name: sql-db-engineer-agent
version: '2.0.0'
description: 'SQL Database Engineer Agent — An OpenEnv environment where AI agents learn to act like senior database engineers. Evolved from SQL Query Debugger (Round 1). Agents manage production databases over 50+ steps: inspecting slow queries, creating indexes, rewriting queries, partitioning tables.'
tags: [openenv, real-world, sql, database, engineering, indexing, reinforcement-learning, long-horizon, world-modeling, self-improvement, wildcard]
hackathon: 'META x PyTorch x SST OpenEnv Hackathon 2026'
domain: 'SQL Database Engineering'

tasks:
  # ── Round 1: SQL Query Debugger (15 tasks — backward compatible) ──

  - id: easy_001
    difficulty: easy
    description: 'Fix SQL syntax error: missing commas in SELECT clause'

  - id: easy_002
    difficulty: easy
    description: 'Fix SQL syntax error: missing WHERE keyword'

  - id: easy_003
    difficulty: easy
    description: 'Fix SQL syntax error: unclosed string literal'

  - id: easy_004
    difficulty: easy
    description: 'Fix SQL syntax error: ORDER used instead of ORDER BY'

  - id: easy_005
    difficulty: easy
    description: 'Fix SQL syntax error: GROUP used instead of GROUP BY'

  - id: medium_001
    difficulty: medium
    description: 'Fix wrong JOIN type: INNER JOIN excludes users with no orders'

  - id: medium_002
    difficulty: medium
    description: 'Fix wrong JOIN condition causing incorrect product associations'

  - id: medium_003
    difficulty: medium
    description: 'Fix aggregation logic: HAVING clause used incorrectly as WHERE'

  - id: medium_004
    difficulty: medium
    description: 'Fix correlated subquery correlating on wrong column'

  - id: medium_005
    difficulty: medium
    description: 'Fix DISTINCT misuse with COUNT causing invalid query'

  - id: hard_001
    difficulty: hard
    description: 'Detect and fix N+1 query pattern with correlated subqueries'

  - id: hard_002
    difficulty: hard
    description: 'Fix function on indexed column preventing index usage'

  - id: hard_003
    difficulty: hard
    description: 'Fix implicit cartesian product from missing JOIN condition'

  - id: hard_004
    difficulty: hard
    description: 'Fix SELECT * in multi-table JOIN causing over-fetching'

  - id: hard_005
    difficulty: hard
    description: 'Fix window function misuse with missing PARTITION BY and ORDER BY'

  # ── Round 2: DB Engineering Scenarios (15 tasks — long-horizon) ──

  - id: easy_s001
    difficulty: easy
    description: 'User lookup query taking 2s on 10K users table — add email index'

  - id: easy_s002
    difficulty: easy
    description: 'Order status query scanning 50K orders — composite index needed'

  - id: easy_s003
    difficulty: easy
    description: 'Product search doing full table scan on 20K products'

  - id: easy_s004
    difficulty: easy
    description: 'Session lookup hitting 15K sessions without index'

  - id: easy_s005
    difficulty: easy
    description: 'Log table filter slow on 30K entries — compound index fix'

  - id: medium_s001
    difficulty: medium
    description: 'E-commerce DB: 50K orders + 8K users, two slow queries'

  - id: medium_s002
    difficulty: medium
    description: 'Blog platform: 100K posts + 20K authors, search and lookup slow'

  - id: medium_s003
    difficulty: medium
    description: 'Inventory: 80K products + 200K stock movements, rewrite + index'

  - id: medium_s004
    difficulty: medium
    description: 'Ticketing system: 60K tickets + 5K agents, status queue slow'

  - id: medium_s005
    difficulty: medium
    description: 'Analytics DB: 150K events + 10K users, funnel query slow'

  - id: hard_s001
    difficulty: hard
    description: 'Financial DB: 500K transactions across 4 tables, 3 slow queries'

  - id: hard_s002
    difficulty: hard
    description: 'SaaS platform: 8-table schema, 200K+ records, dashboard 20s+'

  - id: hard_s003
    difficulty: hard
    description: 'Healthcare: 1M patient records, compliance + clinical queries'

  - id: hard_s004
    difficulty: hard
    description: 'Gaming leaderboard: 2M players, 5M matches, ranking degraded'

  - id: hard_s005
    difficulty: hard
    description: 'Logistics: 6 tables, 3M shipments + 10M tracking records'

action_space:
  type: discrete
  actions:
    - identify_error
    - propose_fix
    - submit_answer
    - request_hint
    - explain_issue
    - optimize_query
    - inspect_query
    - analyze_indexes
    - create_index
    - rewrite_query
    - add_column
    - drop_index
    - partition_table
    - analyze_statistics
    - submit_report

observation_space:
  type: dict
  fields:
    - task_id
    - task_description
    - current_context
    - step_count
    - difficulty
    - max_steps
    - hints_used
    - previous_actions
    - metadata

reward:
  min: 0.001
  max: 0.999
  type: dense_with_milestones
  description: >
    Dense reward at every step.
    Round 1: partial credit for identification, fixing, explanation quality.
    Round 2: step reward + delta reward (DB performance change) +
    milestone bonuses at 25%/50%/75% improvement + terminal score.

episode:
  max_steps: 50
  termination: 'submit_report (Round 2) or submit_answer/optimize_query (Round 1) or max_steps reached'

api:
  port: 7860
  endpoints:
    - GET  /health
    - POST /reset
    - POST /step
    - GET  /state
    - GET  /tasks
    - POST /grader
    - POST /baseline
    - GET  /progress