MCode Stack is MiniMax's open-source repository of the workflows, skills and checklists the MiniMax Code team actually uses to build MiniMax Code.
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Each team member's stack is a plugin package of SKILL.md skills that encode engineering habits for agentic coding, from context budgeting and subagent splitting to independent review, and pairs with the MCode Engineering Notes article series.
- 01
Per-engineer stacks (ronny, jiachen) shipped as installable plugin packages
- 02
Skills for planning and splitting work: subagent-split-check, engineering-small-prs, engineering-change-descriptions
- 03
Context and long-session skills: tool-budget-audit, context-tax-audit, long-session-check, handoff-doc, long-command-check
- 04
Review and experiment skills: independent-review, engineering-code-review, harness-experiment, trajectory-review
- 05
Installs as a plugin marketplace in MiniMax Code, Claude Code and Codex, or by copying skills into ~/.agents/skills/
Open Source
Free and open source under the MIT license; the skills run inside MiniMax Code, Claude Code, Codex or other skill-aware agents, which bring their own model costs.
Best for
Developers using MiniMax Code, Claude Code or Codex who want battle-tested, team-authored skills for keeping AI-written code reviewable and agent context lean.
Not ideal for
Anyone looking for a standalone coding agent or IDE, since this is a skills and workflow collection rather than an agent itself.
A rare look at how an AI coding-agent team works with its own agent, packaged as reusable skills that are useful well beyond MiniMax Code.
Published on October 28, 2026 with 390+ stars in its first days; October 29, 2026 updates made each stack a one-command Claude Code and Codex install and renumbered the Engineering Notes companions.
As of
Is MCode Stack free?+
Yes - MCode Stack is Open Source. Free and open source under the MIT license; the skills run inside MiniMax Code, Claude Code, Codex or other skill-aware agents, which bring their own model costs.
Is MCode Stack open source?+
Yes - MCode Stack is open source. Free and open source under the MIT license; the skills run inside MiniMax Code, Claude Code, Codex or other skill-aware agents, which bring their own model costs.
Who is MCode Stack best for?+
Developers using MiniMax Code, Claude Code or Codex who want battle-tested, team-authored skills for keeping AI-written code reviewable and agent context lean.
Who is MCode Stack not ideal for?+
Anyone looking for a standalone coding agent or IDE, since this is a skills and workflow collection rather than an agent itself.
What are the best MCode Stack alternatives?+
The closest MCode Stack alternatives on ai.dosa.dev are Pieces for Developers, agenttrace, Vibe Kanban - all listed under Developer Productivity & Workflow.
Who makes MCode Stack?+
MCode Stack is developed by MiniMax. It is listed in the Developer Productivity & Workflow category on ai.dosa.dev.
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