Measure bond angle defined by three atoms in degrees.
AI agents call measure_angle to retrieve information from ChimeraX MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads/computes a geometric measurement (bond angle) from existing atomic data without modifying any structure or data. It is a pure read/query operation with no side effects.
From the tool's definition Measure bond angle defined by three atoms in degrees
Attacks that exploit this kind of access
Measure bond angle defined by three atoms in degrees. It is categorised as a Read tool in the ChimeraX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ChimeraX MCP Server MCP server in PolicyLayer and add a rule for measure_angle: 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 ChimeraX MCP Server. Nothing to install.
measure_angle 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 measure_angle 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 measure_angle. 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.
measure_angle is provided by the ChimeraX MCP Server MCP server (mahynotch/chimerax-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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