Decide Policy Notaries

Check cancellation penalty

cancellation_penalty

Read-onlyIdempotent

Check US subscription cancellation terms without executing cancellation. Known vendors include review-only and retired scopes: their presence is not automation support. Adobe requires manual contract review. Typeform requires Basic, direct/self-serve platform scope and returns CANCEL_AT_PERIOD_END, not an immediate cancellation or refund. Missing scope, retired sources or unavailable current evidence return UNKNOWN.

Input Schema

TableJSON Schema

Name	Required	Description
`plan`	Yes	Use 'basic' for Typeform; 'individual' for other supported vendors.
`region`	Yes	Region code. Currently only 'US' is supported.
`vendor`	Yes	Vendor identifier (lowercase, underscore-separated).
`product`	No	Required for Typeform. Excludes payments collected from form respondents.
`contract_type`	No	Required for Typeform. Custom and enterprise contracts are not covered.
`billing_cadence`	No	Required when the vendor applies different cancellation terms to monthly and annual plans.
`purchase_channel`	No	Required for Typeform. Third-party purchases are not covered.
`requested_action`	No	Required for Typeform. Checks ending renewal at the paid term end; does not execute it.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`code`	Yes
`policy`	No
`refund`	No
`vendor`	No
`message`	Yes
`penalty`	No
`verdict`	Yes
`notice_days`	No
`source_hash`	No
`evaluated_at`	No
`rules_version`	No
`policy_version`	No
`automation_safe`	No
`billing_cadence`	No
`policy_evidence`	No
`rulebook_result`	No
`required_context`	No
`policy_source_url`	No
`execution_performed`	No
`policy_last_checked`	No
`policy_source_notes`	No
`cancellation_confirmed`	No
`cancellation_effective`	No
`policy_last_verified_utc`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 6, 2026
- changedOutput schema / properties / policy_last_verified_utc / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```

Changed12 schema fields changedSep 6, 2026

addedInput schema / properties / contract_type

Added value: +{
+  "description": "Required for Typeform. Custom and enterprise contracts are not covered.",
+  "enum": [
+    "self_serve"
+  ],
+  "type": "string"
+}

changedInput schema / properties / plan / description

Previous value: -"Plan type. Currently only 'individual' plans are supported."New value: +"Use 'basic' for Typeform; 'individual' for other supported vendors."

changedInput schema / properties / plan / enum

Previous value: -[
-  "individual"
-]New value: +[
+  "individual",
+  "basic"
+]

addedInput schema / properties / product

Added value: +{
+  "description": "Required for Typeform. Excludes payments collected from form respondents.",
+  "enum": [
+    "platform_subscription"
+  ],
+  "type": "string"
+}

addedInput schema / properties / purchase_channel

Added value: +{
+  "description": "Required for Typeform. Third-party purchases are not covered.",
+  "enum": [
+    "direct"
+  ],
+  "type": "string"
+}

addedInput schema / properties / requested_action

Added value: +{
+  "description": "Required for Typeform. Checks ending renewal at the paid term end; does not execute it.",
+  "enum": [
+    "cancel_at_period_end"
+  ],
+  "type": "string"
+}

