Unified.to MCP Server

Create webhook

create_unified_webhook

Destructive

Create a webhook in the connected account. Returns the created webhook record. Requires the webhook fields in the request body. Creates a new record; to modify an existing webhook, use update_unified_webhook.

Input Schema

TableJSON Schema

Name	Required	Description
`meta`	No
`runs`	No	An array of the most revent virtual webhook runs
`event`	Yes
`db_url`	No
`fields`	No
`db_type`	No
`filters`	No
`is_beta`	No
`hook_url`	No	The URL of the webhook
`interval`	No	The interval (in minutes) to check for updated/new objets
`db_schema`	No
`is_paused`	No
`checked_at`	No	The last date/time that a check was done on this object (ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)
`is_healthy`	No
`environment`	No
`object_type`	Yes	The object to return (eg
`webhook_type`	No
`workspace_id`	No	(reference to KmsSpace)
`connection_id`	Yes
`db_name_prefix`	No
`page_max_limit`	No
`integration_type`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 10, 2026

changedInput schema / properties / object_type / enum

Previous value: -[
-  "accounting_account",
-  "accounting_transaction",
-  "accounting_journal",
-  "accounting_contact",
-  "accounting_invoice",
-  "accounting_bill",
-  "accounting_creditmemo",
-  "accounting_taxrate",
-  "accounting_organization",
-  "accounting_order",
-  "accounting_salesorder",
-  "accounting_purchaseorder",
-  "accounting_report",
-  "accounting_balancesheet",
-  "accounting_profitloss",
-  "accounting_trialbalance",
-  "accounting_category",
-  "accounting_expense",
-  "accounting_cashflow",
-  "payment_payment",
-  "payment_link",
-  "payment_payout",
-  "payment_refund",
-  "payment_subscription",
-  "commerce_item",
-  "commerce_collection",
-  "commerce_inventory",
-  "commerce_location",
-  "commerce_review",
-  "commerce_saleschannel",
-  "commerce_itemvariant",
-  "commerce_reservation",
-  "commerce_availability",
-  "verification_package",
-  "verification_request",
-  "assessment_package",
-  "assessment_order",
-  "ats_activity",
-  "ats_application",
-  "ats_applicationstatus",
-  "ats_candidate",
-  "ats_document",
-  "ats_interview",
-  "ats_job",
-  "ats_scorecard",
-  "ats_company",
-  "crm_company",
-  "crm_contact",
-  "crm_deal",
-  "crm_event",
-  "crm_lead",
-  "crm_pipeline",
-  "crm_picklist",
-  "hris_employee",
-  "hris_group",
-  "hris_payslip",
-  "hris_timeoff",
-  "hris_company",
-  "hris_location",
-  "hris_device",
-  "hris_timeshift",
-  "hris_deduction",
-  "hris_benefit",
-  "hris_bankaccount",
-  "martech_list",
-  "martech_member",
-  "martech_campaign",
-  "martech_report",
-  "passthrough",
-  "ticketing_note",
-  "ticketing_ticket",
-  "ticketing_customer",
-  "ticketing_category",
-  "uc_contact",
-  "uc_call",
-  "uc_comment",
-  "uc_recording",
-  "enrich_person",
-  "enrich_company",
-  "storage_file",
-  "genai_model",
-  "genai_prompt",
-  "genai_embedding",
-  "messaging_message",
-  "messaging_channel",
-  "messaging_event",
-  "kms_space",
-  "kms_page",
-  "kms_comment",
-  "task_project",
-  "task_task",
-  "task_comment",
-  "task_change",
-  "scim_users",
-  "scim_groups",
-  "lms_course",
-  "lms_class",
-  "lms_student",
-  "lms_instructor",
-  "lms_content",
-  "lms_collection",
-  "lms_activity",
-  "repo_organization",
-  "repo_repository",
-  "repo_branch",
-  "repo_commit",
-  "repo_pullrequest",
-  "metadata_metadata",
-  "calendar_calendar",
-  "calendar_event",
-  "calendar_busy",
-  "calendar_link",
-  "calendar_recording",
-  "calendar_webinar",
-  "ads_organization",
-  "ads_ad",
-  "ads_campaign",
-  "ads_report",
-  "ads_group",
-  "ads_creative",
-  "ads_insertionorder",
-  "ads_target",
-  "ads_promoted",
-  "analytics_property",
-  "analytics_event",
-  "analytics_session",
