chore: initialize from backend template 0a6dd0e

2026-08-13 20:31:02 +09:00
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+---
+title: Runbook — AUTH_TOKEN_MALFORMED (토큰 파싱 실패)
+category: AUTH
+error_codes: [AUTH_TOKEN_MALFORMED]
+severity: P3
+owner: oncall
+last_updated: 2026-06-15
+status: stub
+---
+
+# Runbook: AUTH_TOKEN_MALFORMED (`runbook://auth/token-malformed`)
+
+## Symptoms
+
+- HTTP 401 responses with `error.code=AUTH_TOKEN_MALFORMED`
+- Token present but fails JWT parse (not 3-part, non-base64, etc.)
+
+## Diagnosis
+
+- Inspect raw Authorization header value in logs
+- Check if token generation tooling has a bug
+
+## Action
+
+- Identify source of malformed tokens
+- Fix or update client token generation
+
+## Escalation
+
+- Escalate if spike suggests infrastructure issue
+
+---
+
+> **Stub**: Phase D2 — author body after domain adoption. (feature-operational-runbook-contract D9)