Coding agent · CLI / Desktop / Web / IDE

Reasonix

Reasonix is a CLI / Desktop / Web / IDE in the 2026 agents.dancingteeth catalog. Terminal-first users on DeepSeek who want long cheap sessions with MCP and a local desktop/TUI.

Last updated

Verified

Best for

Terminal-first users on DeepSeek who want long cheap sessions with MCP and a local desktop/TUI.

Skip if

You refuse DeepSeek or need a big commercial IDE ecosystem.

Who it fits

  • Terminal-first users on DeepSeek who want long cheap sessions with MCP and a local desktop/TUI.
  • Terminal-first engineers who live in the shell and git
  • People who prefer a dedicated desktop coding surface
  • Builders who start in the browser without a local IDE setup
  • Developers who want agent help inside an existing IDE

Pros

DeepSeek-native terminal agent (MIT); cache-first sessions claim high prefix-cache hits and lower input cost; MCP; plan mode + sandbox; single Go binary; subagents (explore/research/review).

Cons

DeepSeek-first defaults; other OpenAI-compatible providers via BYOK; young brand.

Facts

Locality:
Local-first
Surfaces:
CLI, Desktop, Web, IDE plugin
Maturity:
General availability
BYOK:
Bring your own API key
Open source:
Source available
MCP:
Model Context Protocol support
Verified:
Oct 2026

Agent standards & memory

AGENTS.md: PartialSKILL.md: PartialRules / memory: Append-only session aligned to DeepSeek prefix cache; plan mode permissions.Free (MIT); bring your own model key (DeepSeek built in, OpenAI-compatible providers).

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Alternatives

Frequently asked questions

What is Reasonix?

Reasonix is a CLI / Desktop / Web / IDE covered in the agents.dancingteeth 2026 catalog. DeepSeek-native terminal agent (MIT); cache-first sessions claim high prefix-cache hits and lower input cost; MCP; plan mode + sandbox; single Go binary; subagents (explore/research/review).

Who is Reasonix best for?

Terminal-first users on DeepSeek who want long cheap sessions with MCP and a local desktop/TUI.

When should I skip Reasonix?

You refuse DeepSeek or need a big commercial IDE ecosystem.

What are the main trade-offs of Reasonix?

Pros: DeepSeek-native terminal agent (MIT); cache-first sessions claim high prefix-cache hits and lower input cost; MCP; plan mode + sandbox; single Go binary; subagents (explore/research/review). Cons: DeepSeek-first defaults; other OpenAI-compatible providers via BYOK; young brand.

Does Reasonix support AGENTS.md, SKILL.md, or MCP?

This card lists AGENTS.md as Partial, SKILL.md as Partial, and rules/memory as Append-only session aligned to DeepSeek prefix cache; plan mode permissions.. Free options: Free (MIT); bring your own model key (DeepSeek built in, OpenAI-compatible providers)..

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