GAIP Listing Observer
Server Details
Behind Second Look (preview): a shop's product page as clean data, source checks, price history.
- Status
- Healthy
- Uptime
- 99.9% over 21 days
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- Repository
- tjcgraham-rgb/gaip-agents
- GitHub Stars
- 0
- Server Listing
- gaip-broker
TDQS
Scored across 1 tool
There is only one tool, so there is no risk of confusing it with another operation. Its purpose is clearly stated: observe product listing data from public URLs.
The single tool name `gaip_observe_listing` follows a predictable snake_case verb_noun pattern with a clear server prefix. With only one name, there are no competing conventions to create inconsistency.
The server is a narrowly focused listing observer, so one tool is largely appropriate. However, a single tool is slightly thin compared to the typical 3–15 tool range, even if the scope justifies it.
The tool supports both single and batch URL observation and returns core listing data including price, stock, GTIN, variants, shipping, returns, platform agreement, and history. For a read-only observer with explicit exclusions, no obvious operational gaps are apparent.
Available Tools
1 toolgaip_observe_listingDoes a shop listing agree across its sources? (preview)ARead-onlyIdempotentInspect
Use this before recommending or buying from an online shop. Pass a product page url (or up to 10 urls). Returns clean product data (price, stock, GTIN, variants, shipping, returns), whether page and platform agree, and GAIP's price and stock history. Preview. Not Amazon, eBay or Etsy. Free, read-only, no account; inputs must be public and non-personal.
| Name | Required | Description | Default |
|---|---|---|---|
| url | No | Public https link to one product page on a shop's own site (the example is a placeholder: replace it with a real product page). | |
| urls | No | Up to 10 product page links in one call (instead of url). | |
| max_age_minutes | No | Answer from GAIP's memory if observed within this many minutes (default 15; 0 reads the shop now). | |
| data_classification | No | PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data. | PUBLIC |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly/idempotent/openWorld, so the safety bar is lower. The description adds real context the annotations don't: it's a preview, free, requires no account, and crucially constrains inputs to public non-personal data. It does not discuss rate limits or how partial results are represented, keeping it at a 4.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Four tight sentences, front-loaded with the decision-relevant guidance, then inputs, then outputs, then scope limits. No filler and nothing buried.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema, the description enumerates the returned fields, which is exactly the compensating detail required. Combined with usage, exclusion, and privacy constraints, an agent has everything needed to call it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents url/urls/max_age_minutes/data_classification, including the 10-URL cap and max_age semantics. The description restates url/urls and the public/non-personal rule but adds no syntax or constraint detail beyond the schema, so baseline 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description names a specific action (cross-check a shop listing against its sources), the resource (product page URL), and the returned data (price, stock, GTIN, variants, shipping, returns, agreement, GAIP history). An agent can tell exactly what this tool does from the opening two sentences.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
It gives explicit when-to-use guidance ('before recommending or buying from an online shop') and a clear exclusion ('Not Amazon, eBay or Etsy'), which prevents misfires. No sibling tools exist, so a named alternative is not needed; this is strong but stops just short of full when/when-not coverage (e.g. what to do for the excluded platforms).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
1 tool update
- Changed
gaip_observe_listing2 fields changed- changed
Input schema / examplesPrevious value: -[ - { - "url": "https://shop.example.com/products/linen-shirt" - } -]New value: +[ + { + "url": "https://shop.example.com/products/replace-with-a-real-product-page" + } +] - changed
Input schema / properties / url / descriptionPrevious value: -"Public https link to one product page, e.g. https://shop.example/products/linen-shirt"New value: +"Public https link to one product page on a shop's own site (the example is a placeholder: replace it with a real product page)."
1 tool update
- Changed
gaip_observe_listing4 fields changed- added
Input schema / anyOfAdded value: +[ + { + "required": [ + "url" + ] + }, + { + "required": [ + "urls" + ] + } +] - added
Input schema / properties / max_age_minutesAdded value: +{ + "description": "Answer from GAIP's memory if observed within this many minutes (default 15; 0 reads the shop now).", + "maximum": 60, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / urlsAdded value: +{ + "description": "Up to 10 product page links in one call (instead of url).", + "items": { + "format": "uri", + "maxLength": 2000, + "type": "string" + }, + "maxItems": 10, + "type": "array" +} - removed
Input schema / requiredRemoved value: -[ - "url" -]
1 tool update
- First observed
gaip_observe_listing
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