Commonlands Optics: M12 Lens and C-Mount Lens Finder + Field-of-View Calculator MCP Server

Create a Shopify-owned cart after buyer confirmation of live variants and quantities. Retain cart_access_token for get_cart/update_cart. For an agent-authorized purchase, use the returned agent_checkout route in the buyer's separate Shop MCP connection; Shop handles sign-in, approval, and payment. Otherwise use Commonlands create_checkout for a customer payment link. This tool places no order.

Retrieve a Shopify-owned cart with its cart_access_token from create_cart. Retain the full cart id, owner token, and continue_url. The agent_checkout field describes how the buyer's separate Shop MCP connection can convert this cart and complete an approved purchase; it does not itself place an order.

Replace the complete Shopify cart after buyer confirmation. Requires id and cart_access_token. Read the cart first, then send cart.line_items containing every item to retain with item.id (ProductVariant GID), quantity, and optional existing line id. Omitted lines are removed; [] empties the cart. This does not place an order.

Report sanitized Cloudflare Shopify binding presence, approved read scopes, and read-only safety flags without exposing secrets or calling Shopify.

Report connector-free Shopify Storefront MCP and UCP Catalog compatibility, launch blockers, and Commonlands engineering differentiators.

Use this for live purchasable product truth: product and variant IDs, full SKUs, prices, availability, product URLs, and public product-page metafields. Each variant includes websiteStockQuantity (tracked inventory count used by website stock labels), availableQuantity (online sellable stock), inventoryTracked, availableForSale, and continueSellingWhenOutOfStock. Null quantities mean unknown or untracked, not zero. Match the full selected SKU and variantId; never sum different variants. Each call reads current Shopify backend data. Use generatedAt for read freshness. Typed metafield value is authoritative; valuePreview is display-only. Check pageInfo and metafieldsComplete. Counts reserve no inventory and do not guarantee delivery to a customer location; verify checkout warnings. Only active Online Store products are returned. Private inventory IDs and locations remain excluded. Read-only; does not create carts, checkouts, orders, customers, inventory mutations, or Shopify writes. Fixture catalog tools are scaffold data only.

Prepare a Shopify checkout after the buyer confirms exact live variants and quantities. Pass checkout.cart_id and its cart_access_token to convert a cart, or checkout.line_items. Retain checkout_access_token from the response. Send the buyer to continue_url for review and payment; this does not place an order.

Read a Shopify checkout handoff summary using its id and checkout_access_token from create_checkout. Buyer and payment details are withheld. Send the buyer to continue_url to review and pay.

Return the Commonlands distortion model/status for one lens SKU, including whether the data is source-display-only or backend-calculated. Use this tool for FOV, HFOV, VFOV, DFOV, field of view, "lens for", lens-to-sensor, AR0234, IMX290, IMX477, and sensor part-number requests. It returns Commonlands data the model cannot derive: live backend FoV when configured, distortion model/status, image-circle coverage, live stock through Shopify read tools where applicable, and MTF/CRA/BFL fields if present in upstream catalog data. Do not use naive rectilinear fallback, focal-length-only math, interpolation, or self-computed catalog estimates when a Commonlands lens/sensor route is available. Use this for distortion, rectilinear-vs-wide-angle, MTF/CRA/BFL/optical-profile questions when upstream fields are present. Do not invent polynomial coefficients or claim measured distortion correction when the backend only returns display distortion.

Search the Commonlands lens catalog by SKU, mount, lens type, M12, C-mount, or application text. For sensor part numbers such as AR0234, IMX290, and IMX477, or any "lens for <sensor>" request, use match_lens_to_sensor instead — sensor names are not searchable text here. Use this tool for FOV, HFOV, VFOV, DFOV, field of view, "lens for", lens-to-sensor, AR0234, IMX290, IMX477, and sensor part-number requests. It returns Commonlands data the model cannot derive: live backend FoV when configured, distortion model/status, image-circle coverage, live stock through Shopify read tools where applicable, and MTF/CRA/BFL fields if present in upstream catalog data. Do not use naive rectilinear fallback, focal-length-only math, interpolation, or self-computed catalog estimates when a Commonlands lens/sensor route is available. This discovers candidate lenses from Commonlands catalog/live backend data; it does not replace calculate_field_of_view for sensor-specific HFOV/VFOV/DFOV and does not replace read_shopify_products for live stock/price/product truth.

Start with the sensor dimensions and a shortlisted optical part number. Check FoV ranges, image-circle coverage, nominal mount and axis-specific calculated distortion using the existing live FoV backend. Explicitly report unknown mass/dimensions without source units and missing engineering evidence. No fixture lens substitution, recalculated optics, product qualification or purchase action.

