Add security skills from Trail of Bits to README

README.md

@@ -108,6 +108,27 @@ See the [official repo](https://github.com/anthropics/skills) and [creation guid
 
 - **[vercel-labs/react-best-practices](https://github.com/vercel-labs/agent-skills/tree/main/skills/react-best-practices)** - React best practices and patterns
 - **[vercel-labs/vercel-deploy-claimable](https://github.com/vercel-labs/agent-skills/tree/main/skills/claude.ai/vercel-deploy-claimable)** - Deploy projects to Vercel
+- **[vercel-labs/web-design-guidelines](https://github.com/vercel-labs/agent-skills/tree/main/skills/web-design-guidelines)** - Web design guidelines and standards
+
+## Security Skills by Trail of Bits Team
+
+- **[trailofbits/ask-questions-if-underspecified](https://github.com/trailofbits/skills/tree/main/plugins/ask-questions-if-underspecified)** - Prompt for clarification on ambiguous requirements
+- **[trailofbits/audit-context-building](https://github.com/trailofbits/skills/tree/main/plugins/audit-context-building)** - Deep architectural context via ultra-granular code analysis
+- **[trailofbits/building-secure-contracts](https://github.com/trailofbits/skills/tree/main/plugins/building-secure-contracts)** - Smart contract security toolkit with vulnerability scanners for 6 blockchains
+- **[trailofbits/burpsuite-project-parser](https://github.com/trailofbits/skills/tree/main/plugins/burpsuite-project-parser)** - Search and extract data from Burp Suite project files
+- **[trailofbits/constant-time-analysis](https://github.com/trailofbits/skills/tree/main/plugins/constant-time-analysis)** - Detect compiler-induced timing side-channels in crypto code
+- **[trailofbits/culture-index](https://github.com/trailofbits/skills/tree/main/plugins/culture-index)** - Index and search culture documentation
+- **[trailofbits/differential-review](https://github.com/trailofbits/skills/tree/main/plugins/differential-review)** - Security-focused diff review with git history analysis
+- **[trailofbits/dwarf-expert](https://github.com/trailofbits/skills/tree/main/plugins/dwarf-expert)** - DWARF debugging format expertise
+- **[trailofbits/entry-point-analyzer](https://github.com/trailofbits/skills/tree/main/plugins/entry-point-analyzer)** - Identify state-changing entry points in smart contracts
+- **[trailofbits/fix-review](https://github.com/trailofbits/skills/tree/main/plugins/fix-review)** - Verify fix commits address audit findings without new bugs
+- **[trailofbits/property-based-testing](https://github.com/trailofbits/skills/tree/main/plugins/property-based-testing)** - Property-based testing for multiple languages and smart contracts
+- **[trailofbits/semgrep-rule-creator](https://github.com/trailofbits/skills/tree/main/plugins/semgrep-rule-creator)** - Create and refine Semgrep rules for vulnerability detection
+- **[trailofbits/sharp-edges](https://github.com/trailofbits/skills/tree/main/plugins/sharp-edges)** - Identify error-prone APIs and dangerous configurations
+- **[trailofbits/spec-to-code-compliance](https://github.com/trailofbits/skills/tree/main/plugins/spec-to-code-compliance)** - Specification-to-code compliance checker for blockchain audits
+- **[trailofbits/static-analysis](https://github.com/trailofbits/skills/tree/main/plugins/static-analysis)** - Static analysis toolkit with CodeQL, Semgrep, and SARIF
+- **[trailofbits/testing-handbook-skills](https://github.com/trailofbits/skills/tree/main/plugins/testing-handbook-skills)** - Testing Handbook skills: fuzzers, static analysis, sanitizers
+- **[trailofbits/variant-analysis](https://github.com/trailofbits/skills/tree/main/plugins/variant-analysis)** - Find similar vulnerabilities via pattern-based analysis
 
 ## Community Skills