Overview
Expert guidance for interactive data analysis against a live Infrahub instance. This skill uses the Infrahub MCP server to query, correlate, and reason over infrastructure data on demand — answering operational questions that span multiple node types and relationships.
Use this skill for any question of the form *"what does Infrahub currently know about X, and how does it relate to Y?"*
Typical question patterns:
- Compliance — "Are all devices following the naming convention?"
- Service impact — "Which services are hosted on devices in this rack?"
- Maintenance windows — "Which devices are currently in a maintenance window, and what depends on them?"
- Drift detection — "Which realized devices differ from their topology design?"
- Capacity — "Which racks are over 80% full?"
- Change impact — "What BGP sessions, services, and IPs depend on this prefix?"
- Inventory gaps — "Which devices have no platform or OS version recorded?"
For automated, pipeline-enforced checks that block proposed changes, see ../infrahub-check-creator/SKILL.md. For repeatable scheduled reports exported as artifacts, see ../infrahub-transform-creator/SKILL.md.
When to Use
- Answering operational questions interactively via natural language
- Cross-referencing two or more node types to find relationships or gaps
- Investigating the blast radius of a change before executing it
- Auditing data quality across the inventory
- Producing one-time or on-demand reports for stakeholders
- Exploring schema structure and data before writing a generator or check
How It Works
The Infrahub MCP server exposes tools that let Claude query Infrahub data directly. The typical workflow:
- Query — use MCP tools to fetch current state from Infrahub
- Correlate — join, diff, or filter the data against a policy or second dataset
- Reason — identify gaps, anomalies, or relationships
- Report — surface findings with context and remediation hints
Rule Categories
| Priority | Category | Prefix | Description |
|---|---|---|---|
| CRITICAL | MCP Tools | mcp- | Available Infrahub MCP tools, invocation patterns, response structure |
| CRITICAL | Query Patterns | query- | GraphQL structures for fetching, filtering, and traversing relationships |
| HIGH | Correlation | correlation- | Joining, diffing, and reasoning over data from multiple queries |
| HIGH | Reporting Output | reporting- | Presenting findings: summaries, tables, per-object detail, remediation hints |
| MEDIUM | Approach Selection | approach- | When to use MCP analysis vs InfrahubCheck vs Transform |
MCP Server Basics
When the Infrahub MCP server is connected, Claude can call tools such as:
mcp__infrahub__infrahub_query— Execute a GraphQL query (primary tool)mcp__infrahub__infrahub_list_schema— List available node kindsmcp__infrahub__infrahub_get— Retrieve a specific object by ID or filtersmcp__infrahub__infrahub_create— Create an object (remediation, on a branch)mcp__infrahub__infrahub_update— Update an object (remediation, on a branch)
# Example: find all devices in an active
# maintenance window
query MaintenanceDevices {
MaintenanceWindow(status__value: "active") {
edges {
node {
name { value }
start_time { value }
end_time { value }
devices {
edges {
node {
name { value }
role { value }
site {
node { name { value } }
}
}
}
}
}
}
}
}Typical Analysis Workflow
1. Understand the question
→ "Which services depend on devices currently
in a maintenance window?"
2. Identify the node types involved
→ MaintenanceWindow, DcimDevice, Service
(or equivalent in your schema)
3. Query current state
→ mcp__infrahub__infrahub_query — one query
per node type, or combined
4. Correlate the data
→ Join across node types, filter, count, diff
5. Report findings
→ Summarize with counts, list affected objects,
suggest next stepsSupporting References
- examples.md — Analysis patterns (naming, VLAN, BGP, maintenance, service impact)
- ../infrahub-common/graphql-queries.md — GraphQL query writing reference
- ../infrahub-common/infrahub-yml-reference.md —.infrahub.yml project configuration
- ../infrahub-check-creator/SKILL.md — Automated pipeline checks (for enforcement)
- ../infrahub-transform-creator/SKILL.md — Transforms for scheduled report artifacts
- rules/ — Individual rules organized by category prefix