# recommend_material

A read tool on the Kiln MCP server.

Agent View of the PolicyLayer registry record for `recommend_material`. HTML page: https://policylayer.com/tools/kiln/recommend-material

## Facts

- Tool: `recommend_material`
- 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": "recommend_material",
    "arguments": {}
  }
}
```

## Why recommend_material is rated Low

Based on the name alone, 'recommend_material' appears to be a lookup or query function that returns material suggestions—consistent with Read category. However, the empty description prevents confirmation of whether it has side effects (e.g., persisting preferences, triggering material changes). Low confidence reflects this ambiguity.

From the tool's own definition: "Tool name 'recommend_material' suggests it queries or retrieves material recommendations without modifying printer state or executing operations. Description is empty, limiting certainty."

## Use case

AI agents call recommend_material 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": {
    "recommend_material": {}
  }
}
```

## 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