solutions. Mon, 17 Aug 2026 00:00:00 GMT jiahaoxiang2000@gmail.com (Isomoes) deepseek-harnessikanbanpluginscordisai-codingmulti-sessionagent-runtimeopencode