DevPulse — The Solo Developer's On-Call Engineer

Autonomous incident-response agent that does the first 20 minutes of triage for you. Built on Gemini 3 · Google Cloud Agent Builder · Dynatrace MCP · Firebase · Slack.

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How it works

Dynatrace detects anomaly
        │
        ▼
Webhook Receiver (Cloud Function)
  → creates incident in Firestore
  → invokes Agent Builder agent
        │
        ▼
Agent (Gemini 3 via Agent Builder)
  Phase 1: Observe   → Dynatrace MCP (problem, entities, metrics, logs)
  Phase 2: Correlate → GitHub tool  (recent commits, diffs)
  Phase 3: Hypothesize → writes hypothesis to Firestore
  Phase 4: Recommend → posts to Slack with Approve/Reject buttons
        │
        ▼
Developer approves on phone (Slack) or dashboard
        │
        ▼
Agent executes rollback → monitors Dynatrace until resolved
        │
        ▼
Incident closed · post-mortem written to Firestore

The dashboard (Next.js) streams reasoning steps from Firestore in real time — so you can watch the agent think.

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Repository layout

devpulse/
├── apps/
│   ├── dashboard/          Next.js incident UI (Cloud Run)
│   ├── demo-api/           Deliberately breakable Express API (Cloud Run)
│   ├── slack-bridge/       Slack Bolt Cloud Function
│   └── webhook-receiver/   Dynatrace webhook Cloud Function
├── agent/
│   ├── system-prompt.md    Agent playbook
│   ├── tools.json          Tool catalog for Agent Builder
│   └── scenarios/          Scripted test incidents
├── tools/
│   └── github-mcp/         Custom GitHub MCP server
└── infra/
    └── deploy.sh           One-command deploy

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Quick start (local dev)

1. Prerequisites

• Node.js 20+
• Google Cloud CLI (gcloud)
• Firebase project (Firestore in Native mode)
• Dynatrace SaaS account
• Slack app with bot token

2. Clone and install

git clone https://github.com/YOUR_USERNAME/devpulse.git
cd devpulse

3. Configure environment

# Dashboard
cp apps/dashboard/.env.local.example apps/dashboard/.env.local
# Fill in your Firebase SDK values

# Backend services — create a root .env
cp .env.example .env
# Fill in all values

4. Run the dashboard

cd apps/dashboard
npm install
npm run dev
# → http://localhost:3000

5. Run the demo API

cd apps/demo-api
npm install
npm start
# → http://localhost:8080

6. Trigger a demo incident (no Dynatrace needed locally)

Open the dashboard → click Replay Scenario → pick a scenario → watch the reasoning trace stream in.

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Deploy to Google Cloud

# Set env vars first (see .env.example)
source .env
chmod +x infra/deploy.sh
./infra/deploy.sh YOUR_GCP_PROJECT_ID us-central1

After deploy, the script prints the URLs you need to paste into:

• Dynatrace → Settings → Problem notifications → Webhook URL
• Slack app → Interactivity & Shortcuts → Request URL

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Environment variables

See .env.example at the repo root for a complete list with descriptions.

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License

MIT test test deployment