Returns the content of the presentation file encoded as a Base64 string.
AI agents call get_presentation_file_b64 to retrieve information from PPTX 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 the current state of a presentation file and encodes it for transmission or export. It performs no mutations, deletions, or external operations—only reads and returns data in a different format. The presence of sibling destructive/write tools (delete_shape, add_slide, batch_update) confirms this is a read-only accessor.
From the tool's definition Tool name 'get_presentation_file_b64' and description 'Returns the content of the presentation file encoded as a Base64 string' indicate retrieval and serialization of presentation data with no modifications or side effects.
Documented attack patterns abuse exactly the kind of access get_presentation_file_b64 gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PPTX MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_presentation_file_b64:
{
"version": "1",
"default": "deny",
"tools": {
"get_presentation_file_b64": {}
}
}get_presentation_file_b64 is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Returns the content of the presentation file encoded as a Base64 string. It is categorised as a Read tool in the PPTX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PPTX MCP Server MCP server in PolicyLayer and add a rule for get_presentation_file_b64: 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 PPTX MCP Server. Nothing to install.
get_presentation_file_b64 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 get_presentation_file_b64 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 get_presentation_file_b64. 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.
get_presentation_file_b64 is provided by the PPTX MCP Server MCP server (samos123/pptx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 PPTX MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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11 PPTX MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.