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Everything Claude Code

lastmod 2026-04-27created 2026-04-129 edits

Everything Claude Code (ecc.tools) - The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

A hackathon winner's recipe for an AI development team

Key points

  • What context rot really is - 4 structural causes of Claude Code suddenly getting dumb
  • Cut costs by 80% with three lines of settings.json
    • model: sonnet (60% savings)
    • MAX_THINKING_TOKENS: 10000 (70% savings)
    • CLAUDE_CODE_SUBAGENT_MODEL: haiku (80% savings)
  • /clear vs /compact - A context diet workflow
  • The MCP trap - Why a 200K context shrinks to 70K
  • Continuous Learning v2 - A memory learning system (automatic promotion from instinct → skill)
  • AgentShield - Security scan of Claude Code settings with a single npx line

Cumulative cost savings

Applying all four settings can cut costs by more than 80% compared to the default settings.

Setting

Default

Recommended

Savings

model

opus

sonnet

~60% cost savings

MAX_THINKING_TOKENS

31,999

10,000

~70% savings on hidden thinking costs

CLAUDE_AUTOCOMPACT_PCT_OVERRIDE

95

50

Maintains quality in long sessions

CLAUDE_CODE_SUBAGENT_MODEL

opus

haiku

Large savings on subagent costs

What's inside everything-claude-code

  • 38 specialized agents (planner, architect, tdd-guide, security-reviewer, etc.)
  • 156 skills (loaded only when needed)
  • 72 commands, 34 rules, 14 MCP server configs
  • 1,282 tests / 98% coverage
  • Claude Code, Cursor, Codex, OpenCode, Antigravity, and Gemini all work with the same settings

Installation

Three lines of settings.json (do it today): 

{
  "model": "sonnet",
  "env": {
    "MAX_THINKING_TOKENS": "10000",
    "CLAUDE_AUTOCOMPACT_PCT_OVERRIDE": "50",
    "CLAUDE_CODE_SUBAGENT_MODEL": "haiku"
  }
}

Install the plugin: 

/plugin marketplace add https://github.com/affaan-m/everythin...
/plugin install ecc@ecc

Install rules separately: 

git clone https://github.com/affaan-m/everythin...
cd everything-claude-code
./install.sh --profile full

Commands used

  • /clear - Reset context between unrelated tasks
  • /compact - Compress context between milestones
  • /cost - Monitor token costs
  • /model opus - Switch temporarily when deep reasoning is needed
  • /plugin marketplace add - Add a plugin marketplace
  • /plugin install - Install a plugin
  • /security-scan - AgentShield security scan
  • /evolve - Promote 3 or more instincts to a skill
  • /instinct-export, /instinct-import - Share learning results with the team
  • npx ecc-agentshield scan - Security scan without installation

See also

Favorite site

author Zer0 sitemap