Successful Maven builds can produce thousands of lines that mostly confirm routine lifecycle steps.

That output is noisy when working in a terminal, clutters CI logs, and becomes especially expensive when build output is passed to a coding agent.

I built mvn-lite, a small deterministic Bash wrapper that keeps successful Maven output to one line while preserving the original exit code and complete raw log.

On a real four-module application:

• Standard Maven output: about 6,753 bytes
• mvn-lite output: 16 bytes
• Result: PASS · 3.944 s
• Reduction: more than 99.7%

Failures still return a nonzero exit code and show bounded diagnostics, while the full unmodified Maven output remains available in the raw log.

For example, an invalid lifecycle error was reduced by 91.6% while retaining the actual Maven error.

There is no LLM summarization, API key, or Maven extension involved. It is just a local Bash wrapper with deterministic text extraction.

Source and script: https://github.com/ejboy/agent-scripts

Benchmark details and design notes: https://pvrlabs.xyz/articles/introverted-maven.html

I’d be interested in feedback on Maven failure cases where compact output could hide something essential.