cubeplex

Build inline interactive HTML widgets with show_widget — charts, diagrams, dashboards, sliders, side-by-side comparisons, or any visual explainer. Load before non-trivial widget work for design rules and scenario skeletons.

Use when the user asks to create, scaffold, or edit Jupyter notebooks (`.ipynb`) for experiments, explorations, or tutorials; prefer the bundled templates and run the helper script `new_notebook.py` to generate a clean starting notebook.

Prepare and publish cubeplex releases across backend, frontend, sandbox, Helm, Docker Compose, Git tags, and container registries. Use when cutting a release, bumping release versions, publishing Docker images, promoting image digests, updating deployment values, or troubleshooting release ordering.

Use when writing internal communications such as status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, and project updates.

Use this skill when visual quality and design identity matter for a PDF. CREATE (generate from scratch): "make a PDF", "generate a report", "write a proposal", "create a resume", "beautiful PDF", "professional document", "cover page", "polished PDF", "client-ready document". FILL (complete form fields): "fill in the form", "fill out this PDF", "complete the form fields", "write values into PDF", "what fields does this PDF have". REFORMAT (apply design to an existing doc): "reformat this document", "apply our style", "convert this Markdown/text to PDF", "make this doc look good", "re-style this PDF". This skill uses a token-based design system: color, typography, and spacing are derived from the document type and flow through every page. The output is print-ready. Prefer this skill when appearance matters, not just when any PDF output is needed.

Open, create, read, analyze, edit, or validate Excel/spreadsheet files (.xlsx, .xlsm, .csv, .tsv). Use when the user asks to create, build, modify, analyze, read, validate, or format any Excel spreadsheet, financial model, pivot table, or tabular data file. Covers: creating new xlsx from scratch, reading and analyzing existing files, editing existing xlsx with zero format loss, formula recalculation and validation, and applying professional financial formatting standards. Triggers on 'spreadsheet', 'Excel', '.xlsx', '.csv', 'pivot table', 'financial model', 'formula', or any request to produce tabular data in Excel format.

Use at the START of a large, unclear, or multi-subsystem cubeplex feature — before writing code — to isolate work, resolve the design, and write a spec/plan under docs/dev. Clearly specified, small, single-concern tasks skip spec, plan, clarification, and review and execute directly. Covers worktree provisioning (./scripts/new-worktree), reading .worktree.env for allocated ports/DBs, brainstorming requirements, and one-concern-per-PR planning. Triggers on phrases like "做个新功能", "开个 worktree", "先写 spec/plan", "怎么开始这个 feature", "plan before code", "brainstorm 一下需求".

Create polished, fully-editable Word (.docx) documents end to end — research or read the source, outline the structure, pick a style set, build native editable content (cover / headings / body / lists / three-line tables / figures / quote / TOC / page numbers), then self-check before delivering. Handles English and Chinese (including 公文 / GB-T 9704 layout). Use whenever the user wants a report, paper, proposal, letter, memo, contract draft, or any Word document. Free fonts + open libraries only.

Create polished, fully-editable PowerPoint (.pptx) decks end to end — research or read the source, outline a narrative, pick a theme, build native editable slides (cover / section / agenda / cards / steps / comparison table / metrics / native chart / statement / closing), then self-check for overflow / off-canvas / low-contrast before delivering. Use whenever the user wants a slide deck, presentation, pitch, PPT or PPTX. Free fonts + open libraries only.

Use when implementing a cubeplex feature, business rule, reusable core behavior, or a bug fix whose contract will keep evolving — the red→green→refactor loop. This skill is the TDD loop and the when-to-TDD judgment; it defers the test taxonomy / placement / discipline to docs/testing.md rather than restating it. Triggers on phrases like "写测试", "先写个 test", "TDD", "e2e 还是 unit", "红绿重构".

Use when hitting a bug, test failure, or unexpected behavior in cubeplex — BEFORE proposing or writing a fix. Enforces reproduce-first, then routes to the right cubeplex diagnostic: agent-run traces (cubepi-trace), alembic head conflicts, sandbox/reaper issues, SSE streaming, scope/RBAC 404-vs-403, and check-ci failures. Triggers on phrases like "这个 bug", "测试挂了", "为什么会这样", "报错了", "先别急着改", "run 不对", "迁移冲突", "sandbox 起不来".

Use when a PR has been (or is about to be) pushed and needs the codex review loop — push → wait → fetch new comments via the bundled codex-poll.sh → fix actionable feedback → reply to every comment → re-tag @codex → repeat until clean. Triggers on phrases like "等 codex review", "看看 review", "@codex 直到 ok", "PR review 循环".

Use when the user wants to open or control a web browser — navigate to a site, click, fill forms, log in, search, scrape a page, or do any interactive web task that plain HTTP fetch can't (JS-rendered pages, logins, OAuth, CAPTCHA). The user watches this browser live and can take over for steps only a human can do.

Use when the user asks to create, build, write, or design a skill, or wants to package an agent behavior or workflow as a reusable skill. Also use when the user wants to edit, modify, update, improve, fix, rename, or bump the version of an existing skill (preinstalled or already published), or publish a new version of one. Also use when the user wants to publish, upload, or share a skill in the current workspace.

Use when a question needs current multi-source research, multi-angle investigation, or iterative verification before producing a report or detailed answer

Create well-formatted git commits following conventional commit standards (type/scope/subject, with body and footer).

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.