diff --git a/README.md b/README.md
index 8a6dff7..06892e4 100644
--- a/README.md
+++ b/README.md
@@ -239,13 +239,16 @@ back when it writes again.
 Detection is exact-match: a terminal keystroke racing a phone message
 can never false-flag. Muted projects are never flagged.
 
-Agents without that hook (Cursor, Windsurf, Copilot, Cline, Aider, OpenCode) have one
+Agents without that hook (Cursor, Windsurf, Copilot, Cline, Aider) have one
 other way in: a `hwip_ask` answer reporting `hwipState: "REMOTE"`. Their rule
 files therefore keep the after-real-work `hwip_ask` — the "Entering REMOTE
 without a prompt hook" preamble in `src/templates.ts` — so the phone always
 has a button to tap that starts the loop. The one exception is an answer sent
 with the phone's "send and exit": that turn carries out the instruction and
-ends without an ask. Agents with the hook drop that
+ends without an ask. OpenCode has no prompt hook either but leaves the
+preamble out: its after-work ask reached the phone on turns typed at the
+terminal, so it owes no ask in NORMAL, and a phone message to an OpenCode
+session gets the completion push rather than buttons. Agents with the hook drop that
 obligation while at the terminal — and their rule file carries only the
 NORMAL branch of the core (about a quarter of it), since it is read on every
 turn; the hook injects the REMOTE sections in full on the turn a phone
diff --git a/src/rules-sync.test.ts b/src/rules-sync.test.ts
index f0ef334..ce1a36e 100644
--- a/src/rules-sync.test.ts
+++ b/src/rules-sync.test.ts
@@ -43,7 +43,8 @@ describe('rules-sync: generated core is wired into the templates', () => {
 // hwip_ask. That is safe exactly where a prompt-submit hook can announce the
 // phone message that starts REMOTE. Only Gemini, Codex and Pi have that hook;
 // for every other agent a hwip_ask answer is the sole way in, so their rule
-// file must keep asking after real work or the phone loop can never begin.
+// file must keep asking after real work or the phone loop can never begin —
+// except OpenCode, which drops that door (see its test below).
 describe('rules-sync: REMOTE entry for agents without a prompt-submit hook', () => {
     const ENTRY = 'Entering REMOTE without a prompt hook';
 
@@ -55,7 +56,6 @@ describe('rules-sync: REMOTE entry for agents without a prompt-submit hook', ()
             tmpl.COPILOT_RULE,
             tmpl.CLINE_RULE,
             tmpl.AIDER_RULE,
-            tmpl.OPENCODE_RULE,
         ]) {
             expect(rule).toContain(ENTRY);
             expect(rule).toContain('overrides the "In NORMAL, end with nothing" clause');
@@ -73,6 +73,18 @@ describe('rules-sync: REMOTE entry for agents without a prompt-submit hook', ()
         expect(tmpl.PI_RULE).not.toContain(ENTRY);
     });
 
+    // OpenCode has no prompt hook either, but the preamble made it end NORMAL
+    // turns typed at the terminal with a hwip_ask that buzzed the phone
+    // (2026-10-29, OpenCode 2.1.3). Its 2.x plugin API has no per-turn hook to
+    // add one, so OpenCode gives up the ask-to-enter door instead: NORMAL
+    // owes nothing, and REMOTE still starts from an ask the agent chose to send.
+    it('OpenCode does not order a hwip_ask after NORMAL work', async () => {
+        const tmpl = await import('./templates.js');
+        expect(tmpl.OPENCODE_RULE).not.toContain(ENTRY);
+        expect(tmpl.OPENCODE_RULE).not.toContain('overrides the "In NORMAL, end with nothing" clause');
+        expect(tmpl.OPENCODE_RULE).toContain('In NORMAL, end with nothing');
+    });
+
     it('the preamble sits before the core so the override reads first', async () => {
         const tmpl = await import('./templates.js');
         const rule = tmpl.CURSOR_RULE;
@@ -118,7 +130,7 @@ describe('rules-sync: prompt-hook agents carry the NORMAL branch only', () => {
     // the exception the preamble would re-open the loop the user just left.
     it('agents without the hook exempt send-and-exit from the preamble ask', async () => {
         const tmpl = await import('./templates.js');
-        for (const rule of [tmpl.CURSOR_RULE, tmpl.WINDSURF_RULE, tmpl.COPILOT_RULE, tmpl.CLINE_RULE, tmpl.AIDER_RULE, tmpl.OPENCODE_RULE]) {
+        for (const rule of [tmpl.CURSOR_RULE, tmpl.WINDSURF_RULE, tmpl.COPILOT_RULE, tmpl.CLINE_RULE, tmpl.AIDER_RULE]) {
             // The preamble is hard-wrapped, so match on collapsed whitespace.
             expect(rule.replace(/\s+/g, ' ')).toContain('end without `hwip_ask`, however substantial the work');
         }
diff --git a/src/templates.test.ts b/src/templates.test.ts
index 697ed13..bdfb375 100644
--- a/src/templates.test.ts
+++ b/src/templates.test.ts
@@ -910,6 +910,10 @@ describe('templates.ts: the pi extension runs subagent panes view-only-by-push',
 describe('templates.ts: rules agree with the remote-hook registry', () => {
     const RULES = Object.entries(templates).filter(([name]) => name.endsWith('_RULE')) as [string, string][];
     const NO_HOOK_MARKER = 'Entering REMOTE without a prompt hook';
+    // Hook-less agents that leave the preamble out on purpose: their NORMAL
+    // ask reached the phone while the user sat at the terminal (templates.ts
+    // OPENCODE_RULE says why).
+    const PREAMBLE_OPT_OUT = ['opencode'];
 
