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.
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.
$ npx skills add Q00/ouroboros --skill ouroboros-config -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Q00/ouroboros ouroboros-config --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/config .claude/skills/ouroboros-config && 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 "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .claude/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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/configType 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 ouroboros-config -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Q00/ouroboros ouroboros-config --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/config .agents/skills/ouroboros-config && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .agents/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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 ouroboros-config -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Q00/ouroboros ouroboros-config --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/config .cursor/skills/ouroboros-config && 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 "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .cursor/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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/config--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 ouroboros-config -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Q00/ouroboros ouroboros-config --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/config .gemini/skills/ouroboros-config && 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 "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .gemini/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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 ouroboros-configInstalls 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 ouroboros-config -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/config .github/skills/ouroboros-config && 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 "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .github/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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 ouroboros-config -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 ouroboros-config --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/config .opencode/skills/ouroboros-config && 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 "ouroboros-config" agent skill from https://github.com/Q00/ouroboros/tree/main/skills/config into .opencode/skills/ouroboros-config/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ouroboros-config", 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.
ouroboros-configOpens or drives the Ouroboros settings GUI, picking a browser, TUI or chat-based approach depending on whether the user can reach a browser window.
The deciding question is whether the user can open a browser pointed at the machine the agent is running on. On the user's own local machine it launches the settings app in the background, which serves itself over a local web server and auto-opens the browser, relaying the printed localhost URL in case the browser didn't pop up, and noting that a running server may need a reconnect to pick up changes and that a saved model choice is never permanent.
On a remote host the user can reach over the network, it serves without auto-opening and hands over the URL along with an SSH tunnel command as a fallback. On a chat gateway with no browser path at all, it never starts a server nobody can reach; instead it shows the current configuration as text and presents a short menu of per-stage runtime and model choices for the user to pick from conversationally.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit f587795. 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.
Shell commands in SKILL.md call:
uvxuvsshpipFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md. Its commands use uvx, uv, ssh and pip, which can reach the network depending on how they are called.
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.
Ouroboros Settings Opener loads about 1.2k tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 485 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 f587795, republished under its MIT licence (© Q00). 485 words, ~1,167 tokens.
.claude/skills/ouroboros-config/SKILL.md (or your agent's skills folder).Settings for ~/.ouroboros/config.yaml: per-stage runtime/model selects,
global runtime + LLM backend, install badges for missing CLIs, and
env-override warnings.
ooo config
/ouroboros:ouroboros-configTrigger keywords: "ooo config", "open settings", "configure ouroboros", "change model", "change agent"
Pick the branch that matches where you (the agent) are running. The decisive question: can the user open a browser pointed at this machine?
Launch in the background (the command serves until stopped):
if command -v ouroboros >/dev/null 2>&1; then
ouroboros config
else
uvx --python '>=3.12' --from 'ouroboros-ai[tui]' ouroboros config
fiThe command detects the non-interactive context itself and serves the
settings app over a local web server, auto-opening the user's browser. The
uvx fallback is required for a Marketplace-plugin-only install, where the
MCP server exists but ouroboros is not on PATH. In a development
checkout use uv run ouroboros config.
Relay the http://localhost:<port> line from the output so the user can
open it manually if the browser did not pop up.
Tell the user: edit → Save → then ask you to stop the server. Remind them
a running MCP server may need a reconnect to pick up backend changes. Tell
them they can reopen these settings any time with ooo config; saving a
model choice never locks it permanently.
The user cannot see a browser opened here, but may be able to reach this host. Serve without auto-open and hand over the URL:
ouroboros config --web --host 0.0.0.0 --no-browserRelay the printed URL with this host's address substituted, plus the SSH
tunnel fallback the command prints
(ssh -L <port>:localhost:<port> <this-host>).
Do NOT start a server nobody can reach. Drive the same settings conversationally over the scriptable surface:
Show the current state:
ouroboros config showPresent the user a short menu in chat (default agent, per-stage agents,
and models: auto, a tier, or a model id for every role) with the current
values, and ask what to change.
Apply each choice with the validated setter (same write path as the GUI):
ouroboros config set orchestrator.runtime_backend <agent>
ouroboros config set orchestrator.runtime_profile.stages.<interview|execute|evaluate|reflect> <agent>
ouroboros config set models.default <auto|frugal|standard|frontier|model> # every role
ouroboros config set models.pin true # run the per-role ids below
ouroboros config set clarification.default_model <model> # interview & seed
ouroboros config set execution.default_model <model> # execute
ouroboros config set evaluation.semantic_model <model> # evaluate
ouroboros config set resilience.reflect_model <model> # reflect
ouroboros config set llm.backend <backend> # internal LLM callsConfirm with ouroboros config show and summarize what changed.
If a set is rejected, relay the validation error verbatim — it lists the
valid keys/values.
If the command fails with a missing-dependency hint, relay it verbatim
(pip install 'ouroboros-ai[tui]'). Scriptable edits always remain on
ouroboros config show|set|backend|init|validate.
End your final message with the state breadcrumb footer (RFC #1392), e.g.:
◆ Settings GUI serving at <url> → next: Save in browser, then stop the server
◆ Config updated via chat (<keys>) → next: reconnect MCP if the backend changedYour 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/config of Q00/ouroboros.
Open the folder on GitHubat commit f587795
Ouroboros Settings Opener 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 |
|---|---|---|---|---|---|---|
| Ouroboros Settings Opener this skillQ00/ouroboros | 6.2k | — | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 10 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 35 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 297k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Skill CreatorAzure/azqr | 796 | 89 repos | ~8.2k | 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.
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
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.
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
Reference guide to the Ouroboros commands and agents, covering interviews, seed specs, evaluation, lateral-thinking personas and the evolutionary loop.
Categories
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. The deciding question is whether the user can open a browser pointed at the machine the agent is running on. On the user's own local machine it launches the settings app in the background, which serves itself over a local web server and auto-opens the browser, relaying the printed localhost URL in case the browser didn't pop up, and noting that a running server may need a reconnect to pick up changes and that a saved model choice is never permanent.
Ouroboros Settings Opener fits situations like: opening Ouroboros settings on your own machine; configuring Ouroboros on a remote SSH host you can reach; changing a model or agent setting through a chat interface with no browser.
Run `npx skills add Q00/ouroboros --skill ouroboros-config -a claude-code`. Or copy the skill folder (skills/config in Q00/ouroboros) into .claude/skills/ouroboros-config in your project. Claude Code loads it when a task matches its description.
Run `npx skills add Q00/ouroboros --skill ouroboros-config -a codex`. Or copy the skill folder (skills/config in Q00/ouroboros) into .agents/skills/ouroboros-config 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 ouroboros-config -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ouroboros-config, .gemini/skills/ouroboros-config, .github/skills/ouroboros-config and .opencode/skills/ouroboros-config in your project.
Going by SKILL.md and its folder, Ouroboros Settings Opener needs the command-line tools its instructions call (uvx, uv, ssh and pip). Our summary lists: The `ouroboros` CLI or its MCP server.
SKILL.md contains no URLs. Its commands use uvx, uv, ssh and pip, which can reach the network depending on how they are called. 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.
Ouroboros Settings Opener is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.2k tokens (SKILL.md is roughly 4.7k 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 Ouroboros Settings Opener: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k 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 6,193 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on October 7, 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.