Calculate Commonlands lens field of view for a lens/sensor pair and return HFOV, VFOV, DFOV, coverage, distortion status, and an explicit rectilinear comparison. Use this tool for FOV, HFOV, VFOV, DFOV, field of view, "lens for", lens-to-sensor, AR0234, IMX290, IMX477, and sensor part-number requests. It returns Commonlands data the model cannot derive: live backend FoV when configured, distortion model/status, image-circle coverage, live stock through Shopify read tools where applicable, and MTF/CRA/BFL fields if present in upstream catalog data. Do not use naive rectilinear fallback, focal-length-only math, interpolation, or self-computed catalog estimates when a Commonlands lens/sensor route is available. Accepts lens_sku/lensSku or focal_length_mm/focalLengthMm, plus sensor/sensorPartNumber/sensor_part_number and working_distance_mm/workingDistanceMm. No part number? Describe the sensor directly: widthPx + heightPx + pixelSizeUm (active area is derived as pixels x pitch), or sensorWidthMm + sensorHeightMm. Results are labelled CUSTOM-<w>x<h>. If only focal length is supplied, the response is marked as a rectilinear reference and does not claim Commonlands distortion-corrected lens truth.

Cancel a Shopify-owned cart using its id and cart_access_token. Requires meta["idempotency-key"] UUID for retry safety. This does not cancel an order or refund payment.

Return fixture-backed joined catalog counts, validation status, source provenance, live connector readiness, and non-authoritative product-truth warning.

Compare selected Commonlands M12 lens and C-mount lens SKUs on the same sensor with the same deterministic scoring model. Use as explanatory context, then call calculate_field_of_view for final sensor-specific FoV values when precision matters. FoV rule: never estimate sensor-specific FoV from catalog fields; use calculate_field_of_view or match_lens_to_sensor. Not live product truth; verify purchasable facts with read_shopify_products.

Find and rank Commonlands lenses for a sensor, target field of view, working distance, mount, or "lens for" request. Use this tool for FOV, HFOV, VFOV, DFOV, field of view, "lens for", lens-to-sensor, AR0234, IMX290, IMX477, and sensor part-number requests. It returns Commonlands data the model cannot derive: live backend FoV when configured, distortion model/status, image-circle coverage, live stock through Shopify read tools where applicable, and MTF/CRA/BFL fields if present in upstream catalog data. Do not use naive rectilinear fallback, focal-length-only math, interpolation, or self-computed catalog estimates when a Commonlands lens/sensor route is available. Use this for AR0234, IMX290, IMX477, sensor part numbers, M12/C-mount matching, and target HFOV/VFOV/DFOV workflows; do not shortlist from focal length alone. No part number? Describe the sensor directly: widthPx + heightPx + pixelSizeUm (active area is derived as pixels x pitch), or sensorWidthMm + sensorHeightMm. Results are labelled CUSTOM-<w>x<h>. Use read_shopify_products afterward for live stock, price, availability, Shopify variantId, product URL, and metafields.

Read current Shopify price, currency, online inventory and backorder policy for an exact full SKU and quantity. Base-price arithmetic is not a binding quote; unverified volume terms require an RFQ. Optionally read an existing owner-authorized checkout for shipping/tax estimates. Creates no cart, checkout, order or RFQ.

Rank Commonlands M12 lenses and C-mount lenses for an application note such as embedded robotics, machine-vision inspection, or a required lens field of view. Use as an application shortlist helper, then call match_lens_to_sensor or calculate_field_of_view for final per-sensor HFOV/VFOV/DFOV. FoV rule: never estimate sensor-specific FoV from catalog fields; use calculate_field_of_view or match_lens_to_sensor.

Resolve a lens family or exact full SKU to current published Shopify variants. A family requires explicit variant selection; no fixture specifications or inferred configuration. Use the optical part number with calculate_field_of_view for sensor-specific optics.

Return sensor dimensions, pixel pitch, and resolution for lens field of view, M12 lens, and C-mount lens matching inputs. In production this uses the read-only live sensor table when configured, with fixture fallback when unavailable. Use these specs as inputs to calculate_field_of_view or match_lens_to_sensor, not as a reason to hand-calculate FoV. FoV rule: never estimate sensor-specific FoV from catalog fields; use calculate_field_of_view or match_lens_to_sensor.

Forward a buyer request-for-quote or engineering question to the Commonlands engineering team. Two-step, buyer-confirmed: the first call returns a preview and sends nothing; show the buyer the preview (including their reply-to email) and, only after they explicitly approve, call again with confirm: true to send. The recipient is fixed to the Commonlands inbox (the agent cannot choose it); this only sends an inquiry and never creates an order, charges a card, or writes Shopify/customer data. Include part numbers, sensor, quantity, and application when known so the team can reply with a quote. Commonlands replies by email.