linear_add_reaction

A write tool on the All MCP server.

SERVERAllmcp SOURCEPerception-Dynamics-Inc/allmcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/allmcp/linear-add-reaction.md

WHAT IT DOES

What linear_add_reaction does on Allmcp

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

RISK

Why linear_add_reaction is rated Medium

The tool performs a reversible write operation—adding a reaction is a modification that can be undone (removed). Without a description, confidence is reduced, but the name strongly suggests a Write rather than Execute action. Severity is medium because reactions are minor data modifications with limited blast radius, though on a shared issue tracker they could affect team visibility/experience.

From the tool's definition Tool name 'linear_add_reaction' indicates it adds a reaction (likely an emoji or sentiment marker) to an issue or comment in Linear. The 'add' operation is a create/modify action.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs linear_add_reaction safely

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

linear_add_reaction Rate-limited

linear_add_reaction 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": {
    "linear_add_reaction": {
      "limits": [
        {
          "counter": "linear_add_reaction_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 Allmcp, apply this rule, and every linear_add_reaction call is checked against it from then on.

FAQ

Questions about linear_add_reaction

What does the linear_add_reaction tool do? +

linear_add_reaction is a write tool on the All MCP server. It is categorised as a Write tool in the Allmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on linear_add_reaction? +

Register the All MCP server in PolicyLayer and add a rule for linear_add_reaction: 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 Allmcp. Nothing to install.

What risk level is linear_add_reaction? +

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

Can I rate-limit linear_add_reaction? +

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

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

linear_add_reaction is provided by the All MCP server (Perception-Dynamics-Inc/allmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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