Evidence-based prompt engineering. PromptLens tells you which phrases in your system prompt are actually doing work - and compresses the ones that aren't, with validation to prove nothing broke.
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Updated
Jul 18, 2026 - Python
Evidence-based prompt engineering. PromptLens tells you which phrases in your system prompt are actually doing work - and compresses the ones that aren't, with validation to prove nothing broke.
Inspect, measure, search, and compare the exact provider-neutral context assembled by DeepSeek Harness.
Local request viewer for Claude Code, Codex and OpenCode. Inspect prompts, tools, messages and responses in real time.Claude Code、Codex 和 OpenCode 的本地请求查看器。
Offline human prompt-pack debugger for testing agent expectations before LLM runtime.
Developer focused LLM experimentation and debugging server for testing prompts, tools, MCP integrations, traces, and scheduled AI workflows across models
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