Files
dd0c/products/05-aws-cost-anomaly/package.json
Max Mayfield 6f692fc5ef Scaffold dd0c/cost: Welford baseline, anomaly scorer, governance engine, tests
- Welford online algorithm for running mean/stddev baselines
- Anomaly scorer: z-score → 0-100 mapping, property-based tests (10K runs, fast-check)
- Governance engine: 14-day auto-promotion with FP rate gate, injectable Clock
- Panic mode: defaults to active (safe) when Redis unreachable
- Tests: 12 scorer cases (incl 2x 10K property-based), 9 governance cases, 3 panic mode cases
- PostgreSQL schema with RLS: baselines (optimistic locking), anomalies, remediation_actions
- Fly.io config, Dockerfile
2026-03-01 02:52:53 +00:00

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{
"name": "dd0c-cost",
"version": "0.1.0",
"private": true,
"type": "module",
"scripts": {
"dev": "tsx watch src/index.ts",
"build": "tsc",
"start": "node dist/index.js",
"test": "vitest run",
"lint": "eslint src/ tests/"
},
"dependencies": {
"fastify": "^4.28.0",
"@fastify/cors": "^9.0.0",
"pg": "^8.12.0",
"ioredis": "^5.4.0",
"zod": "^3.23.0",
"jsonwebtoken": "^9.0.2",
"pino": "^9.1.0",
"uuid": "^9.0.1",
"@aws-sdk/client-cost-explorer": "^3.600.0",
"@aws-sdk/client-cloudtrail": "^3.600.0",
"@aws-sdk/client-dynamodb": "^3.600.0",
"@aws-sdk/lib-dynamodb": "^3.600.0",
"@slack/web-api": "^7.1.0"
},
"devDependencies": {
"typescript": "^5.5.0",
"tsx": "^4.15.0",
"vitest": "^1.6.0",
"fast-check": "^3.19.0",
"@types/node": "^20.14.0",
"@types/pg": "^8.11.0",
"@types/jsonwebtoken": "^9.0.6",
"@types/uuid": "^9.0.8",
"eslint": "^9.5.0"
}
}