changedInput schema / properties / vendor / enum

Previous value: -[
-  "1password",
-  "adobe",
-  "amazon_music_unlimited",
-  "amazon_prime",
-  "amc_plus",
-  "apple_app_store",
-  "apple_arcade",
-  "apple_music",
-  "apple_tv_plus",
-  "audible",
-  "bitwarden",
-  "britbox",
-  "bumble",
-  "calm",
-  "canva",
-  "chatgpt_plus",
-  "claude_pro",
-  "coursera_plus",
-  "crunchyroll",
-  "dashlane",
-  "deezer",
-  "discord_nitro",
-  "discovery_plus",
-  "disney_plus",
-  "doordash_dashpass",
-  "dropbox_us",
-  "duolingo",
-  "ea_play",
-  "espn_plus",
-  "evernote",
-  "expressvpn",
-  "figma",
-  "fitbit_premium",
-  "fubo_tv",
-  "github_pro",
-  "google_one",
-  "google_play",
-  "grammarly",
-  "headspace",
-  "hellofresh",
-  "hinge",
-  "hulu",
-  "icloud_plus",
-  "instacart_plus",
-  "keeper",
-  "kindle_unlimited",
-  "lastpass",
-  "linkedin_premium",
-  "masterclass",
-  "max",
-  "microsoft_365",
-  "midjourney",
-  "mlb_tv",
-  "myfitnesspal_premium",
-  "netflix",
-  "new_york_times",
-  "nfl_plus",
-  "nintendo_switch_online",
-  "noom",
-  "nordvpn",
-  "notion",
-  "paramount_plus",
-  "patreon",
-  "peacock",
-  "peloton",
-  "playstation_plus",
-  "proton",
-  "reddit_premium",
-  "ring_protect",
-  "roblox_premium",
-  "scribd",
-  "shutterstock",
-  "siriusxm",
-  "slack",
-  "sling_tv",
-  "snapchat_plus",
-  "soundcloud_go",
-  "spotify",
-  "squarespace",
-  "starz",
-  "strava",
-  "substack",
-  "surfshark",
-  "telegram_premium",
-  "tidal",
-  "tinder",
-  "todoist",
-  "twitch",
-  "uber_one",
-  "ubisoft_plus",
-  "wall_street_journal",
-  "walmart_plus",
-  "washington_post",
-  "weightwatchers",
-  "wix",
-  "x_premium",
-  "xbox_game_pass",
-  "youtube_premium",
-  "youtube_tv",
-  "zoom"
-]New value: +[
+  "1password",
+  "adobe",
+  "amazon_music_unlimited",
+  "amazon_prime",
+  "amc_plus",
+  "apple_app_store",
+  "apple_arcade",
+  "apple_music",
+  "apple_tv_plus",
+  "audible",
+  "bitwarden",
+  "britbox",
+  "bumble",
+  "calm",
+  "canva",
+  "chatgpt_plus",
+  "claude_pro",
+  "coursera_plus",
+  "crunchyroll",
+  "dashlane",
+  "deezer",
+  "discord_nitro",
+  "discovery_plus",
+  "disney_plus",
+  "doordash_dashpass",
+  "dropbox_us",
+  "duolingo",
+  "ea_play",
+  "espn_plus",
+  "evernote",
+  "expressvpn",
+  "figma",
+  "fitbit_premium",
+  "fubo_tv",
+  "github_pro",
+  "google_one",
+  "google_play",
+  "grammarly",
+  "headspace",
+  "hellofresh",
+  "hinge",
+  "hulu",
+  "icloud_plus",
+  "instacart_plus",
+  "keeper",
+  "kindle_unlimited",
+  "lastpass",
+  "linkedin_premium",
+  "masterclass",
+  "max",
+  "microsoft_365",
+  "midjourney",
+  "mlb_tv",
+  "myfitnesspal_premium",
+  "netflix",
+  "new_york_times",
+  "nfl_plus",
+  "nintendo_switch_online",
+  "noom",
+  "nordvpn",
+  "notion",
+  "paramount_plus",
+  "patreon",
+  "peacock",
+  "peloton",
+  "playstation_plus",
+  "proton",
+  "reddit_premium",
+  "ring_protect",
+  "roblox_premium",
+  "scribd",
+  "shutterstock",
+  "siriusxm",
+  "slack",
+  "sling_tv",
+  "snapchat_plus",
+  "soundcloud_go",
+  "spotify",
+  "squarespace",
+  "starz",
+  "strava",
+  "substack",
+  "surfshark",
+  "telegram_premium",
+  "tidal",
+  "tinder",
+  "todoist",
+  "twitch",
+  "typeform",
+  "uber_one",
+  "ubisoft_plus",
+  "wall_street_journal",
+  "walmart_plus",
+  "washington_post",
+  "weightwatchers",
+  "wix",
+  "x_premium",
+  "xbox_game_pass",
+  "youtube_premium",
+  "youtube_tv",
+  "zoom"
+]

addedOutput schema / properties / cancellation_confirmed

Added value: +{
+  "const": false,
+  "type": "boolean"
+}

addedOutput schema / properties / cancellation_effective

Added value: +{
+  "enum": [
+    "paid_term_end"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / execution_performed

