MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Interactive tutorial teaching Ouroboros hands-on. An agent skill from Q00/ouroboros.
$ npx skills add Q00/ouroboros --skill tutorial -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Q00/ouroboros tutorial --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/tutorial .claude/skills/tutorial && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .claude/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Q00/ouroboros/tree/main/skills/tutorialType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Q00/ouroboros --skill tutorial -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Q00/ouroboros tutorial --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/tutorial .agents/skills/tutorial && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .agents/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Q00/ouroboros --skill tutorial -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Q00/ouroboros tutorial --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/tutorial .cursor/skills/tutorial && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .cursor/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Q00/ouroboros.git --path skills/tutorial--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Q00/ouroboros --skill tutorial -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Q00/ouroboros tutorial --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/tutorial .gemini/skills/tutorial && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .gemini/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Q00/ouroboros tutorialInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Q00/ouroboros --skill tutorial -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/tutorial .github/skills/tutorial && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .github/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Q00/ouroboros --skill tutorial -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Q00/ouroboros tutorial --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Q00/ouroboros.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/tutorial .opencode/skills/tutorial && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tutorial" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/tutorial into .opencode/skills/tutorial/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tutorial", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
tutorialInteractive tutorial teaching Ouroboros hands-on. An agent skill from Q00/ouroboros.
Tutorial is an agent skill from Q00/ouroboros. Interactive tutorial teaching Ouroboros hands-on
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows. The repository describes itself as: Agent OS: the agent gets smarter on its own. We just hold the line: Interview-gated, staged evaluation, budgeted evolution loop. MCP server, 14 runtimes: Claude Code, Codex CLI… The licence is MIT.
6 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 0df5b98. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Tutorial loads about 1.6k tokens when it runs. Until then it costs about 14 tokens; SKILL.md has 383 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from Q00/ouroboros at commit 0df5b98, republished under its MIT licence (© Q00). 383 words, ~1,584 tokens.
.claude/skills/tutorial/SKILL.md (or your agent's skills folder).Interactive tutorial that teaches Ouroboros through hands-on experience.
ooo tutorial
/ouroboros:tutorialWhen this skill is invoked, guide the user through a learn-by-doing tutorial with progressive disclosure.
Start with enthusiasm and immediate value:
Welcome to the Ouroboros Tutorial!
In the next 5 minutes, you'll:
- Transform a vague idea into a precise specification
- See Ouroboros expose hidden assumptions you didn't know you had
- Generate a validated Seed ready for AI execution
Let's start with YOUR idea. What's something you've been wanting to build?
[Wait for user response - any project idea works]Once they share an idea, immediately start a simplified interview:
Great choice! Let me show you how Ouroboros thinks about this.
[Ask 3-4 targeted Socratic questions about their idea]
- "What's the primary problem this solves?"
- "Who are the main users?"
- "What's the one feature that would make this useful immediately?"
Notice something? Each question exposed an assumption you hadn't articulated.
This is the "aha moment" - requirements clarity BEFORE writing code.Generate a mini-seed to show immediate value:
Based on your answers, here's what we've uncovered:
[Display a simplified seed structure]
Goal: [their goal refined]
Constraints: [3 key constraints they mentioned]
Success Criteria: [2-3 clear metrics]
Ambiguity Score: 0.XX [show progress from vague to clear]
This seed is now ready for AI execution. No more "build me X" and hoping for the best!Progressive disclosure of features:
Now that you've seen the core magic, here's what else Ouroboros can do:
Immediate Wins (Available Now):
- ooo unstuck - 5 lateral thinking personas when you're blocked
- ooo seed - Generate full specifications from interviews
- ooo evolve - Evolutionary loop until ontology converges
Advanced Features (Setup Required):
- ooo run - Execute with visual TUI dashboard
- ooo evaluate - 3-stage quality verification
- ooo status - Track project drift in real-time
Want to try any of these now? Or shall I show you the full workflow?Show the complete pipeline:
The Complete Ouroboros Workflow:
Idea → Interview → Seed → Route → Execute → Evaluate
↓ ↓ ↓ ↓ ↓ ↓
Vague Clear Frozen Right Build Verified
Assumptions Spec Model Visibly Quality
5 commands from idea to validated result:
1. ooo interview "your idea" # Expose assumptions
2. ooo seed # Crystallize spec
3. ooo run # Execute with TUI
4. ooo evaluate # 3-stage verification
5. ooo status # Check drift
Ready to try your first real project?
