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by io.github.duvoai
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Probe an MCP server for available tools

probeMcpServer

Probe an MCP server URL and list the tools it exposes. Useful as a dry-run before creating a connection — verifies the URL is reachable, that authentication headers (if any) are correct, and surfaces the tool catalog. Performs no writes; sits alongside /v2/teams/:team_id/connections/oauth/mcp/check (which probes the same URL for OAuth support).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
headersNoOptional HTTP headers for authentication (raw server_url mode only)
team_idNoDuvo team UUID to operate on. API keys are pinned to a single team — omit this (it falls back to the key's team) or pass that same team; a different team is rejected. OAuth callers, who can span multiple teams, should pass the target team here.
server_urlNoRaw MCP server URL to probe (for custom MCP servers)
integration_slugNoCatalog integration slug. The backend resolves the MCP server URL and dummy auth headers server-side — no server_url or headers needed.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / integration_slug / enum
      Previous value: -[
-  "googlecalendar",
-  "google-calendar",
-  "gmail",
-  "slack",
-  "googledocs",
-  "googlesheets",
-  "googledrive",
-  "firecrawl",
-  "exa",
-  "exa-search",
-  "exa-company-search",
-  "exa-people-search",
-  "deep-research",
-  "system",
-  "browser-agent",
-  "browser-agent-devtools",
-  "notion",
-  "linear",
-  "confluence",
-  "custom_mcp",
-  "user_mcp",
-  "snowflake",
-  "sharepoint",
-  "teams",
-  "onedrive",
-  "bigquery",
-  "databricks",
-  "netsuite",
-  "outlook",
-  "microsoft-calendar",
-  "excel",
-  "word",
-  "saps4hana",
-  "md365",
-  "businesscentral",
-  "oraclefusion",
-  "workday",
-  "coupa",
-  "signavio",
-  "sap-ecc",
-  "msteams",
-  "human-in-the-loop",
-  "email-attachments-reader",
-  "document-processor",
-  "google-docs",
-  "google-sheets",
-  "google-drive",
-  "outbound-call",
-  "case-queue-producer",
-  "case-queue-consumer",
-  "handover",
-  "shopify",
-  "hubspot",
-  "zendesk",
-  "intercom",
-  "powerbi",
-  "salesforce",
-  "pipedrive",
-  "tableau",
-  "image-generation",
-  "forecasting",
-  "supabase",
-  "attio",
-  "amplitude",
-  "websets",
-  "firecrawl-platform",
-  "duvo-computer-use",
-  "duvo-computer-use-rdp",
-  "eu-commodity-prices",
-  "asana",
-  "jira",
-  "ssh",
-  "scheduling",
-  "github",
-  "linear-native",
-  "notion-native",
-  "granola",
-  "apify",
-  "bamboohr",
-  "edi",
-  "maersk",
-  "infor-nexus",
-  "dhl",
-  "fedex",
-  "ups",
-  "dsv",
-  "trinity-logistics",
-  "ontrac",
-  "dachser",
-  "hellmann",
-  "omni-logistics",
-  "ceva-logistics",
-  "dpd",
-  "canada-post"
-]New value: +[
+  "googlecalendar",
+  "google-calendar",
+  "gmail",
+  "slack",
+  "googledocs",
+  "googlesheets",
+  "googledrive",
+  "firecrawl",
+  "exa",
+  "exa-search",
+  "exa-company-search",
+  "exa-people-search",
+  "deep-research",
+  "system",
+  "browser-agent",
+  "browser-agent-devtools",
+  "notion",
+  "linear",
+  "confluence",
+  "custom_mcp",
+  "user_mcp",
+  "snowflake",
+  "sharepoint",
+  "teams",
+  "onedrive",
+  "bigquery",
+  "databricks",
+  "netsuite",
+  "outlook",
+  "microsoft-calendar",
+  "excel",
+  "word",
+  "saps4hana",
+  "md365",
+  "businesscentral",
+  "oraclefusion",
+  "workday",
+  "coupa",
+  "signavio",
+  "sap-ecc",
+  "msteams",
+  "human-in-the-loop",
+  "email-attachments-reader",
+  "document-processor",
+  "google-docs",
+  "google-sheets",
+  "google-drive",
+  "outbound-call",
+  "case-queue-producer",