-  "analytics_visitor",
-  "analytics_report",
-  "forms_form",
-  "forms_submission",
-  "shipping_carrier",
-  "shipping_rate",
-  "shipping_shipment",
-  "shipping_label",
-  "shipping_tracking",
-  "signing_document",
-  "signing_signatory",
-  "signing_template",
-  "clubs_group",
-  "clubs_member",
-  "clubs_activity",
-  "clubs_location",
-  "clubs_event",
-  "datastore_database",
-  "datastore_table",
-  "datastore_record",
-  "datastore_query"
-]New value: +[
+  "accounting_account",
+  "accounting_transaction",
+  "accounting_journal",
+  "accounting_contact",
+  "accounting_invoice",
+  "accounting_bill",
+  "accounting_vendorcredit",
+  "accounting_creditmemo",
+  "accounting_taxrate",
+  "accounting_organization",
+  "accounting_order",
+  "accounting_salesorder",
+  "accounting_purchaseorder",
+  "accounting_report",
+  "accounting_balancesheet",
+  "accounting_profitloss",
+  "accounting_trialbalance",
+  "accounting_category",
+  "accounting_expense",
+  "accounting_cashflow",
+  "payment_payment",
+  "payment_link",
+  "payment_payout",
+  "payment_refund",
+  "payment_subscription",
+  "commerce_item",
+  "commerce_collection",
+  "commerce_inventory",
+  "commerce_location",
+  "commerce_review",
+  "commerce_saleschannel",
+  "commerce_itemvariant",
+  "commerce_reservation",
+  "commerce_availability",
+  "verification_package",
+  "verification_request",
+  "assessment_package",
+  "assessment_order",
+  "ats_activity",
+  "ats_application",
+  "ats_applicationstatus",
+  "ats_candidate",
+  "ats_document",
+  "ats_interview",
+  "ats_job",
+  "ats_scorecard",
+  "ats_company",
+  "crm_company",
+  "crm_contact",
+  "crm_deal",
+  "crm_event",
+  "crm_lead",
+  "crm_pipeline",
+  "crm_picklist",
+  "hris_employee",
+  "hris_group",
+  "hris_payslip",
+  "hris_timeoff",
+  "hris_company",
+  "hris_location",
+  "hris_device",
+  "hris_timeshift",
+  "hris_deduction",
+  "hris_benefit",
+  "hris_bankaccount",
+  "hris_document",
+  "hris_taxonomy",
+  "martech_list",
+  "martech_member",
+  "martech_campaign",
+  "martech_report",
+  "passthrough",
+  "ticketing_note",
+  "ticketing_ticket",
+  "ticketing_customer",
+  "ticketing_category",
+  "uc_contact",
+  "uc_call",
+  "uc_comment",
+  "uc_recording",
+  "enrich_person",
+  "enrich_company",
+  "storage_file",
+  "genai_model",
+  "genai_prompt",
+  "genai_embedding",
+  "messaging_message",
+  "messaging_channel",
+  "messaging_event",
+  "kms_space",
+  "kms_page",
+  "kms_comment",
+  "task_project",
+  "task_task",
+  "task_comment",
+  "task_change",
+  "scim_users",
+  "scim_groups",
+  "lms_course",
+  "lms_class",
+  "lms_student",
+  "lms_instructor",
+  "lms_content",
+  "lms_collection",
+  "lms_activity",
+  "repo_organization",
+  "repo_repository",
+  "repo_branch",
+  "repo_commit",
+  "repo_pullrequest",
+  "metadata_metadata",
+  "calendar_calendar",
+  "calendar_event",
+  "calendar_busy",
+  "calendar_link",
+  "calendar_recording",
+  "calendar_webinar",
+  "ads_organization",
+  "ads_ad",
+  "ads_campaign",
+  "ads_report",
+  "ads_group",
+  "ads_creative",
+  "ads_insertionorder",
+  "ads_target",
+  "ads_promoted",
+  "analytics_property",
+  "analytics_event",
+  "analytics_session",
+  "analytics_visitor",
+  "analytics_report",
+  "forms_form",
+  "forms_submission",
+  "shipping_carrier",
+  "shipping_rate",
+  "shipping_shipment",
+  "shipping_label",
+  "shipping_tracking",
+  "signing_document",
+  "signing_signatory",
+  "signing_template",
+  "clubs_group",
+  "clubs_member",
+  "clubs_activity",
+  "clubs_location",
+  "clubs_event",
+  "datastore_database",
+  "datastore_table",
+  "datastore_record",
+  "datastore_query",
+  "cdp_profile",
+  "cdp_segment",
+  "cdp_event",
+  "cdp_source",
+  "cdp_destination",
+  "cdp_activation"
+]

