Mental model thinking frameworks — first principles, inversion, 80/20, second-order effects, and more
Evaluate decisions across three time horizons
Drill to root cause by asking why repeatedly
Apply Eisenhower matrix (urgent/important) to prioritize tasks or decisions
Break down to fundamentals and rebuild from base truths
Solve problems backwards - what would guarantee failure?
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A modular marketplace of Claude Code plugins for planning, prompting, reflection, and productivity workflows. Install only what you need — each plugin is independent with its own commands, skills, and agents.
Forked from TACHES with added playbook system (ACE pattern) for cross-session knowledge accumulation.
| Plugin | What it does | Commands | Skills | Agents |
|---|---|---|---|---|
| consider | Mental model thinking frameworks | 12 | — | — |
| research | Structured research workflows | 8 | — | — |
| reflection | ACE playbook system | 2 | 2 | 1 |
| extensibility | Create/audit/heal Claude Code extensions | 9 | 6 | 3 |
| planning | Project planning + team orchestration | 4 | 1 | 2 |
| todos | Linear-integrated task management | 3 | — | — |
| tools | Docs, debugging, Ralph loops | 3 | 3 | — |
| prompting | Prompt engineering for delegation | 3 | — | — |
| expertise | Domain knowledge (iOS, macOS, n8n) | — | 3 | — |
| native-workflow | Native plan mode iterative workflow | 3 | — | 1 |
From within Claude Code:
# Add the marketplace
/plugin marketplace add HelloWorldSungin/ark-ai-agent
# Install only plugins you need
/plugin install consider@ark-ai-agent
/plugin install planning@ark-ai-agent
/plugin install reflection@ark-ai-agent
Or from a local submodule:
/plugin marketplace add ./external/ark-ai-agent
/plugin install consider@ark-ai-agent
Use the interactive /plugin UI to browse all available plugins.
v3.0.0 replaces the monolithic ark-ai-agent plugin with 9 independent plugins. To migrate:
/plugin uninstall ark-ai-agent@ark-ai-agentark-ai-agent:consider:first-principles are now consider:first-principlesApply mental frameworks to decisions and problems.
| Command | Description |
|---|---|
first-principles | Break down to fundamentals and rebuild |
inversion | Solve backwards — what guarantees failure? |
pareto | Apply 80/20 rule to focus on what matters |
second-order | Think through consequences of consequences |
5-whys | Drill to root cause |
occams-razor | Find simplest explanation |
one-thing | Identify highest-leverage action |
swot | Map strengths, weaknesses, opportunities, threats |
eisenhower-matrix | Prioritize by urgent/important |
10-10-10 | Evaluate across time horizons |
opportunity-cost | Analyze what you give up |
via-negativa | Improve by removing |
Structured research workflows with web search and analysis.
| Command | Description |
|---|---|
competitive | Competitive analysis |
deep-dive | Deep dive into a topic |
feasibility | Feasibility study |
history | Historical research |
landscape | Landscape survey |
open-source | Open source research |
options | Options analysis |
technical | Technical research |
Accumulate reusable knowledge across sessions using the ACE (Agentic Context Engineering) pattern.
| Component | Name | Description |
|---|---|---|
| Command | session-reflect | Analyze session and extract learnings |
| Command | playbook-update | Apply reflection to playbook files |
| Skill | session-reflect | End-of-session knowledge extraction |
| Skill | playbook-update | Curator-managed playbook updates |
| Agent | playbook-curator | ACE-style playbook curation with dedup |
Workflow: End of session → /session-reflect → /playbook-update → knowledge persists to next session.
See playbook system docs for details.
The complete Claude Code extension lifecycle: create, audit, and heal.
MCP wrapper skills for calling GitHub, Linear, Context7, DeepWiki, and Playwright via mcporter CLI — zero context window overhead
Create and edit Obsidian vault files including Markdown, Bases, and Canvas. Use when working with .md, .base, or .canvas files in an Obsidian vault.
Project planning and execution — solo plans, team orchestration, Linear integration
Prompt engineering for task delegation — create prompts, run prompts, guided questioning
Shared skills for ArkNode projects built around two co-equal cores: a stateless workflow consultant that routes each task to exactly one execution ecosystem and files a GitHub epic as the plan of record, and a conventions layer (OKF v0.1 knowledge bundles, GitHub Issues task management, NotebookLM sync) applied via onboarding, health diagnostics, and version-driven migration.
npx claudepluginhub helloworldsungin/ark-ai-agent --plugin considerComprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Automated code review for pull requests using multiple specialized agents with confidence-based scoring
Consult multiple AI coding agents (Gemini, OpenAI, Grok, Perplexity, plus codex, antigravity, and grok CLIs when installed) to get diverse perspectives on coding problems
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review