Deep SQL Rewriting

Blocking a query breaks the application. Rewriting it keeps the application working while eliminating the risk. Safe Boundary can intercept a dangerous SQL statement and modify it on the fly, injecting a LIMIT, adding a WHERE predicate, or stripping a harmful clause, before forwarding a safe version to the database.

Live correction

Rewrites, not just rejections

An unbounded SELECT on a 50-million-row table becomes a bounded query automatically. A DELETE missing a WHERE clause gets a predicate injected or gets blocked based on your policy. The application receives a valid result and never knows a rewrite occurred.

Risky SQL goes in. Safe SQL comes out.

Safe Boundary rewrites dangerous SQL in microseconds, preserving the agent intent while stripping unbounded deletes, mass updates, and cross-tenant reads before the query reaches the database.
Full SQL AST analysis lets the proxy add a WHERE predicate, inject a LIMIT, or scope a JOIN to the caller instead of returning an error. Agents stay productive, data stays protected.
Every rewrite is recorded with the original query, the rewritten query, and the rule that fired. No hidden heuristics, just policies you authored, enforced identically every time.
Engine

Full semantic SQL modeling with static analysis

Safe Boundary maintains a full semantic model of every statement, types, scopes, bindings, table relationships, and execution intent. Static analysis runs over that model, so the proxy reasons about the query before the database ever sees it.

That foundation is what lets us manage even the largest and most complex queries, recursive CTEs, deeply nested subqueries, multi-table joins with intricate predicates, window functions, and generated SQL hundreds of lines long. If it parses, we can model it; if we can model it, we can rewrite it safely.

AI guardrails

Keep AI agents safe without patching the agent

AI-generated SQL is unpredictable by design. Safe Boundary sits between the agent and the database, acting as a semantic guardrail that corrects risky queries without requiring changes to the agent's prompt, code, or model.

Answer without escape

The agent keeps calling SQL the way it always has. Safe Boundary transforms the statement in-flight so unsafe operations never reach the database, no prompt engineering, no agent retraining.

Supervision on inputs

The proxy inspects parameters and literals as well as structure. Detects prompt-injection patterns, anomalous identifiers, and off-tenant references and rewrites them out of the query plan.

Maintain integrity at scale

Policies apply uniformly across every connection. OpenAI, Claude, Copilot, or custom agents. One boundary for every model, every pipeline, every environment.

Configurable rules

Policy-driven rewrite rules

Rewrite logic is defined in the Safe Boundary control plane, not in application code. Rules are scoped by query pattern,
identity, or data classification tag. Changes take effect immediately, with no deployment required on your side.

Visibility

Full audit trail for every rewrite

Every rewrite is logged with the original SQL, the rewritten SQL, the matched policy rule, and the identity that issued the query. You have a complete record of what changed and why.

Every rewrite is captured with the original SQL, the rewritten SQL, the matching policy, and the actor identity.

Full-text search and filter across millions of rewrites, replay a rule against history before you enforce it in production.

Configure your first rewrite rule, no application code changes required.

Free for 1 database. No credit. No Time limit. Full AI SQL Injection prevention.