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Group cards

group_cards

Wrap chosen cards in a labelled frame that encloses them. Returns the board and the new frame. Costs no credits. SIGN-IN REQUIRED: connect this server with OAuth (the host prompts for it), or add an API key header "Authorization: Bearer acd_live_…" created at https://aicontentdrop.com/settings/integrations.

Input Schema

NameRequiredDescriptionDefault
idsYesThe card ids to enclose.
labelYesThe frame's label, up to 200 characters.
revisionNoThe board revision this change is based on (from the last board you saw). Optional: when omitted the tool reads the current one first.
canvas_idYesThe board id, from list_canvases or create_canvas.

Output Schema

NameRequiredDescriptionDefault
cardYes
canvasYes
next_stepYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • removedOutput schema / properties / canvas / properties / updated_at
      Removed value: -{
      -  "type": [
      -    "string",
      -    "null"
      -  ]
      -}
    • changedOutput schema / properties / canvas / required
      Previous value: -[
      -  "id",
      -  "name",
      -  "revision",
      -  "card_count",
      -  "updated_at",
      -  "link",
      -  "cards",
      -  "edges"
      -]New value: +[
      +  "id",
      +  "name",
      +  "revision",
      +  "card_count",
      +  "link",
      +  "cards",
      +  "edges"
      +]
  2. Changed2 schema fields changed
    • addedOutput schema / properties / canvas / properties / edges / items / description
      Added value: +"A connection drawn from one card to the next: { id, source, target, label? }. data.role start_image means the source card's finished image is the target card's start frame."
    • addedOutput schema / properties / canvas / properties / edges / items / properties
      Added value: +{
      +  "id": {
      +    "type": "string"
      +  },
      +  "label": {
      +    "description": "Text drawn on the line, when it has one."
      +  },
      +  "source": {
      +    "description": "The card the connection starts from.",
      +    "type": "string"
      +  },
      +  "target": {
      +    "description": "The card it leads to.",
      +    "type": "string"
      +  }
      +}
  3. Added

TDQS

A3.7/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Goes well beyond the annotations by disclosing the return payload ('the board and the new frame'), the credit cost (zero), and a detailed sign-in requirement with both OAuth and API-key paths including where to mint the key. The annotations already cover read-only/destructive/idempotent flags, so the remaining gap is minor: it doesn't say what happens on a revision conflict or whether a repeat call nests a second frame.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The operative content is front-loaded in the first two short sentences (action, return, cost), with auth requirements clearly separated and labelled. The OAuth/API-key block is verbose but genuinely actionable for an unauthenticated agent, so it earns most of its space.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

An output schema exists, so return shape needn't be explained further, and the description covers auth and cost — the two things an agent most often gets wrong here. It is complete enough to invoke correctly; only mutation edge cases (repeat calls, revision mismatch) are unaddressed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and each of the four parameters, including the optional revision fallback behavior, is documented in the schema itself. The description adds no parameter-level meaning beyond what the schema already provides, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a concrete verb and resource: 'Wrap chosen cards in a labelled frame that encloses them', plus what it returns. This implicitly distinguishes it from add_frame (which creates a frame on its own) and arrange_cards, but the sibling differentiation is left for the agent to infer rather than stated.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

'Wrap chosen cards' implies the precondition that the cards already exist, and 'Costs no credits' hints at when it is cheap to use. However, there is no explicit guidance on when to choose this over add_frame, arrange_cards, or move_cards, and no stated exclusions or prerequisite ordering.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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