Selects and applies mental models for structured problem analysis. Triggers when user asks "why", "what if", "how should we", needs systematic problem-solving, or mentions analyzing a situation. MUST BE USED when comparing options, making decisions, or evaluating trade-offs.
/plugin marketplace add rayk/lucid-toolkit/plugin install rayk-analyst-plugins-analyst@rayk/lucid-toolkitThis skill inherits all available tools. When active, it can use any tool Claude has access to.
references/10-10-10.mdreferences/5-whys.mdreferences/eisenhower.mdreferences/first-principles.mdreferences/inversion.mdreferences/occams-razor.mdreferences/one-thing.mdreferences/opportunity-cost.mdreferences/pareto.mdreferences/second-order.mdreferences/six-hats.mdreferences/swot.mdreferences/toc.mdreferences/via-negativa.md<quick_start>
/consider [problem statement]
The command will analyze, gather required information, then apply the right model(s). </quick_start>
<problem_classification>
<problem_types>
| Type | Signals | Description |
|---|---|---|
| DIAGNOSIS | "why", "cause", "root" | Understanding why something happened |
| DECISION | "should I", "decide", "choose" | Choosing between options |
| PRIORITIZATION | "overwhelmed", "too many", "first" | Determining what matters most |
| INNOVATION | "stuck", "nothing works", "assume" | Breaking through barriers |
| RISK | "fail", "risk", "wrong" | Assessing potential failures |
| FOCUS | "focus", "leverage", "important" | Finding highest-impact actions |
| OPTIMIZATION | "simplify", "remove", "reduce" | Improving by subtraction |
| STRATEGY | "strategy", "position", "compete" | Assessing competitive position |
| DELIBERATION | "perspectives", "group", "meeting", "angles" | Exploring from multiple viewpoints |
| SYSTEMIC | "symptoms", "causes", "constraint", "bottleneck" | Complex system diagnosis (TOC) |
| </problem_types> |
<classification_dimensions> Temporal Focus: PAST | PRESENT | FUTURE Complexity: SIMPLE | COMPLICATED | COMPLEX Emotional Loading: HIGH | LOW Information State: OVERLOAD | SPARSE | CONFLICTING </classification_dimensions>
</problem_classification>
<approach_selection>
<selection_matrix>
| Problem Type | Focus Area | Primary Model | Supporting Model |
|---|---|---|---|
| DIAGNOSIS | Root cause | 5-Whys | First Principles |
| DIAGNOSIS | Assumptions | First Principles | Occam's Razor |
| DIAGNOSIS | Simplest explanation | Occam's Razor | 5-Whys |
| DECISION | Time horizons | 10-10-10 | Second-Order |
| DECISION | Tradeoffs | Opportunity Cost | 10-10-10 |
| DECISION | Failure prevention | Inversion | Second-Order |
| PRIORITIZATION | Urgency/importance | Eisenhower Matrix | Pareto |
| PRIORITIZATION | Impact ranking | Pareto | One Thing |
| PRIORITIZATION | Single leverage | One Thing | Pareto |
| INNOVATION | Challenge assumptions | First Principles | Inversion |
| INNOVATION | Flip perspective | Inversion | First Principles |
| INNOVATION | Subtract complexity | Via Negativa | One Thing |
| RISK | Failure modes | Inversion | Second-Order |
| RISK | Consequence chains | Second-Order | Inversion |
| FOCUS | Highest leverage | One Thing | Pareto |
| FOCUS | Vital few | Pareto | One Thing |
| FOCUS | What to eliminate | Via Negativa | Pareto |
| OPTIMIZATION | Remove bloat | Via Negativa | Pareto |
| OPTIMIZATION | Efficiency | Pareto | Via Negativa |
| STRATEGY | Position | SWOT | Second-Order |
| STRATEGY | Competition | SWOT | Inversion |
| STRATEGY | Long-term | Second-Order | SWOT |
| DELIBERATION | Perspectives | Six Hats | SWOT |
| DELIBERATION | Emotions vs logic | Six Hats | 10-10-10 |
| SYSTEMIC | Constraint | TOC | 5-Whys |
| SYSTEMIC | Conflict resolution | TOC | Six Hats |
| </selection_matrix> |
</approach_selection>
<available_models>
| Model | Best For | Core Question |
|---|---|---|
| 5-Whys | Root cause analysis | "Why did this happen?" (iterate 5x) |
