Analyze a specific jar file and extract detailed information
AI agents call analyze_jar to retrieve information from Maven Decoder MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes data from jar files in the local repository without modifying, deleting, or executing code. It performs static analysis similar to sibling tools like extract_source_code and get_dependencies, which are clearly read operations. The blast radius of misuse is minimal—worst case, an agent wastes resources analyzing unintended jars, but no data is modified or destroyed.
From the tool's definition Tool name 'analyze_jar' and description 'extract detailed information' indicate data retrieval and analysis operations.
Documented attack patterns abuse exactly the kind of access analyze_jar gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Maven Decoder MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for analyze_jar:
{
"version": "1",
"default": "deny",
"tools": {
"analyze_jar": {}
}
}analyze_jar is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Analyze a specific jar file and extract detailed information. It is categorised as a Read tool in the Maven Decoder MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Maven Decoder MCP Server MCP server in PolicyLayer and add a rule for analyze_jar: 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 Maven Decoder MCP Server. Nothing to install.
analyze_jar 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 analyze_jar 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 analyze_jar. 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.
analyze_jar is provided by the Maven Decoder MCP Server MCP server (salitaba/maven-decoder-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Maven Decoder MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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14 Maven Decoder MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.