Clarify skill scope and add inheritance notes

- Core Rules: clarify that `_links` navigation applies to graph URLs;
  external URLs (e.g., GitHub diffs in fixes[]) can be used directly
- Add "Core Rules apply to all skills" note in SKILL.md
- Add inheritance reminder to all secondary skills so LLMs retain
  context when pivoting between skills

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

release-notes/skills/SKILL.md

@@ -13,7 +13,7 @@ https://raw.githubusercontent.com/dotnet/core/refs/heads/release-index/release-n
 
 ## Core Rules
 
-1. **Follow `_links["..."].href` exactly** — never construct URLs
+1. **Follow `_links["..."].href` exactly** — never construct graph URLs. External URLs (e.g., GitHub diffs in `fixes[]`) can be used directly.
 2. **Use `_embedded` data first** — it answers most queries without extra fetches
 3. **If data is missing, don't fabricate** — report the gap
 
@@ -27,7 +27,7 @@ https://raw.githubusercontent.com/dotnet/core/refs/heads/release-index/release-n
 
 ## Skills for Specific Tasks
 
-Fetch these when your query matches:
+Fetch these when your query matches. **Core Rules above apply to all skills.**
 
 | Skill | Fetch When | URL |
 |-------|------------|-----|

release-notes/skills/breaking-changes.md

@@ -1,5 +1,7 @@
 # Breaking Changes Queries
 
+*Core Rules from SKILL.md apply: follow `_links` for navigation, use `_embedded` first.*
+
 ## Navigation Flow (2 fetches)
 
 ```

release-notes/skills/cve.md

@@ -1,5 +1,7 @@
 # CVE Queries
 
+*Core Rules from SKILL.md apply: follow `_links` for navigation, use `_embedded` first.*
+
 ## Quick Rule
 
 `_embedded.latest_security_month[]` in llms.json has **counts and IDs only** — fetch the month index for CVSS scores and severity.

release-notes/skills/navigation.md

@@ -1,5 +1,7 @@
 # Navigation Flows
 
+*Core Rules from SKILL.md apply: follow `_links` for navigation, use `_embedded` first.*
+
 Visual map of navigation patterns through the .NET release graph. Use this when planning multi-hop queries.
 
 ## Entry Points

release-notes/skills/os-support.md

@@ -1,5 +1,7 @@
 # OS Packages and Support Queries
 
+*Core Rules from SKILL.md apply: follow `_links` for navigation, use `_embedded` first.*
+
 ## Navigation Flow (3 fetches)
 
 ```

release-notes/skills/version-eol.md

@@ -1,5 +1,7 @@
 # Version and EOL Queries
 
+*Core Rules from SKILL.md apply: follow `_links` for navigation, use `_embedded` first.*
+
 ## Key Distinction
 
 - **Supported versions** → data embedded in `llms.json`