diff --git a/.github/workflows/autonomous-cycle.yml b/.github/workflows/autonomous-cycle.yml
index 0c38c92..135fa63 100644
--- a/.github/workflows/autonomous-cycle.yml
+++ b/.github/workflows/autonomous-cycle.yml
@@ -34,7 +34,7 @@ jobs:
       - run: node scripts/run-autonomous-cycle.mjs
         env:
           ARENA_URL: https://polymarket-site-eta.vercel.app
-          EXPECTED_BUILD: "88"
+          EXPECTED_BUILD: "89"
           RUNTIME_BRANCH: runtime-state
           RUNTIME_STATE_PATH: runtime/state.json
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
index 5c12dcd..e938606 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ market snapshots. During an outage, cycles continue locally; cached entries are
 allowed for 90 minutes, older snapshots become mark-only, and all cached data
 expires after 24 hours.
 
-Build 88 adds a headless GitHub Actions runtime that checks the production site
+Build 89 adds a headless GitHub Actions runtime that checks the production site
 at seven minutes past every hour, continues from the previous agent snapshot,
 and runs the next due paper cycle even when no browser is open. It writes a
 sanitized snapshot to the `runtime-state` branch and `/api/state` uses that as a
diff --git a/index.html b/index.html
index 56ee3b6..50150d6 100644
--- a/index.html
+++ b/index.html
@@ -341,7 +341,7 @@ footer{margin-top:34px;padding-top:22px;border-top:1px solid var(--border);color
   <nav class="topnav">
     <div class="brand">
       <div class="logo">🏆</div>
-      <div><div class="brand-name">Polymarket Arena</div><div class="brand-sub">10 agents · 5 core + 5 aggressive</div><div class="build-badge">Adaptive strategy 59 · shock strategy 3 · autonomous runtime 1 · build 88</div></div>
+      <div><div class="brand-name">Polymarket Arena</div><div class="brand-sub">10 agents · 5 core + 5 aggressive</div><div class="build-badge">Adaptive strategy 59 · shock strategy 3 · autonomous runtime 1 · build 89</div></div>
     </div>
     <div class="tabs" id="tabs">
       <button class="tab" data-tab="overview">Overview</button>
@@ -363,7 +363,7 @@ footer{margin-top:34px;padding-top:22px;border-top:1px solid var(--border);color
   <div class="personal-banner" id="personalBanner">
     <b>Personal research mode.</b> This copy is for your own analysis, paper tracking, and manual trade research only. It does not pool money, onboard investors, custody funds, bypass eligibility rules, or place orders without your manual approval.
   </div>
-  <div class="live-build-banner"><b>Build 88 active:</b> The public paper agents now have an hourly autonomous runner that continues when every user device is closed. A sanitized agent-only snapshot is written to a separate GitHub runtime branch and becomes the shared read-only fallback while Neon and Blob are unavailable. Personal accounts, emails, passwords, allocations, and live-money settings never enter that snapshot. The five aggressive agents retain Strategy 3's two-cent-stressed 12-hour shock fades, event deduplication, and forward demotion. Profits are not guaranteed.</div>
+  <div class="live-build-banner"><b>Build 89 active:</b> The public paper agents now have an hourly autonomous runner that continues when every user device is closed. A sanitized agent-only snapshot is written to a separate GitHub runtime branch and becomes the shared read-only fallback while Neon and Blob are unavailable. Empty initialization snapshots are rejected, so a run cannot publish until it has analyzed live markets and produced agent decisions. Personal accounts, emails, passwords, allocations, and live-money settings never enter that snapshot. The five aggressive agents retain Strategy 3's two-cent-stressed 12-hour shock fades, event deduplication, and forward demotion. Profits are not guaranteed.</div>
 
   <!-- ============ OVERVIEW ============ -->
   <section class="tabpanel" data-tab="overview">
@@ -745,7 +745,7 @@ footer{margin-top:34px;padding-top:22px;border-top:1px solid var(--border);color
   </section>
 
