Fix mail counts and finance ranges found testing live

- mail printed threads and the model called them emails; it now
  reports messages and threads.
- finance spending takes a since date (default the first of the month)
  instead of a day count, and an optional asset account. The
  per-account listing needs an end date or the API rejects it; an
  unknown account name gets the user's accounts back.
- Tool errors are capped at 2000 characters like normal output.

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

1 files changed, 8 insertions, 4 deletions

diff --git a/examples/tools/finance.toml b/examples/tools/finance.toml
index b05031c..1cfdc4a 100644
--- a/examples/tools/finance.toml
+++ b/examples/tools/finance.toml
@@ -1,5 +1,5 @@
 description = "The user's money, from Firefly III: account balances, this month's budgets, or recent spending. Read-only."
-command = ["finance.sh", "{what}", "{days}"]
+command = ["finance.sh", "{what}", "{since}", "{account}"]
 timeout = 20
 announce.it = ["Controllo i conti."]
 announce.en = ["Checking your accounts."]
@@ -8,6 +8,10 @@ announce.en = ["Checking your accounts."]
 type = "string"
 description = "balances, budgets or spending"
 
-[params.days]
-type = "integer"
-description = "For spending: how many days back. Empty for 30."
+[params.since]
+type = "string"
+description = "For spending: first day, YYYY-MM-DD. Empty for the first of this month."
+
+[params.account]
+type = "string"
+description = "For spending: only this account, by name as balances lists it. Empty for all accounts."