Skill Claude CodeCodex
MoonBit code generation and packaging best practices. Use when writing MoonBit code to avoid common AI mistakes with syntax, tests, and benchmarks, or when defining and publishing a Wasm executable with SKILL.md for the MoonBit Skills Marketplace.
Skill Claude CodeCodex
Plan and execute language-to-language server or application migrations with behavior parity. Use when porting modules, services, APIs, or runtimes between programming languages; generating source-runtime oracles and fixtures; generating migrated parity tests; detecting runtime, standard-library, serialization…
Skill Claude CodeCodex
Migrate a TypeScript codebase to MoonBit on the js target while keeping the same JavaScript API contract, using mizchi/js (JS/Web/Node bindings), mizchi/x (cross-target async backend: process/fs/http/ws), and mizchi/npmtyped (npm bindings). Use when porting a TS library, Node service, npm package, or Cloudflare Worker…
Skill Claude CodeCodex
Methodology for iteratively improving agent-facing instructions (skills / slash commands / CLAUDE.md / code-gen prompts) via bias-free executor + two-sided evaluation (self-report + instruction-side metrics). Meta-skill, invoke ONLY when the user explicitly asks for an "empirical" eval of a prompt or skill, or for the…
Skill Claude CodeCodex
A repository analysis guide that extracts domain terms, industry language, internal product vocabulary, implementation maps, technical structure, and onboarding diagrams. It can work across repositories or a GitHub organization.
Skill Claude CodeCodex
Japanese-language style guide and AI-tone detection rubric for mizchi-authored blog posts (zenn / dev.to). Includes a subagent dispatch procedure that scores a draft on two axes — looks-like-mizchi vs sounds-AI-generated. Use after drafting an article during the style-matching revision loop.
Skill Claude CodeCodex
Meta-skill for auditing and rewriting SKILL.md description fields per the agentskills.io optimizing-descriptions framework, layered with mizchi's two-track trigger policy (Meta = explicit-invoke-only, Project = pushy auto-trigger). Invoke ONLY when the user explicitly asks to "optimize a skill description," "audit…
Skill Claude CodeCodex
Pair "what failed first" with "what finally worked" and codify the should-have-known-it insight as an ast-grep rule, a skill, or a CLAUDE.md rule. Meta-skill: invoke ONLY when the user explicitly says "codify today's lessons," "make it a skill," "drop it into lint," or asks to extract a reusable rule from a…
Skill Claude CodeCodex
Use ONLY when the user explicitly asks to discover or evaluate a skill from OUTSIDE the curated catalog — e.g., "find a Stripe skill", "is there a skill for X?", "evaluate this candidate before adopting". Meta-skill, complementary to skill-selector: do NOT auto-invoke on routine apm-management, project-init, or…
Skill Claude CodeCodex
Meta-skill for picking project skills via APM. Invoke ONLY when the user explicitly asks to set up apm.yml, choose which skills a project needs, or evaluate a catalog match — do NOT auto-invoke on routine project-init or apm-management tasks. Two-phase: pick from a curated catalog first; only escalate to broader…
Skill Claude CodeCodex
Evaluate the reproducibility of technical articles. Dispatch a subagent to simulate a first-time reader reproducing the work locally and list missing information. Use as the final check on a draft before publication.
Skill Claude CodeCodex
Use when iterating on a skill's prompt with the waxa CLI (https://github.com/mizchi/skills/tree/main/tools/waxa) — authoring scenarios, choosing graders, interpreting unclear-points, advancing a ledger, and judging convergence. Encodes the four-stage iteration pattern observed in real iter loops (structural fix →…
Skill Claude CodeCodex
Use when embedding @mariozechner/pi-coding-agent as a coding-agent runtime in Node scripts, writing pi extensions (plugins) with pi.registerTool / pi.registerCommand / pi.on, packaging and pi install from npm/git, or picking between the SDK and pi --mode rpc for non-Node hosts. Covers session setup, the cwd × tools…
Skill Claude CodeCodex
Use when setting up Node 24+ built-in node:sqlite with the loadable sqlite-vec extension for vector / RAG storage in TypeScript without better-sqlite3, or when debugging vec0 BigInt rowids, vitest hanging on sqlite-vec, .ts import errors under node:sqlite, or "sqlite extension not loadable". Covers extension loading…
Skill Claude CodeCodex
Static lint for sqlc-style SQL catalogs. Catches duplicate query names, missing semicolons, SELECT , double-wildcard LIKE, and other cheap-but-easy-to-miss mistakes. Optional sqlfluff integration for full style coverage.
Skill Claude CodeCodex
Run EXPLAIN QUERY PLAN against every query in a sqlc-style catalog and diff the plans against a baseline. Detects new full-table SCANs and TEMP B-TREE sort scans introduced by PRs. SQLite/D1-only today; engine extension noted below.
Skill Claude CodeCodex
Index coverage and N+1 review aids for SQLite/D1 schemas with a sqlc catalog. Surfaces unused indexes (with FK CASCADE awareness so cascade-load-bearing indexes are not flagged), queries that scan tables without index help, and for-loops calling generated SQL fns.
Skill Claude CodeCodex
SQL injection screening for host code (MoonBit / TS / Rust) plus secretlint setup notes. Flags single-line template-literal or string-concat SQL builders, regardless of value source — the scanner is line-based and does NOT trace data flow, so a clean scan is not proof of safety (multi-line template literals are…
Skill Claude CodeCodex
Post-generation safety checks for sqlc-gen-moonbit + Cloudflare D1. Use when a MoonBit Worker uses sqlc-gen-moonbit and you need to gate against BigInt-bind hangs (D1 1101) and SQL placeholder mix.
Skill Claude CodeCodex
Use when running Playwright via terminal CLI — npx playwright test (test runner), codegen (interactive recording), screenshot / pdf (one-off captures), and CI sharding. NOT for agent-driven real-time browser control (use claude-in-chrome MCP tools for that).
Skill Claude CodeCodex
Best practices and reference for Playwright Test (E2E). Covers how to write tests, avoiding fixed waits, network triggers, DnD, shard/retry setup on GitHub Actions, and more. Use when writing, reviewing, or configuring CI for Playwright tests.
Skill Claude CodeCodex
Reference for APM (Agent Package Manager) — apm.yml syntax, install / uninstall / update commands, target detection, lockfile workflow. Read when you need exact field names, but do NOT auto-invoke on every apm-related task; user prompts about projects with installed skills can be handled with general APM knowledge.…
Skill Claude CodeCodex
Operate ast-grep as a project lint tool. Covers sgconfig.yml, fix/rewrite rules, constraints, transform, testing, and CI. Use when writing rules ast-grep can express but general-purpose linters cannot.
Skill Claude CodeCodex
Meta-skill for mizchi's chezmoi dotfiles. Invoke ONLY when the user explicitly asks to manage / diff / apply chezmoi sources, add a skill to dotfiles, audit the APM vs chezmoi boundary, or initialize a new machine. Covers source location, diff/apply flow, skill addition, pre-push (pkfire + secretlint). Do NOT…