   <footer>
-    Build 88 · Adaptive strategy 59 · Shock strategy 3 · Autonomous runtime 1 · Offline runtime 2 · Maker research 3 · Agent learning 3 · Paper trading only · Live prices from Polymarket's public Gamma and CLOB APIs · Not financial advice ·
+    Build 89 · Adaptive strategy 59 · Shock strategy 3 · Autonomous runtime 1 · Offline runtime 2 · Maker research 3 · Agent learning 3 · Paper trading only · Live prices from Polymarket's public Gamma and CLOB APIs · Not financial advice ·
     <a class="market-link" href="https://github.com/theodore-song/polymarket-analyst" target="_blank" rel="noopener">Source on GitHub</a>
   </footer>
 </div>
@@ -774,7 +774,7 @@ const POLITICS_TREND_MIN_HOLD_HOURS = 72;
 const EXIT_CONFIRM_HOURS = 6;
 const AGENTS_KEY = "pma_agents_v2";
 const SUG_KEY = "pma_suggestions_v5";
-const BUILD_VERSION = 88;
+const BUILD_VERSION = 89;
 const AGENT_LEARNING_VERSION = 3;
 const SUGGESTION_ENGINE_VERSION = 59;
 const MAKER_STRATEGY_VERSION = 3;
@@ -6785,7 +6785,7 @@ if("serviceWorker" in navigator){navigator.serviceWorker.register("/sw.js").catc
     btn.disabled=true;btn.textContent="Starting…";
     try{
       SNAP_TS=nowIso();AGENTS.forEach(a=>recordSnapshot(st.agents[a.id]));SNAP_TS=null;
-      st.seeded=true;st.date=todayStr();st.last_run=nowIso();st.last_cycle_hour=null;saveState(st);
+      st.seeded=true;st.date=todayStr();st.last_run=null;st.last_cycle_hour=null;saveState(st);
       await runDailyCycle();renderAll();toast("Live paper tracking started from a clean zero baseline.");
     }
     catch(e){setStatus("start error — click Run",false);}
diff --git a/scripts/run-autonomous-cycle.mjs b/scripts/run-autonomous-cycle.mjs
index c44332c..c5f90d7 100644
--- a/scripts/run-autonomous-cycle.mjs
+++ b/scripts/run-autonomous-cycle.mjs
@@ -24,7 +24,7 @@ function sleep(ms) {
   return new Promise(resolve => setTimeout(resolve, ms));
 }
 
-export function validateRuntimeSnapshot(snapshot, expectedBuild = 0) {
+export function validateRuntimeSnapshot(snapshot, expectedBuild = 0, { allowIncomplete = false } = {}) {
   if (!snapshot || typeof snapshot !== "object" || !snapshot.items || typeof snapshot.items !== "object") {
     throw new Error("Autonomous export is not a state snapshot");
   }
@@ -47,7 +47,12 @@ export function validateRuntimeSnapshot(snapshot, expectedBuild = 0) {
   if (expectedBuild && Number(snapshot.build_version) !== Number(expectedBuild)) {
     throw new Error(`Expected Build ${expectedBuild}, received Build ${snapshot.build_version}`);
   }
-  if ((suggestions.suggestions || []).length > 300) throw new Error("Runtime suggestion snapshot exceeds the 300-item public limit");
+  const suggestionCount = (suggestions.suggestions || []).length;
+  if (suggestionCount > 300) throw new Error("Runtime suggestion snapshot exceeds the 300-item public limit");
+  if (!allowIncomplete && suggestionCount === 0) throw new Error("Runtime cycle produced no live suggestions");
+  if (!allowIncomplete && Object.values(agents.agents).some(agent => !agent?.lastDecision)) {
+    throw new Error("Runtime cycle did not produce a decision for every agent");
+  }
   const bytes = Buffer.byteLength(JSON.stringify(snapshot));
   if (bytes > MAX_STATE_BYTES) throw new Error(`Runtime snapshot is ${bytes} bytes; limit is ${MAX_STATE_BYTES}`);
   return { snapshot, bytes, agents, suggestions };
@@ -123,10 +128,10 @@ async function main() {
   const branch = process.env.RUNTIME_BRANCH || "runtime-state";
   const pathname = process.env.RUNTIME_STATE_PATH || "runtime/state.json";
   const arenaUrl = (process.env.ARENA_URL || "https://polymarket-site-eta.vercel.app").replace(/\/$/, "");
-  const expectedBuild = Number(required("EXPECTED_BUILD", "88"));
+  const expectedBuild = Number(required("EXPECTED_BUILD", "89"));
   await ensureRuntimeBranch(repository, branch);
   const prior = await readRuntimeFile(repository, branch, pathname);
-  if (prior.snapshot) validateRuntimeSnapshot(prior.snapshot);
+  if (prior.snapshot) validateRuntimeSnapshot(prior.snapshot, 0, { allowIncomplete: true });
 
