# spine_learn_from_corpus

Use this to build the local Spine Corpus Learning Layer. It scans .json and .spine projects, exports .spine files to .cache/corpus-json when needed, extracts naming/animation/statistical features, and writes markdown/json knowledge files. It never modifies or deletes corpus source files. Single-project failures are recorded and do not stop the batch. Do not use it for live animation generation or UI automation.

Agent View of the PolicyLayer registry record for `spine_learn_from_corpus`. HTML page: https://policylayer.com/tools/1425sd-spine-mcp/spine-learn-from-corpus

## Facts

- Tool: `spine_learn_from_corpus`
- 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_learn_from_corpus",
    "arguments": {}
  }
}
```

## Why spine_learn_from_corpus is rated High

spine_learn_from_corpus triggers real processes with real consequences. An agent gone sideways doesn't fire it once. It starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

## Use case

AI agents invoke spine_learn_from_corpus 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_learn_from_corpus": {
      "limits": [
        {
          "counter": "spine_learn_from_corpus_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Spine (15)

- `spine_build_animation_from_json` — Execute — https://policylayer.com/tools/1425sd-spine-mcp/spine-build-animation-from-json.md
- `spine_clean` — Execute — https://policylayer.com/tools/1425sd-spine-mcp/spine-clean.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