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kh6570
by kh6570

Remove Junction

remove_junction
Destructive

Removes a junction at given x,y coordinates from an LTspice .asc schematic to adjust implicit wire connections.

Instructions

Explain that LTspice junctions are implicit.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
xYes
yYes
schematic_pathYes
workspace_rootNoOptional per-call workspace root override.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.0.1

TDQS

D1.5/5.0
Behavior2/5

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

Annotations already declare destructiveHint=true, readOnlyHint=false and idempotentHint=false, so the safety profile is covered elsewhere. The description adds no behavioral context (what happens to attached wires, whether the coordinates must match an existing junction) and its lone statement about implicit junctions is more confusing than informative.

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

Conciseness2/5

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

It is short, but the brevity comes from under-specification rather than economy. The single sentence is not front-loaded with the action and does not earn its place as a tool description.

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

Completeness1/5

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

For a destructive, 4-parameter edit tool with no output schema and thin annotation/schema coverage, the description should explain the mutation and its effects. Instead it delivers an unrelated editorial remark, leaving the definition effectively undocumented.

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

Parameters2/5

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

Schema description coverage is only 25% (workspace_root is the sole documented property), so the description is expected to compensate for x, y and schematic_path. It supplies nothing about coordinate units, origin, or path format; only the self-evident parameter names carry any meaning.

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

Purpose1/5

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

The description reads as a stray internal note ("Explain that LTspice junctions are implicit.") rather than a statement of what the tool does. It never says the tool removes a junction at (x, y) from a schematic, so an agent cannot confirm the verb or resource from the text.

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

Usage Guidelines1/5

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

No when-to-use, when-not-to-use, or alternative is given. The obvious sibling add_junction is not referenced, and there is no guidance on prerequisites such as the schematic needing to be open or the coordinates needing to correspond to an existing junction.

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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