🧠 MOS

Multiskill Optimum Saver

AI optimization layer for Claude Code — match processing power to task complexity, automatically.

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MOS is an AI optimization layer designed to streamline work with Claude-based development tools through intelligent resource management. It solves the problem of token waste and unnecessary costs that occur when overpowered models are used for simple tasks — or conversely, when insufficient power degrades output quality on complex ones.

Using a scoring algorithm (0–140), the system weighs parameters such as model type, thinking depth, text compression, and sub-agent count. Users can choose from five predefined levels — from an economical Trivial tier to a powerful Expert tier — or make manual adjustments. Throughout the session, MOS monitors incoming requests and suggests real-time configuration updates to ensure optimal alignment between task complexity and allocated processing power.

The goal: maximize productivity and cut operational costs by 30–75% — without compromising output quality.

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What It Does

At the start of every Claude session, MOS:

1. Reads your current session-config.json
2. Scans project context (file count, git history, CLAUDE.md)
3. Classifies complexity: TRIVIAL → SIMPLE → MEDIUM → HARD → EXPERT
4. Scores your config (0-140) against complexity requirements
5. Displays a status block — match, borderline, or mismatch
6. Recommends specific changes only when needed
7. Applies changes on your approval (yes / no)

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Status Block (every session)

╔═ MOS ═════════════════════════════════════════╗
║  Model: sonnet        Sub: haiku×3            ║
║  Caveman: lite        Thinking: low           ║
║  Compact@: 60%        Score: 64/140           ║
╠═══════════════════════════════════════════════╣
║  Session: MEDIUM      Reason: refactor task   ║
║  Status:  ✓ Config matches session needs      ║
╚═══════════════════════════════════════════════╝

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Presets by Complexity

Complexity	Model	Caveman	Thinking	Subagents
TRIVIAL	haiku	ultra	off	0
SIMPLE	sonnet	full	off	1×haiku
MEDIUM	sonnet	lite	low	3×haiku
HARD	sonnet	lite	high	4×sonnet
EXPERT	opus	off	high	5×sonnet

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Scoring (0-140)

Parameter	Points
haiku	+18
sonnet	+58
opus	+100
thinking low/high/max	+8/+22/+38
caveman lite/full/ultra	-2/-8/-16
each haiku subagent	+4 (max 28)
each sonnet subagent	+7 (max 28)

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Multi-Skill Routing (automatic)

Trigger	Skill
z-index, CSS stuck, RTL, PNG	css-expert
ad creative, image prompt, copy	ad-creative
mobile, iOS, Android, responsive	mobile-inspector
Word, DOCX, PDF	docx
context > 60%	strategic-compact

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Installation

Easy install (recommended)

npx mos-claude

Hebrew version:

npx mos-claude --hebrew

That's it. One command — MOS is ready. Caveman skill is installed automatically as a required dependency.

Alternative: global install

npm i -g mos-claude
mos-install            # English
mos-install --hebrew   # Hebrew

Alternative: clone & run

git clone https://github.com/Yula-Digital/MOS.git
cd MULTISKILL_OPTIMUM_SAVER
bash install.sh           # English
bash install.sh --hebrew  # Hebrew

Windows: Right-click Install-MOS.ps1 → Run with PowerShell

claude.ai: Paste SKILL_EN.md into Project Instructions.

Restart Claude Code / Claude Desktop. Done.

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Commands

Command	Action
/mos	Show config status + level menu
/mos [1-5]	Apply preset
/mos reset	Restore defaults
/mos save	Save current as default

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Companion Tools

• Caveman — 50-75% token reduction
• Codebase Memory MCP — 99% reduction
• Claude-Mem — cross-session memory
• Token Savior — -77% tokens

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License

MIT — free to use, modify, and distribute.

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