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Claude Code for prompt eval
21 starsPython
Promptloop – create, run, and improve prompt evals from the terminal
by velapod·May 29, 2026·13 points·3 comments
AI Analysis
●●SolidShip ItNiche Gem
Terminal-native prompt evals with diff proposals beats web dashboards.
Strengths
- •CLI-native workflow keeps eval context inside the terminal session.
- •Proposes prompt diffs instead of blind edits for safer iteration.
- •SQLite chat.db preserves conversation checkpoints across eval runs.
Weaknesses
- •Built on LangChain means orchestrating existing tools, not novel infra.
- •Prompt evaluation space crowded with LangSmith, Promptfoo, Arize.
Category
Target Audience
LLM developers, prompt engineers
Similar To
LangSmith · Promptfoo · Arize Phoenix
Post Description
a CLI agent for prompt evaluation loopsw
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