Read the full VIC-II state with interpreted values. Returns all VIC-II registers with semantic meaning: - Border and background colors (with names) - Graphics mode (text, bitmap, multicolor, etc.) - Screen and character memory locations - Scroll values - Raster position - Sprite enable bits This ...
AI agents call readVicState 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 and queries the state of the VIC-II video chip registers from the VICE emulator. It performs no modifications, deletions, or external operations—it only reads and interprets existing data structures. This is a classic Read category tool with minimal security risk. The confidence is high because the name, description, and purpose all clearly indicate a read-only operation.
From the tool's definition Tool name is 'readVicState' and description states it 'Read[s] the full VIC-II state with interpreted values' and 'Returns all VIC-II registers'.
Attacks that exploit this kind of access
Read the full VIC-II state with interpreted values. Returns all VIC-II registers with semantic meaning: - Border and background colors (with names) - Graphics mode (text, bitmap, multicolor, etc.) - Screen and character memory locations - Scroll values - Raster position - Sprite enable bits This is the high-level view of the video chip. Use for understanding display configuration. Related tools: readScreen, readSprites, readMemory (for $D000-$D02E). 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 readVicState: 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.
readVicState 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 readVicState 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 readVicState. 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.
readVicState 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.
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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