Changed3 schema fields changedJul 16, 2026

changedInput schema / properties / db_type / enum

Previous value: -[
-  "mongodb",
-  "mysql",
-  "postgres",
-  "mssql",
-  "mariadb",
-  "supabase"
-]New value: +[
+  "mongodb",
+  "mysql",
+  "postgres",
+  "mssql",
+  "mariadb",
+  "supabase",
+  "snowflake"
+]

addedInput schema / properties / is_beta
```
Added value: +{
+  "type": "boolean"
+}
```

changedInput schema / properties / object_type / enum

Previous value: -[
-  "accounting_account",
-  "accounting_transaction",
-  "accounting_journal",
-  "accounting_contact",
-  "accounting_invoice",
-  "accounting_bill",
-  "accounting_creditmemo",
-  "accounting_taxrate",
-  "accounting_organization",
-  "accounting_order",
-  "accounting_salesorder",
-  "accounting_purchaseorder",
-  "accounting_report",
-  "accounting_balancesheet",
-  "accounting_profitloss",
-  "accounting_trialbalance",
-  "accounting_category",
-  "accounting_expense",
-  "accounting_cashflow",
-  "payment_payment",
-  "payment_link",
-  "payment_payout",
-  "payment_refund",
-  "payment_subscription",
-  "commerce_item",
-  "commerce_collection",
-  "commerce_inventory",
-  "commerce_location",
-  "commerce_review",
-  "commerce_saleschannel",
-  "commerce_itemvariant",
-  "verification_package",
-  "verification_request",
-  "assessment_package",
-  "assessment_order",
-  "ats_activity",
-  "ats_application",
-  "ats_applicationstatus",
-  "ats_candidate",
-  "ats_document",
-  "ats_interview",
-  "ats_job",
-  "ats_scorecard",
-  "ats_company",
-  "crm_company",
-  "crm_contact",
-  "crm_deal",
-  "crm_event",
-  "crm_lead",
-  "crm_pipeline",
-  "hris_employee",
-  "hris_group",
-  "hris_payslip",
-  "hris_timeoff",
-  "hris_company",
-  "hris_location",
-  "hris_device",
-  "hris_timeshift",
-  "hris_deduction",
-  "hris_benefit",
-  "hris_bankaccount",
-  "martech_list",
-  "martech_member",
-  "martech_campaign",
-  "martech_report",
-  "passthrough",
-  "ticketing_note",
-  "ticketing_ticket",
-  "ticketing_customer",
-  "ticketing_category",
-  "uc_contact",
-  "uc_call",
-  "uc_comment",
-  "uc_recording",
-  "enrich_person",
-  "enrich_company",
-  "storage_file",
-  "genai_model",
-  "genai_prompt",
-  "genai_embedding",
-  "messaging_message",
-  "messaging_channel",
-  "messaging_event",
-  "kms_space",
-  "kms_page",
-  "kms_comment",
-  "task_project",
-  "task_task",
-  "task_comment",
-  "task_change",
-  "scim_users",
-  "scim_groups",
-  "lms_course",
-  "lms_class",
-  "lms_student",
-  "lms_instructor",
-  "lms_content",
-  "lms_collection",
-  "lms_activity",
-  "repo_organization",
-  "repo_repository",
-  "repo_branch",
-  "repo_commit",
-  "repo_pullrequest",
-  "metadata_metadata",
-  "calendar_calendar",
-  "calendar_event",
-  "calendar_busy",
-  "calendar_link",
-  "calendar_recording",
-  "calendar_webinar",
-  "ads_organization",
-  "ads_ad",
-  "ads_campaign",
-  "ads_report",
-  "ads_group",
-  "ads_creative",
-  "ads_insertionorder",
-  "forms_form",
-  "forms_submission",
-  "shipping_carrier",
-  "shipping_rate",
-  "shipping_shipment",
-  "shipping_label",
-  "shipping_tracking"
-]New value: +[