+  "case-queue-consumer",
+  "handover",
+  "shopify",
+  "hubspot",
+  "zendesk",
+  "intercom",
+  "powerbi",
+  "salesforce",
+  "pipedrive",
+  "tableau",
+  "image-generation",
+  "forecasting",
+  "supabase",
+  "attio",
+  "amplitude",
+  "websets",
+  "firecrawl-platform",
+  "duvo-computer-use",
+  "duvo-computer-use-rdp",
+  "eu-commodity-prices",
+  "asana",
+  "jira",
+  "ssh",
+  "scheduling",
+  "github",
+  "linear-native",
+  "notion-native",
+  "granola",
+  "apify",
+  "bamboohr",
+  "edi",
+  "maersk",
+  "infor-nexus",
+  "dhl",
+  "fedex",
+  "ups",
+  "dsv",
+  "trinity-logistics",
+  "ontrac",
+  "dachser",
+  "hellmann",
+  "omni-logistics",
+  "ceva-logistics",
+  "dpd",
+  "canada-post",
+  "o9",
+  "manhattan",
+  "blue-yonder"
+]
  2. Changed1 schema field changed
    • changedInput schema / properties / integration_slug / enum
      Previous value: -[
-  "googlecalendar",
-  "google-calendar",
-  "gmail",
-  "slack",
-  "googledocs",
-  "googlesheets",
-  "googledrive",
-  "firecrawl",
-  "exa",
-  "exa-search",
-  "exa-company-search",
-  "exa-people-search",
-  "deep-research",
-  "system",
-  "browser-agent",
-  "browser-agent-devtools",
-  "notion",
-  "linear",
-  "confluence",
-  "custom_mcp",
-  "user_mcp",
-  "snowflake",
-  "sharepoint",
-  "teams",
-  "onedrive",
-  "bigquery",
-  "databricks",
-  "netsuite",
-  "outlook",
-  "microsoft-calendar",
-  "excel",
-  "word",
-  "saps4hana",
-  "md365",
-  "businesscentral",
-  "oraclefusion",
-  "workday",
-  "coupa",
-  "signavio",
-  "sap-ecc",
-  "msteams",
-  "human-in-the-loop",
-  "email-attachments-reader",
-  "document-processor",
-  "google-docs",
-  "google-sheets",
-  "google-drive",
-  "outbound-call",
-  "case-queue-producer",
-  "case-queue-consumer",
-  "handover",
-  "shopify",
-  "hubspot",
-  "zendesk",
-  "intercom",
-  "powerbi",
-  "salesforce",
-  "pipedrive",
-  "tableau",
-  "image-generation",
-  "forecasting",
-  "supabase",
-  "attio",
-  "amplitude",
-  "websets",
-  "firecrawl-platform",
-  "duvo-computer-use",
-  "duvo-computer-use-rdp",
-  "eu-commodity-prices",
-  "asana",
-  "ssh",
-  "scheduling",
-  "github",
-  "linear-native",
-  "notion-native",
-  "granola",
-  "apify",
-  "bamboohr",
-  "edi",
-  "maersk",
-  "infor-nexus",
-  "dhl",
-  "fedex",
-  "ups",
-  "dsv",
-  "trinity-logistics",
-  "ontrac",
-  "dachser",
-  "hellmann",
-  "omni-logistics",
-  "ceva-logistics",
-  "dpd",
-  "canada-post"
-]New value: +[
+  "googlecalendar",
+  "google-calendar",
+  "gmail",
+  "slack",
+  "googledocs",
+  "googlesheets",
+  "googledrive",
+  "firecrawl",
+  "exa",
+  "exa-search",
+  "exa-company-search",
+  "exa-people-search",
+  "deep-research",
+  "system",
+  "browser-agent",
+  "browser-agent-devtools",
+  "notion",
+  "linear",
+  "confluence",
+  "custom_mcp",
+  "user_mcp",
+  "snowflake",
+  "sharepoint",
+  "teams",
+  "onedrive",
+  "bigquery",
+  "databricks",
+  "netsuite",
+  "outlook",
+  "microsoft-calendar",
+  "excel",
+  "word",
+  "saps4hana",
+  "md365",
+  "businesscentral",
+  "oraclefusion",
+  "workday",
+  "coupa",
+  "signavio",
+  "sap-ecc",
+  "msteams",
+  "human-in-the-loop",
+  "email-attachments-reader",
+  "document-processor",
+  "google-docs",
+  "google-sheets",
+  "google-drive",
+  "outbound-call",
+  "case-queue-producer",
+  "case-queue-consumer",
+  "handover",
+  "shopify",
+  "hubspot",
+  "zendesk",
+  "intercom",
+  "powerbi",
+  "salesforce",
+  "pipedrive",
+  "tableau",
+  "image-generation",
+  "forecasting",
+  "supabase",
+  "attio",
+  "amplitude",
+  "websets",
+  "firecrawl-platform",
+  "duvo-computer-use",
+  "duvo-computer-use-rdp",
