Ship faster across your whole codebase, without Architectural Drift.
Your engineers move fastest when AI understands the whole system they are changing, every connected service and contract around the file they touch. StackRails models all your systems as an Architecture Graph and holds every AI coding agent, whether Claude Code, Copilot, Cursor or Codex, to your coding standards before code reaches main.
Your AI coding tools are blind to your code and architecture.
The agent isn't stupid. It's blind. It doesn't know your services, your libraries, your auth, your event bus, or the patterns your senior engineers already write. So it invents them.
- 01
No architecture awareness
The agent sees the repo it works in, not the system. It can't fit code to services and contracts in repos it has never seen.
- 02
No policy awareness
It doesn't know your security, naming, or technology standards, so it can't follow them.
- 03
No dependency awareness
It can't tell you that a change breaks three callers in other repos, until production does.
Three blind spots, one result: code that drifts from the system it was supposed to fit. We call it Architectural Drift.
Industry data
- 96%of developers don't fully trust AI-generated code. Only 48% verify it.Sonar State of Code, 2026. 1,100+ developers surveyed.
- 1.7×more issues in AI-written pull requests than in human-written ones.CodeRabbit, December 2025. 470 PRs analyzed.
- 2.74×more security vulnerabilities in AI-generated code.CodeRabbit, December 2025. Same study.
Your teams already teach AI your architecture. One repo at a time.
Rules files get copied across repos and drift apart. StackRails brings your rules and architecture into one map, so your AI coding agents work from the same source.
Context rot: in a long session, the file fades.
As a session grows, the agent can lose track of rules it read early on. Researchers call this context rot. And one file can only hold the summary someone wrote, not your whole system.
When the agent asks, StackRails gives it the rules and architecture for the code it is working on. StackRails then checks the code against your rules and reports what breaks one.
- 01
Files drift across repos
Rules get copied, forgotten and contradicted from one repo to the next.
- 02
Files fade in long sessions
A rules file holds a summary, and in a long session the agent can lose track of it.
- 03
One source, checked both ways
StackRails gives context before the agent writes, then checks the code against your rules and reports what breaks one, on the pull request too.
Velocity comes from context.
Impact analysis
Before a change ships, the Architecture Graph maps the full dependency chain across repos, so your team knows what a change touches before production finds out.
Cross-service context
Every agent references the real API contracts, events, and data models of the services around the file, so generated code fits the system instead of inventing it.
Architecture diff
See how a change moves the architecture itself, so you catch drift while it is still cheap to fix.
Free. Yours either way.See it on a real codebase. Thirty minutes.
Live walkthrough of StackRails, the three checks, and the two-tier authorization model on a real codebase. Founder-led for first customers. Response inside one business day.