Add community skills, agents, system prompts from 22+ sources

Community Skills (32):
- jat: jat-start, jat-verify, jat-complete
- pi-mono: codex-cli, codex-5.3-prompting, interactive-shell
- picoclaw: github, weather, tmux, summarize, skill-creator
- dyad: 18 skills (swarm-to-plan, multi-pr-review, fix-issue, lint, etc.)
- dexter: dcf valuation skill

Agents (23):
- pi-mono subagents: scout, planner, reviewer, worker
- toad: 19 agent configs (Claude, Codex, Gemini, Copilot, OpenCode, etc.)

System Prompts (91):
- Anthropic: 15 Claude prompts (opus-4.6, code, cowork, etc.)
- OpenAI: 49 GPT prompts (gpt-5 series, o3, o4-mini, tools)
- Google: 13 Gemini prompts (2.5-pro, 3-pro, workspace, cli)
- xAI: 5 Grok prompts
- Other: 9 misc prompts (Notion, Raycast, Warp, Kagi, etc.)

Hooks (9):
- JAT hooks for session management, signal tracking, activity logging

Prompts (6):
- pi-mono templates for PR review, issue analysis, changelog audit

Sources analyzed: jat, ralph-desktop, toad, pi-mono, cmux, pi-interactive-shell,
craft-agents-oss, dexter, picoclaw, dyad, system_prompts_leaks, Prometheus,
zed, clawdbot, OS-Copilot, and more

skills/community/dexter/dcf/sector-wacc.md

@@ -0,0 +1,43 @@
+# Sector WACC Adjustments
+
+Use these typical WACC ranges as starting points, then adjust based on company-specific factors.
+
+## Determining Company Sector
+
+Use `financial_search` with query `"[TICKER] company facts"` to retrieve the company's `sector`. Match the returned sector to the table below.
+
+## WACC by Sector
+
+| Sector | Typical WACC Range | Notes |
+|--------|-------------------|-------|
+| Communication Services | 8-10% | Mix of stable telecom and growth media |
+| Consumer Discretionary | 8-10% | Cyclical exposure |
+| Consumer Staples | 7-8% | Defensive, stable demand |
+| Energy | 9-11% | Commodity price exposure |
+| Financials | 8-10% | Leverage already in business model |
+| Health Care | 8-10% | Regulatory and pipeline risk |
+| Industrials | 8-9% | Moderate cyclicality |
+| Information Technology | 8-12% | Assess growth stage; higher for high-growth |
+| Materials | 8-10% | Cyclical, commodity exposure |
+| Real Estate | 7-9% | Interest rate sensitivity |
+| Utilities | 6-7% | Regulated, stable cash flows |
+
+## Adjustment Factors
+
+Add to base WACC:
+- **High debt (D/E > 1.5)**: +1-2%
+- **Small cap (< $2B market cap)**: +1-2%
+- **Emerging markets exposure**: +1-3%
+- **Concentrated customer base**: +0.5-1%
+- **Regulatory uncertainty**: +0.5-1.5%
+
+Subtract from base WACC:
+- **Market leader with moat**: -0.5-1%
+- **Recurring revenue model**: -0.5-1%
+- **Investment grade credit rating**: -0.5%
+
+## Reasonableness Checks
+
+- WACC should typically be 2-4% below ROIC for value-creating companies
+- If calculated WACC > ROIC, the company may be destroying value
+- Compare to sector peers if available