# create_safety_blackout_chain Build a live-show safety primitive at the very end of the master output chain: deterministic fade-to-black over a configurable time, optional emergency single-frame hard-cut, optional hotkey + external watchdog trigger, and symmetric fade-in recovery. All reactivity is parameter-driven (Speed + Lookup CHOP + Math/Logic CHOPs) — no Python runs at cook time, so the chain is ALLOW_EXEC=0-safe. Complements create_panic (per-source kill+freeze) by being the master-output dimmer with grace, recovery, and a watchdog hook. Returns the container, source, dim, emergency-gate, composite, and output node paths plus the trigger merge/target/speed/lookup nodes. Agent View of the PolicyLayer registry record for `create_safety_blackout_chain`. HTML page: https://policylayer.com/tools/hybridlabor-api-aos/create-safety-blackout-chain ## Facts - Tool: `create_safety_blackout_chain` - 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_safety_blackout_chain", "arguments": {} } } ``` ## Why create_safety_blackout_chain is rated Medium This tool creates a new node chain (container, composite, output nodes, etc.) in the TouchDesigner project. It is a Write operation — it builds and configures network nodes reversibly. While it involves 'emergency' and 'blackout' language, these are UI/visual safety controls, not destructive data deletion. No code execution at cook time is explicitly noted ('no Python runs at cook time'). From the tool's own definition: "'Build a live-show safety primitive', 'Returns the container, source, dim, emergency-gate, composite, and output node' — creates and wires nodes in the TouchDesigner network" ## Use case AI agents use create_safety_blackout_chain 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_safety_blackout_chain": { "limits": [ { "counter": "create_safety_blackout_chain_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