This record as markdown: /tools/1shin-7-ya-frida-mcp/frida-spawn.md
What frida_spawn does on Ya Frida
AI agents invoke frida_spawn to trigger actions in Ya Frida. 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.
Why frida_spawn is rated High
'frida_spawn' almost certainly spawns (starts) a new process via the Frida instrumentation framework, which constitutes executing code or triggering external operations. The description is empty, lowering confidence slightly, but the tool name and server context strongly indicate process execution. Severity is high because spawning arbitrary processes on a device can have significant security implications.
From the tool's definition Tool name 'frida_spawn' on a Frida dynamic instrumentation server; Frida's spawn operation launches/starts a new process under instrumentation control.
Attacks that exploit this kind of access
The rule that runs frida_spawn safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ya Frida, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For frida_spawn, this is the rule to start with:
frida_spawn 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Ya Frida, apply this rule, and every frida_spawn call is checked against it from then on.
Questions about frida_spawn
frida_spawn is a execute tool on the Ya Frida MCP server. It is categorised as a Execute tool in the Ya Frida MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Ya Frida MCP server in PolicyLayer and add a rule for frida_spawn: 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 Ya Frida. Nothing to install.
frida_spawn 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 frida_spawn 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 frida_spawn. 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.
frida_spawn is provided by the Ya Frida MCP server (1shin-7/ya-frida-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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