   const browser = await chromium.launch({ headless: true });
   try {
diff --git a/scripts/test-autonomous-runtime.mjs b/scripts/test-autonomous-runtime.mjs
index 5af5ed4..1d609b7 100644
--- a/scripts/test-autonomous-runtime.mjs
+++ b/scripts/test-autonomous-runtime.mjs
@@ -8,7 +8,7 @@ const workflow = fs.readFileSync(new URL("../.github/workflows/autonomous-cycle.
 const runner = fs.readFileSync(new URL("./run-autonomous-cycle.mjs", import.meta.url), "utf8");
 const build = Number(index.match(/const BUILD_VERSION = (\d+);/)?.[1]);
 
-assert.equal(build, 88);
+assert.equal(build, 89);
 assert.deepEqual([...ALLOWED_RUNTIME_KEYS].sort(), ["pma_agents_v2", "pma_suggestions_v5"]);
 assert.match(index, /function collectPublicRuntimeItems\(\)/);
 assert.match(index, /const PUBLIC_RUNTIME_KEYS=Object\.freeze\(\[AGENTS_KEY,SUG_KEY\]\)/);
@@ -19,11 +19,11 @@ assert.match(api, /runtime-state\/runtime\/state\.json/);
 assert.match(api, /sanitizeGithubRuntimeState/);
 assert.match(workflow, /cron: "7 \* \* \* \*"/);
 assert.match(workflow, /contents: write/);
-assert.match(workflow, /EXPECTED_BUILD: "88"/);
+assert.match(workflow, /EXPECTED_BUILD: "89"/);
 assert.match(runner, /MAX_STATE_BYTES = 900_000/);
 
 const agentIds = ["value", "momentum", "favorite", "longshot", "diversifier", "catalyst", "reversal", "breakout", "tailalpha", "conviction"];
-const agents = Object.fromEntries(agentIds.map(id => [id, { cash: 10000, positions: [] }]));
+const agents = Object.fromEntries(agentIds.map(id => [id, { cash: 10000, positions: [], lastDecision: { mode: "test" } }]));
 const snapshot = {
   schema_version: 1,
   build_version: build,
@@ -31,11 +31,12 @@ const snapshot = {
   last_cycle_hour: "2026-08-21T20|v59",
   items: {
     pma_agents_v2: JSON.stringify({ seeded: true, last_cycle_hour: "2026-08-21T20|v59", agents }),
-    pma_suggestions_v5: JSON.stringify({ suggestions: [] }),
+    pma_suggestions_v5: JSON.stringify({ suggestions: [{ market_id: "test" }] }),
   },
 };
 assert.equal(validateRuntimeSnapshot(snapshot, build).agents.seeded, true);
 assert.throws(() => validateRuntimeSnapshot({ ...snapshot, items: { ...snapshot.items, pma_paper_accounts_v1: "{}" } }, build), /unexpected keys/);
 assert.throws(() => validateRuntimeSnapshot({ ...snapshot, build_version: build - 1 }, build), /Expected Build/);
+assert.throws(() => validateRuntimeSnapshot({ ...snapshot, items: { ...snapshot.items, pma_suggestions_v5: JSON.stringify({ suggestions: [] }) } }, build), /no live suggestions/);
 
 console.log(`autonomous runtime verified for Build ${build}`);
diff --git a/sw.js b/sw.js
index 5e5f2ed..18033a3 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-const CACHE_NAME = "polymarket-arena-build-88";
+const CACHE_NAME = "polymarket-arena-build-89";
 const APP_SHELL = ["/", "/index.html", "/personal.html", "/cycle-worker.js"];
 
 self.addEventListener("install", event => {