| name | think |
| description | Zero-base deep research: structured investigation → synthesis → proposal with counter-arguments |
| argument-hint | <topic> [github.com/owner/repo] |
| user-invocable | true |
| disable-model-invocation | true |
| allowed-tools | ["Read","Glob","Grep","Write","Agent","Bash(gh issue list:*)","Bash(gh api:*)","Bash(git log:*)","Bash(git diff:*)","TaskCreate","TaskUpdate","TaskList","TaskGet","AskUserQuestion","WebSearch","WebFetch","mcp__gemini-deepsearch__deep_search","mcp__perplexity__perplexity_research","mcp__perplexity__perplexity_search","mcp__perplexity__perplexity_ask","mcp__perplexity__perplexity_reason","mcp__playwright__browser_navigate","mcp__playwright__browser_snapshot","mcp__playwright__browser_take_screenshot","mcp__playwright__browser_close"] |
/think — Zero-Base Deep Research & Proposal
Zero-base thinking: discard assumptions, collect facts, synthesize essentials, propose with counter-arguments.
This is a long-running skill. Use TaskCreate to track phases and persist progress across /compact.
Principles
- No guessing: Every claim requires a source URL. Unknown = say "unknown"
- Zero-base: Discard existing assumptions. Build conclusions bottom-up from facts
- MECE: Design research axes with no gaps or overlaps
- Pyramid principle: Conclusion → rationale → data
- Generator-Critic: Always verify proposals with counter-arguments
Modes
| Mode | Trigger | Purpose |
|---|
| Normal | /think <topic> | General deep research → analysis → proposal |
| Repo Analysis | /think <topic> github.com/owner/repo | Repository competitive analysis → roadmap proposal |
Normal Mode
/think <topic>
│
Phase 1: Scoping + Deep Search (auto)
│ ├─ Research design (MECE axes)
│ └─ Gemini DeepSearch + Perplexity MCP parallel execution
│
Phase 2: Research (integration + supplemental)
│ ├─ Cross-validate Gemini/Perplexity results
│ ├─ deep-researcher for supplemental (SNS, local, latest)
│ └─ source-verifier for all URL validation
│
Phase 3: Deep Dive (parallel analysis)
│ ├─ case-analyzer × N (parallel)
│ ├─ social-scanner (reputation research)
│ └─ Additional Deep Search via MCP as needed
│
Phase 4: Synthesis (identify essentials) ← Main agent
│
Phase 5: Proposal (propose + counter-argument verification)
└─ counter-argument agent
Phase 1: Scoping + Deep Search
Goal: Design research axes and auto-execute deep searches.
- Decompose the topic into 3-5 MECE research axes
- For each axis, execute in parallel:
mcp__gemini-deepsearch__deep_search (free, 250/day) — primary
mcp__perplexity__perplexity_research — top 1-3 axes only (cost: ~$0.4-1.3/call)
- TaskCreate for each axis to track progress
Phase 2: Research Integration
Goal: Cross-validate and fill gaps.
- Compare Gemini and Perplexity results for consistency
- Launch
deep-researcher agent for supplemental research:
- SNS/community discussions
- Japan-local information
- Latest developments not in deep search results
- Launch
source-verifier agent to validate all URLs
- Flag contradictions between sources
Phase 3: Deep Dive
Goal: Detailed analysis of key cases and social impact.
Launch in parallel:
case-analyzer agents for each important case/example (up to 5)
social-scanner agent for community sentiment and reception
- Additional targeted deep searches if gaps remain
Phase 4: Synthesis
Goal: Extract the essential insight from all research. Main agent executes this.
- What is the structural pattern across all findings?
- What is the root cause / driving force?
- What does this mean for the topic's future?
- Distill into 1-3 key insights with supporting evidence chains
Phase 5: Proposal
Goal: Actionable proposals with counter-argument verification.
- Generate 2+ proposals based on Phase 4 insights
- Each proposal includes:
- Summary and expected impact
- Pros / cons / risks
- Implementation approach
- Evidence chain (fact → inference → conclusion)
- Launch
counter-argument agent to stress-test each proposal
- Revise proposals based on counter-arguments
Repo Analysis Mode
/think <topic> github.com/owner/repo
│
Phase 0: Repo Analysis (understand the repository)
│ ├─ repo-analyzer: code, features, Issues/PRs
│ ├─ Build feature map
│ └─ ★ Confirm feature map with user
│
Phase 1: Scoping + Deep Search (competitor/prior art survey)
│ ├─ Research design scoped to repository's domain
│ └─ Gemini/Perplexity MCP auto-execution
│
Phase 2-3: Research + Deep Dive (competitor analysis)
│
Phase 4: Gap Analysis (identify differentials)
│ ├─ Feature comparison matrix
│ ├─ Positioning analysis (strengths/weaknesses/opportunities/threats)
│ └─ Essence: why chosen / why not chosen
│
Phase 5: Roadmap Proposal
├─ Short/mid/long-term prioritized actions
├─ 2 roadmap variants
└─ counter-argument verification
★ = User interaction point
Phase 0: Repo Analysis
- Launch
repo-analyzer agent with the GitHub URL
- Build feature map from analysis results
- Ask user to confirm/correct the feature map before proceeding
Phase 4 (Repo Mode): Gap Analysis
Instead of general synthesis, perform:
- Feature comparison matrix (this repo vs competitors)
- Positioning analysis with axes relevant to the domain
- Identify: "Why would someone choose this over alternatives?"
- Identify: "Why would someone NOT choose this?"
Phase 5 (Repo Mode): Roadmap Proposal
- Generate 2 roadmap variants:
- Variant A: Focus on deepening existing strengths
- Variant B: Focus on addressing critical gaps
- Each with short-term (1-3 months), mid-term (3-6 months), long-term (6-12 months)
- Launch
counter-argument agent
- Present both variants with counter-argument results
Deep Search Usage
MCP tools for auto-execution (no manual user action needed):
| MCP | Model | Cost | Usage |
|---|
mcp__gemini-deepsearch__deep_search | Gemini Deep Research | Free (250/day) | Primary research |
mcp__perplexity__perplexity_research | sonar-deep-research | ~$0.4-1.3/call | Supplemental, top axes only |
Cost management: Run Gemini first for all axes → Perplexity for top 1-3 axes only.
Sub-Agents
| Agent | Role | File |
|---|
repo-analyzer | Collect GitHub repo features, Issues/PRs, external reviews | agents/repo-analyzer.md |
deep-researcher | Web/SNS search to supplement Deep Search results. Collector only | agents/deep-researcher.md |
case-analyzer | Detailed analysis of individual cases (outcomes, success factors, reception) | agents/case-analyzer.md |
social-scanner | X/Reddit/HackerNews/community sentiment research | agents/social-scanner.md |
source-verifier | Validate all URLs exist + check claim consistency | agents/source-verifier.md |
counter-argument | Challenge proposals: counter-arguments, logical leaps, risks | agents/counter-argument.md |
Output
Save to workspace/{topic}/:
repo-analysis.md — Repository analysis & feature map (repo mode only)
research.md — Collected information with sources
analysis.md — Deep dive analysis
proposal.md — Final proposals / roadmap (the deliverable)
Quality Criteria
- All factual claims have source URLs
- 2+ proposals (comparable alternatives)
- Each proposal has pros / cons / risks
- source-verifier: all URLs validated
- counter-argument: all proposals stress-tested
- Logic chain (fact → inference → conclusion) explainable to a third party