proto_infer_fields
Infer likely protocol fields from repeated hex payload samples.
This record as markdown: /tools/io-github-vmoranv-jshookmcp/proto-infer-fields.md
What proto_infer_fields does on Jshookmcp
AI agents call proto_infer_fields to retrieve information from Jshookmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why proto_infer_fields is rated Low
Analyzes existing data patterns without modifying or executing operations.
From the tool's definition Infer likely protocol fields from repeated hex payload samples.
Attacks that exploit this kind of access
The rule that runs proto_infer_fields safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For proto_infer_fields, this is the rule to start with:
proto_infer_fields is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every proto_infer_fields call is checked against it from then on.
Questions about proto_infer_fields
Infer likely protocol fields from repeated hex payload samples. It is categorised as a Read tool in the Jshookmcp MCP Server, which means it retrieves data without modifying state.
Register the Jshook MCP server in PolicyLayer and add a rule for proto_infer_fields: 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 Jshookmcp. Nothing to install.
proto_infer_fields is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the proto_infer_fields 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 proto_infer_fields. 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.
proto_infer_fields is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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