open source · free for all
Oskis — Open Source Skilskis. Free for all.
Oskis are community-contributed AI skills, free to run via the skill.ski public MCP endpoint. 127 indexed across 6 upstream sources. Attribution required — no paywall, no lock-in.
install · 30 seconds
Get all 127 Oskis into your agent
01
Sign up free
Create a free skil.ski account. No card. Oskis ship with every account.
02
Copy your MCP token
Settings → MCP → Generate token. The free tier scope is the Oski catalog.
03
Add the server
Paste the URL + token into Claude Desktop, Cursor, ChatGPT Custom GPT, Codex, or any MCP client.
Free MCP endpoint
https://skil.ski/api/mcp/freeFree tier · scoped to the Oski catalog. Pro and Elite endpoints unlock the full skill registry.
example config
{
"mcpServers": {
"skil-ski-oskis": {
"url": "https://skil.ski/api/mcp/free",
"headers": {
"Authorization": "Bearer <token>"
}
}
}
}browse oskis
30 Letta Oskis
Letta Agent Development
Lettaengineering
Comprehensive guide for developing Letta agents, including architecture selection, memory design, model selection, and tool configuration. Use when building or troubleshooting Letta agents.
MITGet via MCP →
Letta Conversations API
Lettaengineering
Guide for using the Letta Conversations API to manage isolated message threads on agents. Use when building multi-user chat applications, session management, or any scenario requiring separate conversation contexts on a single agent.
MITGet via MCP →
Letta Fleet Management
Lettaoperations
Manage Letta AI agent fleets declaratively with kubectl-style CLI. Use when creating, updating, or managing multiple Letta agents with shared configurations, memory blocks, tools, folders, canary deployments, multi-tenancy, and bulk operations.
MITGet via MCP →
Letta Import ChatGPT Memory
Lettaengineering
Clone ChatGPT saved memory into Letta, then optionally enrich it with broader conversation history. Designed for a slick onboarding flow that extracts hidden saved-memory/context blocks, builds Letta-ready previews, and only asks questions at meaningful checkpoints.
MITGet via MCP →
Letta API Client
Lettaengineering
Build applications with the Letta API — a model-agnostic, stateful API for building persistent agents with memory and long-term learning. Covers SDK patterns for Python and TypeScript. Includes 24 working code examples.
MITGet via MCP →
Letta Configuration
Lettaengineering
Configure LLM models and providers for Letta agents and servers. Use when setting model handles, adjusting temperature/tokens, configuring provider-specific settings, setting up BYOK providers, or configuring self-hosted deployments with environment variables.
MITGet via MCP →
Letta 1Password CLI
Lettaoperations
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
MITGet via MCP →
Letta AI News Digest
Lettawriting
Fetch and summarize recent AI news from curated RSS feeds (Hugging Face, VentureBeat, The Verge, OpenAI, Anthropic, DeepMind, etc.) and YouTube channels (Yannic Kilcher, Two Minute Papers, AI Explained, etc.). Also fetches full transcripts for specific YouTube videos. Use when the user asks about recent AI news, what's happened in AI lately, summaries of AI research or product announcements, or wants a digest of what's going on in the AI space.
MITGet via MCP →
Letta Datadog
Lettaoperations
Query Datadog observability data (logs, metrics, monitors, dashboards, hosts) via direct API. Use when investigating production issues, checking monitors, searching logs, or accessing Datadog data.
MITGet via MCP →
Letta Discord CLI
Lettaoperations
Discord automation CLI — send/read/search messages, manage channels and servers, react, create threads, pin messages, and look up users.
MITGet via MCP →
Letta DOCX Editor
Lettawriting
Use when the task involves reading, creating, or editing `.docx` documents, especially when formatting or layout fidelity matters; prefer `python-docx` plus the bundled `scripts/render_docx.py` for visual checks.
Apache-2.0Get via MCP →
Letta Figma Bridge
Lettacreative
Use the Figma MCP server to fetch design context, screenshots, variables, and assets from Figma, and to translate Figma nodes into production code. Trigger when a task involves Figma URLs, node IDs, design-to-code implementation, or Figma MCP setup and troubleshooting.
Apache-2.0Get via MCP →
Letta Frontend Design
Lettaengineering
Use when the task asks for a visually strong landing page, website, app, prototype, demo, or game UI. This skill enforces restrained composition, image-led hierarchy, cohesive content structure, and tasteful motion while avoiding generic cards, weak branding, and UI clutter.