+  "accounting_account",
+  "accounting_transaction",
+  "accounting_journal",
+  "accounting_contact",
+  "accounting_invoice",
+  "accounting_bill",
+  "accounting_creditmemo",
+  "accounting_taxrate",
+  "accounting_organization",
+  "accounting_order",
+  "accounting_salesorder",
+  "accounting_purchaseorder",
+  "accounting_report",
+  "accounting_balancesheet",
+  "accounting_profitloss",
+  "accounting_trialbalance",
+  "accounting_category",
+  "accounting_expense",
+  "accounting_cashflow",
+  "payment_payment",
+  "payment_link",
+  "payment_payout",
+  "payment_refund",
+  "payment_subscription",
+  "commerce_item",
+  "commerce_collection",
+  "commerce_inventory",
+  "commerce_location",
+  "commerce_review",
+  "commerce_saleschannel",
+  "commerce_itemvariant",
+  "commerce_reservation",
+  "commerce_availability",
+  "verification_package",
+  "verification_request",
+  "assessment_package",
+  "assessment_order",
+  "ats_activity",
+  "ats_application",
+  "ats_applicationstatus",
+  "ats_candidate",
+  "ats_document",
+  "ats_interview",
+  "ats_job",
+  "ats_scorecard",
+  "ats_company",
+  "crm_company",
+  "crm_contact",
+  "crm_deal",
+  "crm_event",
+  "crm_lead",
+  "crm_pipeline",
+  "crm_picklist",
+  "hris_employee",
+  "hris_group",
+  "hris_payslip",
+  "hris_timeoff",
+  "hris_company",
+  "hris_location",
+  "hris_device",
+  "hris_timeshift",
+  "hris_deduction",
+  "hris_benefit",
+  "hris_bankaccount",
+  "martech_list",
+  "martech_member",
+  "martech_campaign",
+  "martech_report",
+  "passthrough",
+  "ticketing_note",
+  "ticketing_ticket",
+  "ticketing_customer",
+  "ticketing_category",
+  "uc_contact",
+  "uc_call",
+  "uc_comment",
+  "uc_recording",
+  "enrich_person",
+  "enrich_company",
+  "storage_file",
+  "genai_model",
+  "genai_prompt",
+  "genai_embedding",
+  "messaging_message",
+  "messaging_channel",
+  "messaging_event",
+  "kms_space",
+  "kms_page",
+  "kms_comment",
+  "task_project",
+  "task_task",
+  "task_comment",
+  "task_change",
+  "scim_users",
+  "scim_groups",
+  "lms_course",
+  "lms_class",
+  "lms_student",
+  "lms_instructor",
+  "lms_content",
+  "lms_collection",
+  "lms_activity",
+  "repo_organization",
+  "repo_repository",
+  "repo_branch",
+  "repo_commit",
+  "repo_pullrequest",
+  "metadata_metadata",
+  "calendar_calendar",
+  "calendar_event",
+  "calendar_busy",
+  "calendar_link",
+  "calendar_recording",
+  "calendar_webinar",
+  "ads_organization",
+  "ads_ad",
+  "ads_campaign",
+  "ads_report",
+  "ads_group",
+  "ads_creative",
+  "ads_insertionorder",
+  "ads_target",
+  "ads_promoted",
+  "analytics_property",
+  "analytics_event",
+  "analytics_session",
+  "analytics_visitor",
+  "analytics_report",
+  "forms_form",
+  "forms_submission",
+  "shipping_carrier",
+  "shipping_rate",
+  "shipping_shipment",
+  "shipping_label",
+  "shipping_tracking",
+  "signing_document",
+  "signing_signatory",
+  "signing_template",
+  "clubs_group",
+  "clubs_member",
+  "clubs_activity",
+  "clubs_location",
+  "clubs_event",
+  "datastore_database",
+  "datastore_table",
+  "datastore_record",
+  "datastore_query"
+]

