set_goal

SERVERMeridian SOURCE@meridianmcp/mcp

Medium RISK CLASS

Category Write

Parameters 31 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-ajc3xc-meridian/set-goal.md

WHAT IT DOES

What set_goal does on Meridian

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

Parameter	Type	Required	Description
`content`	string	Yes
`project_id`	string	—
`project_name`	string	—	Project name — an alternative to project_id; resolved to the id internally. project_id wins if both are given.

Parameters from the server's own tool schema.

RISK

Why set_goal is rated Medium

The tool creates or modifies persistent goal state data in a backend system (Write category). Severity is medium because: (1) modifications are reversible (the description notes 'Delete individual tasks, notes, or decisions where supported'), (2) the blast radius is limited to project metadata and goal artifacts rather than core system integrity or financial data, and (3) the tool operates within an expected…

From the tool's definition Tool description explicitly states 'Set or update the goal state' and confirms that 'supplied text and project/session metadata are sent to and stored in Meridian's service' or local database.

Risk signalsAccepts raw HTML/template content (content)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_goal safely

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

set_goal Rate-limited

set_goal 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": {
    "set_goal": {
      "limits": [
        {
          "counter": "set_goal_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 Meridian, apply this rule, and every set_goal call is checked against it from then on.

FAQ

Questions about set_goal

What does the set_goal tool do? +

[MAINTENANCE] Set or update the goal state. Persistent-state disclosure: on hosted Meridian, supplied text and project/session metadata are sent to and stored in Meridian's service; self-hosted deployments keep them in the configured local SQLite/Postgres database. This data is visible in the dashboard/API and later project context or handoffs. Delete individual tasks, notes, or decisions where supported, or delete the project/account using the documented controls. Do not include secrets. It is categorised as a Write tool in the Meridian MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does set_goal accept? +

set_goal accepts 3 parameters: content, project_id, project_name. Required: content. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_goal? +

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

What risk level is set_goal? +

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

Can I rate-limit set_goal? +

Yes. Add a rate_limit block to the set_goal 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 set_goal completely? +

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

set_goal is provided by the Meridian MCP server (@meridianmcp/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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