diff --git a/src/usage-primer.test.ts b/src/usage-primer.test.ts
index 7ccb686..18e649b 100644
--- a/src/usage-primer.test.ts
+++ b/src/usage-primer.test.ts
@@ -54,7 +54,7 @@ vi.mock('./codex-warmup.js', () => ({
 }));
 
 describe('usage-primer', () => {
-  it('refreshes Codex usage before primer selection and allows 1% fresh usage', async () => {
+  it('refreshes Codex usage before primer selection and fires regardless of usage level', async () => {
     callOrder.length = 0;
     refreshAllCodexAccountUsage.mockClear();
     refreshActiveCodexUsage.mockClear();
@@ -68,7 +68,7 @@ describe('usage-primer', () => {
       expect.objectContaining({
         enabled: true,
         minIntervalMs: 18_000_000,
-        maxUsagePct: 1,
+        maxUsagePct: 100,
         maxD7UsagePct: 100,
       }),
       { ignoreZeroUsageWindow: true },
diff --git a/src/usage-primer.ts b/src/usage-primer.ts
index 97e7a0c..fad904a 100644
--- a/src/usage-primer.ts
+++ b/src/usage-primer.ts
@@ -26,10 +26,13 @@ const PRIMER_HOURS_KST = [8, 13, 18, 23];
 const KST_OFFSET_MS = 9 * 60 * 60 * 1000;
 const CLAUDE_PRIMER_TIMEOUT_MS = 60_000;
 const CODEX_PRIMER_MIN_INTERVAL_MS = 5 * 60 * 60 * 1000;
-// Codex's rate-limit read can report a freshly reset, otherwise idle account
-// as 1%. Treat that as still eligible so the real primer call can anchor the
-// 5h inference window at the fixed slot.
-const CODEX_PRIMER_MAX_USAGE_PCT = 1;
+// Fire the Codex primer unconditionally at every slot, mirroring the Claude
+// primer (which always fires unless the account is rate-limited). The 5h usage
+// level no longer gates the call (maxUsagePct=100), so a slot is never skipped
+// just because Codex happens to be partway through its window. The d7 gate
+// stays at 100 so we still skip an account whose weekly quota is exhausted,
+// which is the Codex analogue of Claude's rate-limit skip.
+const CODEX_PRIMER_MAX_USAGE_PCT = 100;
 const CODEX_PRIMER_MAX_D7_USAGE_PCT = 100;
 
 function resolveClaudeBinary(): string {