CLI ToolsMay 13, 2026·2 min read

Reasonix — DeepSeek-Native Coding Agent CLI

Reasonix is a DeepSeek-native coding agent CLI for the terminal; README reports a 99.82% cache hit in a real-day case study.

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Intro

Reasonix is a DeepSeek-native coding agent CLI for the terminal; README reports a 99.82% cache hit in a real-day case study.

Best for: Long coding sessions where you want stable tool loops and lower token costs

Works with: Node.js ≥22, DeepSeek API key, Windows/macOS/Linux terminals

Setup time: 2-6 minutes

Key facts (verified)

  • GitHub: 1612 stars · 95 forks · pushed 2026-05-13.
  • License: MIT · owner avatar + repo URL verified via GitHub API.
  • README-verified entrypoint: npx reasonix code # paste a DeepSeek API key on first run; persists after.

Main

  • Use code mode when you want filesystem + shell tools gated behind explicit apply/review (README highlights SEARCH/REPLACE → /apply style).

  • Keep it running for long sessions: the project emphasizes cache hit-rate and prefix stability as the core invariant, not a toggle.

  • Start with reasonix doctor if things feel off (Node/version/API key/MCP wiring) before debugging prompts or configs.

Source-backed notes

  • README install section uses npx reasonix code and requires Node ≥ 22, with first-run API key prompt.
  • README describes a real-day case study (2026-05-01) with 435M input tokens and a 99.82% cache hit rate.
  • README lists core commands (code, chat, run, doctor, update) and points to a CLI reference for more.

FAQ

  • Is it multi-model?: No — README positions it as DeepSeek-only to preserve cache invariants.
  • How do I start in another directory?: README shows npx reasonix code --dir /path/to/project.
  • Why is it cheaper in long sessions?: README ties cost control to prefix-cache hit rate and stable loops; validate on your own workloads.
🙏

Source & Thanks

Source: https://github.com/esengine/DeepSeek-Reasonix > License: MIT > GitHub stars: 1612 · forks: 95

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