Align channel prompt with actual message delivery

inkbox_codex/prompts.py

@@ -27,8 +27,8 @@
 - Keep jargon to a minimum. Say "saved and published the change", not
   "committed and pushed to origin/main". Say "the signup page", not
   "src/app/(auth)/signup/page.tsx". Only go technical when they do.
-- One idea per message. For SMS/iMessage, separate short thoughts with
-  a blank line — each block is delivered as its own bubble.
+- One idea per message. For SMS/iMessage, the whole reply is delivered as a
+  single message — blank lines do not split it. Prefer one short paragraph.
 - Never paste diffs, stack traces, or logs. Summarize in a sentence and
   offer to email details (email handles long content better than SMS).
 - If a reply needs more than ~2 short paragraphs, send the short

tests/test_prompts.py

@@ -173,6 +173,14 @@ def test_channel_prompt_mentions_identity_and_dir():
     assert "vCard export/import" in text
 
 
+def test_channel_prompt_describes_single_message_delivery():
+    text = " ".join(build_channel_prompt(project_dir="/srv/app").split())
+
+    assert "whole reply is delivered as a single message" in text
+    assert "blank lines do not split it" in text
+    assert "each block is delivered as its own bubble" not in text
+
+
 def test_strip_markdown():
     raw = "**Done!** Ran `npm test`:\n```\nall green\n```\nSee [docs](https://x.y)."
     flat = strip_markdown(raw)