Initial commit

.claude-plugin/plugin.json

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+{
+  "name": "ultrathink",
+  "description": "Invoke deep sequential thinking for complex problem-solving. Use when the user says 'use ultrathink', 'ultrathink', or when tackling problems that require careful step-by-step reasoning, planning, hypothesis generation, or multi-step analysis.",
+  "version": "1.0.0",
+  "author": {
+    "name": "Alberto Leal"
+  },
+  "skills": [
+    "./"
+  ]
+}

README.md

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+# ultrathink
+
+Invoke deep sequential thinking for complex problem-solving. Use when the user says 'use ultrathink', 'ultrathink', or when tackling problems that require careful step-by-step reasoning, planning, hypothesis generation, or multi-step analysis.

SKILL.md

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+---
+name: ultrathink
+description: "Invoke deep sequential thinking for complex problem-solving. Use when the user says 'use ultrathink', 'ultrathink', or when tackling problems that require careful step-by-step reasoning, planning, hypothesis generation, or multi-step analysis."
+license: MIT
+---
+
+# Ultrathink
+
+Ultrathink activates the Sequential Thinking MCP tool (`mcp__sequential_thinking__sequentialthinking`) to enable deep, structured reasoning through complex problems.
+
+## When to Use
+
+Invoke ultrathink when:
+
+- User explicitly requests it ("use ultrathink", "ultrathink this")
+- Complex problems requiring step-by-step decomposition
+- Planning and design with room for revision
+- Analysis that might need course correction
+- Problems where full scope isn't initially clear
+- Multi-step solutions requiring maintained context
+- Situations requiring hypothesis generation and verification
+
+## How to Use
+
+Call the sequential thinking tool with structured thoughts:
+
+```
+mcp__sequential_thinking__sequentialthinking:
+  thought: "Your current thinking step"
+  nextThoughtNeeded: true/false
+  thoughtNumber: 1
+  totalThoughts: 5 (estimate, can adjust)
+```
+
+### Parameters
+
+| Parameter | Type | Required | Description |
+|-----------|------|----------|-------------|
+| `thought` | string | Yes | Current thinking step - analysis, revision, question, or realization |
+| `nextThoughtNeeded` | boolean | Yes | True if more thinking needed, false when done |
+| `thoughtNumber` | integer | Yes | Current thought number in sequence |
+| `totalThoughts` | integer | Yes | Estimated total thoughts (can adjust up/down) |
+| `isRevision` | boolean | No | Whether this revises previous thinking |
+| `revisesThought` | integer | No | Which thought number is being reconsidered |
+| `branchFromThought` | integer | No | Branching point thought number |
+| `branchId` | string | No | Branch identifier |
+| `needsMoreThoughts` | boolean | No | Signal that more thoughts needed at "end" |
+
+### Key Capabilities
+
+1. **Dynamic adjustment**: Revise total thought count as understanding evolves
+2. **Revision support**: Question or revise previous thoughts
+3. **Branching**: Explore alternative approaches from any point
+4. **Hypothesis cycle**: Generate hypothesis, verify, repeat until satisfied
+5. **Non-linear thinking**: Don't need to build linearly - can backtrack
+
+### Process Pattern
+
+1. Start with initial estimate of needed thoughts
+2. Break down the problem systematically
+3. Question or revise previous thoughts as needed
+4. Generate solution hypotheses when appropriate
+5. Verify hypotheses against the chain of thought
+6. Add more thoughts if needed, even at the "end"
+7. Express uncertainty when present
+8. Set `nextThoughtNeeded: false` only when truly done
+
+### Example
+
+```
+Thought 1: "Let me analyze this authentication bug. The user reports login failures after password reset..."
+Thought 2: "Looking at the code flow: reset generates token -> user clicks link -> new password set. The issue might be..."
+Thought 3: "Hypothesis: The session isn't being invalidated after password change. Let me verify..."
+Thought 4 (revision): "Actually, reconsidering thought 2 - the token expiry might be the issue, not session..."
+Thought 5: "Verified: Token expiry is set to 1 hour but email delivery can take longer. Solution: extend to 24 hours."
+```
+
+## Best Practices
+
+- Start with reasonable thought estimate (3-7 for most problems)
+- Don't hesitate to revise or add thoughts
+- Mark revisions with `isRevision: true` and `revisesThought: N`
+- Express uncertainty rather than guessing
+- Use branching for exploring alternatives
+- Only set `nextThoughtNeeded: false` when confident in solution

plugin.lock.json

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+    "version": "1.0.0"
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