diff --git a/src/lib/api/projects.ts b/src/lib/api/projects.ts
index af3017702..973a3cb9f 100644
--- a/src/lib/api/projects.ts
+++ b/src/lib/api/projects.ts
@@ -21,8 +21,13 @@ import type {
   SentryProject,
 } from "../../types/index.js";
 
-import { cacheProjectsForOrg } from "../db/project-cache.js";
+import {
+  cacheProjectsForOrg,
+  setCachedProject,
+  setCachedProjectByDsnKey,
+} from "../db/project-cache.js";
 import { getCachedOrganizations } from "../db/regions.js";
+import { parseDsn } from "../dsn/parser.js";
 import { type AuthGuardSuccess, withAuthGuard } from "../errors.js";
 import { logger } from "../logger.js";
 import { getApiBaseUrl } from "../sentry-client.js";
@@ -190,6 +195,32 @@ export async function createProjectWithDsn(
   const project = await createProject(orgSlug, teamSlug, body);
   const dsn = await tryGetPrimaryDsn(orgSlug, project.slug);
   const url = buildProjectUrl(orgSlug, project.slug);
+
+  // Seed project_cache so the next command doesn't re-resolve via API
+  try {
+    const parsed = dsn ? parseDsn(dsn) : null;
+    if (parsed?.orgId) {
+      setCachedProject(parsed.orgId, parsed.projectId, {
+        orgSlug,
+        orgName: orgSlug,
+        projectSlug: project.slug,
+        projectName: project.name,
+        projectId: project.id,
+      });
+    }
+    if (parsed?.publicKey) {
+      setCachedProjectByDsnKey(parsed.publicKey, {
+        orgSlug,
+        orgName: orgSlug,
+        projectSlug: project.slug,
+        projectName: project.name,
+        projectId: project.id,
+      });
+    }
+  } catch {
+    // Best-effort — cache failure should not break project creation
+  }
+
   return { project, dsn, url };
 }
 
diff --git a/src/lib/init/wizard-runner.ts b/src/lib/init/wizard-runner.ts
index 604ede635..9cab102d4 100644
--- a/src/lib/init/wizard-runner.ts
+++ b/src/lib/init/wizard-runner.ts
@@ -728,6 +728,19 @@ export async function runWizard(initialOptions: WizardOptions): Promise<void> {
   }
 
   handleFinalResult(result, spin, spinState);
+
+  // Eagerly populate dsn_cache so the next command doesn't re-scan files.
+  // The DSN is now in source code (written by apply-patchset), so detectDsn
+  // will find it and cache with the correct projectRoot and sourcePath.
+  // project_cache was already seeded by createProjectWithDsn.
+  if (!dryRun) {
+    try {
+      const { detectDsn } = await import("../dsn/index.js");
+      await detectDsn(directory);
+    } catch {
+      // Best-effort — cache seeding failure doesn't affect init result
+    }
+  }
 }
 
 function handleFinalResult(