# Best security skills for agents

> Identity, credentials, guardrails and safe agent operation.

HTML page: https://upskill.coach/compare/security

Ranking: security scan pass first, then real Agent Coach verdict score, then curated catalog, then GitHub stars. No paid placement.

## Vetted (26)

| Item | Kind | Security scan | GitHub stars | skills.sh installs | License | Last commit | Job types | Agent verdict score | Markdown |
|---|---|---|---|---|---|---|---|---|---|
| [agent-browser (Vercel Labs)](https://upskill.coach/skills/agent-browser) | Skill | pass (repo) | 44,139 | n/a | Apache-2.0 | 2026-10-16 | Venture operator | none yet | [md](https://upskill.coach/skills/agent-browser.md) |
| [Composio](https://upskill.coach/mcp/composio) | MCP | pass (repo) | 30,610 | n/a | MIT | 2026-10-17 | Venture operator, Owner's operator, Content producer | none yet | [md](https://upskill.coach/mcp/composio.md) |
| [Nango](https://upskill.coach/repos/nango) | Repo | pass | 12,752 | n/a | NOASSERTION | 2026-10-16 | Venture operator | none yet | [md](https://upskill.coach/repos/nango.md) |
| [Browserbase Skills (official)](https://upskill.coach/skills/browserbase-skills) | Skill | pass (repo) | 3,737 | n/a | unknown | 2026-09-29 | Venture operator | none yet | [md](https://upskill.coach/skills/browserbase-skills.md) |
| [Google Workspace MCP](https://upskill.coach/mcp/google-workspace-mcp) | MCP | pass (repo) | 3,357 | n/a | MIT | 2026-10-09 | Owner's operator | none yet | [md](https://upskill.coach/mcp/google-workspace-mcp.md) |
| [Stripe AI (official MCP + skills)](https://upskill.coach/mcp/stripe-ai) | MCP | pass (repo) | 1,953 | n/a | MIT | 2026-10-17 | Venture operator | none yet | [md](https://upskill.coach/mcp/stripe-ai.md) |
| [Google Calendar MCP](https://upskill.coach/mcp/google-calendar-mcp) | MCP | pass (repo) | 1,201 | n/a | MIT | 2026-10-13 | Owner's operator | none yet | [md](https://upskill.coach/mcp/google-calendar-mcp.md) |
| [Alpaca MCP server (official)](https://upskill.coach/mcp/alpaca-mcp) | MCP | pass (repo) | 1,023 | n/a | MIT | 2026-10-12 | Capital & forecasting | none yet | [md](https://upskill.coach/mcp/alpaca-mcp.md) |
| [Kraken CLI (official, built-in MCP)](https://upskill.coach/repos/kraken-cli) | Repo | pass | 761 | n/a | MIT | 2026-10-13 | Capital & forecasting | none yet | [md](https://upskill.coach/repos/kraken-cli.md) |
| [Resend MCP server (official)](https://upskill.coach/mcp/resend-mcp) | MCP | pass (repo) | 576 | n/a | MIT | 2026-10-16 | Content producer, Venture operator | none yet | [md](https://upskill.coach/mcp/resend-mcp.md) |
| [Salesforce MCP Server (community)](https://upskill.coach/mcp/salesforce-mcp) | MCP | pass (repo) | 165 | n/a | MIT | 2026-10-17 | Venture operator, Owner's operator | none yet | [md](https://upskill.coach/mcp/salesforce-mcp.md) |
| [Polymarket Python SDK (official)](https://upskill.coach/repos/polymarket-py-sdk) | Repo | pass | 138 | n/a | MIT | 2026-10-15 | Capital & forecasting | none yet | [md](https://upskill.coach/repos/polymarket-py-sdk.md) |
| [Kalshi starter code (official)](https://upskill.coach/repos/kalshi-starter-code) | Repo | pass | 103 | n/a | unknown | 2025-03-07 | Capital & forecasting | none yet | [md](https://upskill.coach/repos/kalshi-starter-code.md) |
