Verify or source forward-looking Unity version claims in skills and rules #32

Why it matters

Skills state specific Unity version facts as settled ("deprecated in 6.5", "6.7 LTS", "Distributed Authority (6.4)"). If any are speculative or wrong, the AI will confidently repeat them to users, and the project's credibility rests on being current and accurate.

Evidence (claims to verify against official Unity sources)

• skills/project-setup/SKILL.md:83, skills/render-pipeline-detection/SKILL.md:14, README.md pipelines table, snippets/shaders/surface-basic.shader:3: Built-in pipeline "deprecated in Unity 6.5 ... through Unity 6.7 LTS".
• skills/render-pipeline-detection/SKILL.md:126: "SCGI (6.7)".
• skills/render-pipeline-detection/SKILL.md:129: Render Graph "as of Unity 6.3" (URP has defaulted to Render Graph since 6.0).
• skills/networking/SKILL.md:88: "Distributed Authority (Unity 6.4)".
• skills/ecs-dots/SKILL.md:12: "Entities package (1.4/1.7) integrated"; line 169: "Hierarchy V2 (Unity 6.5 opt-in)".
• skills/project-setup/SKILL.md:120, rules/security-and-builds.mdc:20: "packages must be signed" in 6.3.
• rules/shader-conventions.mdc:14, skills/render-pipeline-detection/SKILL.md:101: CGPROGRAM called "deprecated" (it is discouraged for SRPs and breaks SRP Batcher compatibility, but not formally deprecated).
• skills/render-pipeline-detection lighting table: 8 per-object lights for Built-in forward (default pixel light count is 4).

Suggested approach

• Verify each claim; cite a source link inline (or in a references footer) for every version-specific statement.
• Reword anything unconfirmed as "planned/announced" with a date, or remove it.
• Add a last-verified field to skill frontmatter so stale claims are visible.

Done when

Every version-specific claim in skills and rules is either sourced or removed.