diff --git a/docs/CURRENT/CATALOGS/WBS_PROGRESS_TRACKER.csv b/docs/CURRENT/CATALOGS/WBS_PROGRESS_TRACKER.csv
index c9e0eac5..a4ddb119 100644
--- a/docs/CURRENT/CATALOGS/WBS_PROGRESS_TRACKER.csv
+++ b/docs/CURRENT/CATALOGS/WBS_PROGRESS_TRACKER.csv
@@ -24,4 +24,4 @@ AEG-X-011,S4,Cross,Golden vector 고도화,BLOCKED,TBD,"AGENTS.md: Algorithm cha
 AEG-VS-09-01,S4,VS-09,BuildEvidenceSnapshot,BLOCKED,TBD,"CLAUDE.md: Evidence requires Phase 1 results",PM/Architect,"Gate 2 prerequisite. Blocked by Phase 1."
 AEG-VS-10-01,S4,VS-10,GenerateSellDecision,BLOCKED,TBD,"CLAUDE.md: Model must pass PBO/DSR validation",PM/Architect,"Gate 3 prerequisite. Blocked by Phase 1."
 AEG-VS-19-01,S5,VS-19,RunFrozenBacktest,BLOCKED,TBD,"CLAUDE.md: Requires evidence from Phase 1-4",PM/Architect,"Gate 3 prerequisite. Blocked by Phase 1."
-PHASE-1-SHADOW-RUN,S0-S5,Cross,252+ Trading Day Shadow Run,BLOCKED,TBD,"docs/CURRENT/PHASE-1_SHADOW_RUN_STATUS_CORRECTION.md; docs/CURRENT/AEG-X-004_DBUP_EVIDENCE.md; docs/CURRENT/PHASE-1_REQUEUE_READINESS.md; docs/CURRENT/PHASE-1_EXECUTION_EVIDENCE_PLAN.md; db/migrations/0032_shadow_run_queued_status_contract.sql; logs/phase-1-execution.log; logs/host-startup-20260804-173000.log",김재현/BE/SRE,"Owner 김재현; due 2026-08-06 KST. Concrete evidence plan prepared: server VersionSet, DBA receipt, new IDs, 202 enqueue response, and observation artifacts. Legacy EXECUTE_PHASE_1_NOW.ps1 is disallowed. Status changes only after actual artifacts are preserved."
+PHASE-1-SHADOW-RUN,S0-S5,Cross,252+ Trading Day Shadow Run,BLOCKED,TBD,"docs/CURRENT/PHASE-1_SHADOW_RUN_STATUS_CORRECTION.md; docs/CURRENT/AEG-X-004_DBUP_EVIDENCE.md; docs/CURRENT/PHASE-1_REQUEUE_READINESS.md; docs/CURRENT/PHASE-1_EXECUTION_EVIDENCE_PLAN.md; docs/CURRENT/PHASE-1_PREFLIGHT_20260806.md; db/migrations/0032_shadow_run_queued_status_contract.sql; logs/phase-1-execution.log; logs/host-startup-20260804-173000.log",김재현/BE/SRE,"Owner 김재현; due 2026-08-06 KST. Read-only preflight: PostgreSQL reachable, Shadow API 5002 unavailable, approved server-side VersionSet absent. No enqueue or mutation performed. Repeat after activating approved host/VersionSet; then collect DBA receipt, new IDs, 202 response, and observation artifacts."
diff --git a/docs/CURRENT/PHASE-1_PREFLIGHT_20260806.md b/docs/CURRENT/PHASE-1_PREFLIGHT_20260806.md
new file mode 100644
index 00000000..5eebd9a9
--- /dev/null
+++ b/docs/CURRENT/PHASE-1_PREFLIGHT_20260806.md
@@ -0,0 +1,35 @@
+# Phase 1 Preflight Evidence — 2026-08-06
+
+## Traceability
+
+- WBS: `PHASE-1-SHADOW-RUN`
+- Owner: `김재현`
+- Procedure: `docs/CURRENT/PHASE-1_EXECUTION_EVIDENCE_PLAN.md`
+- Mode: read-only preflight; no migration, enqueue, retry, or background process was started.
+
+## Actual checks
+
+```text
+Test-NetConnection 127.0.0.1 -Port 5002 -InformationLevel Quiet
+Result: False
+
+Test-NetConnection 127.0.0.1 -Port 5432 -InformationLevel Quiet
+Result: True
+
+GET http://127.0.0.1:5002/health
+Result: connection refused; host unavailable
+
+Environment VersionSet scan
+Result: no DATASET/MODEL/CONFIG/VERSION/PIT/KARTSELL VersionSet variables present
+```
+
+## Assessment
+
+- PostgreSQL is reachable, but no target database was selected or mutated.
+- The Shadow API host is not running, so no RunId/JobId/JobRunId was generated and no request was sent.
+- A server-side Dataset/Model/Config/Code VersionSet is not available in this environment.
+- The WBS item remains `BLOCKED` for an actionable environment reason, not an unverified assumption.
+
+## Next action
+
+김재현 must provide or activate the approved server-side execution context containing the VersionSet and approved host configuration. Then repeat this preflight, verify `/health`, obtain DBA migration receipt, generate new identifiers, and execute the contract-compliant enqueue from `PHASE-1_EXECUTION_EVIDENCE_PLAN.md`.