Managing Cube.dev

Manage and monitor Cube.dev semantic layer — data models, pre-aggregations, queries, and deployments.

Discovery Phase

#!/bin/bash

CUBE_API="${CUBE_API_URL:-http://localhost:4000}/cubejs-api/v1"
AUTH="Authorization: $CUBE_API_TOKEN"

echo "=== Cube Meta (Models) ==="
curl -s -H "$AUTH" "$CUBE_API/meta" \
  | jq -r '.cubes[] | [.name, .type, (.measures | length), (.dimensions | length)] | @tsv' | column -t | head -15

echo ""
echo "=== Cube Measures ==="
curl -s -H "$AUTH" "$CUBE_API/meta" \
  | jq -r '.cubes[:5][] | .measures[] | [.name, .type, .aggType // ""] | @tsv' | column -t | head -15

echo ""
echo "=== Cube Dimensions ==="
curl -s -H "$AUTH" "$CUBE_API/meta" \
  | jq -r '.cubes[:5][] | .dimensions[] | [.name, .type] | @tsv' | column -t | head -15

echo ""
echo "=== Pre-Aggregations ==="
curl -s -H "$AUTH" "$CUBE_API/pre-aggregations" \
  | jq -r '.preAggregations[] | [.preAggregationName, .tableName, .refreshKey, .status] | @tsv' | column -t | head -10

Analysis Phase

#!/bin/bash

CUBE_API="${CUBE_API_URL:-http://localhost:4000}/cubejs-api/v1"
AUTH="Authorization: $CUBE_API_TOKEN"

echo "=== Pre-Aggregation Build Status ==="
curl -s -H "$AUTH" "$CUBE_API/pre-aggregations/jobs" \
  | jq -r '.[] | [.table, .status, .duration // 0, .addedToQueue] | @tsv' | column -t | head -10

echo ""
echo "=== Query Sample (test) ==="
curl -s -H "$AUTH" "$CUBE_API/load" \
  -G --data-urlencode "query=$(echo '{"measures":["Orders.count"],"timeDimensions":[{"dimension":"Orders.createdAt","granularity":"day","dateRange":"last 7 days"}]}' 2>/dev/null)" \
  | jq '{annotation: .annotation, dataLength: (.data | length), slowQuery: .slowQuery}'

echo ""
echo "=== SQL Compilation Check ==="
curl -s -H "$AUTH" "$CUBE_API/sql" \
  -G --data-urlencode "query=$(echo '{"measures":["Orders.count"]}')" \
  | jq '{sql: .sql.sql[0][:100], preAggregation: .sql.preAggregationType // "none"}'

echo ""
echo "=== Pre-Aggregation Partitions ==="
curl -s -H "$AUTH" "$CUBE_API/pre-aggregations/partitions" \
  | jq -r '.preAggregationPartitions[:5][] | [.preAggregationName, (.partitions | length), .refreshKey] | @tsv' | column -t

echo ""
echo "=== API Health ==="
curl -s -H "$AUTH" "${CUBE_API_URL:-http://localhost:4000}/readyz" \
  | jq '.'

Output Format

CUBES (Models)
Name             Type    Measures   Dimensions
<cube-name>      cube    <n>        <n>

PRE-AGGREGATIONS
Name                Table           Status     Refresh Key
<preagg-name>       <table>         <status>   <key>

BUILD JOBS
Table            Status      Duration   Queued
<table>          completed   <ms>       <timestamp>

API HEALTH
Status:          ready
Slow Queries:    <bool>

Anti-Hallucination Rules

1. NEVER assume resource names — always discover via CLI/API in Phase 1 before referencing in Phase 2.
2. NEVER fabricate metric names or dimensions — verify against the service documentation or --help output.
3. NEVER mix CLI commands between service versions — confirm which version/API you are targeting.
4. ALWAYS use the discovery → verify → analyze chain — every resource referenced must have been discovered first.
5. ALWAYS handle empty results gracefully — an empty response is valid data, not an error to retry.

Counter-Rationalizations

Shortcut	Counter	Why
"I'll skip discovery and check known resources"	Always run Phase 1 discovery first	Resource names change, new resources appear — assumed names cause errors
"The user only asked for a quick check"	Follow the full discovery → analysis flow	Quick checks miss critical issues; structured analysis catches silent failures
"Default configuration is probably fine"	Audit configuration explicitly	Defaults often leave logging, security, and optimization features disabled
"Metrics aren't needed for this"	Always check relevant metrics when available	API/CLI responses show current state; metrics reveal trends and intermittent issues
"I don't have access to that"	Try the command and report the actual error	Assumed permission failures prevent useful investigation; actual errors are informative