+  "eu-commodity-prices",
+  "asana",
+  "jira",
+  "ssh",
+  "scheduling",
+  "github",
+  "linear-native",
+  "notion-native",
+  "granola",
+  "apify",
+  "bamboohr",
+  "edi",
+  "maersk",
+  "infor-nexus",
+  "dhl",
+  "fedex",
+  "ups",
+  "dsv",
+  "trinity-logistics",
+  "ontrac",
+  "dachser",
+  "hellmann",
+  "omni-logistics",
+  "ceva-logistics",
+  "dpd",
+  "canada-post"
+]
  3. Changed1 schema field changed
    • changedInput schema / properties / integration_slug / enum
      Previous value: -[
-  "googlecalendar",
-  "google-calendar",
-  "gmail",
-  "slack",
-  "googledocs",
-  "googlesheets",
-  "googledrive",
-  "firecrawl",
-  "exa",
-  "exa-search",
-  "exa-company-search",
-  "exa-people-search",
-  "deep-research",
-  "system",
-  "browser-agent",
-  "browser-agent-devtools",
-  "notion",
-  "linear",
-  "confluence",
-  "custom_mcp",
-  "user_mcp",
-  "snowflake",
-  "sharepoint",
-  "teams",
-  "onedrive",
-  "bigquery",
-  "databricks",
-  "netsuite",
-  "outlook",
-  "microsoft-calendar",
-  "excel",
-  "word",
-  "saps4hana",
-  "md365",
-  "businesscentral",
-  "oraclefusion",
-  "workday",
-  "coupa",
-  "signavio",
-  "sap-ecc",
-  "msteams",
-  "human-in-the-loop",
-  "email-attachments-reader",
-  "document-processor",
-  "google-docs",
-  "google-sheets",
-  "google-drive",
-  "outbound-call",
-  "case-queue-producer",
-  "case-queue-consumer",
-  "handover",
-  "shopify",
-  "hubspot",
-  "zendesk",
-  "intercom",
-  "powerbi",
-  "salesforce",
-  "pipedrive",
-  "tableau",
-  "image-generation",
-  "forecasting",
-  "supabase",
-  "attio",
-  "amplitude",
-  "websets",
-  "firecrawl-platform",
-  "duvo-computer-use",
-  "duvo-computer-use-rdp",
-  "eu-commodity-prices",
-  "asana",
-  "ssh",
-  "scheduling",
-  "github",
-  "linear-native",
-  "notion-native",
-  "granola",
-  "apify",
-  "bamboohr",
-  "edi",
-  "maersk",
-  "dhl",
-  "fedex",
-  "ups",
-  "dsv",
-  "trinity-logistics",
-  "ontrac",
-  "dachser",
-  "hellmann",
-  "omni-logistics",
-  "ceva-logistics",
-  "dpd",
-  "canada-post"
-]New value: +[
+  "googlecalendar",
+  "google-calendar",
+  "gmail",
+  "slack",
+  "googledocs",
+  "googlesheets",
+  "googledrive",
+  "firecrawl",
+  "exa",
+  "exa-search",
+  "exa-company-search",
+  "exa-people-search",
+  "deep-research",
+  "system",
+  "browser-agent",
+  "browser-agent-devtools",
+  "notion",
+  "linear",
+  "confluence",
+  "custom_mcp",
+  "user_mcp",
+  "snowflake",
+  "sharepoint",
+  "teams",
+  "onedrive",
+  "bigquery",
+  "databricks",
+  "netsuite",
+  "outlook",
+  "microsoft-calendar",
+  "excel",
+  "word",
+  "saps4hana",
+  "md365",
+  "businesscentral",
+  "oraclefusion",
+  "workday",
+  "coupa",
+  "signavio",
+  "sap-ecc",
+  "msteams",
+  "human-in-the-loop",
+  "email-attachments-reader",
+  "document-processor",
+  "google-docs",
+  "google-sheets",
+  "google-drive",
+  "outbound-call",
+  "case-queue-producer",
+  "case-queue-consumer",
+  "handover",
+  "shopify",
+  "hubspot",
+  "zendesk",
+  "intercom",
+  "powerbi",
+  "salesforce",
+  "pipedrive",
+  "tableau",
+  "image-generation",
+  "forecasting",
+  "supabase",
+  "attio",
+  "amplitude",
+  "websets",
+  "firecrawl-platform",
+  "duvo-computer-use",
+  "duvo-computer-use-rdp",
+  "eu-commodity-prices",
+  "asana",
+  "ssh",
+  "scheduling",
+  "github",
+  "linear-native",
+  "notion-native",
+  "granola",
+  "apify",
+  "bamboohr",
+  "edi",
+  "maersk",
+  "infor-nexus",
+  "dhl",
+  "fedex",
+  "ups",
+  "dsv",
+  "trinity-logistics",
+  "ontrac",
+  "dachser",
+  "hellmann",
+  "omni-logistics",
+  "ceva-logistics",
+  "dpd",
+  "canada-post"
+]
  4. First observed

