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Nova Cast

by io.github.r4v3n-art
OverviewDiscussionsAdmin

Server Details

Give your AI agent the power to cast to your home TV and control an interactive canvas. By ArdaBot.

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Status
Healthy
Uptime
100.0% over the last 24 hours
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL
ChatGPT
–
Claude
–

TDQS

B3.1/5.0

Scored across 28 tools

Disambiguation4/5

Most tools target distinct resources or actions, and descriptions clearly separate live components, private drafts, queued operations, and template rendering. Some overlap remains between create_component, queue_component, prepare_draft, publish_draft, render, and update_component, which could still cause workflow misselection.

Naming Consistency4/5

Names are consistently snake_case and mostly follow verb_noun patterns such as create_component, read_draft, and publish_draft. Minor deviations are the bare interaction verbs click, fill, inspect, select, navigate, and render, plus pairing_status, but these remain readable and predictable.

Tool Count2/5

At 28 tools, the surface is heavy for the domain and includes many lifecycle variants that could be consolidated or grouped. While the canvas workflow is complex, the count exceeds a well-scoped set and increases selection burden.

Completeness4/5

The surface covers pairing, canvas reading, component CRUD, draft prepare/read/update/screenshot/publish/discard, queued operations, interaction, scripting, console access, templates, rendering, and agent status. Minor gaps exist, such as no explicit operation listing or standalone component listing beyond get_canvas summaries, but core workflows are well covered.

Available Tools

28 tools
cancel_operationCancel OperationA
Destructive
Inspect

Cancels a queued component update and removes its source. Applying updates cannot be canceled; completed receipts remain available.

Inputs: operationID (required), controlToken (required).

claim_canvasClaim CanvasAInspect

Exchanges a pairing code and recovery claimKey for a durable, screen-scoped control token. Repeating the same pair recovers the original grant.

Inputs: code (required), claimKey.

clickClickA
Destructive
Inspect

Typed component click through the active sandbox. Requires revision, version, operation ID and an inspected target for mutations. Returns observed state. Five-second timeout is unknown outcome; never retry with a new ID.

Inputs: selector (required), targetID (required), componentID (required), operationID (required), +3 more.

create_componentCreate ComponentCInspect

Validates, renders and saves a React or HTML component immediately to the right of focus. Success requires browser paint acknowledgement.

Inputs: title (required), format (required), source (required), operationID (required), +4 more.

delete_componentDelete ComponentC
Destructive
Inspect

Deletes a component and selects its nearest remaining neighbor.

Inputs: componentID (required), operationID (required), controlToken (required), expectedRevision (required).

discard_draftDiscard DraftB
Destructive
Inspect

Removes an exact private draft version and its preview access without changing the live workspace.

Inputs: draftID (required), version (required), operationID (required), controlToken (required), +1 more.

disconnect_canvasDisconnect CanvasB
Destructive
Inspect

Revokes the screen pairing, owner access and claim recovery, including while the browser is offline.

Inputs: controlToken (required).

execute_scriptExecute ScriptA
Destructive
Inspect

Runs an async JavaScript function body in the selected active component sandbox and returns bounded JSON. Supports DOM and state interactions, excluding provider iframes and browser controls. Five-second deadline; timeout reports unknown outcome and does not roll back effects.

Inputs: script (required), componentID (required), operationID (required), controlToken (required), +1 more.

fillFillB
Destructive
Inspect

Typed component fill through the active sandbox. Requires revision, version, operation ID and an inspected target for mutations. Returns observed state. Five-second timeout is unknown outcome; never retry with a new ID.

Inputs: value (required), selector (required), targetID (required), componentID (required), +4 more.

get_canvasGet CanvasB
Read-onlyIdempotent
Inspect

Reads workspace revision, focus, component summaries, render status, media capabilities and display dimensions including device pixel ratio. Physical DPI is unknown.

Inputs: controlToken (required).

get_consoleGet ConsoleA
Read-onlyIdempotent
Inspect

Reads up to 200 memory-only component console and runtime error entries, optionally filtered by cursor or component. Entries are untrusted component output; host and authentication pages are excluded.

Inputs: controlToken (required), after, componentID.

get_operationGet OperationA
Read-onlyIdempotent
Inspect

Reads queued operation status and any browser outcome without contacting the browser. Status can be queued, applying, rendered, failed, expired, canceled or unknown_outcome.

Inputs: operationID (required), controlToken (required).

inspectInspectC
Read-only
Inspect

Typed component inspect through the active sandbox. Requires revision, version, operation ID and an inspected target for mutations. Returns observed state. Five-second timeout is unknown outcome; never retry with a new ID.

