LLVM 22.x tile for building compilers, language runtimes, and out-of-tree tooling

Implements TUS resumable upload protocol for files >6MB with advisory lock conflict handling.

Enforces strict isolation of service_role key to server-side contexts only.

Comprehensive documentation and best practices for building Terraform providers with terraform-plugin-framework (v1.17.0). Covers providers, resources, schemas, types, validators, testing, and common pitfalls.

Discover and apply best practice skills automatically. Gap analysis scans the codebase, skill-search fills gaps from the registry, skill-classifier separates proactive from reactive skills, quality-standards generates CLAUDE.md guidance, self-review compares code against checklists, and verification-strategy sets up test/lint/typecheck feedback loops.