fix(skills): add YAML frontmatter to 41 SKILL.md files

[darwin7381]

Summary

• 41 SKILL.md files across vertical and agent plugins ship with the description as a plain markdown line below the heading instead of proper YAML frontmatter between `---` delimiters.
• Without frontmatter, the skill name and description are not extracted by the plugin loader, so the skill cannot be auto-triggered by Claude from natural-language queries.
• Adds proper frontmatter (`name` derived from directory, `description` copied verbatim from the existing line) so skills can be auto-discovered and auto-triggered.

Before

```markdown

Thesis Tracker

description: Maintain and update investment theses for portfolio positions and watchlist names. Track key data points, catalysts, and thesis milestones over time. Use when updating a thesis with new information, reviewing position rationale, or checking if a thesis is still intact. Triggers on "update thesis for [company]", ...

Workflow

```

`claude plugin validate` warns:
```
⚠ frontmatter: No frontmatter block found. Add YAML frontmatter between --- delimiters at the top of the file to set description and other metadata.
```

After

```markdown

name: thesis-tracker
description: Maintain and update investment theses for portfolio positions and watchlist names. ...

Thesis Tracker

Workflow

```

`claude plugin validate` → `✔ Validation passed` (no warnings).

Impact

• Skills become auto-triggerable on natural-language queries that match their description's trigger phrases
• Analysts no longer need to memorize exact slash-command identifiers
• Brings these 41 skills in line with the SKILL.md files that already had correct frontmatter (e.g., `financial-analysis/skills/dcf-model/SKILL.md`)

Affected plugins

• vertical-plugins: equity-research (7), private-equity (10), wealth-management (6), investment-banking (6)
• agent-plugins: earnings-reviewer (3), market-researcher (2), meeting-prep-agent (3), pitch-agent (1), valuation-reviewer (3)

Transformation rule

• Skill `name` = parent directory name (already kebab-case)
• `description` = the existing `description:` line verbatim
• Title (`# Foo`) and body content preserved unchanged
• Blank line preserved between frontmatter and title for readability

Test plan

• Ran `claude plugin validate` on every affected plugin — all pass without warnings
• Spot-checked rendered output: title remains the H1, description metadata available to loader
• No content changes — only frontmatter added

🤖 Generated with Claude Code