调用后台的 Gemini 浏览器会话生成高质量图片。 【重要：长耗时工具】 - 本工具为同步阻塞调用，内部会等待 Gemini 生成完毕后才返回最终结果（成功/失败+文件路径）。 - 典型耗时 60~120 秒，复杂图片可能更久。调用时 timeoutMs 务必设为 ≥120000（2分钟）。 - 禁止在未收到本工具最终返回前结束对话或向用户报告
AI agents invoke gemini_generate_image to trigger actions in Gemini Skill. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool triggers an external operation — it drives a real browser session via CDP to interact with the Gemini web interface and generate images. The effects depend on the prompt/arguments passed and involve external service calls (network, browser automation). It falls under Execute because it runs browser actions and triggers external operations.
From the tool's definition 调用后台的 Gemini 浏览器会话生成高质量图片 (calls background Gemini browser session to generate high-quality images); controls Gemini web interface via CDP
Documented attack patterns abuse exactly the kind of access gemini_generate_image gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Gemini Skill, and nothing reaches the server without passing your rules. This is the rule we recommend for gemini_generate_image:
{
"version": "1",
"default": "deny",
"tools": {
"gemini_generate_image": {
"limits": [
{
"counter": "gemini_generate_image_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}gemini_generate_image stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
调用后台的 Gemini 浏览器会话生成高质量图片。 【重要：长耗时工具】 - 本工具为同步阻塞调用，内部会等待 Gemini 生成完毕后才返回最终结果（成功/失败+文件路径）。 - 典型耗时 60~120 秒，复杂图片可能更久。调用时 timeoutMs 务必设为 ≥120000（2分钟）。 - 禁止在未收到本工具最终返回前结束对话或向用户报告. It is categorised as a Execute tool in the Gemini Skill MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Gemini Skill MCP server in PolicyLayer and add a rule for gemini_generate_image: 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 Gemini Skill. Nothing to install.
gemini_generate_image is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the gemini_generate_image 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 gemini_generate_image. 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.
gemini_generate_image is provided by the Gemini Skill MCP server (wjz-p/gemini-skill). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Gemini Skill tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
21 Gemini Skill tools catalogued and risk-classified — across an index of 42,500+ MCP servers.