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Show HN: Agent Joe – a Rust only coding agent with no shell access

Agent Joe, an open source TUI-based coding tool limited to Rust and without shell access, has been released on GitHub. The tool aims to improve security by preventing arbitrary command execution and focuses on Rust-specific actions. While functional, it currently underperforms compared to Codex, likely due to prompt quality and lack of a plan mode.

read1 min publishedJun 12, 2026

An open source TUI-based coding tool that only works with rust and does not have access to the shell.

I just hate the fact that cli tools with connections to llm providers can execute any arbitrary command on my terminal.

With the rust only requirement, I can also reduce the number of possible actions to just rust specific ones, lowering the total tool count.

And this is a fun project to work on.

Works pretty well currently, still doesn't do as good of a job as codex, I think the main reason being the prompts not being as good and not having a plan mode.

The tui supports some flags

Flag Description
--debug Adds significantly more logging and prints out thinking tokens.
--simple Multi-agent mode will be disabled, will work just like codex
Provider Support
OpenAI Fully supported
Codex Fully supported
Claude Should work, haven't tested it in a minute due to cost
OpenRouter Does not support web_search but everything should work
Local Response api fully supported
cargo run --relase

The TUI is similar to claude code and codex with one major difference. Vim bindings are foced upon you.

TBD

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