The request names "skill-scanner", which is indexed as an action of Sentry's catalog ("Scan agent skills for security issues") rather than a standalone product, so the closest dedicated tools are the skill security scanners: SkillTotal 2 and SkillsSafe 3, which both statically scan SKILL.md and MCP components for prompt injection and exfiltration. GitHub's security-review skill 4 is a broader codebase scanner that can serve as an alternative.
- 1
SkillTotalskilltotal.aiwebsite read, tools not yet checked
Free static scanner for MCP servers, agent skills and npm/PyPI packages that finds prompt injection, tool poisoning and exfiltration with file:line evidence, offered through an MCP server 2.
official:MCP server · SkillTotal+1 community tools built for it
- 2
SkillsSafe Security Scannerskillssafe.comwebsite read, tools not yet checked
Scans SKILL.md files, MCP configs and system prompts for credential theft, data exfiltration and prompt injection, with no signup required 3.
official:MCP server · SkillsSafe Security Scanner+1 community tools built for it
- 3
GitHubgithub.comverified and signed
Offers a security-review skill that is an AI-powered codebase security scanner tracing data flows to find vulnerabilities 4.
official:MCP server · @github/mcp-registrySDK · @github/copilot-sdklibrary · CodeQL: StubCLI · specifyrepository · copilot-engine-sdk+2,577 community tools built for it
for agents: security-review · secret-scanning · make-skill-template
Sources
- 2MCP Server & Agent Skill Security Scanner · SkillTotalskilltotal.ai · read 2026-10-29
- 3SkillsSafe — Free AI Skill Security Scanner | Check Before You Installskillssafe.com · read 2026-10-29
- 4GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
For agents: the 10 actions behind this answer
skill-scanner · skill-scanner verified and signed
Scan agent skills for security issues. Use when asked to "scan a skill", "audit a skill", "review skill security", "check skill for injection", "validate SKILL.md", or assess whether an agent skill is safe to install. Checks for prompt injection, malicious scripts, excessive permissions, secret expo
· SkillTotal website read, tools not yet checked
Free static scanner for MCP servers, agent skills and npm/PyPI packages. Finds prompt injection, tool poisoning and exfiltration with file:line evidence.
· SkillsSafe website read, tools not yet checked
Free security scanner for AI agent skills. Scan any SKILL.md, MCP config, or system_prompt for credential theft, data exfiltration, and prompt injection. Supports OpenClaw, Claude Code, Cursor, Codex. No signup required.
security-review · security-review verified and signed
AI-powered codebase security scanner that reasons about code like a security researcher — tracing data flows, understanding component interactions, and catching vulnerabilities that pattern-matching tools miss. Use this skill when asked to scan code for security vulnerabilities, find bugs, check for
create-skill · create-skill verified and signed
Scaffolds new agent skills for the dotnet/skills repository. Use when creating a new skill, generating SKILL.md files, writing a skill description that the runtime will actually route to, or setting up skill directory structures. Handles frontmatter generation, section templates, and validation guid
skill-creator · skill-creator verified and signed
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
workflows-doctor · workflows-doctor verified and signed
Diagnose Zapier Workflows skill and SDK CLI compatibility. Use when a workflow skill asks for a compatibility check, when SDK commands or flags are missing, when a workflow skill may be stale, or when updating workflow skills after an SDK CLI change.
rssSkillList · Cloudflare API verified and signed
List Threat Signals skills
mongodb-natural-language-querying · mongodb-natural-language-querying verified and signed
Generate read-only MongoDB queries (find) or aggregation pipelines using natural language, with collection schema context and sample documents. Use this skill whenever the user asks to write, create, or generate MongoDB queries, wants to filter/query/aggregate data in MongoDB, asks "how do I query..
get_skill · implementation-skills found in code, not yet checked
The full guidance for one skill, by name. Use list_skills first to pick the name.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.