# cancel_job_tool

Cancel a specific job.

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

## Facts

- Tool: `cancel_job_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: Destructive (Critical risk)
- Registry record: grade F, identity verified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

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

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

## Why cancel_job_tool is rated Critical

Cancelling a job is an irreversible action — once a quantum job submitted to IBM's infrastructure is cancelled, it cannot be restarted or recovered. This constitutes an irreversible termination of an operation, fitting the Destructive category. Severity is high because cancelling a running quantum job wastes allocated compute resources and may disrupt workflows that depend on its results.

From the tool's own definition: "Cancel a specific job"

## Use case

AI agents call cancel_job_tool to permanently remove resources in Qiskit IBM Transpiler MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. 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",
  "hide": [
    "cancel_job_tool"
  ]
}
```

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

- `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_estimator_tool` — Execute — https://policylayer.com/tools/qiskit-ibm-transpiler-mcp-server/run-estimator-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