Sequential Thinking
SkillProductivityApply structured, reflective problem-solving for complex tasks requiring multi-step analysis, revision capability, and hypothesis verification. Use for complex problem decomposition, adaptive planning, analysis needing course correction, problems with unclear scope, multi-step solutions, and hypothesis-driven work.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Sequential Thinking skill
What this skill tells your AI
The instructions your AI receives, as published by duongthinh03/portfolio in .agents/skills/sequential-thinking/SKILL.md and read by ahel’s review.
Structured problem-solving via manageable, reflective thought sequences with dynamic adjustment.
When to Apply
- Complex problem decomposition
- Adaptive planning with revision capability
- Analysis needing course correction
- Problems with unclear/emerging scope
- Multi-step solutions requiring context maintenance
- Hypothesis-driven investigation/debugging
Core Process
1. Start with Loose Estimate
Thought 1/5: [Initial analysis]
Adjust dynamically as understanding evolves.
2. Structure Each Thought
- Build on previous context explicitly
- Address one aspect per thought
- State assumptions, uncertainties, realizations
- Signal what next thought should address
3. Apply Dynamic Adjustment
- Expand: More complexity discovered → increase total
- Contract: Simpler than expected → decrease total
- Revise: New insight invalidates previous → mark revision
- Branch: Multiple approaches → explore alternatives
4. Use Revision When Needed
Thought 5/8 [REVISION of Thought 2]: [Corrected understanding]
- Original: [What was stated]
- Why revised: [New insight]
- Impact: [What changes]
5. Branch for Alternatives
Thought 4/7 [BRANCH A from Thought 2]: [Approach A]
Thought 4/7 [BRANCH B from Thought 2]: [Approach B]
Compare explicitly, converge with decision rationale.
6. Generate & Verify Hypotheses
Thought 6/9 [HYPOTHESIS]: [Proposed solution]
Thought 7/9 [VERIFICATION]: [Test results]
Iterate until hypothesis verified.
7. Complete Only When Ready
Mark final: Thought N/N [FINAL]
Complete when:
- Solution verified
- All critical aspects addressed
- Confidence achieved
- No outstanding uncertainties
Application Modes
Explicit: Use visible thought markers when complexity warrants visible reasoning or user requests breakdown.
Implicit: Apply methodology internally for routine problem-solving where thinking aids accuracy without cluttering response.
Scripts (Optional)
Optional scripts for deterministic validation/tracking:
scripts/process-thought.js- Validate & track thoughts with historyscripts/format-thought.js- Format for display (box/markdown/simple)
See README.md for usage examples. Use when validation/persistence needed; otherwise apply methodology directly.
References
Load when deeper understanding needed:
references/core-patterns.md- Revision & branching patternsreferences/examples-api.md- API design examplereferences/examples-debug.md- Debugging examplereferences/examples-architecture.md- Architecture decision examplereferences/advanced-techniques.md- Spiral refinement, hypothesis testing, convergencereferences/advanced-strategies.md- Uncertainty, revision cascades, meta-thinking
Signals
- GitHub stars
- 85
- Forks
- 78
- Last commit
- Jun 2026
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sequential-thinking-duongthinh03- Source
- github.com/duongthinh03/portfolio