Commonlands Optics: M12 Lens and C-Mount Lens Finder + Field-of-View Calculator: tool descriptions scored com.commonlands/optics-mcp

tools/list taken: 2026-11-02 (UTC)
From: Official MCP Registry
Connected to: https://mcp.commonlands.com/mcp
Homepage: commonlands.com/pages/agentic-mcp-for-m12-lenses-and-optics
Repository: github.com/CommonlandsAbbe/commonlands-mcp
Scoring rules: v2
Removal: support@forecall.dev

Scores, issues and names only

This page shows how Commonlands Optics: M12 Lens and C-Mount Lens Finder + Field-of-View Calculator (com.commonlands/optics-mcp)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

servers/com.commonlands/optics-mcp

Average score: 55.2 / 100Cloudy
Tools: 24
Near-identical descriptions: 1

Across the server

Minor
The server's instructions are 2806 characters. Claude Code reads only the first 2,048 by default (Codex 0.154.0 reads them whole). Put what the server is for first.instructions_long

Tools whose descriptions are nearly the same

1 of 1 pairs shown, highest description similarity first.
Tool	Tool	Description similarity	Name similarity
calculate_field_of_view	match_lens_to_sensor	0.61	0.00

Tools

get_product

34 / 100Rain

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: meta, catalog, catalog.id.param_no_description
Minor
String arguments with no constraint or example: catalog.id.loose_string_param
Minor
Says nothing about what it returns.no_return_info

create_cart

42 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 7 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Arguments without a description: cart, cart.line_items, cart.line_items[].quantity, cart.line_items[].item, cart.line_items[].item.id, cart.context, cart.signals.param_no_description
Minor
String arguments with no constraint or example: cart.line_items[].item.id.loose_string_param
Minor
Says nothing about what it returns.no_return_info

get_cart

42 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 15 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Arguments without a description: meta.param_no_description
Minor
String arguments with no constraint or example: id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_checkout

42 / 100Cloudy

Purpose: 20 / 20
When to use: 0 / 20
Arguments: 15 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Arguments without a description: meta.param_no_description
Minor
String arguments with no constraint or example: id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

get_purchase_route_options

44 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 5 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: sku, quantity, sensorPartNumber, buyerIntent, agentType.param_no_description
Minor
String arguments with no constraint or example: sku, sensorPartNumber, buyerIntent, agentType.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description

update_cart

44 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 7 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: meta, id, cart, cart.line_items, cart.line_items[].id, cart.line_items[].quantity, cart.line_items[].item, cart.line_items[].item.id, cart.context.param_no_description
Minor
String arguments with no constraint or example: id, cart.line_items[].id, cart.line_items[].item.id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

prepare_shopify_purchase_handoff

45 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 5 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Arguments without a description: sku, quantity, sensorPartNumber, selectedVariantId.param_no_description
Minor
String arguments with no constraint or example: sku, sensorPartNumber, selectedVariantId.loose_string_param
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

create_checkout

46 / 100Cloudy

Purpose: 17 / 20
When to use: 5 / 20
Arguments: 10 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: checkout, checkout.line_items, checkout.line_items[].quantity, checkout.line_items[].item, checkout.line_items[].item.id, checkout.context.param_no_description
Minor
String arguments with no constraint or example: checkout.line_items[].item.id.loose_string_param

get_shopify_ucp_readiness

49 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

recommend_lenses_for_application

49 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 7 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Major
Arguments without a description: application, desiredHorizontalFovDeg, workingDistanceMm, mount, preferLowDistortion, requireInStock, maxResults.param_no_description
Minor
String arguments with no constraint or example: application, mount.loose_string_param
Minor
The meaning of the boolean argument preferLowDistortion is unclear.vague_boolean
Minor
The meaning of the boolean argument requireInStock is unclear.vague_boolean
Minor
Says nothing about what it returns.no_return_info

cancel_cart

50 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Major
Arguments without a description: meta, id.param_no_description
Minor
String arguments with no constraint or example: id.loose_string_param
Minor
Says nothing about what it returns.no_return_info
Minor
Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.id_source_missing

search_catalog

50 / 100Cloudy

Purpose: 17 / 20
When to use: 20 / 20
Arguments: 6 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: catalog, catalog.query, catalog.limit.param_no_description
Minor
String arguments with no constraint or example: catalog.query.loose_string_param
Minor
No `required` list, so every argument is optional.no_required
Minor
Says nothing about what it returns.no_return_info

compare_lenses

52 / 100Cloudy

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 10 / 25
Return value: 0 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Major
Arguments without a description: lensSkus, workingDistanceMm.param_no_description
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

get_shopify_readonly_config_status

52 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context
Minor
Says nothing about what it returns.no_return_info

read_shopify_products

54 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 14 / 25
Return value: 0 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

Minor
Arguments without a description: limit.param_no_description
Minor
No `required` list, so every argument is optional.no_required
Minor
The description mentions none of its 3 or more arguments.params_not_in_description
Minor
Says nothing about what it returns.no_return_info

lookup_catalog

56 / 100Cloudy

Purpose: 17 / 20
When to use: 15 / 20
Arguments: 10 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Major
Arguments without a description: meta, catalog, catalog.ids.param_no_description

get_catalog_snapshot_status

59 / 100Cloudy

Purpose: 17 / 20
When to use: 0 / 20
Arguments: 25 / 25
Return value: 7 / 15
Constraints and side effects: 10 / 10
Examples: 0 / 10

Major
Says nothing about when to use it, or when not to.no_usage_context

get_product_page_details

64 / 100Cloudy

Purpose: 20 / 20
When to use: 5 / 20
Arguments: 20 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

No issues.

search_lens_catalog

69 / 100Cloudy

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 10 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 5 / 10

Minor
Arguments without a description: limit.param_no_description
Minor
No `required` list, so every argument is optional.no_required

submit_rfq

70 / 100Clear

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 21 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 0 / 10

Minor
String arguments with no constraint or example: name, company, application.loose_string_param

get_sensor_specs

72 / 100Clear

Purpose: 20 / 20
When to use: 10 / 20
Arguments: 20 / 25
Return value: 7 / 15
Constraints and side effects: 10 / 10
Examples: 5 / 10

No issues.

match_lens_to_sensor

76 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 12 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as calculate_field_of_view's (similarity 0.61); only the names and schemas tell them apart. Say in this description when to use calculate_field_of_view instead.confusable_pair
Minor
Arguments without a description: desired_horizontal_fov_deg, desiredHorizontalFovDeg, working_distance_mm, workingDistanceMm, max_results, maxResults.param_no_description
Minor
No `required` list, so every argument is optional.no_required

get_lens_distortion_profile

81 / 100Clear

Purpose: 20 / 20
When to use: 20 / 20
Arguments: 17 / 25
Return value: 7 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
String arguments with no constraint or example: sku.loose_string_param
Minor
No `required` list, so every argument is optional.no_required

calculate_field_of_view

84 / 100Clear

Purpose: 20 / 20
When to use: 15 / 20
Arguments: 17 / 25
Return value: 15 / 15
Constraints and side effects: 7 / 10
Examples: 10 / 10

Minor
Its description is nearly the same as match_lens_to_sensor's (similarity 0.61); only the names and schemas tell them apart. Say in this description when to use match_lens_to_sensor instead.confusable_pair
Minor
No `required` list, so every argument is optional.no_required

What static scoring cannot tell

This score reads only the text of each description and schema: it says what is written, not what a model will do. Short tools whose names already say what they do, such as browser_close, score low here even when models use them well, and in our measurements current models chose the right tool in one step even from one-line descriptions, as long as the names and schemas differed. What the text cannot show, such as what happens over several steps and whether an added sentence helps or misleads, is what an evaluation measures, on the Pro and Team plans.

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