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/openhue/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: openhue
-description: Control Philips Hue lights/scenes via the OpenHue CLI.
+description: Control Philips Hue lights and scenes via the OpenHue CLI.
 homepage: https://www.openhue.io/cli
 metadata:
   {
@@ -24,28 +24,89 @@ metadata:
 
 # OpenHue CLI
 
-Use `openhue` to control Hue lights and scenes via a Hue Bridge.
+Use `openhue` to control Philips Hue lights and scenes via a Hue Bridge.
 
-Setup
+## When to Use
 
-- Discover bridges: `openhue discover`
-- Guided setup: `openhue setup`
+✅ **USE this skill when:**
 
-Read
+- "Turn on/off the lights"
+- "Dim the living room lights"
+- "Set a scene" or "movie mode"
+- Controlling specific Hue rooms or zones
+- Adjusting brightness, color, or color temperature
 
-- `openhue get light --json`
-- `openhue get room --json`
-- `openhue get scene --json`
+## When NOT to Use
 
-Write
+❌ **DON'T use this skill when:**
 
-- Turn on: `openhue set light <id-or-name> --on`
-- Turn off: `openhue set light <id-or-name> --off`
-- Brightness: `openhue set light <id> --on --brightness 50`
-- Color: `openhue set light <id> --on --rgb #3399FF`
-- Scene: `openhue set scene <scene-id>`
+- Non-Hue smart devices (other brands) → not supported
+- HomeKit scenes or Shortcuts → use Apple's ecosystem
+- TV or entertainment system control
+- Thermostat or HVAC
+- Smart plugs (unless Hue smart plugs)
 
-Notes
+## Common Commands
 
-- You may need to press the Hue Bridge button during setup.
-- Use `--room "Room Name"` when light names are ambiguous.
+### List Resources
+
+```bash
+openhue get light       # List all lights
+openhue get room        # List all rooms
+openhue get scene       # List all scenes
+```
+
+### Control Lights
+
+```bash
+# Turn on/off
+openhue set light "Bedroom Lamp" --on
+openhue set light "Bedroom Lamp" --off
+
+# Brightness (0-100)
+openhue set light "Bedroom Lamp" --on --brightness 50
+
+# Color temperature (warm to cool: 153-500 mirek)
+openhue set light "Bedroom Lamp" --on --temperature 300
+
+# Color (by name or hex)
+openhue set light "Bedroom Lamp" --on --color red
+openhue set light "Bedroom Lamp" --on --rgb "#FF5500"
+```
+
+### Control Rooms
+
+```bash
+# Turn off entire room
+openhue set room "Bedroom" --off
+
+# Set room brightness
+openhue set room "Bedroom" --on --brightness 30
+```
+
+### Scenes
+
+```bash
+# Activate scene
+openhue set scene "Relax" --room "Bedroom"
+openhue set scene "Concentrate" --room "Office"
+```
+
+## Quick Presets
+
+```bash
+# Bedtime (dim warm)
+openhue set room "Bedroom" --on --brightness 20 --temperature 450
+
+# Work mode (bright cool)
+openhue set room "Office" --on --brightness 100 --temperature 250
+
+# Movie mode (dim)
+openhue set room "Living Room" --on --brightness 10
+```
+
+## Notes
+
+- Bridge must be on local network
+- First run requires button press on Hue bridge to pair
+- Colors only work on color-capable bulbs (not white-only)