Antimetal Plugin — Claude Code (beta)

⚠️ DEPRECATED: This repository has been replaced by antimetal/skills. See that repo for installation instructions.

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Bring Antimetal's software investigation intelligence into Claude Code. Triage problems, investigate root causes, fetch observability artifacts, and apply remediations — all from your terminal.

Setup

1. Create an Antimetal Account

Sign up at antimetal.com and connect your cloud infrastructure.

2. Add the Plugin Marketplace

Since this plugin is hosted on GitHub (not the built-in Claude Code marketplace), you need to register this repo as a plugin source first:

/plugin marketplace add antimetal/claude-plugin

3. Install the Plugin

/plugin install antimetal

4. Authenticate

When you first use an Antimetal tool or skill, Claude Code will open a browser window to log in to your Antimetal account via OAuth. Once you log in, you're all set — tokens are stored securely and refreshed automatically.

Alternative: API key

If OAuth isn't available in your environment, you can authenticate with an API key instead:

1. Generate a key at API Keys Settings
2. Set the environment variable:

   export ANTIMETAL_API_KEY="your-key-here"

   Add it to your shell profile (~/.zshrc, ~/.bashrc, etc.) so it persists.

MCP server only (no skills)

If you just want the MCP tools without the plugin skills:

claude mcp add --transport http antimetal https://mcp.antimetal.com

OAuth will trigger automatically on first use. For API key auth, pass the header explicitly:

claude mcp add --transport http antimetal https://mcp.antimetal.com \
  --header "Authorization: Bearer ${ANTIMETAL_API_KEY}"

Skills

Skill	Description
/investigate	Search issues, kick off investigations, read reports, query Antimetal's AI
/fix	Retrieve and apply remediation steps to your codebase
/antimetal-mcp-setup	Configure the MCP server connection (OAuth or API key)

MCP Tools

Connects to Antimetal's remote MCP server at mcp.antimetal.com, providing access to these tools:

Tool	Description
search_issues	Paginated list of issues with severity, status, and environment
get_issue_report	Full investigative report — root cause, timeline, causal graph
get_issue_fixes	Remediation steps (code changes, CLI commands, context)
investigate_issue	Create a new issue and start async automated investigation
get_artifact	Retrieve raw evidence: logs, traces, metrics, events, files, topology
ask	Ask Antimetal's AI about infrastructure, software, deployments, telemetry, logs, code

Usage

Investigate a problem

/investigate
> Our API latency spiked in us-east-1 around 2pm

Check on an investigation

/investigate
> Check on issue #42

Fix an issue

/fix
> Fix issue #42

Links

• Documentation
• Antimetal
• Cursor Plugin