Read color RAM ($D800-$DBE7) and return color values with names. Color RAM determines the foreground color of each character on screen. Returns: - 25x40 grid of color values (0-15) with names - Summary of colors used Related tools: readScreen, readVicState
AI agents call readColorRam to retrieve information from VICE C64 Emulator 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 emulator state (color memory) for inspection during debugging. It has no side effects, cannot modify data, and presents no execution or destructive risk. The read-only nature and debugging context (semantic interpretation of C64-specific data) confirm the Read category with low severity.
From the tool's definition Tool name 'readColorRam' and description 'Read color RAM' explicitly indicates a read operation. Returns color values and summary with no modification capabilities.
Attacks that exploit this kind of access
Read color RAM ($D800-$DBE7) and return color values with names. Color RAM determines the foreground color of each character on screen. Returns: - 25x40 grid of color values (0-15) with names - Summary of colors used Related tools: readScreen, readVicState. It is categorised as a Read tool in the VICE C64 Emulator MCP Server MCP Server, which means it retrieves data without modifying state.
Register the VICE C64 Emulator MCP Server MCP server in PolicyLayer and add a rule for readColorRam: 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 VICE C64 Emulator MCP Server. Nothing to install.
readColorRam 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 readColorRam 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 readColorRam. 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.
readColorRam is provided by the VICE C64 Emulator MCP Server MCP server (simen/vice-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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