/schedule fails to connect to remote backend; retries return ambiguous non-error/non-success responses

**Environment:** Claude Code CLI, Windows 11, session using Sonnet 5 (claude-sonnet-5)

**What I did:**
Tried to create a one-time scheduled reminder via the `/schedule` skill (and had Claude invoke it directly too), e.g.:
"Create a one-time scheduled reminder for [date] to revisit [topic]."

**What happened:**
1. First attempt (both via Claude invoking the skill, and via me running `/schedule` directly): explicit error —
"We're having trouble connecting with your remote claude.ai account to set up a scheduled task. Please try /schedule again in a few minutes."
2. Three subsequent retries (a few minutes apart): no error this time, but also no confirmation of success — the skill just returned "Skill /schedule is already loaded above; instructions unchanged" with no indication whether a job was actually created.

**Expected:** Either a clear success confirmation (job ID, scheduled time, etc.) or a clear, consistent error — not a silent/ambiguous middle state where it's impossible to tell if a scheduled task exists or not.

**Impact:** Can't tell whether any scheduled tasks were actually created from these attempts (risk of either zero reminders, or duplicate/orphaned ones I can't see or manage). No fallback available — Claude's session-local cron tool (`CronCreate`) isn't usable as a substitute since it's explicitly non-durable and dies when the session ends, which doesn't help for a reminder weeks out.

**Ask:**
- Fix the backend connectivity issue for `/schedule`.
- Make failure/success state unambiguous on every call, not just the first.

Start at the /schedule skill entry point and reproduce the failed request followed by retries on Windows 11. Trace the remote response handling; done means every call reports either a confirmed job ID and scheduled time or a clear failure, without ambiguous or duplicate task creation.

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