feat: add trigger phrases to skill descriptions for better model matching (v0.6.4.1) (#169)

* feat: add trigger phrases to skill descriptions for better model matching

Anthropic's skill best practices: "the description field is not a summary —
it's when to trigger." Add explicit "Use when asked to..." phrases to 12 skill
descriptions so Claude's auto-discovery works with natural language requests
like "deploy this" or "check my diff", not just explicit /slash-commands.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add on-demand hooks and telemetry to TODOS.md

Captures two ideas from Anthropic's skill best practices post:
- /careful, /freeze, /guard on-demand hook skills (P3)
- Skill usage telemetry via preamble JSONL append (P3)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: bump version and changelog (v0.6.4.1)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* docs: exclude internal details from CHANGELOG style guide

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

plan-design-review/SKILL.md

@@ -5,7 +5,8 @@ description: |
   Designer's eye plan review — interactive, like CEO and Eng review.
   Rates each design dimension 0-10, explains what would make it a 10,
   then fixes the plan to get there. Works in plan mode. For live site
-  visual audits, use /design-review.
+  visual audits, use /design-review. Use when asked to "review the design plan"
+  or "design critique".
 allowed-tools:
   - Read
   - Edit

plan-design-review/SKILL.md.tmpl

@@ -5,7 +5,8 @@ description: |
   Designer's eye plan review — interactive, like CEO and Eng review.
   Rates each design dimension 0-10, explains what would make it a 10,
   then fixes the plan to get there. Works in plan mode. For live site
-  visual audits, use /design-review.
+  visual audits, use /design-review. Use when asked to "review the design plan"
+  or "design critique".
 allowed-tools:
   - Read
   - Edit