systemprompt-database 0.0.11

Database abstraction layer for systemprompt.io supporting SQLite, PostgreSQL, and MySQL
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# systemprompt-database Compliance

**Layer:** Infrastructure
**Reviewed:** 2026-01-21
**Verdict:** COMPLIANT

---

## Checklist

| Category | Status |
|----------|--------|
| Boundary Rules | ✅ |
| Required Structure | ✅ |
| Code Quality | ✅ |
| Production Readiness | ✅ |

---

## Violations

None

---

## Commands Run

```
cargo clippy -p systemprompt-database -- -D warnings  # PASS
cargo fmt -p systemprompt-database -- --check          # PASS
```

---

## Actions Required

None - fully compliant

---

## Changes Made (2026-01-21)

### Code Quality Fixes

| File | Change |
|------|--------|
| `src/repository/entity.rs` | Removed all doc comments (`///`) and module doc comments (`//!`) |
| `src/repository/service.rs` | Removed module doc comment and struct/function doc comments |
| `src/lifecycle/validation.rs` | Removed all doc comments |
| `src/lifecycle/installation.rs` | Removed doc comments and section divider comments |
| `src/admin/query_executor.rs` | Removed all doc comments and inline comment |
| `src/services/display.rs` | Replaced `unwrap_or_default()` with `map_or_else(String::new, ...)` |
| `src/admin/introspection.rs` | Replaced `unwrap_or_default()` with `unwrap_or_else(\|_\| Vec::new())` |
| `src/admin/introspection.rs` | Replaced `unwrap_or(0)` with `u64::try_from(size).unwrap_or(0)` |

### Production Readiness Fixes

| File | Issue | Fix |
|------|-------|-----|
| `src/lifecycle/installation.rs:98-118` | SQL injection in `table_exists` | Used parameterized query with `query_raw_with` |
| `src/lifecycle/installation.rs:254-286` | SQL injection in `validate_single_column` | Used parameterized query with `query_raw_with` |
| `src/repository/entity.rs:131-135` | SQL injection via unvalidated column name | Added column name validation (alphanumeric + underscore) |
| `src/repository/entity.rs:153-157` | SQL injection via unvalidated column name | Added column name validation (alphanumeric + underscore) |
| `src/services/postgres/mod.rs:264-268` | Silent `.ok()` swallowing serialization errors | Replaced with proper error propagation using `map_err` |
| `src/services/postgres/mod.rs:209-218` | Naive `split(';')` breaking on semicolons in strings | Now uses `SqlExecutor::parse_sql_statements()` |
| `src/services/transaction.rs:40-58` | No backoff in retry loop causing thundering herd | Added exponential backoff (10ms * 2^attempt, max 640ms) |

---

## Production Readiness Summary

All critical security and reliability issues have been addressed:

1. **SQL Injection** - All dynamic identifiers now use parameterized queries or strict validation
2. **Silent Errors** - No more `.ok()` patterns that swallow errors silently
3. **Data Integrity** - Proper SQL parsing for batch operations
4. **Reliability** - Exponential backoff prevents retry storms under contention