Summary & Key Takeaways ​

• llm-coding-agent 0.1a0 is an experimental coding agent built on Simon Willison's llm library.
• It functions as a Claude code style agent, equipped with file manipulation and command execution tools.
• The agent was developed using LLM prompts to generate its specification and then build it via TDD.
• It includes tools like CodingTools_edit_file for string replacement and CodingTools_execute_command for shell commands.
• A Python API CodingAgent(...).run(...) was also implemented, allowing programmatic interaction.
• The project is available as a "slop-alpha" on PyPI and can be run via uvx.

Our Commentary ​

I'm always fascinated by Simon Willison's experiments. This llm-coding-agent feels like a peek into a future where our dev environments are far more autonomous. The idea of an agent writing its own spec and then building itself via TDD is just... wild. We're seeing these tools get genuinely useful, not just theoretical. But it also makes me wonder about the edge cases, the unexpected loops. What happens when it gets stuck? We're still figuring out how much control we want to cede.