set_rating
Set Lightroom star rating (0..5).
This record as markdown: /tools/4xiomdev-lightroom-classic-mcp/set-rating.md
What set_rating does on Lightroom Classic MCP
AI agents use set_rating to create or update resources in Lightroom Classic MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Lightroom Classic MCP environment.
Why set_rating is rated Medium
Setting ratings is a write operation that creates or modifies metadata within the Lightroom catalog. It is reversible (ratings can be changed or cleared), so it does not qualify as Destructive. The scope is limited to a single metadata field without executing code, shell commands, or external operations, so it is not Execute or Financial.
From the tool's definition Tool modifies Lightroom metadata (star rating from 0 to 5) on photos in the catalog, creating reversible changes to photo organization and quality assessment data.
Attacks that exploit this kind of access
The rule that runs set_rating safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Lightroom Classic MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For set_rating, this is the rule to start with:
set_rating 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Lightroom Classic MCP, apply this rule, and every set_rating call is checked against it from then on.
Questions about set_rating
Set Lightroom star rating (0..5). It is categorised as a Write tool in the Lightroom Classic MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Lightroom Classic MCP server in PolicyLayer and add a rule for set_rating: 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 Lightroom Classic MCP. Nothing to install.
set_rating 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 set_rating 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 set_rating. 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.
set_rating is provided by the Lightroom Classic MCP server (4xiomdev/lightroom-classic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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