
Why Client-Side Auth Is Not Access Control
Understand why route guards and hidden controls cannot enforce access, then place authorization at the server operation that needs it.
Read LyraShield AI research and practical guidance on securing AI-built apps, interpreting security evidence, verifying findings, and retesting fixes.

Understand why route guards and hidden controls cannot enforce access, then place authorization at the server operation that needs it.

Treat Worker bindings as capabilities, keep secrets encrypted, constrain outbound fetch and caching, and verify routes with production-shaped Wrangler config.

Set Codex sandbox, approval, network, environment, and MCP boundaries, then verify code changes before any release action.

Isolate coding agents with disposable workspaces, minimal mounts, non-root execution, resource limits, and explicit outbound network policy.

Remove unsafe shell boundaries from agent tools, constrain process arguments, and isolate the external commands that remain necessary.

Replace wildcard or reflected origins with a minimal browser-sharing policy, correct credential handling, and cache-safe headers.

Treat critical severity as a triage input: confirm scope and exposure, contain credible risk, preserve evidence, fix, and run a fresh retest.

Protect cookie-authenticated state changes with framework controls or verified tokens, plus SameSite and Fetch Metadata layers.

Review Cursor data handling, project rules, dependencies, app controls, agent permissions, and independent evidence before launch.

Stop production errors from exposing stack traces, paths, queries, and framework internals while preserving useful, access-controlled diagnostics.