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miro_update_connector

Idempotent

Modify connector appearance: style (straight/elbowed/curved), arrow caps, caption text, or line color.

Instructions

Update a connector's style (straight/elbowed/curved), caps, caption, or color.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
board_idYesBoard ID
connector_idYesID of the connector to update
styleNoConnector style: straight, elbowed, curved
start_capNoStart arrow: none, arrow, filled_arrow, diamond, etc.
end_capNoEnd arrow: none, arrow, filled_arrow, diamond, etc.
captionNoText label on the connector
colorNoConnector line color (hex)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
successYes
idYes
messageYes
Behavior3/5

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

The annotation provides idempotentHint=true, indicating safe retries. The description adds no further behavioral details beyond listing updatable fields. It does not disclose side effects, permissions, or partial update behavior.

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

Conciseness5/5

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

The description is a single sentence that efficiently conveys the tool's purpose and key attributes without any redundant or extraneous text.

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?

For a parameterized update tool with a comprehensive input schema and output schema present, the description is sufficient. It could mention partial update behavior, but overall it provides the essential information.

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 coverage is 100% with well-described parameters. The description merely restates what the schema already provides (e.g., 'style (straight/elbowed/curved)'), adding no new meaning beyond the schema.

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

Purpose5/5

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

The description clearly states the verb 'Update' and the resource 'connector', and lists specific properties (style, caps, caption, color), distinguishing it from siblings that update different Miro items like boards or cards.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives. It does not indicate prerequisites, conditions, or scenarios where other tools would be preferred.

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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