coderunner VS mcp-error-formatter

Compare coderunner vs mcp-error-formatter and see what are their differences.

coderunner

A secure local sandbox to run LLM-generated code using Apple containers (by instavm)

mcp-error-formatter

Format MCP tool errors exactly like Cursor's style for better LLM understanding. (by bjoaquinc)
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coderunner mcp-error-formatter
2 2
500 3
48.4% -
8.7 7.0
24 days ago about 1 month ago
Python JavaScript
Apache License 2.0 Apache License 2.0
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coderunner

Posts with mentions or reviews of coderunner. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-08-05.
  • OpenAI Open Models
    15 projects | news.ycombinator.com | 5 Aug 2025
    Using LM-Studio as the frontend and Playwright-powered MCP tools for browser access. I've had success with one such MCP: https://github.com/instavm/coderunner It has a tool called navigate_and_get_all_visible_text, for example.

    Here's a demo of this functionality: https://www.youtube.com/watch?v=9mLrGcuDifo

  • Show HN: Mcp-use – Connect any LLM to any MCP
    4 projects | news.ycombinator.com | 31 Jul 2025
    > MCP-Use supports running MCP servers in a sandboxed environment using E2B's cloud infrastructure.

    If you want to support a local and privacy friendly sandboxed environment for code execution, you may consider something I have built, Coderunner - https://github.com/instavm/coderunner - it uses Apple's native container for hosting a jupyter server and a headless browser.

mcp-error-formatter

Posts with mentions or reviews of mcp-error-formatter. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2025-07-31.
  • Show HN: Mcp-error-formatter – Cursor-style JSON errors for any MCP/LLM tool
    1 project | news.ycombinator.com | 3 Aug 2025
  • Show HN: Mcp-use – Connect any LLM to any MCP
    4 projects | news.ycombinator.com | 31 Jul 2025
    Hey thanks for the comment, the work from https://github.com/bjoaquinc/mcp-error-formatter is great. I will definitely put some version of this into one of the next releases. Just opened an issue mentioning this thread.

    The problem with the package above is that it is server side, and I think it should be. Server is the one that knows (has responsibility to know) if a tool is retryable and has informations about the error, and fairly so.

    I see though how some sort of improved error formatting could be introduced in the client as well, but it shouldn't contain any logic about the error, rather format the error in the best way possible (in the direction in which it is best understandable by LLMs).

What are some alternatives?

When comparing coderunner and mcp-error-formatter you can also consider the following projects:

claude-code-tools - Collection of practical productivity tools for Claude Code

mcp-use-cli - mcp-use powered CLI to connect to any MCP server with any LLM, from your terminal

mcp-use - mcp-use is the easiest way to interact with mcp servers with custom agents [Moved to: https://github.com/pietrozullo/mcp-use]

agentops - Python SDK for AI agent monitoring, LLM cost tracking, benchmarking, and more. Integrates with most LLMs and agent frameworks including CrewAI, Agno, OpenAI Agents SDK, Langchain, Autogen, AG2, and CamelAI

griptape - Modular Python framework for AI agents and workflows with chain-of-thought reasoning, tools, and memory.

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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com
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Sevalla - Deploy and host your apps and databases, now with $50 credit!
Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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