systemcc

systemcc is a skill for Claude Code, Codex from Kasempiternal/Claude-Agent-System. It costs 39 tokens per session (3,915 once invoked), scanned A, original, MIT.

A coding workflow router that detects a task's complexity, risk, scope, and build configuration, then selects an execution workflow with multiple code-review stages.

In plain words
What is it for?
Use it to route coding tasks automatically based on their detected characteristics and to run the resulting work through the configured review process.
Why use it?
It reduces manual decisions about how a task should be handled and includes review steps for changes produced by the workflow.

Skill for Claude CodeCodex

Part of the cas plugin — 19 skills, 7 agents, 3 hooks, 2 MCP servers shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/kasempiternal/claude-agent-system/systemcc
Any agent
npx skills add Kasempiternal/Claude-Agent-System --skill systemcc
Clone the repo
git clone --depth 1 https://github.com/Kasempiternal/Claude-Agent-System

Made for: Claude Code, Codex.

Or install cas, the plugin that ships this one along with the rest of its 19 skills, 7 agents, 3 hooks, 2 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for systemcc

README.md
[![agentmods](https://agentmods.dev/badge/skills/kasempiternal/claude-agent-system/systemcc.svg)](https://agentmods.dev/skills/kasempiternal/claude-agent-system/systemcc)
Your own site
<a href="https://agentmods.dev/skills/kasempiternal/claude-agent-system/systemcc"><img src="https://agentmods.dev/badge/skills/kasempiternal/claude-agent-system/systemcc.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,915 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00039 $0.03915
Opus 5 $0.00019 $0.01958
Sonnet 5 $0.00008 $0.00783
Haiku 4.5 $0.00004 $0.00392

Measured 4d ago against content hash 4da41311dcc2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

systemcc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

claude-agent-system-plugin/skills/systemcc/SKILL.md · 539 lines

How it starts

The opening of the file, as written. The whole thing — 539 lines — stays where its author put it; the contents beside it link to each section on GitHub.

███████╗██╗   ██╗███████╗████████╗███████╗███╗   ███╗
██╔════╝╚██╗ ██╔╝██╔════╝╚══██╔══╝██╔════╝████╗ ████║
███████╗ ╚████╔╝ ███████╗   ██║   █████╗  ██╔████╔██║
╚════██║  ╚██╔╝  ╚════██║   ██║   ██╔══╝  ██║╚██╔╝██║
███████║   ██║   ███████║   ██║   ███████╗██║ ╚═╝ ██║
╚══════╝   ╚═╝   ╚══════╝   ╚═╝   ╚══════╝╚═╝     ╚═╝

            ⚔ Command Center ⚔
           CLAUDE AGENT SYSTEM

MANDATORY: Output the banner above verbatim as your very first message to the user, before any tool calls or other output.

SystemCC - Master Command Router

User types: /systemcc "any task" Claude does: EVERYTHING automatically


Phase 1: CRITICAL DETECTION (MANDATORY)

When /systemcc is detected, you MUST IMMEDIATELY show:

🎯 SYSTEMCC DETECTED - Command acknowledged and workflow initiated
✅ Following SYSTEMCC workflow instructions

This message MUST appear:

  • IMMEDIATELY when /systemcc is detected
  • BEFORE any other processing
  • CANNOT BE SKIPPED under any circumstances

Phase 2: LYRA AI PROMPT OPTIMIZATION (MANDATORY)

After detection, ALWAYS show Lyra optimization with this EXACT format:

═══════════════════════════════════════════════════════════════
🎯 LYRA AI PROMPT OPTIMIZATION
═══════════════════════════════════════════════════════════════

📝 Original Request:
"$ARGUMENTS"

🔍 Analysis Phase:
- Deconstructing intent...
- Diagnosing gaps...
- Developing enhancements...
- Delivering optimized prompt...

✨ Optimized Prompt:
"[enhanced prompt with complete specifications]"

📊 Optimization Details:
- Mode: [BASIC/DETAIL]
- Complexity Score: [1-10]
- Improvements Applied: [number]

🔧 Key Enhancements:
• [Enhancement 1]
• [Enhancement 2]
• [Enhancement 3]

═══════════════════════════════════════════════════════════════

The 4-D Methodology

  1. DECONSTRUCT: Extract coding intent, feature requirements, technical context
  2. DIAGNOSE: Audit for technical clarity and specification gaps
  3. DEVELOP: Select optimal techniques based on request type:
    • Bug Fixes → Precise error context + systematic debugging
    • Feature Development → Clear requirements + implementation scope
    • Refactoring → Architecture goals + code quality standards
    • UI/UX → Design principles + user experience objectives
  4. DELIVER: Construct development-focused prompt with complete specs

Read the full file on GitHub · 539 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 539 lines · 39 tokens per session scan A 4da41311dcc2

Subscribe to this mod's changes

systemcc is a skill published in the GitHub repository Kasempiternal/Claude-Agent-System (15 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 3,915 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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