Install the Claude Code plugins

The ClosedLoop plugins are the agent and orchestration layer that runs inside Claude Code. They are installed globally per-user and cached under ~/.claude/plugins/cache/closedloop-ai/.

Prerequisites

Claude Code CLI (claude --version must work).
Python 3.11+.
jq on your PATH.
Bash 3.2+.

One-line install

The recommended install is a single command that installs every plugin at user scope and enables auto-update.

curl -fsSL https://raw.githubusercontent.com/closedloop-ai/claude-plugins/main/install.sh | bash

The installer will:

Preflight the Claude CLI, Python 3.11+, and jq.
Add the marketplace: claude plugin marketplace add closedloop-ai/claude-plugins.
Install every plugin at user scope: claude plugin install <plugin>@closedloop-ai --scope user.
Report installed / updated / up-to-date / failed counts for each plugin.
Enable auto-update by default so the plugins stay current.

Interactive install

You can also install from within Claude Code:

claude /plugin marketplace install closedloop

This gives you per-plugin prompts instead of installing all six at once.

What gets installed

Plugin	Purpose
`bootstrap`	Meta-orchestrator that analyzes a codebase and generates a project-specific suite of expert agents and a `critic-gates.json` config.
`code`	The hub plugin. Implements the full ClosedLoop autonomous SDLC: PRD → plan → critics → implementation → tests → visual QA → validation.
`code-review`	Multi-agent partitioned code review with deterministic hygiene checks, risk-based routing, caching, and GitHub PR inline comments.
`judges`	LLM-as-judge framework — 21 judge agents that grade plans, code, and PRDs with structured `CaseScore` reports.
`platform`	Claude Code expert guide, prompt engineering, mermaid diagrams, artifact upload, and skill scaffolding.
`self-learning`	Pattern capture and organizational knowledge sharing. Stores patterns in TOON format and tracks deterministic success rates.

Install Python runtime dependencies

Several plugins use Python tooling. Install the runtime dependencies once per machine:

# Run from the claude-plugins repo root if you cloned it,
# or after the installer places scripts under ~/.claude/plugins/cache/closedloop-ai/
bash ~/.claude/plugins/cache/closedloop-ai/code/*/scripts/install-dependencies.sh

The script detects your OS, verifies Python 3.11+, installs jq and awk if missing, and installs Python dependencies. On systems with PEP 668 ("externally managed") Python, it falls back to a local venv at ./.venv.

Pass --yes or -y to skip confirmation prompts.

Development install (for contributors)

git clone git@github.com:closedloop-ai/claude-plugins.git
cd claude-plugins
git config core.hooksPath .githooks

The core.hooksPath line enables the repo's pre-push hook, which enforces CHANGELOG.md updates whenever you change a plugin.

Verify the install

claude plugin list

You should see all six ClosedLoop plugins listed with their versions.

What the plugins add to your tooling

After install you have new slash commands and skills available in every Claude Code session:

/code:code – start a planning/execution loop against a workdir.
/code:amend-plan – conversationally amend an existing plan.
/code:plan-with-codex – run a multi-round plan debate between Claude and Codex.
/code:cancel-code – clear the current loop state for a workdir.
/code-review:start – run multi-agent code review on the current diff.
/agent-bootstrap – generate project-specific expert agents from your codebase.
/process-learnings, /export-closedloop-learnings, /push-learnings, /pull-learnings, /prune-learnings, /goal-stats – self-learning pipeline.

Skills are discovered automatically by Claude Code from context and do not need to be invoked by name.

How the desktop app uses the plugins

The desktop app resolves the claude binary (honoring a CLAUDE_BIN override), spawns it with a plan or execute command, and tails the NDJSON stream to produce live progress in the web app. If the plugins are missing you will see a preflight.script_not_found telemetry event and the loop will refuse to start. Install or update the plugins and restart the desktop app to recover.

Update path

Plugin versions live under plugins/<name>/.claude-plugin/plugin.json in the repository. Auto-update is on by default. To force a refresh:

claude /plugin marketplace update closedloop-ai

Then /exit and restart your Claude Code session.

Next step

Once the plugins are installed, continue to Install the desktop client.

Install the Claude Code plugins

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