GitHub AppCI/CDAutomationDevOpsWebhooks

Nudger Bot

Nudger Bot

TYPE

web

DURATION

1 Day

COMPLETED

December 2025

LANGUAGE

TypeScript

MISSION BRIEF

Nudger Bot is a purpose-built GitHub App designed to solve a common CI/CD reliability issue faced by teams using platforms like Vercel, Netlify, and Railway. These platforms often ignore deployment triggers initiated by non-owner collaborators for security reasons, causing merged code to go undeployed. Nudger Bot works as a trusted relay: it monitors push events on critical branches and, when necessary, creates a minimal follow-up commit under its own authorized bot identity. This ensures every valid merge reliably triggers a deployment without requiring repository owners to re-commit changes manually.

VISUAL_EVIDENCE

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CORE FEATURES

  • Guaranteed CI/CD trigger for collaborator commits
  • Acts as a trusted intermediary for static hosting platforms
  • Supports platforms like Vercel, Netlify, and Railway
  • Monitors push events on critical branches (e.g. main)
  • Creates minimal, non-breaking bot-authored commits
  • Prevents infinite deployment loops
  • Works transparently with existing workflows
  • No manual re-commits required by repository owners
  • Secure GitHub App authentication
  • Repository-level installation and configuration

TECH STACK

  • >GitHub App architecture with scoped permissions
  • >Webhook listener for push and merge events
  • >Bot-authored commits using GitHub App tokens
  • >Branch filtering and author verification logic
  • >Loop prevention using commit metadata and flags
  • >Minimal file mutation strategy (timestamp-based commits)
  • >Stateless event handling for scalability
  • >Secure secret management for app credentials
  • >Event-driven CI/CD trigger relay design

Operational Hurdles

CI/CD platforms ignoring builds triggered by collaborators

SOLUTION_PROTOCOL: Introduced a trusted bot identity that performs the final commit, ensuring deployment hooks always fire

Avoiding infinite commit and deployment loops

SOLUTION_PROTOCOL: Implemented internal checks to detect and ignore bot-authored commits

Ensuring bot commits never interfere with application logic

SOLUTION_PROTOCOL: Restricted changes to a minimal, non-functional file update to guarantee zero side effects

Balancing security with automation flexibility

SOLUTION_PROTOCOL: Used GitHub App–scoped permissions and token-based authentication to limit access strictly to required actions