The Deterministic AI Database Context Compiler for Claude Code, Cursor, Windsurf, Codex, and Copilot.
Modern AI coding agents (Claude Code, Cursor, GitHub Copilot, Codex) struggle with production databases:
- Raw
pg_dumpSQL dumps waste 10,000+ tokens of precious context window. - Cluttered DDL dumps introduce noisy system metadata and lock definitions.
- LLMs hallucinate non-existent foreign keys (e.g. guessing
orders.customer_idwhen the column isorders.user_id), creating broken multi-tableJOINs.
Schemap solves this. Schemap is a high-speed CLI compiler that introspects your database, computes an AI Readiness Score, and outputs clean, token-optimized context maps (schemap_database_context.md, CLAUDE.md, AGENTS.md).
Hero Question: Does Schemap make AI coding agents faster, cheaper, and less error-prone when working with real databases?
To eliminate marketing hype and fabricated numbers, Schemap provides a rigorous, automated Dual-Gate Evaluation Framework (benchmarks/tier1_outcome_benchmark.py) designed to test real LLM reasoning outcomes against seeded databases:
- Controlled Protocol: Same Model · Same Database · Same Task across 3 conditions:
- Mode A: Blind (Zero Context) — Baseline query without schema.
- Mode B: Raw DDL (
pg_dump) — Full CREATE TABLE definitions and constraints. - Mode C: Schemap Compiled Context — Deterministic relationship graph, explicit join paths, and AI readiness rules.
- Dual-Gate Scientific Verification Standard:
- Gate 1 (Syntax & Execution): Query executes cleanly in SQLite without syntax or schema errors.
- Gate 2 (Semantic Dataset Result Match): Query output rows are compared directly against ground-truth datasets on seeded production schemas.
- 10 Real-World Engineering Tasks: Spanning 4 difficulty tiers (Easy, Medium, Hard, Very Hard) across Chinook, Northwind, and Pagila.
- Zero Fake Results Policy: Schemap never substitutes synthetic or simulated passes. When you run the benchmark with your own API key, it generates live empirical results.
# Run the live benchmark across 150 evaluations (10 tasks × 5 runs × 3 modes)
uv run python benchmarks/tier1_outcome_benchmark.py --runs 5See current execution status and task details in TIER1_OUTCOME_REPORT.md.
| Database Schema | Tables | Raw SQL Dump (pg_dump) |
Schemap Context | CLAUDE.md Rules |
Token Reduction |
|---|---|---|---|---|---|
| Chinook | 11 | 995 tokens | 536 tokens | 953 tokens | 46.1% |
| Northwind | 13 | 1,045 tokens | 590 tokens | 999 tokens | 43.5% |
| Pagila (Postgres) | 15 | 1,222 tokens | 673 tokens | 1,054 tokens | 44.9% |
| SaaS E-Commerce | 30 | 2,446 tokens | 516 tokens | 834 tokens | 78.9% |
| Enterprise Scale | 100 | 8,577 tokens | 921 tokens | 1,496 tokens | 89.3% |
| Database Scale | Mean Latency | Median (p50) | Peak RAM | Workflow Impact |
|---|---|---|---|---|
| 10 Tables | 0.52 ms |
0.52 ms |
17.7 KB |
Imperceptible ( |
| 50 Tables | 2.11 ms |
2.08 ms |
47.6 KB |
Imperceptible ( |
| 100 Tables | 3.61 ms |
3.60 ms |
76.4 KB |
Instant ( |
| 1,000 Tables | 43.15 ms |
43.09 ms |
777.7 KB |
Ultra-fast ( |
🔬 Reproduce All Benchmarks: Run
uv run python benchmarks/tier1_outcome_benchmark.py --runs 5or inspect full test methodologies in BENCHMARKS.md.
Using uvx:
uvx schemap-tool doctor --db "sqlite:///app.db"Or install globally via pipx (recommended) or uv / pip:
pipx install schemap-toolAlternative installs:
uv tool install schemap-toolpip install schemap-toolTo update or cleanly remove Schemap anytime:
schemap update schemap uninstall --purge
Audit your database schema for AI compatibility, missing foreign keys, and ambiguous naming:
schemap doctor==================================================
Schemap AI Database Health Check
==================================================
Connection: Connected (39 tables)
Relationships Analyzed: 26
--------------------------------------------------
AI Readiness Score:
[################----] 82/100
Top Diagnostic Insights:
- [High] 4 tables lack explicit foreign key constraints (-10 pts)
- [Med] 12 column names contain ambiguous abbreviations (-8 pts)
--------------------------------------------------
Recommendation: Run `schemap context` to compile AI-ready database context.
==================================================
Compile a clean, token-compressed markdown context file (schemap_database_context.md):
schemap contextGenerate native instruction files for Claude Code (CLAUDE.md), Cursor (.cursorrules), and AI agents (AGENTS.md):
schemap agentsMeasure real-time token compression and compilation speed on your own schema:
schemap benchmarkflowchart LR
A[(PostgreSQL / MySQL / SQLite / Turso / Oracle)] -->|schemap extract| B(Schemap Engine)
B -->|Score & Graph| C{Deterministic Compiler}
C -->|CLAUDE.md| D[Claude Code]
C -->|AGENTS.md / .cursorrules| E[Cursor & Windsurf]
C -->|schemap_database_context.md| F[Copilot / Codex / Prompts]
- Introspect: Extracts table structure, column types, primary keys, and foreign keys locally.
- Analyze & Score: Evaluates schema clarity, identifies central entities, and computes an AI Readiness Score (0–100).
