n8n Workflow: GitHub Bus-Factor Risk with Claude, Tickets & Slack

Detect GitHub “bus-factor” risk automatically—and turn it into Claude-reviewed tickets and Slack updates

This n8n workflow analyzes GitHub push activity, merged pull requests, and contributor baselines to identify repositories/components with elevated bus-factor risk. It batches ownership signals, resolves borderline cases with Anthropic Claude, then creates or updates knowledge-transfer tasks via an HTTP ticketing API and posts a clear summary to Slack.

What this workflow does

• Ingest GitHub signals: Receives GitHub push and pull_request webhooks, and also runs a scheduled GitHub API scan to collect contributor statistics.
• Normalize ownership data: Converts commit/PR activity and contributor stats into a shared “ownership-signal” structure containing repo, component, contributor, and timestamp fields.
• Batch through an external buffer: Sends each normalized ownership signal to an external ownership-buffer API for later batch processing.
• Compute risk weekly: On a weekly schedule, fetches the buffered window and computes metrics such as commit-concentration and active-contributor counts per repo/component.
• Route confident outcomes: Clearly healthy and clearly critical clusters are routed directly.
• Use Claude for ambiguous cases: Borderline clusters are classified by an Anthropic Claude agent as critical-risk or acceptable.
• Create tickets + notify Slack: Merges resolved results, creates/updates critical-risk knowledge-transfer documentation tasks via HTTP API, and posts a summary message to Slack.

Use cases

• SaaS teams monitoring GitHub repositories to prevent “single-person” maintenance risk.
• Automation engineers generating repeatable bus-factor audits without manual spreadsheets.
• Platforms teams triggering knowledge-transfer workstreams when contributors become too concentrated.

Technical details

• GitHub webhooks for push and pull_request events
• HTTP Header Auth using a GitHub PAT for GitHub API access
• Nodes/blocks: if, code, merge, slack, webhook, sticky note
• External ownership-buffer API for batching ownership signals
• Anthropic Claude for classification of ambiguous risk clusters