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  • Simon Willison’s Weblog: Leaked Windsurf prompt

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    Kurt Seifried
    in

    Source URL: https://simonwillison.net/2025/Feb/25/leaked-windsurf-prompt/ Source: Simon Willison’s Weblog Title: Leaked Windsurf prompt Feedly Summary: Leaked Windsurf prompt The Windurf Editor is Codeium’s highly regarded entrant into the fork-of-VS-code AI-enhanced IDE model first pioneered by Cursor (and by VS Code itself). I heard online that it had a quirky system prompt, and was able to replicate that…

  • Simon Willison’s Weblog: llm-anthropic 0.14

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/25/llm-anthropic-014/#atom-everything Source: Simon Willison’s Weblog Title: llm-anthropic 0.14 Feedly Summary: llm-anthropic 0.14 Annotated release notes for my new release of LLM. The signature feature is: Support for the new Claude 3.7 Sonnet model, including -o thinking 1 and -o thinking_budget X for extended reasoning mode. #14 I had a couple of attempts at…

  • Simon Willison’s Weblog: Aider Polyglot leaderboard results for Claude 3.7 Sonnet

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/25/aider-polyglot-leaderboard/ Source: Simon Willison’s Weblog Title: Aider Polyglot leaderboard results for Claude 3.7 Sonnet Feedly Summary: Aider Polyglot leaderboard results for Claude 3.7 Sonnet Paul Gauthier’s Aider Polyglot benchmark is one of my favourite independent benchmarks for LLMs, partly because it focuses on code and partly because Paul is very responsive at evaluating…

  • Simon Willison’s Weblog: Quoting Catherine Wu

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/24/catherine-wu/ Source: Simon Willison’s Weblog Title: Quoting Catherine Wu Feedly Summary: We find that Claude is really good at test driven development, so we often ask Claude to write tests first and then ask Claude to iterate against the tests. — Catherine Wu, Anthropic Tags: anthropic, claude, ai-assisted-programming, generative-ai, ai, llms, testing, tdd…

  • Simon Willison’s Weblog: Claude 3.7 Sonnet and Claude Code

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/24/claude-37-sonnet-and-claude-code/#atom-everything Source: Simon Willison’s Weblog Title: Claude 3.7 Sonnet and Claude Code Feedly Summary: Claude 3.7 Sonnet and Claude Code Anthropic released Claude 3.7 Sonnet today – skipping the name “Claude 3.6" because the Anthropic user community had already started using that as the unofficial name for their October update to 3.5 Sonnet.…

  • Simon Willison’s Weblog: Grok 3 is highly vulnerable to indirect prompt injection

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/23/grok-3-indirect-prompt-injection/#atom-everything Source: Simon Willison’s Weblog Title: Grok 3 is highly vulnerable to indirect prompt injection Feedly Summary: Grok 3 is highly vulnerable to indirect prompt injection xAI’s new Grok 3 is so far exclusively deployed on Twitter (aka “X"), and apparently uses its ability to search for relevant tweets as part of every…

  • Simon Willison’s Weblog: My LLM codegen workflow atm

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/21/my-llm-codegen-workflow-atm/#atom-everything Source: Simon Willison’s Weblog Title: My LLM codegen workflow atm Feedly Summary: My LLM codegen workflow atm Harper Reed describes his workflow for writing code with the assistance of LLMs. This is clearly a very well-thought out process, which has evolved a lot already and continues to change. Harper starts greenfield projects…

  • Simon Willison’s Weblog: Quoting Joanna Bryson

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/20/joanna-bryson/ Source: Simon Willison’s Weblog Title: Quoting Joanna Bryson Feedly Summary: There are contexts in which it is immoral to use generative AI. For example, if you are a judge responsible for grounding a decision in law, you cannot rest that on an approximation of previous cases unknown to you. You want an…

  • Simon Willison’s Weblog: Using S3 triggers to maintain a list of files in DynamoDB

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/19/s3-triggers/#atom-everything Source: Simon Willison’s Weblog Title: Using S3 triggers to maintain a list of files in DynamoDB Feedly Summary: Using S3 triggers to maintain a list of files in DynamoDB I built an experimental prototype this morning of a system for efficiently tracking files that have been added to a large S3 bucket…

  • Simon Willison’s Weblog: Quoting Ai Pin Consumers FAQ

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    Kurt Seifried
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    Source URL: https://simonwillison.net/2025/Feb/19/ai-pin/#atom-everything Source: Simon Willison’s Weblog Title: Quoting Ai Pin Consumers FAQ Feedly Summary: Can I still use my Ai Pin for offline features? Yes. After February 28, 2025, Ai Pin will still allow for offline features like battery level, etc., but will not include any function that requires cloud connectivity like voice interactions,…