docs(agent): add anti-local-thinking rules — NEVER #10 strengthen (disprove before report), NEVER #11 (no mechanical apply), ALWAYS #9 (project history cross-ref), Bug Report Protocol

.agents/AGENT.md

@@ -19,7 +19,13 @@ description: 모든 작업에 자동 적용되는 에이전트 행동 규칙.
 7. NEVER truncate error messages — always show the full error output
 8. NEVER say "구현 완료" or "동작 확인" without ACTUAL end-to-end test — import/문법 통과는 검증이 아님
 9. NEVER confuse "코드가 논리적으로 맞음" with "실제로 동작함" — 실행 로그가 없으면 미검증
-10. NEVER fix code by looking at only the immediate file — always trace the full data flow across ALL affected files (producer → consumer → side effects) before proposing a fix
+10. NEVER fix or audit code by looking at only the immediate file:
+    (a) Open the PRODUCER (who creates the data?) and CONSUMER (who reads/deletes?)
+    (b) Search for defense mechanisms (try-catch, dedup, idempotency guards)
+    (c) DISPROVE the bug before reporting — if a defense exists, it may be a false positive
+    (d) Report only bugs with a proven end-to-end triggering path
+    "I traced the flow" without opening actual files = violation.
+11. NEVER apply changes mechanically across files — every import, variable, function must have at least one callsite in the SAME file
 
 ## ALWAYS (필수)
 
@@ -31,6 +37,7 @@ description: 모든 작업에 자동 적용되는 에이전트 행동 규칙.
 6. ALWAYS read related existing code (minimum 3 files) before writing new code
 7. ALWAYS verify with real execution after implementation — trigger the actual flow, check logs (e.g. extension.log), confirm the expected result appeared
 8. ALWAYS distinguish "구현했다" vs "검증했다" when reporting to user — 테스트 안 했으면 명시
+9. ALWAYS cross-reference with project history (devlog, git log -5, Vikunja) when evaluating system state — code absence may mean "intentionally removed" or "deployed externally", not "unimplemented"
 
 ## Failure Protocol
 
@@ -52,6 +59,10 @@ description: 모든 작업에 자동 적용되는 에이전트 행동 규칙.
 4. `.agents/workflows/services.md` (service credentials & protocols)
 5. `.agents/workflows/` (action procedures)
 
+## Bug Report Protocol
+
+→ See `.agents/references/bug-report-protocol.md`
+
 ## PowerShell Notes
 
 - `curl` → PowerShell에서 `Invoke-WebRequest` 별칭. **반드시 `curl.exe`** 사용