append_cos_preference

SERVERFreedom Mcp SOURCEhttps://twuluxmoognlwtmaoqgo.supabase.co/functions/v1/freedom-mcp

Medium RISK CLASS

Category Write

Parameters 21 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-getfreedomos-freedom-mcp/append-cos-preference.md

WHAT IT DOES

What append_cos_preference does on Freedom Mcp

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

Parameter	Type	Required	Description
`note`	string	Yes	One short preference (≤500 chars), e.g. "When describing cards, paraphrase titles — do not read dashes or ids aloud."
`companyId`	string	—	FreedomOS company id to act within (you must be a member). Required for company-scoped tools.

Parameters from the server's own tool schema.

RISK

Why append_cos_preference is rated Medium

This tool creates or modifies user-specific preference data (appends a preference record that persists across sessions). It is reversible and has no destructive, financial, or code-execution properties. The scope is limited to individual operator preferences with no blast radius beyond personalization settings. The note that first use may require manager approval confirms it is a Write operation (not Execute).

From the tool's definition Append one durable speech/taste preference for THIS operator only... Use when they say something was hard to follow, how cards should sound, or 'remember I prefer…'. For this user_id only — does not edit the shared FreedomOS CoS template.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs append_cos_preference safely

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

append_cos_preference Rate-limited

append_cos_preference 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": {
    "append_cos_preference": {
      "limits": [
        {
          "counter": "append_cos_preference_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 Freedom Mcp, apply this rule, and every append_cos_preference call is checked against it from then on.

FAQ

Questions about append_cos_preference

What does the append_cos_preference tool do? +

Append one durable speech/taste preference for THIS operator only (re-injected on their next voice session mint). Use when they say something was hard to follow, how cards should sound, or "remember I prefer…". For this user_id only — does not edit the shared FreedomOS CoS template. Apply the note in the current call when you can. [write-tier — first use may require a manager's approval; a from-now-on approval makes future calls seamless, a just-once approval re-asks next time.]. It is categorised as a Write tool in the Freedom Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does append_cos_preference accept? +

append_cos_preference accepts 2 parameters: note, companyId. Required: note. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on append_cos_preference? +

Register the Freedom MCP server in PolicyLayer and add a rule for append_cos_preference: 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 Freedom Mcp. Nothing to install.

What risk level is append_cos_preference? +

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

Can I rate-limit append_cos_preference? +

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

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

append_cos_preference is provided by the Freedom MCP server (https://twuluxmoognlwtmaoqgo.supabase.co/functions/v1/freedom-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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