Sentinels

Sentinels are proactive monitors that continuously watch your operational data for emerging risks and revenue opportunities. They run as structured reads on the operational graph with near-zero AI cost at detection. Thresholds, exclusion filters, and result limits are all configurable per tenant. See GET /sentinels/registry for active sentinel IDs and current defaults.

Sentinel types

Operational (13 sentinels)

Sentinel	What it detects
`engineer_performance_slip`	Engineers whose completion rates or SLA punctuality have degraded
`site_deterioration`	Sites with increasing fault frequency or repeat visits
`sla_breach_cluster`	Concentrated SLA breaches by geography, engineer, or customer
`scheduling_drift`	Growing gaps between job creation and completion
`repeat_visit_spike`	Abnormal repeat visit rates for specific job types or sites
`first_time_fix_decline`	Drop in first-time-fix rates by engineer or job category
`response_time_degradation`	Increasing time between job raised and first attendance
`workload_imbalance`	Uneven job distribution across engineers
`completion_rate_drop`	Falling job completion rates
`customer_complaint_pattern`	Emerging complaint clusters
`equipment_failure_trend`	Recurring equipment failures at specific sites
`certification_gap`	Engineers approaching or past certification expiry
`data_quality_alert`	Missing or inconsistent data in recent job records

Growth opportunity (6 sentinels)

Sentinel	What it detects
`dormant_customer`	Customers with no recent activity who may be ready for re-engagement
`overdue_service_interval`	Equipment or sites past their recommended service interval
`single_service_cross_sell`	Customers using only one service line, cross-sell candidates
`engineer_flagged_follow_up`	Follow-on work flagged by engineers in job notes
`seasonal_buying_pattern`	Historical patterns suggesting upcoming demand
`geographic_upsell_cluster`	Concentration of existing customers near prospects

POST /sentinels/run

Execute one or more sentinels against your data and return current results. Request body:

Field	Type	Required	Description
`company_id`	string	Yes	Your tenant identifier
`api_key`	string	Yes	Your tenant API key
`sentinel_ids`	object	No	Specific sentinels to run (omit to run all)

curl -X POST "https://api.vh3connect.io/api:kP8T1CK7/sentinels/run" \
  -H "Content-Type: application/json" \
  -d '{
    "company_id": "your-company-id",
    "api_key": "your-api-key",
    "sentinel_ids": ["site_deterioration", "engineer_performance_slip"]
  }'

To run all sentinels, omit sentinel_ids:

curl -X POST "https://api.vh3connect.io/api:kP8T1CK7/sentinels/run" \
  -H "Content-Type: application/json" \
  -d '{
    "company_id": "your-company-id",
    "api_key": "your-api-key"
  }'

POST /sentinels/run/

Run a single named sentinel. Path parameters:

Param	Type	Required	Description
`sentinel_id`	string	Yes	Sentinel identifier (from tables above)

Request body:

Field	Type	Required	Description
`company_id`	string	Yes	Your tenant identifier
`api_key`	string	Yes	Your tenant API key

curl -X POST "https://api.vh3connect.io/api:kP8T1CK7/sentinels/run/dormant_customer" \
  -H "Content-Type: application/json" \
  -d '{
    "company_id": "your-company-id",
    "api_key": "your-api-key"
  }'

GET /sentinels/registry

Returns all available sentinel definitions and their configuration.

curl -G "https://api.vh3connect.io/api:kP8T1CK7/sentinels/registry" \
  --data-urlencode "company_id=your-company-id" \
  --data-urlencode "api_key=your-api-key"

GET /sentinels/results

Returns the latest cached sentinel results for your tenant.

curl -G "https://api.vh3connect.io/api:kP8T1CK7/sentinels/results" \
  --data-urlencode "company_id=your-company-id" \
  --data-urlencode "api_key=your-api-key"

VH3 AI Intelligence

BigChange API

Sentinels

Sentinels

Sentinel types

Operational (13 sentinels)

Growth opportunity (6 sentinels)

POST /sentinels/run

POST /sentinels/run/

GET /sentinels/registry

GET /sentinels/results

​Sentinels

​Sentinel types

​Operational (13 sentinels)

​Growth opportunity (6 sentinels)

​POST /sentinels/run

​POST /sentinels/run/

​GET /sentinels/registry

​GET /sentinels/results

Sentinels

Sentinel types

Operational (13 sentinels)

Growth opportunity (6 sentinels)

POST /sentinels/run

POST /sentinels/run/

GET /sentinels/registry

GET /sentinels/results