# set_cards_ease_factors

A write tool on the Anki MCP server.

Agent View of the PolicyLayer registry record for `set_cards_ease_factors`. HTML page: https://policylayer.com/tools/io-github-arielbk-anki-mcp/set-cards-ease-factors

## Facts

- Tool: `set_cards_ease_factors`
- Server: Anki (`@arielbk/anki-mcp`) — https://policylayer.com/tools/io-github-arielbk-anki-mcp.md
- Install: `npx -y @arielbk/anki-mcp`
- Homepage: https://github.com/arielbk/anki-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- 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": "set_cards_ease_factors",
    "arguments": {}
  }
}
```

## Why set_cards_ease_factors is rated Medium

This tool modifies existing card metadata (ease factors control SRS intervals in Anki) rather than creating new entities or deleting data. The change is reversible by setting different ease factor values. Classified as Write rather than Execute because it updates a specific parameter rather than triggering arbitrary code execution.

From the tool's own definition: "Tool name 'set_cards_ease_factors' directly indicates modification of card properties (ease factors). No description provided, but the verb 'set' combined with sibling tools like 'add_note', 'add_tags_to_notes', and 'answer_cards' establishes this as a data…"

## Use case

AI agents use set_cards_ease_factors to create or update resources in Anki, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Anki environment.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_cards_ease_factors": {
      "limits": [
        {
          "counter": "set_cards_ease_factors_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Anki (97)

- `clear_unused_tags` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/clear-unused-tags.md
- `delete_decks` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/delete-decks.md
- `delete_media_file` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/delete-media-file.md
- `delete_notes` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/delete-notes.md
- `gui_exit_anki` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-exit-anki.md
- `manage_decks` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/manage-decks.md
- `model_field_remove` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/model-field-remove.md
- `model_template_remove` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/model-template-remove.md
- `remove_deck_config` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/remove-deck-config.md
- `remove_empty_notes` — Destructive — https://policylayer.com/tools/io-github-arielbk-anki-mcp/remove-empty-notes.md
- `anki_operations` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/anki-operations.md
- `gui_answer_card` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-answer-card.md
- `gui_deck_browser` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-deck-browser.md
- `gui_deck_review` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-deck-review.md
- `gui_select_card` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-select-card.md
- `gui_select_note` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-select-note.md
- `gui_show_answer` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-show-answer.md
- `gui_show_question` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-show-question.md
- `gui_start_card_timer` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-start-card-timer.md
- `relearn_cards` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/relearn-cards.md
- `reload_collection` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/reload-collection.md
- `study_session` — Execute — https://policylayer.com/tools/io-github-arielbk-anki-mcp/study-session.md
- `api_reflect` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/api-reflect.md
- `card_reviews` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/card-reviews.md
- `export_package` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/export-package.md
- `gui_browse` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-browse.md
- `gui_undo` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/gui-undo.md
- `multi` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/multi.md
- `request_permission` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/request-permission.md
- `sync` — Other — https://policylayer.com/tools/io-github-arielbk-anki-mcp/sync.md
- …and 67 more: https://policylayer.com/tools/io-github-arielbk-anki-mcp.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=io-github-arielbk-anki-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-arielbk-anki-mcp
