get_next_available_issue

THE RISK

Low Risk

Why get_next_available_issue needs a policy

This tool retrieves or queries issue data to find the next available item. It has no side effects—it does not create, modify, delete, or execute operations. The verb 'Gets' and the retrieval semantics clearly place this in the Read category with low severity, as an AI agent cannot cause harm by querying for available issues.

From the tool's definition Tool name 'get_next_available_issue' and description 'Gets the next available issue of a specific type' indicate a query/retrieval operation with no modification or deletion of data.

Documented attack patterns abuse exactly the kind of access get_next_available_issue gives an agent:

POLICY

How to control get_next_available_issue

PolicyLayer is an MCP gateway — it sits between your AI agents and Task Trellis MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_next_available_issue:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_next_available_issue": {}
  }
}

get_next_available_issue is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Task Trellis MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Task Trellis MCP tools

Destructive delete_issue Deletes an issue from the task trellis system Use this tool to permanently remove issues Destructive delete_project_file Deletes a named file from the project Destructive remove_attachment Deletes a named file from the managed attachments folder for a Trellis issue. Errors if t Write add_attachment Copies a file into the managed attachments folder for a Trellis issue. Errors if the issu Write append_issue_log Appends content to an issue Write append_modified_files Appends modified files information to a trellis issue in the task trellis system Use this Write claim_task Claims a task in the task trellis system Use this tool to assign yourself to available ta Write create_issue Creates a new issue in the task trellis system Use this tool to create new issues such as

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_next_available_issue

What does the get_next_available_issue tool do? +

Gets the next available issue of a specific type Use this tool to find the next available issue that. It is categorised as a Read tool in the Task Trellis MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_next_available_issue? +

Register the Task Trellis MCP server in PolicyLayer and add a rule for get_next_available_issue: 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 Task Trellis MCP. Nothing to install.

What risk level is get_next_available_issue? +

get_next_available_issue is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_next_available_issue? +

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

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

get_next_available_issue is provided by the Task Trellis MCP server (langadventurellc/task-trellis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Task Trellis MCP tool call.

Start from Task Trellis MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →