Three improvements driven by live wedge testing.
1) Notification title now includes a problem snippet and PSA ticket
suffix when present:
"Escalation from Jane · #12345: Outlook is failing to sync email…"
Replaces the prior "Session escalated by Jane" copy that made every
escalation from the same junior look identical in the bell panel.
Snippet is trimmed to 70 chars with ellipsis. handoff_manager now
passes psa_ticket_id through in the notify() payload so this works
for both /escalate and /handoff entry points.
2) AI enrichment (assessment + enhanced escalation_package) moved to
a FastAPI BackgroundTask. The escalating engineer no longer waits
on 15-25s of Sonnet latency — handoff creation returns as soon as
snapshot, status flip, dual-write, documentation, PSA push, and
notify() are committed. enrich_escalation_async opens its own DB
session, runs both AI calls, updates handoff.ai_assessment +
session.escalation_package, commits, and publishes a new
`handoff_assessment_ready` event on the escalation bus. Frontend
doesn't yet listen for that event — the magic-moment screen still
shows a placeholder ("AI assessment is still generating. Reopen
this view in a few seconds…") which is honest about the state.
Live polling / auto-refresh on the bus event is the natural next
step.
3) ChatSidebar entries now surface the problem summary as a secondary
line and tag PSA-linked sessions with a monospace #ticket badge plus
an "Escalated" pill on in-transit sessions. ChatListItem grew
problem_summary, psa_ticket_id, and status fields; loadChats
populates them from listSessions. The user couldn't tell their own
sessions apart in the sidebar because they all rendered as "New
Chat" with no distinguishing detail — this fixes that for any
session, escalated or not.
Test plan
- Backend full suite: 1103 passed in 255.85s with -n auto.
- Frontend tsc -b clean.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Troubleshooting Decision Tree - Backend API
FastAPI backend for the Troubleshooting Decision Tree application.
Quick Start
1. Set up Python environment
cd backend
python -m venv venv
# Windows
venv\Scripts\activate
# macOS/Linux
source venv/bin/activate
pip install -r requirements.txt
2. Start PostgreSQL database
Using Docker:
docker-compose up -d
Or install PostgreSQL locally and create a database:
CREATE DATABASE decision_tree;
3. Configure environment
Copy the example env file and update as needed:
cp .env.example .env
4. Run database migrations
alembic upgrade head
5. Start the server
uvicorn app.main:app --reload --host 0.0.0.0 --port 8000
The API will be available at:
- API: http://localhost:8000
- Docs: http://localhost:8000/api/docs
- ReDoc: http://localhost:8000/api/redoc
API Endpoints
Authentication
POST /api/v1/auth/register- Register new userPOST /api/v1/auth/login- Login (form data)POST /api/v1/auth/login/json- Login (JSON body)POST /api/v1/auth/refresh- Refresh tokenGET /api/v1/auth/me- Get current userPOST /api/v1/auth/logout- Logout
Trees
GET /api/v1/trees- List all treesGET /api/v1/trees/categories- List categoriesGET /api/v1/trees/search?q=query- Search treesGET /api/v1/trees/{id}- Get specific treePOST /api/v1/trees- Create tree (engineer/admin)PUT /api/v1/trees/{id}- Update tree (engineer/admin)DELETE /api/v1/trees/{id}- Delete tree (admin)
Sessions
GET /api/v1/sessions- List user's sessionsGET /api/v1/sessions/{id}- Get specific sessionPOST /api/v1/sessions- Start new sessionPUT /api/v1/sessions/{id}- Update sessionPOST /api/v1/sessions/{id}/complete- Complete sessionPOST /api/v1/sessions/{id}/export- Export session
Development
Create new migration
alembic revision --autogenerate -m "description"
Run migrations
alembic upgrade head
Rollback migration
alembic downgrade -1
Project Structure
backend/
├── alembic/ # Database migrations
│ └── versions/
├── app/
│ ├── api/
│ │ ├── endpoints/ # API route handlers
│ │ ├── deps.py # Dependencies (auth, etc.)
│ │ └── router.py # Main router
│ ├── core/
│ │ ├── config.py # Settings
│ │ ├── database.py # DB connection
│ │ └── security.py # JWT, password hashing
│ ├── models/ # SQLAlchemy models
│ ├── schemas/ # Pydantic schemas
│ └── main.py # FastAPI app
├── tests/
├── alembic.ini
├── docker-compose.yml
├── requirements.txt
└── README.md