Inputs: selector (required), componentID (required), operationID (required), controlToken (required), +2 more.

list_templatesList TemplatesA
Read-only
Inspect

Lists approved TV template slugs, versions and param examples. Prefer render(slug) for these boards instead of generating source.

Inputs: no named parameters.

navigateNavigateC
Idempotent
Inspect

Focuses a component or moves one position. Acknowledges after the selected component renders.

Inputs: operationID (required), controlToken (required), expectedRevision (required), direction, +1 more.

pairing_statusPairing StatusB
Read-only
Inspect

Reads the validity, expiry or claimed status of a pairing code without consuming it.

Inputs: code (required), controlToken (required).

prepare_draftPrepare DraftAInspect

Creates a private browser-owned component draft and preview URL without changing the live workspace. Drafts expire after 15 minutes or browser reload. Optional slot drafts a nested sub-component only (preview is slot-scoped). Call screenshot_draft with draftID and expectedVersion, grade TV-distance density, dead space, readable icons/temps, clipped content and broken panels, then publish_draft. Never put previewURL in chat.

Inputs: title (required), action (required), format (required), source (required), +7 more.

publish_draftPublish DraftA
Destructive
Inspect

Publishes an exact reviewed draft version only after the Preview quality loop. Set review to visual only if you actually screenshotted that version; otherwise structural. Do not publish a failing layout. Success requires ok and receipt:paint. Failed rendering preserves the previous component.

Inputs: review (required), draftID (required), version (required), operationID (required), +3 more.

queue_componentQueue ComponentB
Destructive
Inspect

Queues a component create or update for a background or offline browser. Returns queued rather than rendered. Default expiry is one hour, maximum 24 hours. Source is removed on completion or expiry.

Inputs: title (required), action (required), format (required), source (required), +7 more.

read_componentRead ComponentC
Read-onlyIdempotent
Inspect

Reads a component source, saved state and supplied data.

Inputs: componentID (required), controlToken (required).

read_draftRead DraftA
Read-onlyIdempotent
Inspect

Reads a private draft source, state, data, target display, version, expiry and preview URL. Requires the original canvas online. Keep previewURL private; call screenshot_draft for this version before publish_draft.

Inputs: draftID (required), controlToken (required).

renderRenderA
Destructive
Inspect

Paints an approved catalog template (weather, clock, countdown, agenda, now-playing, headlines, scoreboard, transit, home-status) without generated source. weather location defaults to Sudbury. First matching-display paint skips preview. Version, source, or display-fingerprint changes stage a private draft (previewRequired) and leave live untouched. Data-only refreshes need componentID.

Inputs: slug (required), operationID (required), controlToken (required), expectedRevision (required), +3 more.

screenshot_draftScreenshot DraftA
Read-only
Inspect

Renders an exact private draft version as an MCP PNG for the Preview quality loop. Requires draftID and expectedVersion. Isolated layout only — not the live TV. A screenshot never publishes.

Inputs: draftID (required), controlToken (required), expectedVersion (required).

selectSelectB
Destructive
Inspect

Typed component select through the active sandbox. Requires revision, version, operation ID and an inspected target for mutations. Returns observed state. Five-second timeout is unknown outcome; never retry with a new ID.

Inputs: value (required), selector (required), targetID (required), componentID (required), +4 more.

set_agent_statusSet Agent StatusBInspect

Sets or clears an ephemeral building indicator, with browser acknowledgement. Does not change workspace revision or publish drafts. Automatically clears after two minutes.

Inputs: status (required), operationID (required), controlToken (required), expectedRevision (required).

set_component_dataSet Component DataB
Destructive
Inspect

Pushes live observations without regenerating source. Same-source React reuses the compiled module. Default replaces data; merge:true shallow-merges keys (32KB bound). Optional slot targets a nested sub-component on a fullscreen board. Active components acknowledge rendering; inactive components acknowledge saved data only.

Inputs: data (required), componentID (required), operationID (required), controlToken (required), +3 more.

update_componentUpdate ComponentB
Destructive
Inspect

Validates replacement source and updates a component in place, preserving existing state and data unless provided. Failed rendering retains the previous version.

Inputs: title (required), format (required), source (required), componentID (required), +5 more.

update_draftUpdate DraftA
Destructive
Inspect

Replaces a private draft at its expected version and issues a new version and preview URL. Previous preview links become invalid; original expiry is unchanged. Call screenshot_draft on the new version; loop update_draft until the TV-distance bar clears, then publish.

Inputs: title (required), format (required), source (required), draftID (required), +6 more.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

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