Execute behavior-faithful ports from Go, Rust, or similar languages into Crystal by translating APIs and tests while preserving upstream semantics and outputs.
Initialize a Crystal project for language-porting work by creating baseline project structure, adding upstream as a git submodule, wiring quality gates, and documenting…
Orchestrate Bubble Tea Go-vs-Crystal parity work by routing to teatest/golden generation, Crystal verification, and fallback byte diagnostics.
Verify Crystal Bubble Tea output against golden files using Crystal teatest/golden libraries.
Implement example-level Go-to-Crystal Bubble Tea parity by matching model/update/view behavior and deterministic harness inputs.
Track source-to-Crystal parity by generating inventories of source API and tests, validating drift, and seeding backlog work from missing coverage.
Evaluate and select Crystal shard dependencies for a project by searching candidate libraries, comparing maintenance and fit, and applying the chosen dependency to shard.yml.
Generate/update golden outputs from Go Bubble Tea tests using Charm teatest/golden libraries.
Set up or retrofit a repository with Crystal Forge meta-structure by creating CLAUDE.md/AGENTS.md, core docs, and baseline project conventions.
Optimize Crystal code for performance by identifying hot code paths first, validating benchmark or profiling infrastructure, comparing against a clean baseline, and keeping only…
Use this skill in Crystal projects whenever code under ./lib (installed shards) is modified to preserve Go parity or fix shard behavior.