TDQS

A4.3/5.0
Behavior4/5

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

With readOnlyHint/destructiveHint/openWorldHint/idempotentHint already declared, the description adds real context: it performs no writes, it is a pre-flight verification, and it exercises the target server (with optional auth headers). It omits only secondary traits such as latency/rate-limit behavior of the probe. Note the mild tension between 'Performs no writes' and readOnlyHint=false, but readOnlyHint=false is consistent with an open-world outbound probe that touches a third-party server rather than mutating Duvo data, so this reads as nuance rather than contradiction.

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?

Three tight sentences, front-loaded with the action, then the use case, then the sibling differentiation. The literal endpoint path for the OAuth check is slightly more detail than needed, but every sentence still carries routing or behavioral value.

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?

No output schema, but the description tells the agent what comes back ('surfaces the tool catalog'), and it covers the safety/stance and the pre-flight context. For a zero-required-param, fully schema-documented probe this is close to complete; the only real gap is explaining the raw-URL-vs-slug invocation modes.

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 documents headers, team_id, server_url, and the large integration_slug enum. The description only echoes the auth-header concept and the URL mode; it adds no guidance on the two mutually exclusive invocation modes (raw server_url + headers vs. catalog slug) or on team_id pinning. Baseline 3 is appropriate.

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

Purpose5/5

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

States a specific verb+resource+scope: 'Probe an MCP server URL and list the tools it exposes.' It also names the sibling it must not be confused with (checkMcpOAuth / the oauth/mcp/check endpoint), so an agent can route between them without opening either schema.

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

Usage Guidelines5/5

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

Explicitly frames the use case ('dry-run before creating a connection') and enumerates what the call validates: URL reachability, correctness of authentication headers, and the returned tool catalog. It also names the adjacent alternative and what that alternative does differently (OAuth-support probing), giving both when-to-use and when-to-use-something-else.

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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