REPLACES the entire tag array on a node. Pass an empty array to clear all tags. Use add_tags / remove_tags for delta updates that preserve existing tags. Constraints: each tag max 50 chars; max 50 tags per node.
AI agents use set_tags to create or update resources in Pinako AI Bridge — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pinako AI Bridge environment.
The tool modifies metadata (tags) on nodes reversibly—users can add tags back or restore them. This qualifies as Write rather than Destructive because the action is reversible and doesn't permanently erase the underlying data. While it can remove all tags from a node, this is a metadata modification, not data destruction.
From the tool's definition Tool description explicitly states it 'REPLACES the entire tag array on a node' and allows clearing tags with an empty array. This is a modification operation that changes metadata on existing nodes.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
REPLACES the entire tag array on a node. Pass an empty array to clear all tags. Use add_tags / remove_tags for delta updates that preserve existing tags. Constraints: each tag max 50 chars; max 50 tags per node. It is categorised as a Write tool in the Pinako AI Bridge MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Pinako AI Bridge MCP server in PolicyLayer and add a rule for set_tags: 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 Pinako AI Bridge. Nothing to install.
set_tags 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_tags 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_tags. 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_tags is provided by the Pinako AI Bridge MCP server (teleomorph/pinako-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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