xla

Review an XLA pull request with deep expertise in HLO optimizations, GPU backend, Triton codegen, autotuner, and AMD/ROCm parity. Use when asked to review an XLA PR or check an XLA change.

Given fresh review findings (from a prior review skill) and a PR number, fetch previous Claude inline comments, cross-reference findings, and update the PR in a thread-aware way. Resolves addressed issues, replies to active threads, and posts only genuinely new findings as new inline comments. Never posts the same issue twice.