2nd/10_Wiki/Topic_General/From_Other/Purpose.md

id, title, category, status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, verification_status, tags, raw_sources, last_reinforced, github_commit, tech_stack

id	title	category	status	canonical_id	aliases	duplicate_of	source_trust_level	confidence_score	verification_status	tags	raw_sources	last_reinforced	github_commit	tech_stack
wiki-2026-0508-purpose	Purpose	10_Wiki/Topics	verified	self	Telos Mission Intent Goal-Setting Why	none	A	0.85	applied	philosophy psychology leadership design		2026-05-10	pending	language framework theory teleological-design

Purpose

매 한 줄

"매 know your why before you optimize your how.". 매 Aristotle 의 telos 부터 매 Sinek 의 Start with Why, 매 Frankl 의 meaning therapy 까지 — 매 purpose = 매 why an entity (person, system, product) exists. 매 2026 software/AI 에서 매 purpose 명시는 매 alignment, scope creep 회피, 매 LLM agent goal-setting 의 foundation.

매 핵심

매 4 levels of purpose

• Existential (인간): 매 Frankl — 매 meaning vs pleasure vs power.
• Organizational: 매 mission statement — 매 "why does this company exist?".
• Product: 매 user job-to-be-done (Christensen) — 매 "what hire is this product made for?".
• System/Code: 매 module purpose — 매 "what 1 thing does this module own?".

매 purpose articulation patterns

• Sinek's Golden Circle: WHY → HOW → WHAT.
• JTBD: "When [situation], I want to [motivation], so I can [outcome]".
• OKR: Objective (qualitative why) + Key Results (measurable).
• Module docstring: 1-line purpose + invariants.

매 응용

1. Code: 매 module 의 1-sentence purpose 가 unclear 면 — split or rename.
2. LLM agent: 매 system prompt 의 첫 줄은 purpose — 매 alignment anchor.
3. Career: 매 ikigai (것 + 잘 + need + paid).
4. Product: 매 JTBD interview → feature prioritization.

💻 패턴

Pattern 1: Module-level purpose docstring

"""
auth/jwt.py

PURPOSE: 매 issue and verify JWT tokens for our API authentication.
INVARIANTS:
  - Tokens always include `iss` claim.
  - Verification rejects tokens with `alg=none`.
NON-GOALS:
  - Session storage (see auth/session.py).
  - Refresh-token rotation (see auth/refresh.py).
"""

Pattern 2: LLM agent system prompt

SYSTEM = """You are a code-review assistant.

PURPOSE: 매 surface non-obvious bugs, security issues, and style violations
in the user's pull request, prioritized by severity.

NON-GOALS:
  - Generating new code (the user does that).
  - Auto-fixing without confirmation.

CONSTRAINTS:
  - Always cite file:line for every claim.
  - Refuse to comment on out-of-scope files.
"""

Pattern 3: JTBD interview template

job_to_be_done:
  situation: "When I'm onboarding a new team member"
  motivation: "I want a single doc with their day-1 setup"
  outcome: "so they can ship a real PR by end of week 1"
  current_alternatives: [README, Notion page, ad-hoc Slack DMs]
  hire_criteria: [single-source, executable, verified]

Pattern 4: OKR framing

objective: "매 Make AI Act compliance trivial for EU SMBs"
key_results:
  - "Onboard 100 SMBs by Q3"
  - "Reduce time-to-compliance from 30d → 5d"
  - "NPS ≥ 50"

Pattern 5: Purpose-test for scope creep

def is_in_scope(feature, module_purpose) -> bool:
    """매 ask: 'does this feature serve the module's stated purpose?'"""
    # 매 if no, push to a different module or reject
    return feature.advances(module_purpose)

Pattern 6: 5-Whys to surface purpose

Q: Why are we building this dashboard?
A: To show metrics.
Q: Why?
A: So managers can see team health.
Q: Why?
A: So they can intervene early.
Q: Why?
A: To prevent burnout & attrition.
Q: Why?
A: Because attrition costs $200K/engineer.
→ 매 PURPOSE: "매 reduce attrition cost via early-burnout intervention".

매 결정 기준

상황	Tool
매 module/file design	1-sentence purpose docstring
매 LLM agent design	Purpose + non-goals + constraints in system prompt
매 product feature triage	JTBD + Purpose-test
매 organization strategy	Mission statement + OKRs
매 personal direction	Ikigai / 5-Whys

기본값: 매 1-sentence purpose 가 없으면 — 매 don't ship.

🔗 Graph

• 부모: Philosophy · Design Thinking
• 변형: Mission · Vision · Telos · Ikigai
• 응용: OKR
• Adjacent: Single Responsibility Principle (SRP)

🤖 LLM 활용

언제: 매 system prompt 첫 줄, 매 module docstring, 매 product brief, 매 strategy doc. 언제 X: 매 throwaway prototypes — 매 over-formalization slows iteration.

❌ 안티패턴

• No purpose: 매 module 이 "everything" 하면 — 매 god class.
• Purpose drift: 매 purpose 명시했지만 features 가 매 drift — 매 update or refactor.
• Aspirational nonsense: 매 "make the world better" — 매 unactionable.
• Purpose ≠ method: 매 "use React" 는 method, not purpose.

🧪 검증 / 중복

• Verified (Aristotle Nicomachean Ethics; Frankl Man's Search for Meaning; Sinek Start with Why; Christensen JTBD).
• 신뢰도 A (foundational philosophical + management canon).

🕓 Changelog

날짜	변경
2026-05-08	Phase 1
2026-05-10	Manual cleanup — 4 levels, JTBD/OKR/Golden Circle 패턴