@n8n/tournament

This is a modern rewrite of riot's template engine that maintains API compatibility while updating the implementation. In practice, it works reliably for basic string interpolation and template rendering tasks. The Apache-2.0 license is clear and the codebase is relatively small, making it easier to audit.

From a security perspective, there are concerns. The package doesn't provide clear documentation on how it handles untrusted input or HTML escaping strategies. Testing with user-supplied data requires careful manual validation since the library doesn't seem to enforce secure-by-default escaping. Error messages can be verbose and may leak template structure details, though not typically sensitive data. The dependency footprint is minimal which reduces supply chain risk, but the lack of active CVE disclosure history or security policy documentation is concerning for production use.

For teams already using riot templates, this provides a compatible alternative. However, if you're starting fresh and security is a priority, more established templating engines with explicit XSS protection and security-focused documentation would be safer choices.

This is a rewrite of riot's template engine, focused on compatibility. In daily use, it handles basic template interpolation and expressions well enough for trusted content. The API is straightforward - you parse templates and evaluate them with context data. Performance is acceptable for typical workflow automation scenarios.

From a security perspective, there are notable concerns. The library executes arbitrary JavaScript expressions embedded in templates without built-in sandboxing or CSP considerations. If you're templating user-controlled content, you're essentially running eval() with extra steps. There's minimal input validation on template expressions, and error messages can leak variable names and context structure. The documentation doesn't adequately warn about XSS risks or provide guidance on safe usage patterns.

Dependency-wise, it's lightweight with few transitive dependencies, which reduces supply chain exposure. However, the small maintainer footprint (n8n-specific fork) raises concerns about security patch response time. No public CVE history yet, but the library hasn't been widely scrutinized. TLS/crypto aren't applicable here, but the lack of secure-by-default principles is evident in how it handles template execution.

This is a lean template engine maintaining compatibility with riot's tmpl syntax while being minimally invasive. In production, it's essentially just string interpolation with basic expression evaluation - no fancy features, no bloat. The runtime performance is solid with negligible memory footprint since templates compile to simple functions.

The biggest operational concern is the complete absence of logging hooks or error context. When templates fail (usually from undefined variables or syntax errors), you get generic JavaScript errors with no indication of which template or line caused the issue. There's no configuration for error handling behavior, no retry semantics (not applicable here), and no built-in escaping helpers which means you're managing XSS prevention manually.

For simple use cases like generating email templates or configuration files in build pipelines, it works fine. But in high-volume production scenarios, the lack of observability becomes painful during debugging. No timeout controls exist, though template execution is synchronous and fast enough that it's rarely an issue unless you're doing something unusual in template expressions.