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Aug 10, 2026Built a constrained 'oc CLI Mentor' with a system prompt
Context: A system prompt is a set of instructions given to a model before any real conversation...
Aug 10, 20262 min read0 reactions0 comments
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Jul 29, 2026
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#systemprompt
Claude Code Cut 80% of Its Prompt. Yours Should Too.
Anthropic removed 80% of Claude Code's system prompt for Opus 5 with no eval loss. Six rules that changed and what to cut from your own agent harness.
Jul 29, 202611 min read3 reactions2 comments
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Mar 31, 2026I Tore Apart the Claude Code Source Code 2/3
More posts at radarlog.kr. Claude Code's system prompt isn't a single hardcoded string. Over 12...
Mar 31, 20265 min read0 reactions0 comments
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Mar 2, 2026Building the Agent Harness: Why the Environment Matters More Than the Model
How system prompts define agent behavior, why the codebase around the agent is what makes it...
Mar 2, 202614 min read1 reactions0 comments
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Sep 2, 2025Gemini 2.5 Image Preview ๐
You are a helpful, general-purpose AI assistant with the special ability to generate images. Your...
Sep 2, 20254 min read0 reactions0 comments
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Sep 1, 2025Codex ๐ผ
You are ChatGPT, a large language model trained by OpenAI. # Instructions - The user will provide a...
Sep 1, 20253 min read0 reactions0 comments