# check_printer_health

Run a comprehensive health check on a printer.

Agent View of the PolicyLayer registry record for `check_printer_health`. HTML page: https://policylayer.com/tools/kiln/check-printer-health

## Facts

- Tool: `check_printer_health`
- Server: Kiln (`codeofaxel/Kiln`) — https://policylayer.com/tools/kiln.md
- Homepage: https://github.com/codeofaxel/Kiln
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why check_printer_health is rated Low

A health check is a diagnostic read operation that retrieves status information about the printer. It does not modify, execute commands, or delete data. The word 'comprehensive' suggests it queries multiple subsystems, but the nature of a health check is inherently non-destructive and read-only. Severity is low because misuse would at most expose printer telemetry.

From the tool's own definition: "'health check' implies reading/querying printer status diagnostics without modifying state"

## Use case

AI agents call check_printer_health to retrieve information from Kiln without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Kiln:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "check_printer_health": {}
  }
}
```

## Other tools on Kiln (401)

- `cancel_print` — Destructive — https://policylayer.com/tools/kiln/cancel-print.md
- `cancel_print_recovery` — Destructive — https://policylayer.com/tools/kiln/cancel-print-recovery.md
- `cancel_print_service_order` — Destructive — https://policylayer.com/tools/kiln/cancel-print-service-order.md
- `cancel_split_plan` — Destructive — https://policylayer.com/tools/kiln/cancel-split-plan.md
- `delete_agent_note` — Destructive — https://policylayer.com/tools/kiln/delete-agent-note.md
- `delete_cached_model` — Destructive — https://policylayer.com/tools/kiln/delete-cached-model.md
- `delete_file` — Destructive — https://policylayer.com/tools/kiln/delete-file.md
- `delete_shipping_profile` — Destructive — https://policylayer.com/tools/kiln/delete-shipping-profile.md
- `fulfillment_cancel` — Destructive — https://policylayer.com/tools/kiln/fulfillment-cancel.md
- `remove_mesh_floating_regions` — Destructive — https://policylayer.com/tools/kiln/remove-mesh-floating-regions.md
- `remove_spool` — Destructive — https://policylayer.com/tools/kiln/remove-spool.md
- `rollback_design_version` — Destructive — https://policylayer.com/tools/kiln/rollback-design-version.md
- `rollback_firmware` — Destructive — https://policylayer.com/tools/kiln/rollback-firmware.md
- `untrust_printer` — Destructive — https://policylayer.com/tools/kiln/untrust-printer.md
- `acquire_printer_lock` — Execute — https://policylayer.com/tools/kiln/acquire-printer-lock.md
- `arrange_parts_on_plate` — Execute — https://policylayer.com/tools/kiln/arrange-parts-on-plate.md
- `auto_arrange_parts_on_plate` — Execute — https://policylayer.com/tools/kiln/auto-arrange-parts-on-plate.md
- `auto_orient_model` — Execute — https://policylayer.com/tools/kiln/auto-orient-model.md
- `await_print_completion` — Execute — https://policylayer.com/tools/kiln/await-print-completion.md
- `boolean_mesh_op` — Execute — https://policylayer.com/tools/kiln/boolean-mesh-op.md
- `calibrate_direct` — Execute — https://policylayer.com/tools/kiln/calibrate-direct.md
- `clear_emergency_stop` — Execute — https://policylayer.com/tools/kiln/clear-emergency-stop.md
- `compile_scad` — Execute — https://policylayer.com/tools/kiln/compile-scad.md
- `complete_print_recovery` — Execute — https://policylayer.com/tools/kiln/complete-print-recovery.md
- `confirm_print_recovery` — Execute — https://policylayer.com/tools/kiln/confirm-print-recovery.md
- `design_to_gcode_pipeline` — Execute — https://policylayer.com/tools/kiln/design-to-gcode-pipeline.md
- `emergency_stop` — Execute — https://policylayer.com/tools/kiln/emergency-stop.md
- `emergency_trip_input` — Execute — https://policylayer.com/tools/kiln/emergency-trip-input.md
- `firmware_resume_print` — Execute — https://policylayer.com/tools/kiln/firmware-resume-print.md
- `force_print_oversize` — Execute — https://policylayer.com/tools/kiln/force-print-oversize.md
- …and 371 more: https://policylayer.com/tools/kiln.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=kiln · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/kiln