# spine_build_animation_from_json

One-step JSON animation pipeline: analyze source JSON, generate animated copy, import to .spine, optionally pack images, export, and open. Use for Spine JSON plus images. Not for .spine sources, mesh, IK, weights, or UI automation.

Agent View of the PolicyLayer registry record for `spine_build_animation_from_json`. HTML page: https://policylayer.com/tools/1425sd-spine-mcp/spine-build-animation-from-json

## Facts

- Tool: `spine_build_animation_from_json`
- Server: Spine (`1425sd/spine-mcp`) — https://policylayer.com/tools/1425sd-spine-mcp.md
- Homepage: https://github.com/1425sd/spine-MCP
- Risk category: Execute (High 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": "spine_build_animation_from_json",
    "arguments": {}
  }
}
```

## Why spine_build_animation_from_json is rated High

This tool executes a multi-step automated pipeline (analyze, generate, import, pack, export, open) that triggers multiple external operations and file system modifications. It spans Write and Execute categories; since it runs a chain of CLI operations with broad effects including file generation, import, and export, Execute is the most appropriate category.

From the tool's own definition: "One-step JSON animation pipeline: analyze source JSON, generate animated copy, import to .spine, optionally pack images, export, and open"

## Use case

AI agents invoke spine_build_animation_from_json to trigger actions in Spine. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "spine_build_animation_from_json": {
      "limits": [
        {
          "counter": "spine_build_animation_from_json_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Spine (15)

- `spine_clean` — Execute — https://policylayer.com/tools/1425sd-spine-mcp/spine-clean.md
- `spine_learn_from_corpus` — Execute — https://policylayer.com/tools/1425sd-spine-mcp/spine-learn-from-corpus.md
- `spine_open_project` — Execute — https://policylayer.com/tools/1425sd-spine-mcp/spine-open-project.md
- `spine_analyze_json` — Read — https://policylayer.com/tools/1425sd-spine-mcp/spine-analyze-json.md
- `spine_get_generation_guide` — Read — https://policylayer.com/tools/1425sd-spine-mcp/spine-get-generation-guide.md
- `spine_info` — Read — https://policylayer.com/tools/1425sd-spine-mcp/spine-info.md
- `spine_recommend_animation_params` — Read — https://policylayer.com/tools/1425sd-spine-mcp/spine-recommend-animation-params.md
- `spine_scan_corpus` — Read — https://policylayer.com/tools/1425sd-spine-mcp/spine-scan-corpus.md
- `spine_add_simple_animation` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-add-simple-animation.md
- `spine_build_animation_from_existing_project` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-build-animation-from-existing-project.md
- `spine_control_bones` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-control-bones.md
- `spine_create_loading_animation_preset` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-create-loading-animation-preset.md
- `spine_export` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-export.md
- `spine_generate_animation_json` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-generate-animation-json.md
- `spine_import_json` — Write — https://policylayer.com/tools/1425sd-spine-mcp/spine-import-json.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=1425sd-spine-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/1425sd-spine-mcp