AI agents call disassemble_teal to retrieve information from BNB Chain MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs bytecode analysis and decompilation, returning human-readable source representation. No side effects occur—it does not modify, delete, execute, or move funds. It is purely informational retrieval and analysis of existing bytecode. Severity is low because misuse would at worst reveal code logic or secrets embedded in bytecode, but the tool itself cannot damage systems or data.
From the tool's definition Tool name: disassemble_teal; Description: 'Disassemble TEAL bytecode back to source'. The verb 'disassemble' and the phrase 'back to source' indicate reverse-engineering or decompilation of bytecode, which is a read-only operation that retrieves and…
Documented attack patterns abuse exactly the kind of access disassemble_teal gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for disassemble_teal:
{
"version": "1",
"default": "deny",
"tools": {
"disassemble_teal": {}
}
}disassemble_teal is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Disassemble TEAL bytecode back to source. It is categorised as a Read tool in the BNB Chain MCP MCP Server, which means it retrieves data without modifying state.
Register the BNB Chain MCP server in PolicyLayer and add a rule for disassemble_teal: 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 BNB Chain MCP. Nothing to install.
disassemble_teal 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 disassemble_teal 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 disassemble_teal. 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.
disassemble_teal is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.