Claude Code Philosophy
Design better agents.
claude-code-philosophy is a public skill and plugin package for developers who want to build agentic systems that are actually useful: controllable, legible, recoverable, and grounded in real product constraints.
It is inspired by the design philosophy behind Claude Code-class agent systems, but written as vendor-neutral guidance that can help builders working with Codex, Claude Code, or their own custom agent runtimes.
This project is unofficial. It is not affiliated with Anthropic.
Why this exists
A lot of agent projects are still too shallow:
- great demo, weak product
- many tools, no capability model
- “memory” with no boundaries
- autonomy with no control surface
- impressive output, fragile runtime
This project exists to push in the other direction.
The core belief is simple: the difference between a toy agent and a useful one is usually the harness, not just the model or the prompt.
What you get
This repository currently ships one installable skill:
It helps developers:
- turn fuzzy agent ideas into concrete system designs
- review an existing agent for harness, tool, memory, safety, and UX gaps
- decide whether a workflow needs a real agent or a simpler tool
- make vibe-coded AI projects more disciplined and useful
What the skill teaches
The skill is built around a few strong principles:
- harness-first design
- explicit tool and permission boundaries
- layered memory instead of one giant blob
- recovery and durability as first-class features
- human control as part of the product
- practical usefulness over fake autonomy
Quick install
Codex: install the skill directly
Inside Codex, run:
$skill-installer install https://github.com/dadwadw233/claude-code-philosophy/tree/main/skills/agent-design-coach
Then restart Codex.
Claude Code: install through the repository marketplace
Inside Claude Code, run:
/plugin marketplace add dadwadw233/claude-code-philosophy
/plugin install claude-code-philosophy@claude-code-philosophy
Then invoke the installed skill with:
/claude-code-philosophy:agent-design-coach
Manual install
- Codex: copy this repo to
~/.codex/plugins/claude-code-philosophy and register it in ~/.agents/plugins/marketplace.json
- Claude Code: copy
skills/agent-design-coach to ~/.claude/skills/agent-design-coach
Detailed examples are below.
Installation details
Codex: direct skill install
This is the simplest path if you only want the skill itself.
$skill-installer install https://github.com/dadwadw233/claude-code-philosophy/tree/main/skills/agent-design-coach
After installation, restart Codex.
Codex: local plugin install
Clone the repo:
git clone git@github.com:dadwadw233/claude-code-philosophy.git
Copy it into your local plugin area:
mkdir -p ~/.codex/plugins
cp -R /absolute/path/to/claude-code-philosophy ~/.codex/plugins/claude-code-philosophy
Create or update ~/.agents/plugins/marketplace.json:
{
"name": "personal-plugins",
"interface": {
"displayName": "Personal Plugins"
},
"plugins": [
{
"name": "claude-code-philosophy",
"source": {
"source": "local",
"path": "./.codex/plugins/claude-code-philosophy"
},
"policy": {
"installation": "AVAILABLE",
"authentication": "ON_INSTALL"
},
"category": "Productivity"
}
]
}
Restart Codex. The plugin should appear in the plugin directory.
Claude Code: marketplace install
This repository includes a Claude Code marketplace manifest at .claude-plugin/marketplace.json.
Register the marketplace:
/plugin marketplace add dadwadw233/claude-code-philosophy
Install the plugin:
/plugin install claude-code-philosophy@claude-code-philosophy
After installation, the explicit slash command is:
/claude-code-philosophy:agent-design-coach
Claude Code: manual skill install
Copy the skill directory:
mkdir -p ~/.claude/skills
cp -R skills/agent-design-coach ~/.claude/skills/agent-design-coach
For a manually installed standalone skill, invoke:
/agent-design-coach
How to use it
Codex
Use $agent-design-coach to turn this coding-agent idea into a real system architecture.Use $agent-design-coach to review this repo's agent design for harness, memory, permissions, and UX gaps.
Claude Code plugin install
/claude-code-philosophy:agent-design-coach/claude-code-philosophy:agent-design-coach Review this coding agent and tell me what is weak in its harness design.
Claude Code standalone skill install
dadwadw233