Synchronize styles and content across all documents in a book
AI agents use synchronize_book to create or update resources in InDesign UXP MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your InDesign UXP MCP Server environment.
Synchronization operations modify data across multiple documents by updating styles and content—a reversible change operation. This is Write rather than Execute because it performs a specific domain operation (style/content sync) rather than arbitrary code execution. It is not Destructive because synchronization is typically reversible (styles and content can be re-synchronized or undone).
From the tool's definition Tool description states it 'synchronize[s] styles and content across all documents in a book', which modifies content in potentially multiple documents. The word 'synchronize' indicates bidirectional or multi-document updates that alter existing data.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access synchronize_book gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and InDesign UXP MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for synchronize_book:
{
"version": "1",
"default": "deny",
"tools": {
"synchronize_book": {
"limits": [
{
"counter": "synchronize_book_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}synchronize_book 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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Synchronize styles and content across all documents in a book. It is categorised as a Write tool in the InDesign UXP MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the InDesign UXP MCP Server MCP server in PolicyLayer and add a rule for synchronize_book: 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 InDesign UXP MCP Server. Nothing to install.
synchronize_book 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 synchronize_book 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 synchronize_book. 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.
synchronize_book is provided by the InDesign UXP MCP Server MCP server (theloniuser/indesign-uxp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 135 InDesign UXP MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
135 InDesign UXP MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.