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system_prompts_leaks
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better claude-code-system-prompts alternative or higher similarity.
claude-code-system-prompts discussion
claude-code-system-prompts reviews and mentions
Posts with mentions or reviews of claude-code-system-prompts.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2026-10-08.
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Why Isn't the Industry Freaking Out About DeepSeek 4.1 Flash?
there is literally a --system-prompt flag for claude code. In my mitmproxy experiments using that flag appended to the existing system prompt rather than replacing it. So I had to create a little helper to strip the system prompt sent over the wire and add my own.
here is a collection of public system prompts from claude code: https://github.com/Piebald-AI/claude-code-system-prompts
- We're lying to Claude in almost every session
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Claude: System Prompts
> They also don't publish the Claude Code system prompts, which is silly because those are trivial to extract using a logging proxy.
For those interested in the Claude Code tool descriptions, they're collected here: https://github.com/Piebald-AI/claude-code-system-prompts/tre...
As for the tool implementations, there are still remnants from the Claude Code source leak visible online, with a bit of research.
- Claude Code's system prompts, extracted and tracked across 237 versions
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Claude Opus 4.8
It's interesting that (for example for the explore agent https://github.com/Piebald-AI/claude-code-system-prompts/blo... ) they use a personality "you are a file search specialist" and "your strengths" framing. I thought that was largely thought to be useless, or even counterproductive nowadays? Does anyone know more about this stuff?
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Claude Code is unusable for complex engineering tasks with the Feb updates
This might be more complex than I imagined. Seems Claude Code dynamically customizes the system prompt. They also update it with every version. Outright replacing it might miss out on updates.
https://github.com/Piebald-AI/claude-code-system-prompts
https://github.com/Piebald-AI/tweakcc
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Shall I implement it? No
This is the prompt that Claude Code adds when you use /btw
https://github.com/Piebald-AI/claude-code-system-prompts/blo...
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Why XML Tags Are So Fundamental to Claude
https://github.com/Piebald-AI/claude-code-system-prompts/blo... They seem to use XML-esque tags here in the first prompt I looked at
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Karpathy on Programming
That refers to the sandbox "escape hatch" [1], running a command without a sandbox is a separate approval so you get another prompt even if that command has been pre-approved. Their system prompt [2] is too vague about what kinds of failures the sandbox can cause, in my experience the agent always jumps straight to disabling the sandbox if a command fails. Probably best to disable the escape hatch and deal with failures manually.
[1] https://code.claude.com/docs/en/sandboxing#configure-sandbox...
[2] https://github.com/Piebald-AI/claude-code-system-prompts/blo...
- Show HN: Claude Code system prompts with change log
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A note from our sponsor - AppSignal
www.appsignal.com | 15 Oct 2026
Stats
Basic claude-code-system-prompts repo stats
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6 days ago
Piebald-AI/claude-code-system-prompts is an open source project licensed under MIT License which is an OSI approved license.
The primary programming language of claude-code-system-prompts is JavaScript.
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