Coding standards, frameworks, refactoring, and code review (16.7K skills)
Systematic debugging with root cause investigation. Four phases: investigate, analyze, hypothesize, implement. Iron Law: no fixes without root cause.
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Drive an Upstash Box (a remote sandboxed workspace) from the terminal with the `box` CLI. Use when asked to run commands, edit files, clone repos, run builds or tests, publish a public URL, browse or screenshot a page, open a pull request or issue with a screenshot attached, schedule recurring work, run an AI agent, or do any work inside a box rather than on this machine.
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Run the Upstash CLI (`upstash`) from a terminal, shell script, or CI job when no Upstash MCP tools are in the session. Do not load this skill when Upstash MCP tools are available (the Upstash plugin registers mcp.upstash.com) - they already cover creating, listing, renaming, and deleting Redis databases, running Redis commands, usage stats, backups, Vector and Search indexes, QStash schedules and messages, Blob buckets, and Box, so call them directly. Use this skill for shell work the MCP does not do - a CI step or provisioning script that needs `upstash` commands with JSON output, piping results into other commands, `upstash auth login` and API-key setup, team and member management, changing plans, regions, TLS, eviction, auto-upgrade, or budgets, minting temporary S3 credentials for a Blob bucket, connecting a coding agent to Upstash with `upstash setup` (the Upstash plugin, or the remote MCP server plus skills), or when the user explicitly asks for the CLI or for managing Upstash without the console.
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Assembly programming and low-level debugging skill for reading, writing, explaining, optimizing, and reviewing assembly across x86, x86-64, ARM, AArch64, RISC-V, calling conventions, ABI boundaries, inline assembly, disassembly, stack frames, registers, and binary-level behavior. Use for .s/.asm files, compiler output, reverse-engineering snippets, low-level performance, and crash analysis.
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Python engineering skill for implementing, debugging, testing, packaging, typing, reviewing, and refactoring Python applications, scripts, APIs, automation, data processing, CLIs, and libraries. Use for .py files, pyproject.toml, requirements files, pytest, async Python, type hints, packaging, dependency management, and Python performance or reliability work.
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Go software engineering skill for designing, implementing, debugging, testing, reviewing, and refactoring Go applications, CLIs, APIs, services, concurrency code, modules, and tooling. Use for .go files, go.mod/go.sum, goroutines/channels, interfaces, error handling, performance profiling, race fixes, and idiomatic Go architecture.
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Threat intelligence fusion skill for collecting, normalizing, deduplicating, enriching, and operationalizing IOCs and TTPs from OTX, MISP, abuse.ch, VirusTotal, Shodan, GreyNoise, Censys, CISA KEV, NVD, vendor blogs, and internal telemetry. Use to build STIX/TAXII feeds, ATT&CK-mapped actor profiles, prioritized blocklists, and detection-ready intel packages.
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Inspect and commit local git work, or branch into an isolated worktree.
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Create, search, triage and label GitHub issues.
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Authenticate to GitHub with a token, an SSH key, or the gh CLI.
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Geocode an address, find places nearby, or compute a route.
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Control Philips Hue lights, scenes, rooms via OpenHue CLI.
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Verify a change before committing: security, tests, independent review.
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Track RSS/Atom feeds and blogs via blogwatcher-cli.
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Clone, create, fork or release a GitHub repository.
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Forge a tool, connect an MCP server, or chain tools in one script.
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Measure a codebase: lines of code, language mix, and symbol lookups.
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Clean up a diff for reuse, simplicity and efficiency, then apply the fixes.
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Review a pull request and leave inline comments on GitHub.
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Find the root cause of a bug before writing any fix.
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Evolution CMS JP Edition のリリース作業を対話形式でガイドするスキル。バージョン更新・タグ作成・GitHub Actions によるパッケージビルドまでを順を追って進める。「リリース」「release」と依頼されたときに使用する。
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`.agent/agents/reviewer.md` を入口に、PR差分やローカル差分を日本語でレビューするスキル。ユーザーが「レビュー」「PR確認」「差分確認」「コードレビュー」「reviewer」「レビュー指摘に対応」などを依頼したときに使う。GitHubレビュー指摘の対応（分類・方針提示・Worker委譲・resolved化）も扱う。
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Build type-safe validated forms using React Hook Form v7 and Zod v4. Single schema works on client and server with full TypeScript inference via z.infer. Use when building forms, multi-step wizards, or fixing uncontrolled warnings, resolver errors, useFieldArray issues, performance problems with large forms.
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Type-safe URL query state management with nuqs 2.x. Use when writing or reviewing code that uses useQueryState, useQueryStates, URL search params, query parameters, nuqs parsers, createLoader, createSearchParamsCache, createSerializer, or URL state in Next.js, React, Remix, React Router, or TanStack Router.
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