MCP Tool Reference Medium Risk

add-labels

add labels

Part of the Trello MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

Write

WHEN AI AGENTS USE THIS TOOL

AI agents use add-labels to create or modify resources in Trello. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON ADD-LABELS

Without a policy, an AI agent could call add-labels repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Trello.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

trello.yaml 
tools:
  add-labels:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Trello policy for all 15 tools.

DETAILS

Tool Name

add-labels

Category

Write

MCP Server

Trello MCP Server

Risk Level

Medium

MORE TRELLO TOOLS

add-comment Write
add comment
add-comments Write
add comments
add-label Write
add label
create-card Write
create card
create-cards Write
create cards
create-label Write
create label
create-labels Write
create labels
move-card Write
move card

View all 15 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the add-labels tool do?

add labels. It is categorised as a Write tool in the Trello MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add-labels?

Add a rule in your Intercept YAML policy under the tools section for add-labels. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Trello MCP server.

What risk level is add-labels?

add-labels is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add-labels?

Yes. Add a rate_limit block to the add-labels rule in your Intercept 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.

How do I block add-labels completely?

Set action: deny in the Intercept policy for add-labels. 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.

What MCP server provides add-labels?

add-labels is provided by the Trello MCP server (). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON TRELLO

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Trello policy →