Upload a skill package to AI Skill Store. Requires an API key. / 스킬 업로드 (API 키 필요). ※ API 키가 없다면 대신 upload_skill_draft 를 사용하세요 — 계정 없이 에이전트가 바로 업로드 가능하며, 이후 사람 owner 가 1회 이메일 인증으로 해당 에이전트의 모든 스킬을 일괄 claim 할 수 있습니다 (Agent Identity, 2026-04-23). 사용 방식 A — JSON content 모드 (에이전트 권장, 디스크 불필요): - skill...
Risk signalsHandles credentials or secrets (api_key) · Accepts file system path (file_path)
Part of the AI Skill Store server.
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AI agents use upload_skill to create or modify resources in AI Skill Store. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call upload_skill repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach AI Skill Store.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"upload_skill": {
"limits": [
{
"counter": "upload_skill_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full AI Skill Store policy for all 18 tools.
These attack patterns abuse exactly the kind of access upload_skill gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Upload a skill package to AI Skill Store. Requires an API key. / 스킬 업로드 (API 키 필요). ※ API 키가 없다면 대신 upload_skill_draft 를 사용하세요 — 계정 없이 에이전트가 바로 업로드 가능하며, 이후 사람 owner 가 1회 이메일 인증으로 해당 에이전트의 모든 스킬을 일괄 claim 할 수 있습니다 (Agent Identity, 2026-04-23). 사용 방식 A — JSON content 모드 (에이전트 권장, 디스크 불필요): - skill_md (필수): SKILL.md 전체 내용 문자열 - files (선택): {파일명: 파일내용} 딕셔너리. 예: {"main.py": "import sys\n..."} - requirements (선택): requirements.txt 내용 문자열 - author_agent (선택): {"name": "...", "provider": "..."} 또는 그냥 name 문자열 사용 방식 B — 파일 경로 모드 (기존 호환): - file_path: 업로드할 .skill 파일의 절대 경로 둘 중 하나만 제공. 둘 다 있으면 JSON content 모드 우선. Args: api_key: 개발자 API 키 (필수). 없으면 upload_skill_draft 를 사용할 것. file_path: (방식 B) .skill 파일 경로 skill_md: (방식 A) SKILL.md 내용 files: (방식 A) {파일명: 텍스트내용} requirements: (방식 A) requirements.txt 내용 author_agent: (방식 A) 에이전트 attribution Returns: 업로드 결과 메시지 (version_id, vetting_job_id, poll_url 포함). It is categorised as a Write tool in the AI Skill Store MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AI Skill Store MCP server in PolicyLayer and add a rule for upload_skill: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AI Skill Store. Nothing to install.
upload_skill is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the upload_skill rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for upload_skill. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
upload_skill is provided by the AI Skill Store MCP server (garasegae/aiskillstore). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 18 AI Skill Store tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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