# create_flow_abstraction

Build a two-pass Kyprianidis-style flow abstraction: an edge-tangent-flow (ETF) bilateral smoother followed by a flow-based DoG (FDoG) line extractor — oil-painting smooth interiors with crisp coherent ink edges. Creates two glslTOPs + companion textDATs under parent_path, fed by a Select TOP from the source TOP and terminated by a Null TOP. Strength/Edge/Iterations are exposed as live parent-par-bound uniforms; blur radius, sigmas and tau are baked in at build time. Iterations boosts effective ETF strength in-shader (single-input pass, no ping-pong feedback).

Agent View of the PolicyLayer registry record for `create_flow_abstraction`. HTML page: https://policylayer.com/tools/hybridlabor-api-aos/create-flow-abstraction

## Facts

- Tool: `create_flow_abstraction`
- Server: Aos (`@hybridlabor-api/aos`) — https://policylayer.com/tools/hybridlabor-api-aos.md
- Install: `npx -y @hybridlabor-api/aos`
- Homepage: git+https://github.com/hybridlabor-api/aos.git
- 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": "create_flow_abstraction",
    "arguments": {}
  }
}
```

## Why create_flow_abstraction is rated Medium

The tool creates and modifies project structures (glslTOPs, textDATs, Select TOP, Null TOP, and parameter bindings) within TouchDesigner's node graph. These are reversible operations—the created nodes can be deleted or modified later. While it executes shader code, the primary effect is structural creation of visual pipeline components.

From the tool's own definition: "Creates two glslTOPs + companion textDATs under parent_path, fed by a Select TOP from the source TOP and terminated by a Null TOP. Strength/Edge/Iterations are exposed as live parent-par-bound uniforms."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Aos (718)

- `archive_project` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/archive-project.md
- `clear_clip_flags` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/clear-clip-flags.md
- `clear_layer` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/clear-layer.md
- `close_window` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/close-window.md
- `delete_clip_markers` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-clip-markers.md
- `delete_color_group` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-color-group.md
- `delete_color_version` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-color-version.md
- `delete_face` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-face.md
- `delete_fusion_comp_on_clip` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-fusion-comp-on-clip.md
- `delete_layer` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-layer.md
- `delete_markers` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-markers.md
- `delete_media_pool_clips` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-media-pool-clips.md
- `delete_objects` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-objects.md
- `delete_project` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-project.md
- `delete_render_job` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-render-job.md
- `delete_stills` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-stills.md
- `delete_take` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-take.md
- `delete_td_node` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-td-node.md
- `delete_timeline_clips` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-timeline-clips.md
- `delete_track` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/delete-track.md
- `manage_checkpoint` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/manage-checkpoint.md
- `remoteos_manage_instance` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/remoteos-manage-instance.md
- `remove_background_clip` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/remove-background-clip.md
- `repair_network` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/repair-network.md
- `reset_all_grades` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/reset-all-grades.md
- `unlink_media_pool_clips` — Destructive — https://policylayer.com/tools/hybridlabor-api-aos/unlink-media-pool-clips.md
- `add_render_job` — Execute — https://policylayer.com/tools/hybridlabor-api-aos/add-render-job.md
- `ae_render_active_comp` — Execute — https://policylayer.com/tools/hybridlabor-api-aos/ae-render-active-comp.md
- `apply_glsl_top_mapping` — Execute — https://policylayer.com/tools/hybridlabor-api-aos/apply-glsl-top-mapping.md
- `apply_transform` — Execute — https://policylayer.com/tools/hybridlabor-api-aos/apply-transform.md
- …and 688 more: https://policylayer.com/tools/hybridlabor-api-aos.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=hybridlabor-api-aos · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hybridlabor-api-aos