update_opportunity

Update deal fields. customFields are JSONB-merged.

SERVERStarfield SOURCE@adrata/starfield-mcp

Medium RISK CLASS

Category Write

Parameters 71 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/adrata-starfield-mcp/update-opportunity.md

WHAT IT DOES

What update_opportunity does on Starfield

AI agents use update_opportunity to create or update resources in Starfield, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Starfield environment.

Parameter	Type	Required
`id`	string	Yes
`name`	string	—
`stage`	string	—
`amount`	number	—
`closeDate`	string	—
`probability`	number	—
`customFields`	object	—

Parameters from the server's own tool schema.

RISK

Why update_opportunity is rated Medium

An AI agent can call update_opportunity faster than any human can review: one bad instruction and it creates or modifies resources in Starfield by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_opportunity safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Starfield, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_opportunity, this is the rule to start with:

update_opportunity Rate-limited

update_opportunity 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_opportunity": {
      "limits": [
        {
          "counter": "update_opportunity_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Starfield, apply this rule, and every update_opportunity call is checked against it from then on.

FAQ

Questions about update_opportunity

What does the update_opportunity tool do? +

Update deal fields. customFields are JSONB-merged. It is categorised as a Write tool in the Starfield MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does update_opportunity accept? +

update_opportunity accepts 7 parameters: id, name, stage, amount, closeDate, probability, customFields. Required: id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on update_opportunity? +

Register the Starfield MCP server in PolicyLayer and add a rule for update_opportunity: 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 Starfield. Nothing to install.

What risk level is update_opportunity? +

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

Can I rate-limit update_opportunity? +

Yes. Add a rate_limit block to the update_opportunity 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.

How do I block update_opportunity completely? +

Set action: deny in the PolicyLayer policy for update_opportunity. 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 update_opportunity? +

update_opportunity is provided by the Starfield MCP server (@adrata/starfield-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Starfield, and thousands of servers like it.

This server

All 233 Starfield tools →

Across the catalogue

aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →