A
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qualityC
maintenancePlan optimal container & truck loads: 3D layouts, right-size the container mix, and check utilization, centre of gravity, crush protection and securing across 200+ equipment types.
Last updated
16
MIT
Zhihuo RotoSpider Layout
Server Details
Rotomolding mold-on-arm layout feasibility: which molds fit on a machine arm/spider, and how.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
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Tool Definition Quality
A4.3/5.0
Tool DescriptionsA
Average 4.6/5 across 2 of 2 tools scored.
Server CoherenceA
Disambiguation5/5
The two tools have completely distinct purposes: one checks mold layouts on a rotational-molding machine, the other sends feedback. There is no overlap or ambiguity between them.
Naming Consistency5/5
Both tools follow a consistent verb_noun pattern: 'check_mold_layout' and 'send_feedback'. The naming is predictable and clear.
Tool Count3/5
With only two tools, the set feels thin. The primary layout tool is substantial, but the inclusion of a generic feedback tool does not round out a cohesive purpose. A couple more domain-specific tools would make the count more appropriate.
Completeness3/5
The main tool covers the core layout-checking task well, but the server lacks complementary operations such as listing machines or retrieving layout history. The feedback tool is unrelated to the domain, leaving the surface incomplete for a full workflow.
Available Tools
2 toolscheck_mold_layoutARead-onlyIdempotentInspect
Check whether molds fit together on a rotational-molding machine arm.
Every answer comes from the deterministic RotoSpider geometric layout
engine: rotation-envelope and dead-height checks, pairwise mold-to-mold
clearance, offset-arm riser selection, and ring arrangements for 3+
identical molds. It never returns a physically invalid layout.
Args:
molds: List of mold objects. Use one explicit unit convention:
Box/frame mold: {"length_mm": L, "width_mm": W, "height_mm": H}.
Cylinder/tank mold: {"diameter_mm": D, "height_mm": H}.
Decimal-inch aliases are length_in, width_in, height_in, and
diameter_in. Each value is converted once to canonical
micrometres; do not give both aliases for the same value.
Optional per mold: "name", "weight_kg", "quantity" (default 1).
machine: Public-sample straight-arm preset. Available models are
listed in the tool description. Leave empty AND give no
explicit geometry to scan all presets ("which machine can take
these molds?").
arm_type: 'straight' (dual spiders) or 'offset' (single-spider
offset/L arm). Empty = both.
spider_diameter_mm: Custom machine - spider (mounting plate)
diameter. Giving this plus envelope_diameter_mm switches to
custom-machine mode instead of presets.
envelope_diameter_mm: Custom machine - rotation envelope diameter
(for offset arms: the vertical envelope diameter).
dead_height_mm: Custom straight arm - unusable center height
between the upper and lower spider surfaces.
offset_spider_y_mm: Custom offset arm - spider Y offset from the
spider center to the sphere center (required for custom offset).
offset_horz_diameter_mm: Custom offset arm - horizontal usable
envelope diameter after side trim (defaults to envelope).
riser_heights_mm: Custom offset arm - available riser heights; the
solver picks the best (or none).
*_in: Decimal-inch aliases for the matching custom-arm and
clearance *_mm arguments.
max_load_weight_kg: Optional arm weight capacity; the solver loads
molds only up to this total weight.
clearance_target_mm: Target mold-to-mold clearance (default 300).
clearance_min_mm: Minimum acceptable clearance (default 150).
display_unit: 'mm' (default) or 'in'. Canonical result fields remain
millimetres; 'in' adds a display projection rounded to 0.00001 in.
Returns a summary sentence plus per-arm results: feasible, placed vs
requested counts (per mold type when available), selected riser height,
spider utilization, center-of-gravity offset, achieved clearance, and
the engine's reason when molds do not fit.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| molds | Yes | ||
| machine | No | ||
| arm_type | No | ||
| display_unit | No | mm | |
| dead_height_in | No | ||
| dead_height_mm | No | ||
| clearance_min_in | No | ||
| clearance_min_mm | No | ||
| riser_heights_in | No | ||
| riser_heights_mm | No | ||
| max_load_weight_kg | No | ||
| offset_spider_y_in | No | ||
| offset_spider_y_mm | No | ||
| spider_diameter_in | No | ||
| spider_diameter_mm | No | ||
| clearance_target_in | No | ||
| clearance_target_mm | No | ||
| envelope_diameter_in | No | ||
| envelope_diameter_mm | No | ||
| offset_horz_diameter_in | No | ||
| offset_horz_diameter_mm | No |
Tool Definition Quality
A4.9/5.0
Behavior5/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond annotations (readOnlyHint, idempotentHint), the description adds meaningful behavioral context: it is deterministic, never returns a physically invalid layout, converts inputs to canonical micrometres, and describes result contents. This is valuable disclosure not present in annotations.
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 long but well-structured with clear paragraphs and an Args section. Every major parameter group is covered, and the information density is appropriate for a tool with 21 parameters. It is front-loaded with the purpose and then systematically explains usage.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the high complexity (21 parameters, no enums, no output schema), the description covers all necessary aspects: input formats, modes, tolerances, unit handling, and the summarized return fields. The only minor gap is the missing machine model list, which is a small part of an otherwise complete description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description provides detailed explanations for most parameters, including mold object formats, unit aliases, and custom-arm geometry. However, it references 'Available models are listed in the tool description' without actually listing the machine model names, leaving a gap for the `machine` parameter. This slightly reduces completeness for that parameter.
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 opens with a specific verb and resource: 'Check whether molds fit together on a rotational-molding machine arm.' It clearly distinguishes itself from the sibling tool 'send_feedback' by describing a deterministic geometric layout engine.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives explicit usage modes: preset machine, custom machine, and scanning all presets when machine is empty. It also explains when to use custom parameters (e.g., 'Giving this plus envelope_diameter_mm switches to custom-machine mode') and default behaviors (e.g., empty arm_type checks both).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
send_feedbackAInspect
Relay a user question, bug report, or suggestion to the maintainers.
Args:
message: The user's feedback text (required).
contact: Optional reply address the user volunteers.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| contact | No | ||
| message | Yes |
Tool Definition Quality
A4.2/5.0
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate non-readonly, and description confirms it relays feedback. No additional behavioral context (e.g., auth, rate limits) provided.
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?
Two sentences plus Args list, efficient and no wasted words.
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?
Simple tool with two parameters; description covers their purpose adequately. No output schema, but return value is not critical for this action.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema has 0% description coverage; description adds meaning for both parameters, explaining message is required and contact is optional reply address.
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?
Description clearly states the verb 'relay' and resource 'feedback to maintainers', distinguishing it from the sibling 'check_mold_layout'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly lists when to use (user question, bug report, suggestion) but lacks when-not-to-use or alternatives.
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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