# run_estimator_tool

A execute tool on the Qiskit IBM Transpiler MCP Server MCP server.

Agent View of the PolicyLayer registry record for `run_estimator_tool`. HTML page: https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/run-estimator-tool

## Facts

- Tool: `run_estimator_tool`
- Server: Qiskit IBM Transpiler MCP Server (`qiskit-ibm-transpiler-mcp-server`) — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server.md
- Install: `npx -y qiskit-ibm-transpiler-mcp-server`
- Homepage: https://github.com/Qiskit/mcp-servers
- Risk category: Execute (High risk)
- Registry record: grade F, identity verified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run_estimator_tool",
    "arguments": {}
  }
}
```

## Why run_estimator_tool is rated High

The tool appears to execute quantum estimation operations rather than merely read or write data. While the description is empty, the name combined with the context of a Qiskit transpiler server (which compiles quantum circuits) and sibling tools that suggest quantum circuit execution suggests this tool runs code/computations.

From the tool's own definition: "Tool name 'run_estimator_tool' indicates execution of an estimator (likely a quantum circuit estimator in the Qiskit context)."

## Use case

AI agents invoke run_estimator_tool to trigger actions in Qiskit IBM Transpiler MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Qiskit IBM Transpiler MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "run_estimator_tool": {
      "limits": [
        {
          "counter": "run_estimator_tool_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Qiskit IBM Transpiler MCP Server (70)

- `cancel_job_tool` — Destructive — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/cancel-job-tool.md
- `delete_environment_tool` — Destructive — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/delete-environment-tool.md
- `delete_model_tool` — Destructive — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/delete-model-tool.md
- `delete_saved_account_tool` — Destructive — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/delete-saved-account-tool.md
- `ai_clifford_synthesis_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/ai-clifford-synthesis-tool.md
- `ai_linear_function_synthesis_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/ai-linear-function-synthesis-tool.md
- `ai_pauli_network_synthesis_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/ai-pauli-network-synthesis-tool.md
- `ai_permutation_synthesis_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/ai-permutation-synthesis-tool.md
- `ai_routing_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/ai-routing-tool.md
- `convert_qpy_to_qasm3_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/convert-qpy-to-qasm3-tool.md
- `generate_random_clifford_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/generate-random-clifford-tool.md
- `generate_random_linear_function_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/generate-random-linear-function-tool.md
- `hybrid_ai_transpile_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/hybrid-ai-transpile-tool.md
- `run_sampler_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/run-sampler-tool.md
- `start_tensorboard_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/start-tensorboard-tool.md
- `start_training_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/start-training-tool.md
- `stop_tensorboard_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/stop-tensorboard-tool.md
- `stop_training_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/stop-training-tool.md
- `synthesize_clifford_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/synthesize-clifford-tool.md
- `synthesize_linear_function_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/synthesize-linear-function-tool.md
- `synthesize_permutation_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/synthesize-permutation-tool.md
- `transpile_circuit_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/transpile-circuit-tool.md
- `wait_for_training_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/wait-for-training-tool.md
- `analyze_circuit_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/analyze-circuit-tool.md
- `batch_train_environments_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/batch-train-environments-tool.md
- `compare_optimization_levels_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/compare-optimization-levels-tool.md
- `create_clifford_env_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/create-clifford-env-tool.md
- `create_linear_function_env_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/create-linear-function-env-tool.md
- `create_permutation_env_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/create-permutation-env-tool.md
- `find_optimal_qubit_chains_tool` — Other — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/find-optimal-qubit-chains-tool.md
- …and 40 more: https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=qiskit-ibm-transpiler-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/qiskit-ibm-transpiler-mcp-server