# api_declare_variables

Declare variable NAMES on the workspace (shared across all collections) or on one collection, with a separate configuration-write approval. You can only declare name/secret/enabled — you can never write a secret value: do not pass any value, the host stores an empty declaration marked 待填写 and the human fills it in the 公共配置 panel. Variables that already exist with the same name are left completely untouched (their values are never overwritten by you). Use this to introduce appSecret / aesKey / aesIv before binding a crypto profile, then tell the human which names need values. Use the catalog revision from api_list as expectedRevision.

Agent View of the PolicyLayer registry record for `api_declare_variables`. HTML page: https://policylayer.com/tools/dutydeck/api-declare-variables

## Facts

- Tool: `api_declare_variables`
- Server: DutyDeck (`taokoplay/DutyDeck`) — https://policylayer.com/tools/dutydeck.md
- Homepage: https://github.com/taokoplay/DutyDeck
- 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": "api_declare_variables",
    "arguments": {}
  }
}
```

## Why api_declare_variables is rated Medium

An AI agent can call api_declare_variables faster than any human can review: one bad instruction and it creates or modifies resources in DutyDeck by the hundred, each call as confident as the last.

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on DutyDeck (246)

- `canvas_cancel_media_run` — Destructive — https://policylayer.com/tools/dutydeck/canvas-cancel-media-run.md
- `factory_cancel_experiment` — Destructive — https://policylayer.com/tools/dutydeck/factory-cancel-experiment.md
- `mcp__automation__delete_automation` — Destructive — https://policylayer.com/tools/dutydeck/mcp--automation--delete-automation.md
- `mcp__planning__delete_calendar_event` — Destructive — https://policylayer.com/tools/dutydeck/mcp--planning--delete-calendar-event.md
- `mcp__planning__delete_group` — Destructive — https://policylayer.com/tools/dutydeck/mcp--planning--delete-group.md
- `mcp__planning__delete_reminder` — Destructive — https://policylayer.com/tools/dutydeck/mcp--planning--delete-reminder.md
- `mcp__planning__delete_tag` — Destructive — https://policylayer.com/tools/dutydeck/mcp--planning--delete-tag.md
- `mcp__planning__delete_todo` — Destructive — https://policylayer.com/tools/dutydeck/mcp--planning--delete-todo.md
- `media_cancel_generation` — Destructive — https://policylayer.com/tools/dutydeck/media-cancel-generation.md
- `media_cancel_run` — Destructive — https://policylayer.com/tools/dutydeck/media-cancel-run.md
- `api_prepare_request` — Execute — https://policylayer.com/tools/dutydeck/api-prepare-request.md
- `api_run_scenario` — Execute — https://policylayer.com/tools/dutydeck/api-run-scenario.md
- `BrowserExecuteJavaScript` — Execute — https://policylayer.com/tools/dutydeck/browserexecutejavascript.md
- `BrowserNavigate` — Execute — https://policylayer.com/tools/dutydeck/browsernavigate.md
- `BrowserNewTab` — Execute — https://policylayer.com/tools/dutydeck/browsernewtab.md
- `BrowserWaitFor` — Execute — https://policylayer.com/tools/dutydeck/browserwaitfor.md
- `canvas_run_agent` — Execute — https://policylayer.com/tools/dutydeck/canvas-run-agent.md
- `canvas_run_nodes` — Execute — https://policylayer.com/tools/dutydeck/canvas-run-nodes.md
- `canvas_run_workflow` — Execute — https://policylayer.com/tools/dutydeck/canvas-run-workflow.md
- `canvas_task` — Execute — https://policylayer.com/tools/dutydeck/canvas-task.md
- `factory_advance_experiment` — Execute — https://policylayer.com/tools/dutydeck/factory-advance-experiment.md
- `factory_diagnose_run` — Execute — https://policylayer.com/tools/dutydeck/factory-diagnose-run.md
- `factory_retry_review` — Execute — https://policylayer.com/tools/dutydeck/factory-retry-review.md
- `factory_run_batch` — Execute — https://policylayer.com/tools/dutydeck/factory-run-batch.md
- `factory_run_scene` — Execute — https://policylayer.com/tools/dutydeck/factory-run-scene.md
- `factory_run_step` — Execute — https://policylayer.com/tools/dutydeck/factory-run-step.md
- `mcp__automation__run_automation_now` — Execute — https://policylayer.com/tools/dutydeck/mcp--automation--run-automation-now.md
- `mcp__collaboration__stop_delegation` — Execute — https://policylayer.com/tools/dutydeck/mcp--collaboration--stop-delegation.md
- `mcp__collaboration__stop_delegations` — Execute — https://policylayer.com/tools/dutydeck/mcp--collaboration--stop-delegations.md
- `mcp__collaboration__wait_for_delegations` — Execute — https://policylayer.com/tools/dutydeck/mcp--collaboration--wait-for-delegations.md
- …and 216 more: https://policylayer.com/tools/dutydeck.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=dutydeck · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dutydeck