| name | blind-johari-window |
| description | Use when assessing self-knowledge, team dynamics, personal strengths/weaknesses, "how do others see this", or when someone is confident about themselves without external input. Applies the Johari Window (Luft & Ingham, 1955) to locate what others see that you cannot. |
Johari Window
Overview
Joseph Luft & Harrington Ingham (1955): all knowledge about a person (or project, or codebase) splits on two axes — known/unknown to self × known/unknown to others — giving four quadrants:
| Known to self | Unknown to self |
|---|
| Known to others | Open (Arena) | Blind Spot |
| Unknown to others | Hidden (Façade) | Unknown |
The Blind quadrant can only shrink one way: feedback from others. No amount of introspection moves it. The Unknown quadrant shrinks only through new shared experience (trying things neither party has seen).
When to Use
- Self-assessments: "am I good at X", "is my code readable", "is this design clear"
- Team friction where each side is confident the other is the problem
- Any confidence about how one's work lands with others, formed without asking others
The Procedure
- Map the four quadrants for the target. Force at least one concrete entry per quadrant. An empty Blind quadrant means you haven't asked anyone — not that it's empty.
- Name the feedback sources that could shrink the Blind quadrant (user, reviewer, test suite, analytics, a second model). Data from others is the only tool that works here.
- Pick the cheapest source and actually consult it before finalizing the assessment.
- For the Unknown quadrant, name one experiment that would expose new territory.
Agent Application
For an AI agent, "others" = the user, tests, runtime output, logs, a second reviewer. Any claim about how output will be received (readability, clarity, usefulness) sits in the Blind quadrant until an external source confirms it.
Common Mistakes
- Filling the Blind quadrant with guesses about what others think — that's the Open quadrant wearing a costume. Blind entries must come FROM others.
- Treating disclosure (shrinking Hidden) as the fix when the problem is Blind. Talking more ≠ learning more.
- Asking only people who share your context — they share your blind spots too (see blind-curse-of-knowledge).
