jinja-expert

What problem does it solve?

This skill helps developers author, read, and debug Jinja2 templates across the three places Jinja lives in 2026 — HuggingFace chat-template templates, Ansible playbooks, and Kubernetes workflows that embed Jinja around Go templates. It provides a concise map of the dialect differences and practical patterns to write safe, portable templates that render deterministically and survive engine quirks.

Core Features & Use Cases

• Defensive patterns for cross-domain templating (namespace(), raise_exception, content-type guards) that prevent loop-scope leakage and tool-call misrendering.
• Dialect-disambiguation guidance for HF chat templates, Ansible Jinja, and Helm-Go templates, including how to render values.yaml.j2 and Kubernetes manifests without conflating Go templates.
• Debugging and parity techniques, including in-template debugging, engine-render parity checks, and reference to real-world incidents to illustrate common pitfalls.

Quick Start

Render a chat-template for a given messages payload using apply_chat_template and verify loop-scope, content-coercion, and tool-call handling across both string and dict argument shapes.