different-ai/openwork · error

MCP_OAUTH_CLIENT_REJECTED

MCP_OAUTH_CLIENT_REJECTED

Error message

MCP_OAUTH_CLIENT_REJECTED

What it means

Error "MCP_OAUTH_CLIENT_REJECTED" thrown in different-ai/openwork.

Source

Thrown at ee/apps/den-api/src/capability-sources/external-mcp-diagnostics.ts:1258

  }
  if (numericCode === -32602 && fallbackPhase === "MCP_TOOL_EXECUTION") {
    return {
      phase: "MCP_TOOL_EXECUTION",
      category: "mcp_tool_input_invalid",
      code: "MCP_INVALID_PARAMS",
      retryable: false,
      actionOwner: "openwork",
      operatorAction: "Correct the tool arguments using the latest advertised input schema; do not retry the same arguments unchanged.",
    }
  }
  if (numericCode !== undefined) return providerDeclaredErrorClassification()

  const name = errorName(error)
  if (name === "InvalidClientError" || name === "UnauthorizedClientError" || name === "InvalidClientMetadataError") {
    return {
      phase: "AUTH_CLIENT_REGISTRATION",
      category: "oauth_client_registration",
      code: "MCP_OAUTH_CLIENT_REJECTED",
      retryable: false,
      actionOwner: "organization_admin",
      operatorAction: "Verify the client registration, redirect URI, client type, and token endpoint authentication method.",
    }
  }
  if (name === "InvalidGrantError") {
    return {
      phase: fallbackPhase === "CONTINUITY_REFRESH" ? fallbackPhase : "AUTH_TOKEN_ACQUISITION",
      category: "oauth_token_failure",
      code: "MCP_OAUTH_INVALID_GRANT",
      retryable: false,
      actionOwner: "member",
      operatorAction: "Restart authorization; if it repeats, verify redirect URI and PKCE state.",
    }
  }
  if (name === "InvalidScopeError") {
    return {
      phase: "AUTH_USER_OR_WORKLOAD",

View on GitHub (pinned to 2b7df46e8a)

When it happens

Trigger: Thrown at ee/apps/den-api/src/capability-sources/external-mcp-diagnostics.ts:1258 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of different-ai/openwork@2b7df46e8a (2026-09-01). Data as JSON: /api/errors/c00abd228f2e94b4. Report an issue: GitHub.