stella

Control Stella-owned browser tabs through the persistent node_repl runtime and its frozen browser API. Use for navigation, page interaction, semantic locators, state inspection, new-tab flows, and browser screenshots.

Generate images, video, audio, and 3D through Stella's managed media gateway. Use when the user asks for any generated media. Don't call provider APIs directly — the gateway handles auth, billing, and persistence centrally.

Extend Stella's Pi-shaped runtime with agents, tools, hooks, providers, and prompt templates.

Control macOS desktop apps through Stella's persistent Computer Use runtime.

Control Windows desktop apps through Stella's persistent Computer Use runtime.

Control Stella-owned browser tabs through the persistent node_repl runtime and its frozen browser API. Use for navigation, page interaction, semantic locators, state inspection, new-tab flows, and browser screenshots.

Use Store integrations and imported MCP/API connectors through the stella-connect CLI.

Use this skill before modifying Stella, the desktop app and runtime the user is talking to you on. It provides necessary guidance and rules.

Scaffold a new single-file Stella app under desktop/src/app/_user. Use when the user asks Stella to build them an app, then edit only the generated file.

Improve frontend UI quality for Stella desktop surfaces and Stella-created apps through product-aware layout, typography, theming, interaction states, responsive behavior, and visual polish.

Create or update Stella skills. Use when the user asks to add, revise, port, validate, document, or design reusable agent skills, skill instructions, skill scripts, skill references, or skill assets for Stella agents.

Call language models through Stella's managed LLM relay using the user's Stella auth. Use when a Stella-created app, runtime helper, script, or integration needs LLM capabilities without direct provider API keys.

Create, analyze, proofread, and modify Office documents (.docx, .xlsx, .pptx) using Stella's bundled `stella-office` CLI. Use when the user wants to create, inspect, check formatting, find issues, add charts, or modify Office documents.

Use X (Twitter) through Stella's connected account.

Manage Apple Notes from the terminal via the memo CLI — create, search, edit, move, and export notes that sync across the user's Apple devices over iCloud. macOS only. Use when the user asks to work with Apple Notes.

Manage Apple Reminders from the terminal via the remindctl CLI — add, list, complete, and set due dates/alarms that sync to the user's iPhone and iPad over iCloud. macOS only. Use when the user mentions Reminders or wants a to-do on their Apple devices.

Strip AI-isms from text and add real human voice. Use when asked to humanize, de-AI, de-slop, or un-ChatGPT writing, to make a draft sound natural, to match a user's writing voice, or before publishing user-facing prose (posts, emails, docs, release notes).

Read, create, edit, or review PDF files when text extraction, visual rendering, layout fidelity, forms, page operations, OCR of scanned documents, or final PDF quality checks matter. Use for PDF inspection, conversion, generation, page rendering, annotation review, scanned-document OCR, and polished PDF deliverables.

Fetch a YouTube video's transcript and turn it into summaries, chapters, threads, blog posts, or quotes. Use when the user shares a YouTube link or asks to summarize, transcribe, or repurpose a video.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Create, analyze, proofread, and modify Office documents (.docx, .xlsx, .pptx) using the officecli CLI tool. Use when the user wants to create, inspect, check formatting, find issues, add charts, or modify Office documents.

Use this skill when the user wants to create an academic paper, research paper, white paper, technical report, policy brief, or any formally structured document with TOC, equations, footnotes, endnotes, or scholarly formatting. Trigger on: 'academic paper', 'research paper', 'white paper', 'technical report', 'policy brief', 'journal paper', 'scholarly document', 'paper with equations', 'paper with footnotes', 'paper with TOC', 'manuscript', 'conference paper'. Output is always a single .docx file.

Use this skill when the user wants to create a data dashboard, analytics dashboard, KPI dashboard, or executive summary from CSV/tabular data in Excel format. Trigger on: 'dashboard', 'KPI report', 'analytics summary', 'data visualization', 'CSV to Excel dashboard', 'executive dashboard', 'metrics dashboard'. Output is always a single .xlsx file.

Use this skill any time a .docx file is involved -- as input, output, or both. This includes: creating Word documents, reports, letters, memos, or proposals; reading, parsing, or extracting text from any .docx file; editing, modifying, or updating existing documents; working with templates, tracked changes, comments, headers/footers, or tables of contents. Trigger whenever the user mentions 'Word doc', 'document', 'report', 'letter', 'memo', or references a .docx filename.

Use this skill when the user wants to build a financial model, 3-statement model, DCF valuation, cap table, scenario analysis, or financial projections in Excel. Trigger on: 'financial model', '3-statement model', 'DCF', 'cap table', 'pro forma', 'projections', 'sensitivity analysis', 'waterfall', 'debt schedule', 'break-even', 'discounted cash flow', 'capitalization table', 'fundraising model', 'WACC calculation', 'scenario analysis model'. Input is a text prompt with assumptions. Output is a single .xlsx file with formula-driven, interconnected statement sheets.

Use this skill when the user wants to create a pitch deck, investor presentation, product launch deck, sales presentation, or business proposal in PowerPoint format. Trigger on: 'pitch deck', 'investor deck', 'Series A deck', 'product launch presentation', 'sales deck', 'fundraising deck', 'startup pitch', 'business proposal slides', 'seed pitch', 'enterprise sales deck'. Output is always a single .pptx file. This skill does NOT use morph transitions -- for morph-animated presentations, use the morph-ppt skill instead.

Use this skill any time a .pptx file is involved -- as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx file; editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates, layouts, speaker notes, or comments. Trigger whenever the user mentions 'deck,' 'slides,' 'presentation,' or references a .pptx filename.

Use this skill any time a .xlsx file is involved -- as input, output, or both. This includes: creating spreadsheets, financial models, dashboards, or trackers; reading, parsing, or extracting data from any .xlsx file; editing, modifying, or updating existing workbooks; working with formulas, charts, pivot tables, or templates; importing CSV/TSV data into Excel format. Trigger whenever the user mentions 'spreadsheet', 'workbook', 'Excel', 'financial model', 'tracker', 'dashboard', or references a .xlsx/.csv filename.

Generate Morph-animated PPTs with officecli