Added value: +{
+  "const": false,
+  "type": "boolean"
+}

addedOutput schema / properties / refund

Added value: +{
+  "enum": [
+    "not_evaluated"
+  ],
+  "type": "string"
+}

changedOutput schema / properties / verdict / enum

Previous value: -[
-  "FREE_CANCEL",
-  "PENALTY",
-  "LOCKED",
-  "UNKNOWN"
-]New value: +[
+  "FREE_CANCEL",
+  "CANCEL_AT_PERIOD_END",
+  "PENALTY",
+  "LOCKED",
+  "UNKNOWN"
+]

Changed3 schema fields changedSep 6, 2026

addedOutput schema / properties / automation_safe
```
Added value: +{
+  "type": "boolean"
+}
```

changedOutput schema / properties / billing_cadence / type

Previous value: -"string"New value: +[
+  "string",
+  "null"
+]

addedOutput schema / properties / policy_evidence

Added value: +{
+  "additionalProperties": true,
+  "properties": {
+    "checked_at": {
+      "type": "string"
+    },
+    "current": {
+      "type": "boolean"
+    },
+    "evaluated_at": {
+      "type": "string"
+    },
+    "policy": {
+      "enum": [
+        "refund",
+        "cancel",
+        "return",
+        "trial"
+      ],
+      "type": "string"
+    },
+    "policy_version": {
+      "type": "string"
+    },
+    "reason": {
+      "type": "string"
+    },
+    "schema_version": {
+      "enum": [
+        "policy_evidence_v1"
+      ],
+      "type": "string"
+    },
+    "snapshot_generated_at": {
+      "type": "string"
+    },
+    "snapshot_hash": {
+      "type": "string"
+    },
+    "source_hash": {
+      "type": "string"
+    },
+    "source_url": {
+      "type": "string"
+    },
+    "status": {
+      "enum": [
+        "current",
+        "expired",
+        "unavailable",
+        "review_required"
+      ],
+      "type": "string"
+    },
+    "valid_until": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "vendor": {
+      "type": "string"
+    },
+    "verified_at": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "schema_version",
+    "policy",
+    "vendor",
+    "status",
+    "reason",
+    "current",
+    "evaluated_at"
+  ],
+  "type": "object"
+}

First observedJul 16, 2026

TDQS

A3.7/5.0

Behavior4/5

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

Annotations already establish readOnly/idempotent/non-destructive, and the description adds genuine behavioral context: it does not execute cancellation, Typeform returns CANCEL_AT_PERIOD_END rather than an immediate cancel or refund, and missing scope yields UNKNOWN. This goes meaningfully beyond the annotations.

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

Conciseness3/5

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

Purpose is front-loaded in the first sentence, which is good. The middle sentences are dense jargon ('review-only and retired scopes: their presence is not automation support') that is cryptic and may not earn its place without further explanation.

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?

With an output schema present, return-value detail is not required, and the description still communicates the key return semantics (UNKNOWN, CANCEL_AT_PERIOD_END). For an 8-parameter tool with full schema coverage, it is largely complete, though it leaves the 'review-only/retired scope' concept undefined.

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 coverage is 100%, so the baseline is 3, but the description adds value by tying parameters together in natural language ('Typeform requires Basic, direct/self-serve platform scope'), clarifying how the enum values must be combined rather than just listing them.

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?

States a specific verb and resource ('Check US subscription cancellation terms') and immediately bounds it with 'without executing cancellation'. It is clearly distinct in scope from siblings like refund_eligibility and trial_terms, though it never names those siblings to route the agent explicitly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It conveys usage limits well (Adobe is manual-only, Typeform needs specific scope, unavailable evidence returns UNKNOWN), which helps the agent interpret results. However, it gives no explicit when-to-use-this-vs-alternative guidance relative to the sibling tools.

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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