| 10-10-10 | Decisions with emotional bias | "How will I feel in 10 min/months/years?" |
| Eisenhower | Task prioritization | "Is this urgent AND important?" |
| First Principles | Challenging assumptions | "What is fundamentally true?" |
| Inversion | Risk prevention | "What would guarantee failure?" |
| Occam's Razor | Competing explanations | "Which requires fewest assumptions?" |
| One Thing | Finding leverage | "What makes everything else easier?" |
| Opportunity Cost | Tradeoff analysis | "What am I giving up?" |
| Pareto | Impact prioritization | "Which 20% drives 80% of results?" |
| Second-Order | Consequence analysis | "And then what happens?" |
| SWOT | Strategic position | "Strengths/Weaknesses/Opportunities/Threats?" |
| Via Negativa | Simplification | "What should I remove?" |
| Six Hats | Parallel perspectives | "What are all the angles?" |
| TOC | Systemic root cause + conflict resolution | "What constraint is blocking the system?" |
Full model templates: See references/ directory for complete execution frameworks.
</available_models>
<information_requirements>
<model_information_needs>
| Model | Local Sources | Web Research | User Clarification |
|---|---|---|---|
| 5-Whys | Logs, history, docs | Rarely needed | Root symptoms, timeline |
| 10-10-10 | Past decisions | Rarely needed | Values, priorities |
| Eisenhower | Task lists, deadlines | Rarely needed | Urgency criteria |
| First Principles | Technical docs | Industry fundamentals | Core assumptions |
| Inversion | Failure history | Industry failure cases | Success definition |
| Occam's Razor | Available evidence | Rarely needed | Competing hypotheses |
| One Thing | Goals, metrics | Rarely needed | Primary objective |
| Opportunity Cost | Project docs, budgets | Market rates, benchmarks | Budget constraints |
| Pareto | Metrics, analytics | Industry benchmarks | Success metrics |
| Second-Order | Codebase, history | Industry trends, precedents | Time horizon |
| SWOT | Internal docs, capabilities | Market/competitor data | Strategic goals |
| Via Negativa | Current state docs | Best practices | What to preserve |
| </model_information_needs> |
<information_source_decision> Before executing any model, classify each information need:
| Need Type | Source | Tool/Method |
|---|---|---|
| Historical context | Local | Read (logs, docs, git history) |
| Codebase patterns | Local | Task(Explore) with constraints |
| Current metrics | Local | Read analytics, logs |
| Market data | Web | Task + WebSearch |
| Competitor info | Web | Task + WebSearch |
| Industry benchmarks | Web | Task + WebSearch |
| User preferences | User | AskUserQuestion |
| Success criteria | User | AskUserQuestion |
| Constraints/limits | User | AskUserQuestion |
| Technical specs | Local/User | Read docs OR AskUserQuestion |
| </information_source_decision> |
</information_requirements>
<research_coordination>
When information gathering is needed, use Task tool with structured prompts for token efficiency.
<local_context_gathering> For codebase/local file analysis:
@type: AnalyzeAction
about: "[specific question about codebase/docs]"
@return Answer:
- text: string (direct answer, max 200 chars)
- evidence: string[] (file:line references, max 5)
- confidence: string (high|medium|low)
@constraints:
maxTokens: 2000
format: JSON object
Return ONLY the specified structure. No preamble or explanations.
Use subagent_type: Explore with thoroughness based on scope:
quickmediumthorough
</local_context_gathering><web_research_gathering> For market/competitor/industry research:
@type: AnalyzeAction
query: "[specific research query]"
@return ItemList (max 5 items):
- position: integer
- name: string (source name)
- url: string (if available)
- summary: string (max 150 chars, key finding)
- relevance: string (high|medium|low)
@constraints:
maxTokens: 3000
format: markdown table
Return ONLY the specified structure. No commentary.
