I was wondering if I am in the right track here. Let $A := k[x,y]/(x^2 - y^3)$, the cuspidal curve. Obviously this isn't etale or smooth over $k$ so its cotangent complex is not contractible. Now, I wish to compute $\mathbb{L}_{A/k}$.
So first we have maps $k \rightarrow k[x,y] \rightarrow A$ which induces the transitivity sequence $$\mathbb{L}_{k[x,y]/k} \otimes_{k[x,y]} A \rightarrow \mathbb{L}_{A/k} \rightarrow \mathbb{L}_{A/k[x,y]}.$$ By Iyengar's notes (http://arxiv.org/pdf/math/0609151.pdf) we know that:
- $\mathbb{L}_{A/k[x,y]} \simeq \Sigma A$
- $\mathbb{L}_{k[x,y]/k} \simeq \Omega_{k[x,y]/k}$
Hence am I right to conclude that Andre-Quillen homology is just $\Omega_{k[x,y]/k} \otimes_{k[x,y]} A$ in degree $0$ and $A$ in degree 1? Thank you!