ATMcp

29 tools. 20 can modify or destroy data without limits.

2 destructive tools with no built-in limits. Policy required.

Last updated:

20 can modify or destroy data
9 read-only
29 tools total

Community server · catalogue entry verified 02/07/2026

How to control ATMcp ↓

What ATMcp exposes to your agents

Read (9) Write / Execute (18) Destructive / Financial (2)
Critical Risk

The most dangerous ATMcp tools

20 of ATMcp's 29 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

How to control ATMcp

PolicyLayer is an MCP gateway — it sits between your AI agents and ATMcp, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations
{
  "cancel_directive": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations
{
  "append_output": {
    "limits": [
      {
        "counter": "append_output_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "get_agent_output": {
    "limits": [
      {
        "counter": "get_agent_output_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

  1. Create a free account and register ATMcp — nothing to install.
  2. Add these rules — paste them, or build them visually. Tune the limits to your setup.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
ENFORCE POLICY ON ATMCP →

Instant setup, no code required.

All 29 ATMcp tools

WRITE 16 tools
Write append_output Stream a chunk of YOUR output/progress so the console can watch it live (optionally Write claim_directive Mark a directive addressed to you as 'running' before you start executing it. Write claim_next_task Claim the highest-priority eligible (deps satisfied) open task in one round-trip. Write claim_task Atomically claim a specific open task. Returns a fencing_token you must present Write complete_task Mark a task done. Returns eligible_unblocked — downstream tasks now claimable. Write create_goal Create a team goal that tasks can roll up into. Write create_task Create a task. depends_on lists task_ids that must be done first; weight Write fail_task Report a task failed. Re-queued (open) until max_attempts, then dead-lettered (failed). Write heartbeat Refresh your presence (~every 10s). Also renews any task lease you hold and Write join_team Join (or re-join) a team. The join token may be passed here or sent as an Write leave_team Gracefully leave the team: releases held tasks and marks you offline. Write post_knowledge Share a finding. Identical content (same title/body/tags) is auto-deduped; Write release_task Voluntarily give a task back to the queue (instant re-queue, no lease wait). Write report_directive Report a directive finished: status must be 'done' or 'failed'. The issuer's Write set_memory Set a shared-memory key (LWW by team logical clock). Pass expected_version Write update_task_progress Report progress and renew your lease. status may be 'in_progress' or 'blocked'.

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

Questions about ATMcp

Can an AI agent delete data through the AT MCP server? +

Yes. The ATMcp server exposes 2 destructive tools including cancel_directive, retract_knowledge. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through ATMcp? +

The ATMcp server has 16 write tools including append_output, claim_directive, claim_next_task. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach ATMcp.

How many tools does the AT MCP server expose? +

29 tools across 4 categories: Destructive, Execute, Read, Write. 9 are read-only. 20 can modify, create, or delete data.

How do I enforce a policy on ATMcp? +

Register the AT MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every ATMcp tool call.

Deterministic rules across all 29 ATMcp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Instant setup, no code required.

29 ATMcp tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from AT's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →

// GET IN TOUCH

Have a question or want to learn more? Send us a message.

Message sent.

We'll get back to you soon.