Use WebSearch or WebFetch for:
<parallel_gathering> When multiple independent information needs exist:
Invoke multiple Task calls in a single message:
Example parallel invocation:
Task 1: Explore codebase for error handling patterns
Task 2: WebSearch for "industry error handling best practices 2024"
Both return focused, structured responses within token budgets. </parallel_gathering>
</research_coordination>
<combination_patterns>
<serial_chains> Use when output of one model feeds the next:
Diagnostic Chain: 5-Whys → First Principles → Inversion (find root → verify assumptions → prevent recurrence)
Decision Chain: Opportunity Cost → Second-Order → 10-10-10 (what you give up → consequences → time horizons)
Priority Chain: Pareto → One Thing → Via Negativa (vital few → single leverage → remove rest)
Strategic Chain: SWOT → Inversion → Second-Order (position → failure modes → consequences) </serial_chains>
<parallel_triangulation> Use multiple lenses simultaneously for validation:
High-stakes decision: 10-10-10 + Inversion + Second-Order Strategic pivot: SWOT + First Principles + Opportunity Cost Simplification: Via Negativa + Pareto + One Thing </parallel_triangulation>
</combination_patterns>
<memory_recall>
At analysis start, if MCP memory tools are available:
<step_0_recall> Recall Past Context
Use mcp__memory__search_nodes to find relevant prior analyses:
search_nodes("{key problem terms}")
Look for:
If matches found, use mcp__memory__open_nodes to get details:
open_nodes(["problem-similar-issue", "insight-relevant-finding"])
Present to user:
## Prior Context (from memory)
**Similar problems analyzed:**
- [problem name]: [key observations]
**Relevant insights:**
- [insight]: [content, outcome]
**Recurring root causes in this area:**
- [root cause]: [occurrence count]
Use prior context to:
Skip memory recall if:
</memory_recall>
<process><step_1_analyze> Analyze Problem
<step_2_confirm> Confirm Classification
<step_3_assess_information> Assess Information Needs For selected model(s), determine:
Available locally?
Requires web research?
Must ask user?
<step_4_gather> Gather Information
Execute information gathering based on assessment:
Parallel execution: If needs are independent, invoke multiple Task calls in single message.
Token budget guidance:
<step_5_execute> Execute Model(s)
With gathered context:
references/[model-name].md<step_6_synthesize> Synthesize Insights
Deliver:
Before proceeding to execution, verify:
Red flags requiring user clarification:
<success_criteria>
Analysis is successful when:
</success_criteria>
<output_format>
For the problem classification section (step 1), use TOON structured format:
@type: AnalyzeAction
name: problem-classification
object: [problem statement text]
actionStatus: CompletedActionStatus
classification:
primaryType: [DIAGNOSIS|DECISION|PRIORITIZATION|INNOVATION|RISK|FOCUS|OPTIMIZATION|STRATEGY]
temporalFocus: [PAST|PRESENT|FUTURE]
complexity: [SIMPLE|COMPLICATED|COMPLEX]
emotionalLoading: [HIGH|LOW]
signals[N]: [key,signal,words]
Note: Keep all reasoning, framework selection, model execution, and synthesis as markdown prose. Only use TOON for the structured classification output at the beginning of the analysis.
</output_format>
<references>Model execution templates (read when applying specific model):
references/5-whys.md - Root cause drillingreferences/10-10-10.md - Time horizon analysisreferences/eisenhower.md - Urgency/importance matrixreferences/first-principles.md - Assumption challengingreferences/inversion.md - Failure mode analysisreferences/occams-razor.md - Simplest explanationreferences/one-thing.md - Leverage identificationreferences/opportunity-cost.md - Tradeoff analysisreferences/pareto.md - 80/20 analysisreferences/second-order.md - Consequence chainsreferences/swot.md - Strategic positionreferences/via-negativa.md - Improvement by subtractionreferences/six-hats.md - Parallel perspective explorationreferences/toc.md - Theory of Constraints logical thinking<memory_reference>
For memory schema details, see mcp/memory-schema.md.
</memory_reference>
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