AI agents use ppt_format_chart_axis to create or update resources in Ppt — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ppt environment.
This tool modifies presentation structure by formatting chart axis properties, which is a Write operation—reversible changes to existing data. It does not delete content (not Destructive), execute arbitrary code (not Execute), or involve financial transactions (not Financial). While the description is empty, the tool name and context within a PowerPoint manipulation server clearly indicate Write-class behavior.
From the tool's definition Tool name 'ppt_format_chart_axis' indicates modification of chart axis formatting properties in PowerPoint presentations. The 'format' verb combined with 'chart_axis' suggests reversible alterations to presentation content.
Documented attack patterns abuse exactly the kind of access ppt_format_chart_axis gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ppt, and nothing reaches the server without passing your rules. This is the rule we recommend for ppt_format_chart_axis:
{
"version": "1",
"default": "deny",
"tools": {
"ppt_format_chart_axis": {
"limits": [
{
"counter": "ppt_format_chart_axis_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}ppt_format_chart_axis stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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ppt_format_chart_axis. It is categorised as a Write tool in the Ppt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ppt MCP server in PolicyLayer and add a rule for ppt_format_chart_axis: 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 Ppt. Nothing to install.
ppt_format_chart_axis is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ppt_format_chart_axis 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 ppt_format_chart_axis. 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.
ppt_format_chart_axis is provided by the Ppt MCP server (ykuwai/ppt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 156 Ppt tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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156 Ppt tools catalogued and risk-classified — across an index of 42,500+ MCP servers.