- Compile: Generates structured, token-efficient markdown context and native rule files for your coding assistants.
- 🔒 100% Local-First & Air-Gapped: Your database credentials, data rows, and schema metadata never leave your machine.
- ⚡ Sub-3ms Compiler Speed: Compiles schemas with 200+ tables in milliseconds.
- 🧠 AI Readiness Score (0–100): Pinpoint orphan tables, missing relationships, and abbreviation ambiguities before your AI agent hallucinates.
- 🤖 Multi-Agent Workspace Sync: Instantly creates
CLAUDE.md,AGENTS.md, and.cursorruleswith one command. - 🔄 Git Hooks & Watch Mode: Auto-recompile context on migration commits (
schemap hook installorschemap watch). - 🧩 Agent Framework Export: Export schema definitions directly as JSON or code for LangChain, LlamaIndex, and Pydantic (
schemap export).
| Command | Purpose | JSON Output Flag |
|---|---|---|
schemap doctor |
Run onboarding health check & schema diagnostic | schemap doctor --json |
schemap context |
Compile schemap_database_context.md context map |
schemap context --format=json |
schemap agents |
Generate CLAUDE.md, AGENTS.md, and agent rules |
N/A |
schemap benchmark |
Measure raw SQL vs. Schemap token savings & speed | schemap benchmark --json |
schemap score |
Calculate AI Readiness Score (0–100) & improvement roadmap | schemap score --json |
schemap explain |
Explain table architecture, columns, and relationships | schemap explain <table_name> |
schemap join |
Find foreign key join paths and generate SQL snippets | schemap join <table> <table> |
schemap diff |
Track structural schema changes (+, ~, -) |
N/A |
schemap export |
Export schema as JSON or code for Agent Frameworks | schemap export --format=json |
schemap hook |
Install/manage Git pre-commit hooks for auto-compilation | schemap hook install |
schemap watch |
Watch directory for changes and auto-regenerate context | N/A |
- PostgreSQL (
postgresql://user:password@localhost:5432/my_db) - MySQL (
mysql://user:password@localhost:3306/my_db) - SQLite (
sqlite:///path/to/db.sqlite3) - Turso / Remote libSQL (
libsql://[your-db].turso.io?authToken=[token]) - Oracle (
oracle://user:password@localhost:1521/my_db)
Initialize a lightweight configuration file in your project root:
schemap initExample schemap.yaml:
database:
connection_url: "sqlite:///app.db"
output:
file_path: "./schemap_database_context.md"
domain:
mappings:
cust: "Customer"
tx: "Transaction"
inv: "Invoice"
acct: "Account"For full boilerplate options (table exclusions, descriptions, custom profiles):
schemap init --fullKeep your AI context maps up to date automatically on every migration commit:
name: Schemap CI/CD AI Database Intelligence & Gate
on:
pull_request:
paths:
- 'migrations/**'
- 'alembic/versions/**'
- 'prisma/schema.prisma'
- 'schema.sql'
push:
branches: [main]
paths:
- 'migrations/**'
- 'alembic/versions/**'
- 'prisma/schema.prisma'
jobs:
schemap-gate-and-sync:
name: AI Quality Gate & Agent Rules Sync
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: astral-sh/setup-uv@v3
with:
version: "latest"
- name: 1. Evaluate AI Quality Gate (Blocks PRs on Low AI Readiness)
env:
SCHEMAP_LICENSE_KEY: ${{ secrets.SCHEMAP_LICENSE_KEY }}
DATABASE_URL: ${{ secrets.DATABASE_URL }}
run: uvx schemap-tool gate --min-score 80 --fail-on-breaking
- name: 2. Compile Sanitized AI Context & Agent Rules
env:
SCHEMAP_LICENSE_KEY: ${{ secrets.SCHEMAP_LICENSE_KEY }}
DATABASE_URL: ${{ secrets.DATABASE_URL }}
run: |
uvx schemap-tool context --sanitize
uvx schemap-tool agents --targets claude,cursor,codex --sanitize
- name: 3. Commit and Push Synchronized Agent Rules
if: github.event_name == 'push' && github.ref == 'refs/heads/main'
run: |
git config --global user.name 'github-actions[bot]'
git config --global user.email 'github-actions[bot]@users.noreply.github.com'
git add schemap_database_context.md CLAUDE.md AGENTS.md .cursor/rules/*.mdc
git diff --quiet && git diff --staged --quiet || (git commit -m "chore(ai): auto-update deterministic database context [skip ci]" && git push)Schemap provides a Dual-Engine Licensing Model: an ultra-accessible developer edition for solo engineers and an enterprise intelligence layer for engineering teams.
| Edition | Price | Intended Audience & Capabilities |
|---|---|---|
| Free Community | $0 |
Solo developers, local evaluation, up to 100 tables, full CLI suite. |
| Pro Individual |
$1.99/mo or $29 once
|
Freelancers & solo devs: unlimited tables, LLM enrichment (--enrich), 3 devices. |
| Team Plan |
$19/seat/mo ($15 annual)
|
Engineering teams: CI/CD Quality Gates (schemap gate), PR bot, PII sanitization, seat pooling. |
| Enterprise | Custom | Large orgs: air-gapped on-prem verification, SAML/SSO, SOC 2 pack, SLA. |
# Activate a license key
schemap activate <LICENSE_KEY>
# Verify active license status & device seats
schemap status --verify
# Deactivate device / logout
schemap logoutBuilt with ❤️ for the AI developer community.