feat(skills): Add 'Use when / Don't use when' routing blocks (#14521)

* feat(skills): add 'Use when / Don't use when' blocks to skill descriptions

Based on OpenAI's Shell + Skills + Compaction best practices article.

Key changes:
- Added clear routing logic to skill descriptions
- Added negative examples to prevent misfires
- Added templates/examples to github skill
- Included Blake's specific setup notes for openhue

Skills updated:
- apple-reminders: Clarify vs Clawdbot cron
- github: Clarify vs local git operations
- imsg: Clarify vs other messaging channels
- openhue: Add device inventory, room layout
- tmux: Clarify vs exec tool
- weather: Add location defaults, format codes

Reference: https://developers.openai.com/blog/skills-shell-tips

* fix(skills): restore metadata and generic CLI examples

---------

Co-authored-by: Peter Steinberger <steipete@gmail.com>

skills/apple-reminders/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: apple-reminders
-description: Manage Apple Reminders via the `remindctl` CLI on macOS (list, add, edit, complete, delete). Supports lists, date filters, and JSON/plain output.
+description: Manage Apple Reminders via remindctl CLI (list, add, edit, complete, delete). Supports lists, date filters, and JSON/plain output.
 homepage: https://github.com/steipete/remindctl
 metadata:
   {
@@ -25,63 +25,82 @@ metadata:
 
 # Apple Reminders CLI (remindctl)
 
-Use `remindctl` to manage Apple Reminders directly from the terminal. It supports list filtering, date-based views, and scripting output.
+Use `remindctl` to manage Apple Reminders directly from the terminal.
 
-Setup
+## When to Use
 
-- Install (Homebrew): `brew install steipete/tap/remindctl`
-- From source: `pnpm install && pnpm build` (binary at `./bin/remindctl`)
-- macOS-only; grant Reminders permission when prompted.
+✅ **USE this skill when:**
 
-Permissions
+- User explicitly mentions "reminder" or "Reminders app"
+- Creating personal to-dos with due dates that sync to iOS
+- Managing Apple Reminders lists
+- User wants tasks to appear in their iPhone/iPad Reminders app
 
+## When NOT to Use
+
+❌ **DON'T use this skill when:**
+
+- Scheduling Clawdbot tasks or alerts → use `cron` tool with systemEvent instead
+- Calendar events or appointments → use Apple Calendar
+- Project/work task management → use Notion, GitHub Issues, or task queue
+- One-time notifications → use `cron` tool for timed alerts
+- User says "remind me" but means a Clawdbot alert → clarify first
+
+## Setup
+
+- Install: `brew install steipete/tap/remindctl`
+- macOS-only; grant Reminders permission when prompted
 - Check status: `remindctl status`
 - Request access: `remindctl authorize`
 
-View Reminders
+## Common Commands
 
-- Default (today): `remindctl`
-- Today: `remindctl today`
-- Tomorrow: `remindctl tomorrow`
-- Week: `remindctl week`
-- Overdue: `remindctl overdue`
-- Upcoming: `remindctl upcoming`
-- Completed: `remindctl completed`
-- All: `remindctl all`
-- Specific date: `remindctl 2026-01-04`
+### View Reminders
 
-Manage Lists
+```bash
+remindctl                    # Today's reminders
+remindctl today              # Today
+remindctl tomorrow           # Tomorrow
+remindctl week               # This week
+remindctl overdue            # Past due
+remindctl all                # Everything
+remindctl 2026-01-04         # Specific date
+```
 
-- List all lists: `remindctl list`
-- Show list: `remindctl list Work`
-- Create list: `remindctl list Projects --create`
-- Rename list: `remindctl list Work --rename Office`
-- Delete list: `remindctl list Work --delete`
+### Manage Lists
 
-Create Reminders
+```bash
+remindctl list               # List all lists
+remindctl list Work          # Show specific list
+remindctl list Projects --create    # Create list
+remindctl list Work --delete        # Delete list
+```
 
-- Quick add: `remindctl add "Buy milk"`
-- With list + due: `remindctl add --title "Call mom" --list Personal --due tomorrow`
+### Create Reminders
 
-Edit Reminders
+```bash
+remindctl add "Buy milk"
+remindctl add --title "Call mom" --list Personal --due tomorrow
+remindctl add --title "Meeting prep" --due "2026-02-15 09:00"
+```
 
-- Edit title/due: `remindctl edit 1 --title "New title" --due 2026-01-04`
+### Complete/Delete
 
-Complete Reminders
+```bash
+remindctl complete 1 2 3     # Complete by ID
+remindctl delete 4A83 --force  # Delete by ID
+```
 
-- Complete by id: `remindctl complete 1 2 3`
+### Output Formats
 
-Delete Reminders
+```bash
+remindctl today --json       # JSON for scripting
+remindctl today --plain      # TSV format
+remindctl today --quiet      # Counts only
+```
 
-- Delete by id: `remindctl delete 4A83 --force`
+## Date Formats
 
-Output Formats
-
-- JSON (scripting): `remindctl today --json`
-- Plain TSV: `remindctl today --plain`
-- Counts only: `remindctl today --quiet`
-
-Date Formats
 Accepted by `--due` and date filters:
 
 - `today`, `tomorrow`, `yesterday`
@@ -89,8 +108,11 @@ Accepted by `--due` and date filters:
 - `YYYY-MM-DD HH:mm`
 - ISO 8601 (`2026-01-04T12:34:56Z`)
 
-Notes
+## Example: Clarifying User Intent
 
-- macOS-only.
-- If access is denied, enable Terminal/remindctl in System Settings → Privacy & Security → Reminders.
-- If running over SSH, grant access on the Mac that runs the command.
+User: "Remind me to check on the deploy in 2 hours"
+
+**Ask:** "Do you want this in Apple Reminders (syncs to your phone) or as a Clawdbot alert (I'll message you here)?"
+
+- Apple Reminders → use this skill
+- Clawdbot alert → use `cron` tool with systemEvent