Five gates wrap every prompt and every output. Full audit trail. Cost ceiling per project. Drift, secret, and citation guards — built so your engineering org can adopt AI without the legal, security, and observability nightmares.
Built by engineers who've shipped inside Fortune-500 enterprises and regulated fintechs.
Designed against the controls real enterprises actually run
The contrarian frame
Most "AI coding tools" race to fix forgetting. None of them give your CTO an audit trail, a cost ceiling, or a way to know the model didn't drift off-spec last Tuesday. That's why AI-generated code rarely makes it past compliance review.
G1 audit. G2 prompt-quality. G3 citation. G4 drift. G5 railguard. Five layered checks that your team never has to write themselves — battle-tested, cached, and circuit-breaker-resilient.
| ts | gate | verdict | actor | ledger |
|---|---|---|---|---|
| 14:02:11 | G1 | pass | manjeet@ | #34,221 |
| 14:02:12 | G2 | pass | manjeet@ | #34,222 |
| 14:02:13 | G3 | pass | manjeet@ | #34,223 |
| 14:02:13 | G4 | soft_flag | manjeet@ | #34,224 |
| 14:02:14 | G5 | pass | manjeet@ | #34,225 |
| 14:02:14 | · | approve | composer | #34,226 |
Every prompt, every output, every gate verdict — recorded once, idempotently, with a deterministic dedup key. Pull a per-project audit pack on demand for legal, security, or board review.
Cosine similarity over a rolling 50-output baseline. When tone, scope, or style drifts past tolerance, the rail soft-flags or blocks before bad code lands in your tree.
Live demo · loop
Every prompt produces a verdict trail, an audit row, and a cost line — in under a second.
The five gates
Stops off-mission prompts before they spend a single token. Filters intent against the project's allowed scope.
Catches vague prompts that produce hallucinated code. Heuristic + LLM-judge rescue with branded composer feedback.
Verifies every file path, function, and symbol the model cites actually exists in your codebase. Path safety + semantic grading.
Detects output style or scope drifting from a rolling 50-output baseline. Cosine similarity over output embeddings.
Blocks secrets, dangerous file writes, and path traversal at the boundary. Pattern + rule layered, fail-closed by default.
Instead of a cryptic error, the rail returns an LLM-composed explanation injected into your dev's editor — a clear, on-brand reason and a corrective next step.
Integrations · BYOLLM
CTO Rail sits between any AI coding client and any LLM provider — vendor-neutral by design.
Side-by-side
Memory plugins help a developer remember. CTO Rail helps an engineering org govern.
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Raw AI assistant
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Memory plugins
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★ winner
CTO Rail this page
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Cross-session memory
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Audit trail for compliance
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Per-project cost ceiling
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Drift detection
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Citation grading
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Secret + path guards
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Bring-your-own LLM
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vendor-locked | vendor-locked | Any provider |
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Multi-tenant SaaS-ready
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n/a | Architected | |
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0/8
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1/8
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8/8
verdict
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Hover a row to see the rail's win light up · architected = on the roadmap, see Integrations.
Principles · how we think
Six conviction rules. Every decision in CTO Rail traces back to one of them.
When a gate is uncertain, the answer is block. Better a developer rephrases than ships un-audited code.
The audit trail is the product. Every prompt, every output, every verdict — written once, deterministically, with a dedup key.
Any LLM. Any data plane. Any IDE. Protocol-based ports. Hooks, not lock-in.
Every gate verdict ships with its dollars. You can't govern what you can't price.
Built for the room nobody invites you to — the SOX audit, the board review, the 2 a.m. compliance call. Against the controls, not around them.
If a gate blocks, the dev sees why, where, and what to fix — composed in plain English, on-brand, in their editor.
Book a 30-minute demo. We'll wire CTO Rail against your codebase live, run a prompt through all five gates, and walk you through the audit trail.
| Service | Status |
|---|---|
| 30-min Demo | Boarding |
| Architecture deep-dive | Boarding |
| 2-week paid pilot | Open · 2 slots |
Contact · let's talk
Tell us what you're trying to ship safely. We respond within 24 hours.