overstory_mail_log
Read recent Overstory QA mail messages — capture-complete, stability results,
This record as markdown: /tools/io-github-homenshum-nodebench/overstory-mail-log.md
What overstory_mail_log does on Nodebench
AI agents call overstory_mail_log to retrieve information from Nodebench without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why overstory_mail_log is rated Low
This tool retrieves historical email data from Overstory QA systems (capture-complete, stability results). It performs no writes, deletions, code execution, or financial operations. The verb 'read' and 'capture' indicate data retrieval only. Low severity because email logs contain non-sensitive QA metadata with limited blast radius if misused.
From the tool's definition Tool name includes 'mail_log' and description states 'Read recent Overstory QA mail messages' — explicitly a read operation that retrieves message data without modification or side effects.
Attacks that exploit this kind of access
The rule that runs overstory_mail_log safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nodebench, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For overstory_mail_log, this is the rule to start with:
overstory_mail_log 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 Nodebench, apply this rule, and every overstory_mail_log call is checked against it from then on.
Questions about overstory_mail_log
Read recent Overstory QA mail messages — capture-complete, stability results,. It is categorised as a Read tool in the Nodebench MCP Server, which means it retrieves data without modifying state.
Register the Nodebench MCP server in PolicyLayer and add a rule for overstory_mail_log: 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 Nodebench. Nothing to install.
overstory_mail_log 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 overstory_mail_log 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 overstory_mail_log. 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.
overstory_mail_log is provided by the Nodebench MCP server (nodebench-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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