Changed4 schema fields changedMay 7, 2026

changedInput schema / properties / checked_at / description

Previous value: -"The last date/time that a check was done on this object"New value: +"The last date/time that a check was done on this object (ISO-8601 / YYYY-MM-DDTHH:MM:SSZ format)"

changedInput schema / properties / db_type / enum

Previous value: -[
-  "mongodb",
-  "mysql",
-  "postgres",
-  "mssql",
-  "mariadb"
-]New value: +[
+  "mongodb",
+  "mysql",
+  "postgres",
+  "mssql",
+  "mariadb",
+  "supabase"
+]

changedInput schema / properties / object_type / enum

Previous value: -[
-  "accounting_account",
-  "accounting_transaction",
-  "accounting_journal",
-  "accounting_contact",
-  "accounting_invoice",
-  "accounting_bill",
-  "accounting_creditmemo",
-  "accounting_taxrate",
-  "accounting_organization",
-  "accounting_order",
-  "accounting_salesorder",
-  "accounting_purchaseorder",
-  "accounting_report",
-  "accounting_balancesheet",
-  "accounting_profitloss",
-  "accounting_trialbalance",
-  "accounting_category",
-  "accounting_expense",
-  "payment_payment",
-  "payment_link",
-  "payment_payout",
-  "payment_refund",
-  "payment_subscription",
-  "commerce_item",
-  "commerce_collection",
-  "commerce_inventory",
-  "commerce_location",
-  "commerce_review",
-  "verification_package",
-  "verification_request",
-  "ats_activity",
-  "ats_application",
-  "ats_applicationstatus",
-  "ats_candidate",
-  "ats_document",
-  "ats_interview",
-  "ats_job",
-  "ats_scorecard",
-  "ats_company",
-  "crm_company",
-  "crm_contact",
-  "crm_deal",
-  "crm_event",
-  "crm_lead",
-  "crm_pipeline",
-  "hris_employee",
-  "hris_group",
-  "hris_payslip",
-  "hris_timeoff",
-  "hris_company",
-  "hris_location",
-  "hris_device",
-  "hris_timeshift",
-  "martech_list",
-  "martech_member",
-  "passthrough",
-  "ticketing_note",
-  "ticketing_ticket",
-  "ticketing_customer",
-  "ticketing_category",
-  "uc_contact",
-  "uc_call",
-  "uc_comment",
-  "uc_recording",
-  "enrich_person",
-  "enrich_company",
-  "storage_file",
-  "genai_model",
-  "genai_prompt",
-  "genai_embedding",
-  "messaging_message",
-  "messaging_channel",
-  "kms_space",
-  "kms_page",
-  "kms_comment",
-  "task_project",
-  "task_task",
-  "task_comment",
-  "task_change",
-  "scim_users",
-  "scim_groups",
-  "lms_course",
-  "lms_class",
-  "lms_student",
-  "lms_instructor",
-  "repo_organization",
-  "repo_repository",
-  "repo_branch",
-  "repo_commit",
-  "repo_pullrequest",
-  "metadata_metadata",
-  "calendar_calendar",
-  "calendar_event",
-  "calendar_busy",
-  "calendar_link",
-  "calendar_recording"
-]New value: +[
+  "accounting_account",
+  "accounting_transaction",
+  "accounting_journal",
+  "accounting_contact",
+  "accounting_invoice",
+  "accounting_bill",
+  "accounting_creditmemo",
+  "accounting_taxrate",
+  "accounting_organization",
+  "accounting_order",
+  "accounting_salesorder",
+  "accounting_purchaseorder",
+  "accounting_report",
+  "accounting_balancesheet",
+  "accounting_profitloss",
+  "accounting_trialbalance",
+  "accounting_category",
+  "accounting_expense",
+  "accounting_cashflow",
+  "payment_payment",
+  "payment_link",
+  "payment_payout",
+  "payment_refund",
+  "payment_subscription",
+  "commerce_item",
+  "commerce_collection",
+  "commerce_inventory",
+  "commerce_location",
+  "commerce_review",
+  "commerce_saleschannel",
+  "commerce_itemvariant",
+  "verification_package",
+  "verification_request",
+  "assessment_package",
+  "assessment_order",
+  "ats_activity",
+  "ats_application",
+  "ats_applicationstatus",
+  "ats_candidate",
+  "ats_document",
+  "ats_interview",
+  "ats_job",
+  "ats_scorecard",
+  "ats_company",
+  "crm_company",
+  "crm_contact",
+  "crm_deal",
+  "crm_event",
+  "crm_lead",
+  "crm_pipeline",
+  "hris_employee",
+  "hris_group",
+  "hris_payslip",
+  "hris_timeoff",
+  "hris_company",
+  "hris_location",
+  "hris_device",
+  "hris_timeshift",
+  "hris_deduction",
+  "hris_benefit",
+  "hris_bankaccount",
+  "martech_list",
+  "martech_member",
+  "martech_campaign",
+  "martech_report",
+  "passthrough",
+  "ticketing_note",
+  "ticketing_ticket",
+  "ticketing_customer",
+  "ticketing_category",
+  "uc_contact",
+  "uc_call",
+  "uc_comment",
+  "uc_recording",
+  "enrich_person",
+  "enrich_company",
+  "storage_file",
+  "genai_model",
+  "genai_prompt",
+  "genai_embedding",
+  "messaging_message",
+  "messaging_channel",
+  "messaging_event",
+  "kms_space",
+  "kms_page",
+  "kms_comment",
+  "task_project",
+  "task_task",
+  "task_comment",
+  "task_change",
+  "scim_users",
+  "scim_groups",
+  "lms_course",
+  "lms_class",
+  "lms_student",
+  "lms_instructor",
+  "lms_content",
+  "lms_collection",
+  "lms_activity",
+  "repo_organization",
+  "repo_repository",
+  "repo_branch",
+  "repo_commit",
+  "repo_pullrequest",
+  "metadata_metadata",
+  "calendar_calendar",
+  "calendar_event",
+  "calendar_busy",
+  "calendar_link",
+  "calendar_recording",
+  "calendar_webinar",
+  "ads_organization",
+  "ads_ad",
+  "ads_campaign",
+  "ads_report",
+  "ads_group",
+  "ads_creative",
+  "ads_insertionorder",
+  "forms_form",
+  "forms_submission",
+  "shipping_carrier",
+  "shipping_rate",
+  "shipping_shipment",
+  "shipping_label",
+  "shipping_tracking"
+]