Your First Real Project awaits!
Pick a path:
Path A: Start Fresh
ooo interview "your actual project idea"
Path B: Learn More
ooo help # Full command reference
Path C: Setup Full Features
ooo setup # Enable TUI, evaluation, drift tracking
Which path interests you?Track progress through these checkpoints:
No problem! Let's use a classic example: a task management CLI.
[Continue tutorial with task management CLI example]It's actually simpler than it sounds. Let me show you the 3 commands you'll use 90% of the time:
1. ooo interview "idea" # Clarify what you want
2. ooo seed # Generate the spec
3. ooo run # Build it
Everything else is optional power-user features.Great question! The difference is:
Without Ouroboros:
"Build me a task CLI" → Claude guesses → You realize it's wrong → Rewrite prompt → Repeat
With Ouroboros:
Interview → Hidden assumptions exposed → Precise spec → Claude builds exactly what you want → First try
The interview saves you hours of iteration.A successful tutorial ends when:
Your final response MUST end with exactly one breadcrumb footer line:
◆ <current state> → next: <recommended action>Derive <current state> from live session state via ouroboros_session_status when that MCP projection is available; otherwise derive it from this skill's actual outcome. Never use a linear Step N of M footer because Ouroboros is an evolutionary loop. When the next action is genuinely a choice, list 2-3 honest options in the next: clause. The breadcrumb line must be the last line of the response.
© Q00, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/tutorial of Q00/ouroboros.
Open the folder on GitHubat commit 0df5b98
Tutorial next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Tutorial this skillQ00/ouroboros | 6.2k | — | ~1.6k | Automated safety check: Pass | MIT | |
| MCP Server Builderanthropics/skills | 180k | 62 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 37k | 11 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 34 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 296k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 37k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 |
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
anthropics/claude-plugins-official
Explains how to write Claude Code plugin hooks, both prompt-based checks and bash commands, for events such as PreToolUse, Stop and SessionStart.
farm-fe/farm
A skill your agent uses when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions
obra/superpowers
Has the agent carry out an implementation plan itself, task by task in the current session, keeping a ledger, proving each step with a test and ending with one whole-branch review.
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
Q00/ouroboros
Triages and works through GitHub issues and pull requests in the Q00/ouroboros repo as a maintainer, within a stated review boundary and clear limits on what it may change.
Q00/ouroboros
Runs a guided product-manager interview that classifies each question automatically and produces a Product Requirements Document.
Q00/ouroboros
Scans a directory for existing git repositories and worktrees, then registers and manages which ones serve as default context during interviews.
Q00/ouroboros
Scores an agent's finished work with a three-stage pipeline: free mechanical checks, an advisory semantic review, and an optional multi-model consensus vote.
Q00/ouroboros
Starts, monitors or rewinds an evolutionary development loop that refines an ontology and acceptance criteria generation by generation until it converges, using the Ouroboros MCP tools.
Q00/ouroboros
Opens or drives the Ouroboros settings GUI, picking a browser, TUI or chat-based approach depending on whether the user can reach a browser window.
Categories
Interactive tutorial teaching Ouroboros hands-on. An agent skill from Q00/ouroboros. Tutorial is an agent skill from Q00/ouroboros.
Tutorial fits situations like: agent Workflows work in your project.
Run `npx skills add Q00/ouroboros --skill tutorial -a claude-code`. Or copy the skill folder (skills/tutorial in Q00/ouroboros) into .claude/skills/tutorial in your project. Claude Code loads it when a task matches its description.
Run `npx skills add Q00/ouroboros --skill tutorial -a codex`. Or copy the skill folder (skills/tutorial in Q00/ouroboros) into .agents/skills/tutorial in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Q00/ouroboros --skill tutorial -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tutorial, .gemini/skills/tutorial, .github/skills/tutorial and .opencode/skills/tutorial in your project.
SKILL.md names no scripts, command-line tools or credentials: Tutorial is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Tutorial is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.6k tokens (SKILL.md is roughly 6.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Tutorial: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 37k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 296k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Q00 (a GitHub user) maintains it in Q00/ouroboros, which has 6,189 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on October 6, 2026.
Source: Q00/ouroboros on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.