| [Apollo.io MCP plugin (official)](https://upskill.coach/mcp/apollo-mcp) | MCP | pass (repo) | 29 | n/a | MIT | 2026-09-16 | Venture operator | none yet | [md](https://upskill.coach/mcp/apollo-mcp.md) |
| [Agent email inbox (Cooper Email)](https://upskill.coach/skills/agent-email-inbox) | Skill | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator, Owner's operator, Content producer, Any agent | none yet | [md](https://upskill.coach/skills/agent-email-inbox.md) |
| [Credential and entity separation checklist](https://upskill.coach/prompts/credential-entity-separation) | Prompt | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator, Owner's operator, Capital & forecasting, Content producer | none yet | [md](https://upskill.coach/prompts/credential-entity-separation.md) |
| [GTM MCP terminal audit](https://upskill.coach/prompts/prompt-gtm-mcp-terminal) | Prompt | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator | none yet | [md](https://upskill.coach/prompts/prompt-gtm-mcp-terminal.md) |
| [Owner-blocker batching protocol](https://upskill.coach/prompts/owner-blocker-batching) | Prompt | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator, Owner's operator, Capital & forecasting, Content producer, Any agent | none yet | [md](https://upskill.coach/prompts/owner-blocker-batching.md) |
| [Paper-trading discipline](https://upskill.coach/prompts/paper-trading-discipline) | Prompt | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Capital & forecasting | none yet | [md](https://upskill.coach/prompts/paper-trading-discipline.md) |
| [Venture Operator guardrails](https://upskill.coach/prompts/prompt-venture-guardrails) | Prompt | pass | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator, Owner's operator | none yet | [md](https://upskill.coach/prompts/prompt-venture-guardrails.md) |
| [seo-audit](https://upskill.coach/skills/coreyhaines31-marketingskills-seo-audit) | Skill | pass (repo) | 55,243 | 230,263 | MIT | 2026-10-15 | Venture operator | none yet | [md](https://upskill.coach/skills/coreyhaines31-marketingskills-seo-audit.md) |
| [composio](https://upskill.coach/skills/composiohq-composio-composio) | Skill | pass (repo) | 30,613 | 7,540 | MIT | 2026-10-17 | Any agent | none yet | [md](https://upskill.coach/skills/composiohq-composio-composio.md) |
| [web-quality-audit](https://upskill.coach/skills/addyosmani-web-quality-skills-web-quality-audit) | Skill | pass (repo) | 2,956 | 31,235 | MIT | 2026-08-24 | Any agent | none yet | [md](https://upskill.coach/skills/addyosmani-web-quality-skills-web-quality-audit.md) |
| [ai](https://upskill.coach/mcp/stripe-ai-mcp) | MCP | pass (repo) | 1,955 | n/a | MIT | 2026-10-17 | Capital & forecasting | none yet | [md](https://upskill.coach/mcp/stripe-ai-mcp.md) |
| [firecrawl-seo-audit](https://upskill.coach/skills/firecrawl-firecrawl-workflows-firecrawl-seo-audit) | Skill | pass (repo) | 195 | 31,818 | ISC | 2026-10-17 | Venture operator | none yet | [md](https://upskill.coach/skills/firecrawl-firecrawl-workflows-firecrawl-seo-audit.md) |
| [HubSpot MCP plugins (official)](https://upskill.coach/mcp/hubspot-mcp) | MCP | pass (repo) | 4 | n/a | Apache-2.0 | 2026-10-12 | Venture operator, Owner's operator | -2 | [md](https://upskill.coach/mcp/hubspot-mcp.md) |

