majiayu000 Systematic Thinking
Systematic thinking is a structured methodology for decomposing complex problems and arriving at root causes through evidence-based reasoning. Use this skill for debugging, investigation, and any problem where the true cause is not immediately apparent.
When to Use
- Debugging issues where surface symptoms don't reveal the cause
- Analyzing incidents or failures with multiple potential factors
- Investigating why something isn't working as expected
- Breaking down complex problems into actionable components
- Any task where quick conclusions have led to incomplete fixes
The 5 Phases
Problem Decomposition - Break the issue into discrete components. What exactly is failing? Where does it manifest?
Evidence Gathering - Collect data before forming conclusions. Logs, traces, reproduction steps, environment details.
Hypothesis Formation - Form specific, testable hypotheses. Not "something is wrong" but "X causes Y because Z."
Testing & Verification - Test hypotheses systematically. Verify assumptions. Reproduce the issue in isolation.
Root Cause Focus - Distinguish symptoms from causes. Keep asking "why" until you reach the fundamental cause.
Red Flags
- Jumping to solutions before fully understanding the problem
- Focusing on symptoms instead of root causes
- Assuming without verification
- Ignoring contradictory evidence
- Stopping at the first plausible explanation
- Fixing the same issue repeatedly
See Also
- systematic-debugging - The rigid debugging companion skill for test-first debugging discipline