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docs: add empty system prompt to codex command for speed - #1300
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Add `-c system_prompt=''` to the Codex example so it skips the default system prompt, reducing tokens and latency for commit message generation. Follow-up from #1295. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Mar 6, 2026
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Summary
-c system_prompt=''to the Codex example command to skip the default system prompt, reducing tokens and latency for commit message generationFollow-up from #1295 — @max-sixty asked about using empty system prompts for speed.
opencode: Does not currently support disabling the system prompt. The system prompt is always injected, and even the plugin system has a safety fallback that restores the original if emptied. There are open feature requests (#1242, #1894, #5005) but nothing available yet.
Codex: Has an undocumented
system_promptconfig key that can be overridden via-c system_prompt=''. There are feature requests for dedicated--system-promptflags (#6023, #11588) but not yet merged.