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Watch an agent or MCP server for changes

gaip_watch_register

Use this when asked to keep an eye on an agent or MCP server ("tell me if it changes or goes down"). Pass the continuity_handle from any GAIP result, kind and target_url. GAIP re-checks every 24 hours (3 free watches), receipts each change and can call your webhook. Free, no account; records a GAIP receipt only. Inputs must be public and non-personal.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
slaNoDELIVERY_SLA only: service-level terms checked on every observation, any of min_uptime_pct, max_latency_ms, required_fields (JSON key paths), freshness_field + max_age_seconds; optional uptime_window_hours, min_observations. Results go only to you.
kindYesAGENT_READINESS (agent URL), SUPPLIER_CARD (published card), DELIVERY_TERMS (terms_id) or DELIVERY_SLA (terms_id plus sla terms).
terms_idNoDELIVERY_TERMS or DELIVERY_SLA: terms_id from witness_register_terms.
target_urlNoPublic https URL (AGENT_READINESS, SUPPLIER_CARD). No query string.
webhook_urlNoOptional: your own public https endpoint for signed change events.
interval_hoursNoHours between checks: 24 minimum on the free tier; 1 for DELIVERY_SLA.
continuity_handleYesThe continuity_handle from an earlier GAIP result; proves you own these watches.
data_classificationNoPUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.PUBLIC

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / examples
      Previous value: -[
      -  {
      -    "continuity_handle": {
      -      "continuity_id": "<continuity_handle.continuity_id returned by any GAIP tool>",
      -      "token": "<continuity_handle.token returned by any GAIP tool>"
      -    },
      -    "interval_hours": 24,
      -    "kind": "SUPPLIER_CARD",
      -    "target_url": "https://weather.example.com/.well-known/agent-card.json",
      -    "webhook_url": "https://hooks.example.com/gaip-watch"
      -  }
      -]New value: +[
      +  {
      +    "continuity_handle": {
      +      "continuity_id": "<continuity_handle.continuity_id returned by any GAIP tool>",
      +      "token": "<continuity_handle.token returned by any GAIP tool>"
      +    },
      +    "interval_hours": 24,
      +    "kind": "AGENT_READINESS",
      +    "target_url": "https://weather.example.com/"
      +  }
      +]
  2. Changed6 schema fields changed
    • changedInput schema / properties / interval_hours / description
      Previous value: -"Optional: hours between checks (24 minimum on the free tier)."New value: +"Hours between checks: 24 minimum on the free tier; 1 for DELIVERY_SLA."
    • changedInput schema / properties / interval_hours / minimum
      Previous value: -24New value: +1
    • changedInput schema / properties / kind / description
      Previous value: -"AGENT_READINESS (agent URL), SUPPLIER_CARD (published card) or DELIVERY_TERMS (terms_id)."New value: +"AGENT_READINESS (agent URL), SUPPLIER_CARD (published card), DELIVERY_TERMS (terms_id) or DELIVERY_SLA (terms_id plus sla terms)."
    • changedInput schema / properties / kind / enum
      Previous value: -[
      -  "AGENT_READINESS",
      -  "DELIVERY_TERMS",
      -  "SUPPLIER_CARD"
      -]New value: +[
      +  "AGENT_READINESS",
      +  "DELIVERY_TERMS",
      +  "SUPPLIER_CARD",
      +  "DELIVERY_SLA"
      +]
    • addedInput schema / properties / sla
      Added value: +{
      +  "description": "DELIVERY_SLA only: service-level terms checked on every observation, any of min_uptime_pct, max_latency_ms, required_fields (JSON key paths), freshness_field + max_age_seconds; optional uptime_window_hours, min_observations. Results go only to you.",
      +  "type": "object"
      +}
    • changedInput schema / properties / terms_id / description
      Previous value: -"DELIVERY_TERMS: terms_id from witness_register_terms."New value: +"DELIVERY_TERMS or DELIVERY_SLA: terms_id from witness_register_terms."
  3. Changed3 schema fields changed
    • addedInput schema / properties / data_classification / description
      Added value: +"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data."
    • addedInput schema / properties / interval_hours / description
      Added value: +"Optional: hours between checks (24 minimum on the free tier)."
    • addedInput schema / properties / kind / description
      Added value: +"AGENT_READINESS (agent URL), SUPPLIER_CARD (published card) or DELIVERY_TERMS (terms_id)."
  4. Added

TDQS

A4.1/5.0
Behavior5/5

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

Despite annotations covering safety (readOnlyHint false, destructiveHint false, openWorldHint true), the description adds substantive behavior: 24-hour re-check cadence, a 3-watch free quota, per-change receipting, optional webhook callbacks, no-account/free cost model, and a public/non-personal data constraint. That is exactly the context annotations cannot convey.

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

Conciseness4/5

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

Front-loaded with the usage trigger, then constraints and cost, in three tight sentences. Slight redundancy in 'Free, no account; records a GAIP receipt only,' which restates cost twice, but nothing is wasted overall.

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?

For an 8-parameter, nested-object, no-output-schema tool, the description covers cadence, quota, side effects, and data policy well, and the schema carries the parameter detail. It never says what registration returns (no watch id/handle mentioned), which is the main gap for an agent needing to reference the watch later.

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

Parameters3/5

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

Schema description coverage is 100%, so the schema already explains kind, target_url, sla, interval_hours, webhook_url, and the nested continuity_handle. The description mostly echoes those names ('Pass the continuity_handle from any GAIP result, kind and target_url') with only the marginal addition of 'from any GAIP result'.

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

Purpose4/5

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

The description states a specific verb-and-resource combination ('keep an eye on an agent or MCP server') and pairs it with the trigger phrase users actually say ('tell me if it changes or goes down'). It implicitly distinguishes registration from the sibling gaip_watch_list / gaip_watch_remove / gaip_watch_events tools, but never names them, so an agent must infer the boundary.

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?

It gives an explicit when-to-use condition keyed to a user utterance, which is rare and helpful. However, it names no alternatives (e.g. one-shot checks vs. recurring watches) and states no exclusion criteria, so the agent must infer when a watch is the wrong tool.

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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