     it('collects every rule', () => {
         expect(RULES.length).toBeGreaterThanOrEqual(9);
@@ -917,9 +921,9 @@ describe('templates.ts: rules agree with the remote-hook registry', () => {
 
     for (const [name, rule] of RULES) {
         const id = name.replace(/_RULE$/, '').toLowerCase();
-        const hasPromptHook = (REMOTE_HOOK_AGENTS as readonly string[]).includes(id);
-        it(`${name} ${hasPromptHook ? 'omits' : 'carries'} the no-hook REMOTE entry preamble`, () => {
-            if (hasPromptHook) expect(rule).not.toContain(NO_HOOK_MARKER);
+        const omits = (REMOTE_HOOK_AGENTS as readonly string[]).includes(id) || PREAMBLE_OPT_OUT.includes(id);
+        it(`${name} ${omits ? 'omits' : 'carries'} the no-hook REMOTE entry preamble`, () => {
+            if (omits) expect(rule).not.toContain(NO_HOOK_MARKER);
             else expect(rule).toContain(NO_HOOK_MARKER);
         });
     }
diff --git a/src/templates.ts b/src/templates.ts
index f1e5ce4..ca475db 100644
--- a/src/templates.ts
+++ b/src/templates.ts
@@ -20,7 +20,8 @@
 // hook note (a phone message) or by a `hwip_ask` answer. Only Gemini, Codex
 // and Pi have that hook (remoteHookCmd below). Every other agent's only door is the
 // ask itself — so for them the NORMAL branch must still send one after real
-// work, or the phone loop can never begin. That is REMOTE_ENTRY_NO_HOOK.
+// work, or the phone loop can never begin. That is REMOTE_ENTRY_NO_HOOK
+// (OpenCode excepted — OPENCODE_RULE says why).
 //
 // The same axis decides how much of the core the static rule file carries.
 // That file is read on every turn, and a session is NORMAL nearly all of the
@@ -138,7 +139,7 @@ operations (file reads, simple searches). Set priority "high" for
 errors/blockers.`;
 
 // REMOTE-entry preamble — agents with NO prompt-submit hook (Cursor, Windsurf,
-// Copilot, Cline, Aider, OpenCode). The shared core scopes Rules 1/2/8/9 to REMOTE
+// Copilot, Cline, Aider; OpenCode opts out, see OPENCODE_RULE). The shared core scopes Rules 1/2/8/9 to REMOTE
 // and tells a NORMAL session it owes no `hwip_ask`. That is right where a
 // hook can announce the phone message that starts REMOTE; here nothing can,
 // and the only remaining entry is a `hwip_ask` answer reporting REMOTE.
@@ -294,10 +295,18 @@ export const PI_RULE = buildRule({
   core: PROMPT_HOOK_CORE,
 });
 
-/** OpenCode — managed block in ~/.config/opencode/AGENTS.md. Stop hook via plugin, no prompt hook (v1). */
+/**
+ * OpenCode — managed block in ~/.config/opencode/AGENTS.md. Stop hook via plugin, no prompt hook.
+ *
+ * No REMOTE_ENTRY_NO_HOOK, unlike the other hook-less agents: its after-work
+ * ask landed on the phone while the user sat at the terminal (2026-10-29,
+ * OpenCode 2.1.3), and the 2.x plugin API (event stream only) has no per-turn
+ * hook to tell the two apart. So a NORMAL session owes no ask, and REMOTE
+ * starts only from an ask the agent chose to send. Full core, because no hook
+ * delivers the REMOTE sections on entry.
+ */
 export const OPENCODE_RULE = buildRule({
   notify: HOOK_DRIVEN_NOTIFY,
-  remoteEntry: REMOTE_ENTRY_NO_HOOK,
   core: HWIP_CORE_HOOK_DRIVEN,
 });