Generate a fishbone diagram chart to uses a fish skeleton, like structure to display the causes or effects of a core problem, with the problem as the fish head and the causes/effects as the fish bones. It suits problems that can be split into multiple related factors.
AI agents use generate_fishbone_diagram to create or update resources in Chart Offline — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Chart Offline environment.
This tool creates new data artifacts (SVG diagrams) but does not modify or delete existing data, execute arbitrary code, or cause irreversible changes. It is purely generative and local. Severity is low because a fishbone diagram is a visualization aid with no side effects on external systems or data integrity. The offline nature and deterministic input-to-output mapping further reduce risk.
From the tool's definition Tool generates and creates SVG chart output (fishbone diagram). The verb 'generate' combined with description of creating a visual diagram structure indicates data creation.
Documented attack patterns abuse exactly the kind of access generate_fishbone_diagram gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Chart Offline, and nothing reaches the server without passing your rules. This is the rule we recommend for generate_fishbone_diagram:
{
"version": "1",
"default": "deny",
"tools": {
"generate_fishbone_diagram": {
"limits": [
{
"counter": "generate_fishbone_diagram_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}generate_fishbone_diagram 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.
Free to start. No card required.
Generate a fishbone diagram chart to uses a fish skeleton, like structure to display the causes or effects of a core problem, with the problem as the fish head and the causes/effects as the fish bones. It suits problems that can be split into multiple related factors. It is categorised as a Write tool in the Chart Offline MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Chart Offline MCP server in PolicyLayer and add a rule for generate_fishbone_diagram: 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 Chart Offline. Nothing to install.
generate_fishbone_diagram 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 generate_fishbone_diagram 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 generate_fishbone_diagram. 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.
generate_fishbone_diagram is provided by the Chart Offline MCP server (liukeyu800/mcp-server-chart-offline). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Chart Offline, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
15 Chart Offline tools catalogued and risk-classified — across an index of 43,000+ MCP servers.