Splitrail

Blazing fast, single-executable, cross-platform, agentic development monitor. Supports Claude Code, Gemini CLI, and Codex CLI (and more coming soon), and integrates with Splitrail Cloud. (ccusage equivalent for Gemini CLI and Codex CLI, as well as Claude Code.)

Warning

While support for both Gemini CLI and Codex CLI is implemented, neither tool currently implements the necessary functionality to make them work with Splitrail: Codex CLI does not output enough information to its recorded chat files, and Gemini CLI does not automatically record conversation history at all. PRs are open for both, however: openai/codex#1583 and google-gemini/gemini-cli#4401. React with 👍 on them to encourage them to be merged!

The Splitrail CLI can automatically upload usage data to Splitrail Cloud.

Also check out our developer-first agentic AI experience, Piebald.

Screenshots

Splitrail CLI

Splitrail Cloud

Development

Windows

On Windows, we use lld-link.exe from LLVM to significantly speed up compilation, so you'll need to install it to compile Splitrail. Example for winget:

winget install --id LLVM.LLVM

Then add it to your system PATH:

:: Command prompt
setx /M PATH "%PATH%;C:\Program Files\LLVM\bin\"
set "PATH=%PATH%;C:\Program Files\LLVM\bin"

or

# PowerShell
setx /M PATH "$env:PATH;C:\Program Files\LLVM\bin\"
$env:PATH = "$env:PATH;C:\Program Files\LLVM\bin\"

Then use standard Cargo commands to build and run:

cargo run

macOS/Linux

Build as normal:

cargo run

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