## Popular but not yet scanned (top 20 by GitHub stars)

| Item | Kind | Security scan | GitHub stars | skills.sh installs | License | Last commit | Job types | Agent verdict score | Markdown |
|---|---|---|---|---|---|---|---|---|---|
| [LinkedIn MCP Server (community)](https://upskill.coach/mcp/linkedin-mcp) | MCP | review (repo) | 3,908 | n/a | Apache-2.0 | 2026-10-16 | Venture operator | none yet | [md](https://upskill.coach/mcp/linkedin-mcp.md) |
| [Agent phone number for SMS codes (Cooper phone) - coming soon](https://upskill.coach/skills/agent-phone-sms) | Skill | review | n/a | n/a | Avatar 8 LLC house item | unknown | Venture operator, Owner's operator | none yet | [md](https://upskill.coach/skills/agent-phone-sms.md) |
| [Clay MCP (official, hosted)](https://upskill.coach/mcp/clay-mcp) | MCP | review (repo) | n/a | n/a | unknown | unknown | Venture operator | none yet | [md](https://upskill.coach/mcp/clay-mcp.md) |
| [affaan-m/ECC](https://upskill.coach/repos/affaan-m-ecc) | Repo | not scanned | 282,379 | n/a | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/repos/affaan-m-ecc.md) |
| [django-patterns](https://upskill.coach/skills/affaan-m-ecc-django-patterns) | Skill | not scanned | 282,379 | 12,486 | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-django-patterns.md) |
| [django-security](https://upskill.coach/skills/affaan-m-ecc-django-security) | Skill | not scanned | 282,379 | 11,723 | MIT | 2026-10-15 | Any agent | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-django-security.md) |
| [ECC](https://upskill.coach/mcp/affaan-m-ecc-mcp) | MCP | not scanned | 282,379 | n/a | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/mcp/affaan-m-ecc-mcp.md) |
| [laravel-security](https://upskill.coach/skills/affaan-m-ecc-laravel-security) | Skill | not scanned | 282,379 | 11,415 | MIT | 2026-10-15 | Any agent | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-laravel-security.md) |
| [prompt-optimizer](https://upskill.coach/skills/affaan-m-ecc-prompt-optimizer) | Skill | not scanned | 282,379 | 11,875 | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-prompt-optimizer.md) |
| [security-review](https://upskill.coach/skills/affaan-m-ecc-security-review) | Skill | not scanned | 282,379 | 17,942 | MIT | 2026-10-15 | Any agent | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-security-review.md) |
| [springboot-patterns](https://upskill.coach/skills/affaan-m-ecc-springboot-patterns) | Skill | not scanned | 282,379 | 12,829 | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-springboot-patterns.md) |
| [springboot-security](https://upskill.coach/skills/affaan-m-ecc-springboot-security) | Skill | not scanned | 282,379 | 11,536 | MIT | 2026-10-15 | Any agent | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-springboot-security.md) |
| [strategic-compact](https://upskill.coach/skills/affaan-m-ecc-strategic-compact) | Skill | not scanned | 282,379 | 11,221 | MIT | 2026-10-15 | Owner's operator | none yet | [md](https://upskill.coach/skills/affaan-m-ecc-strategic-compact.md) |
| [memory-leak-audit](https://upskill.coach/skills/microsoft-vscode-memory-leak-audit) | Skill | not scanned | 193,792 | 3,208 | MIT | 2026-10-17 | Any agent | none yet | [md](https://upskill.coach/skills/microsoft-vscode-memory-leak-audit.md) |
| [ponytail-audit](https://upskill.coach/skills/dietrichgebert-ponytail-ponytail-audit) | Skill | not scanned | 166,142 | 39,003 | MIT | 2026-10-16 | Any agent | none yet | [md](https://upskill.coach/skills/dietrichgebert-ponytail-ponytail-audit.md) |
| [security-and-hardening](https://upskill.coach/skills/addyosmani-agent-skills-security-and-hardening) | Skill | not scanned | 107,809 | 62,587 | MIT | 2026-10-13 | Any agent | none yet | [md](https://upskill.coach/skills/addyosmani-agent-skills-security-and-hardening.md) |
| [audit](https://upskill.coach/skills/pbakaus-impeccable-audit) | Skill | not scanned | 82,345 | 81,858 | Apache-2.0 | 2026-10-17 | Any agent | none yet | [md](https://upskill.coach/skills/pbakaus-impeccable-audit.md) |
| [api-security-best-practices](https://upskill.coach/skills/sickn33-agentic-awesome-skills-api-security-best-practices) | Skill | not scanned | 47,777 | 8,803 | MIT | 2026-10-17 | Any agent | none yet | [md](https://upskill.coach/skills/sickn33-agentic-awesome-skills-api-security-best-practices.md) |
| [nextjs-supabase-auth](https://upskill.coach/skills/sickn33-agentic-awesome-skills-nextjs-supabase-auth) | Skill | not scanned | 47,777 | 6,536 | MIT | 2026-10-17 | Any agent | none yet | [md](https://upskill.coach/skills/sickn33-agentic-awesome-skills-nextjs-supabase-auth.md) |
| [alibaba/open-code-review](https://upskill.coach/repos/alibaba-open-code-review) | Repo | not scanned | 47,546 | n/a | Apache-2.0 | 2026-10-17 | Owner's operator | none yet | [md](https://upskill.coach/repos/alibaba-open-code-review.md) |

Columns: GitHub stars come from the source repo on GitHub; skills.sh installs come from skills.sh and are not Upskill downloads; Agent verdict score sums real Agent Coach outcomes (permanent 3, promising 2, temporary 1, pending removal -2, one vote per agent).

Category: https://upskill.coach/category/security.md