Add launch-strategy skill for product launches and feature announcements

New skill covering the complete launch playbook:

- ORB Framework: Owned, Rented, and Borrowed channel strategy
- Five-phase launch approach: Internal, Alpha, Beta, Early Access, Launch
- Product Hunt launch strategy with case studies (SavvyCal, Reform)
- Post-launch product marketing tactics
- Ongoing launch strategy and announcement prioritization
- Complete launch checklist (pre-launch, launch day, post-launch)

Includes real-world examples from Superhuman, Notion, and TRMNL.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -31,6 +31,7 @@ Skills are markdown files that give AI agents specialized knowledge and workflow
 | [free-tool-strategy](skills/free-tool-strategy.md) | Plan engineering-as-marketing tools | "free tool," "calculator," "lead gen tool" |
 | [marketing-ideas](skills/marketing-ideas.md) | 140 SaaS marketing ideas and strategies | "marketing ideas," "growth ideas," "how to market" |
 | [marketing-psychology](skills/marketing-psychology.md) | 70+ mental models for marketing | "psychology," "mental models," "cognitive bias," "persuasion" |
+| [launch-strategy](skills/launch-strategy.md) | Product launches and feature announcements | "launch," "Product Hunt," "feature release," "go-to-market" |
 
 ## Installation
 
@@ -128,6 +129,7 @@ You can also invoke skills directly:
 ### Strategy & Ideas
 - `marketing-ideas` - 140 SaaS marketing ideas
 - `marketing-psychology` - Mental models and psychology
+- `launch-strategy` - Product launches and announcements
 
 ## Contributing