Fix issues found testing the tools live

- The model has no clock and invented a 2025 start date for the
  calendar; the system prompt now carries the current date and time.
- It also derived a wrong weekday from a date; agenda.py prints the
  weekday itself.
- An announcement ran straight into the answer; a 0.6 s pause follows it.
- The calendar days hint asks for 30 or more when looking for the next
  event.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2 files changed, 7 insertions, 6 deletions

diff --git a/examples/tools/agenda.py b/examples/tools/agenda.py
index 44bc34b..6c5bfca 100755
--- a/examples/tools/agenda.py
+++ b/examples/tools/agenda.py
@@ -77,6 +77,7 @@ def when(line):
 def agenda(d, start, days):
     # ponytail: naive local times, so a recurring event in a zone other than
     # ours drifts by an hour across DST; multi-day events show on day one only.
+    # The weekday is printed because the model gets it wrong from a date.
     lo = dt.datetime.fromisoformat(start)
     hi = lo + dt.timedelta(days=days)
     evs = []
@@ -106,7 +107,7 @@ def agenda(d, start, days):
             occ = [first] if lo <= first < hi else []
         summary = e.get("SUMMARY", "SUMMARY:(no title)").split(":", 1)[1]
         summary = summary.replace("\\,", ",").replace("\\;", ";").replace("\\n", " ")
-        out += [(t, f"{t:%Y-%m-%d} {'all day' if allday else f'{t:%H:%M}'} {summary}")
+        out += [(t, f"{t:%A %Y-%m-%d} {'all day' if allday else f'{t:%H:%M}'} {summary}")
                 for t in occ]
     return [line for _, line in sorted(out)]
 
@@ -140,11 +141,11 @@ def test():
             with open(os.path.join(d, "cal", name), "w", newline="") as f:
                 f.write(text)
         assert agenda(d, "2026-09-01", 30) == [
-            "2026-09-01 18:00 Gym", "2026-09-16 19:00 Gym moved",
-            "2026-09-22 18:00 Gym", "2026-09-29 18:00 Gym"], agenda(d, "2026-09-01", 30)
-        assert agenda(d, "2026-03-10", 5) == ["2026-03-12 all day Birthday"]
+            "Tuesday 2026-09-01 18:00 Gym", "Wednesday 2026-09-16 19:00 Gym moved",
+            "Tuesday 2026-09-22 18:00 Gym", "Tuesday 2026-09-29 18:00 Gym"], agenda(d, "2026-09-01", 30)
+        assert agenda(d, "2026-03-10", 5) == ["Thursday 2026-03-12 all day Birthday"]
         assert agenda(d, "2026-10-01", 1) == [
-            "2026-10-01 10:00 Dentist, checkup", "2026-10-01 18:00 Call"]    # 16Z = 18 local
+            "Thursday 2026-10-01 10:00 Dentist, checkup", "Thursday 2026-10-01 18:00 Call"]    # 16Z = 18 local
         assert agenda(d, "2026-10-02", 1) == []
     print("ok")
 
diff --git a/examples/tools/calendar.toml b/examples/tools/calendar.toml
index 75e4898..50b578c 100644
--- a/examples/tools/calendar.toml
+++ b/examples/tools/calendar.toml
@@ -8,4 +8,4 @@ description = "First day, YYYY-MM-DD. Empty for today."
 
 [params.days]
 type = "integer"
-description = "How many days, 1 for a single day. Empty for 1."
+description = "How many days, 1 for a single day, 30 or more for the next event. Empty for 1."