critical-thinking vs Opik
critical-thinking is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑15.
critical-thinking is a plugin bundle for AI coding tools published by Arash Behmand. No marketplace we read lists it any more. Opik is an MCP server published by comet-ml. Marketplaces we read that list it: 3 (Official MCP Registry, Docker MCP Catalog, PyPI (MCP servers)). As of our marketplace pass on 2026-10-24. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Opik | |
|---|---|---|
| Community marketplace arashbehmand/critical-thinking-skills | Removed on 2026-10-15 Version: 0.2.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 3.0.7 Downloads/month (PyPI): 3 591 Downloads/week (PyPI): 814 Forks (GitHub): 37 Stars (GitHub): 225 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:0e0d7d33d5eb Forks (GitHub): 37 Pulls (Docker Hub): 17 157 Stars (Docker Hub): 1 Stars (GitHub): 225 Not marked · First seen |
| PyPI (MCP servers) | Not listed | Listed Version: 3.0.7 Downloads/month (PyPI): 3 591 Downloads/week (PyPI): 814 Forks (GitHub): 37 Stars (GitHub): 225 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | critical-thinkingno longer listed · | Opik |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 3 |
| Stars (GitHub) (differs) | 0 | 225 |
| Pulls (Docker Hub) (differs) | No figure on Docker Hub | 17 157 |
| Forks (GitHub) (differs) | 0 | 37 |
| Last release (differs) | Not published | 2026-10-24 |
| Where it runs (differs) | Installs as a plugin bundle | Remote server or your machine |
| Transport (differs) | Not stated | Streamable HTTP, stdio |
| Tools it declares (differs) | Not published | 13 |
| Environment variables it asks for (differs) | Not published | 4, secrets among them: 1 |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 22 | Not a bundle |
| Licence (differs) | Not stated | Apache-2.0 |
| Repository (differs) | github.com/arashbehmand/critical-thinking-skills | github.com/comet-ml/opik-mcp |
| Changes in the last 7 days (differs) | 0 | 4 |
| First seen (differs) | 2026-10-14 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-21 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of critical-thinking
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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MCP server exposing a single sequentialthinking tool for dynamic, reflective, step-by-step problem-solving. Use when a task needs structured reasoning, planning, hypothesis…
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Critical Thinking Tools is a science-backed Claude Code plugin from Cognitive Bias Lab that helps users reason more clearly about decisions, beliefs, plans, forecasts, and…
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A deterministic thinking partner that challenges assumptions and applies 150+ mental models across 17 disciplines to sharpen decisions, solve problems, and think more clearly…
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Multi-step reasoning engine for complex analysis and systematic problem solving
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steelmind io.github.stabgan/steelmind
Structured thinking + steel-manning verification for AI agents. Backed by 43+ papers.
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Zetetic agent team for Cortex — 97 genius reasoning patterns from history's greatest minds + 23 team specialists (architect, engineer, code-reviewer, refactorer, …), 78 skills, 26…
What each says it does
critical-thinking
Thinking procedures for agents, a pure-math MCP server, and a controller nudge hook.
Opik
Read and score Opik traces, experiments, datasets and prompts from your AI assistant.
How to run each
critical-thinking
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Opik As a remote MCP server
claude mcp add --transport http opik-mcp https://www.comet.com/opik/api/v1/mcpRequires: OPIK_API_KEY (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Opik has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of critical-thinking publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of critical-thinking publish no settings it asks for, so we do not compare settings.
What it can do: critical-thinking · What it can do: Opik · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Package data comes from the Python Package Index (pypi.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.