Apache-2.0Get via MCP →
Letta GitHub CLI
Lettaengineering
GitHub operations via `gh` CLI: issues, PRs, CI runs, code review, API queries. Use when: (1) checking PR status or CI, (2) creating/commenting on issues, (3) listing/filtering PRs or issues, (4) viewing run logs. NOT for: complex web UI interactions requiring manual browser flows (use browser tooling when available), bulk operations across many repos (script with gh api), or when gh auth is not configured.
MITGet via MCP →
Letta Jupyter Notebook
Lettaengineering
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.
Apache-2.0Get via MCP →
Letta Linear CLI
Lettaoperations
Manage Linear issues from the command line using the linear cli. This skill allows automating linear management.
ISCGet via MCP →
Letta MCP Builder
Lettaengineering
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
Apache-2.0Get via MCP →
Letta Notion API
Lettaoperations
Notion API for creating and managing pages, databases, and blocks.
MITGet via MCP →
Letta Obsidian Vault
Lettawriting
Work with Obsidian vaults (plain Markdown notes) and automate via obsidian-cli.
MITGet via MCP →
Letta PDF Toolkit
Lettawriting
Use when tasks involve reading, creating, or reviewing PDF files where rendering and layout matter; prefer visual checks by rendering pages (Poppler) and use Python tools such as `reportlab`, `pdfplumber`, and `pypdf` for generation and extraction.
Apache-2.0Get via MCP →
Letta Playwright
Lettaengineering
Use when the task requires automating a real browser from the terminal (navigation, form filling, snapshots, screenshots, data extraction, UI-flow debugging) via `playwright-cli` or the bundled wrapper script.
Apache-2.0Get via MCP →
Letta Screenshot CLI
Lettaoperations
Use when the user explicitly asks for a desktop or system screenshot (full screen, specific app or window, or a pixel region), or when tool-specific capture capabilities are unavailable and an OS-level capture is needed.
Apache-2.0Get via MCP →
Letta Sentry
Lettaoperations
Use when the user asks to inspect Sentry issues or events, summarize recent production errors, or pull basic Sentry health data via the Sentry API; perform read-only queries with the bundled script and require `SENTRY_AUTH_TOKEN`.
Apache-2.0Get via MCP →
Letta Slack CLI
Lettaoperations
Slack automation CLI — read/send/search messages, browse threads and channels, manage channels, download attachments, look up users, and run workflows.
MITGet via MCP →
Letta Slides (PPTX)
Lettacreative
Create and edit presentation slide decks (`.pptx`) with PptxGenJS, bundled layout helpers, and render/validation utilities. Use when tasks involve building a new PowerPoint deck, recreating slides from screenshots/PDFs/reference decks, modifying slide content while preserving editable output, adding charts/diagrams/visuals, or diagnosing layout issues such as overflow, overlaps, and font substitution.
Apache-2.0Get via MCP →
Letta Text-to-Speech
Lettacreative
Use when the user asks for text-to-speech narration or voiceover, accessibility reads, audio prompts, or batch speech generation via the OpenAI Audio API; run the bundled CLI (`scripts/text_to_speech.py`) with built-in voices and require `OPENAI_API_KEY` for live calls. Custom voice creation is out of scope.
Apache-2.0Get via MCP →
Letta Spotify Player
Lettacreative
Terminal Spotify playback/search via spogo (preferred) or spotify_player.
MITGet via MCP →
Letta Spreadsheet (XLSX)
Lettaoperations
Use when tasks involve creating, editing, analyzing, or formatting spreadsheets (`.xlsx`, `.csv`, `.tsv`) with formula-aware workflows, cached recalculation, and visual review.
Apache-2.0Get via MCP →
Letta Transcribe Audio
Lettawriting
Transcribe audio files to text with optional diarization and known-speaker hints. Use when a user asks to transcribe speech from audio/video, extract text from recordings, or label speakers in interviews or meetings.
Apache-2.0Get via MCP →
Letta Visual Identity
Lettacreative
Build and maintain a persistent visual identity for your agent using Flux Kontext Pro. Use when the user asks the agent to generate selfies, avatars, character art, or any image that should look like the same person across generations.
MITGet via MCP →
open contribution
Want to publish an Oski?
Oskis are open-source Skilskis — contribute yours via GitHub. Include a SKILL.md, a license, and a source attribution and we will list it here.
Submit a PR →