AI Briefingllm-echo 0.5a0 released
Key point
llm-echo 0.5a0, which provides a fake echo model for LLM, has been released.
Details
llm-echo 0.5a0 is a debug plugin that operates without calling an actual LLM. It provides a fake model called echo for use in test automation.
This version adds the -o thinking 1 option, making it easy to align tests with LLM 0.32a0 and above. As shown in the example, you can run uvx --with llm==0.32a1 --with llm-echo==0.5a0 llm -m echo hi -o thinking 1.
With this option, it first mimics a reasoning block on stderr, then returns JSON that echoes the prompt back as-is. In other words, it doesn't perform actual reasoning, but it's useful for verifying the reasoning output flow.
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