addedInput schema / properties / workspace_id / description
```
Added value: +"(reference to KmsSpace)"
```

First observedFeb 19, 2026

TDQS

B3.3/5.0

Behavior3/5

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

Annotations already indicate destructiveHint=true, so the description doesn't need to repeat that. It adds the fact that it 'Returns the created webhook record' and mentions the requirement for 'webhook fields in the request body,' which provides some behavioral context. However, it does not disclose details like idempotency (though annotations say idempotentHint=false) or potential side effects such as triggering events, rate limits, or confirmation requirements, which would be valuable.

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?

The description is concise—three sentences—and front-loads the core action and return value. It efficiently uses the third sentence to point to the sibling tool for updates. However, it could be more structured by explicitly listing required parameters or adding a brief 'When to use' section, but overall it is appropriately sized.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (22 parameters, 3 required, 27% schema coverage, no output schema, nested objects) and the absence of a rich schema, the description is inadequate. It fails to explain which 'webhook fields' are required, what the different webhook types (virtual vs native) mean, how 'event' interacts with 'object_type,' or what the return record contains beyond being a webhook. An agent would struggle to construct a valid request without opening the schema and even then, many parameters remain unclear.

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

Parameters2/5

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

Schema description coverage is only 27%, meaning most parameters are undocumented in the schema. The description provides almost no parameter guidance beyond saying 'webhook fields' are required, but it fails to specify which fields (beyond the schema's required list) or explain the meaning of key parameters like 'event,' 'object_type,' 'hook_url,' 'webhook_type,' or 'filters.' The description should compensate for the low schema coverage but does not.

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 clearly states the action ('Create a webhook'), the resource ('in the connected account'), and notes that it returns the created record. It also distinguishes itself from update_unified_webhook by saying 'Creates a new record; to modify an existing webhook, use update_unified_webhook.' This is clear, though it could be more specific about the required fields beyond 'webhook fields.'

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?

The description explicitly states when to use this tool (to create a new webhook) and provides an alternative (update_unified_webhook) for modification, which serves as a when-not. However, it does not mention other related tools like list_unified_webhooks for existing webhooks or the trigger update tool, which could be relevant context.

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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