The phrase "agreed to insert" is correct and usable in written English.
It can be used in contexts where parties have come to a consensus about adding something, such as in contracts or collaborative documents.
Example: "After much discussion, we all agreed to insert the new clause into the contract."
Alternatives: "consented to add" or "approved the inclusion".
But the ministers agreed to insert the principle of Georgian sovereignty and territorial integrity into their final communiqué.
Arnautovic and Stoke agreed to insert the clause when he joined the club from Werder Bremen for £2m in September 2013.
For instance, in the second attempt, agreed in October 2013, Google agreed to insert links to three rival shopping sites beow Google's own.
And, in one instance, the Times notes that "after the government learned that a foreign intelligence target had ordered new computer hardware, the American manufacturer agreed to insert a back door into the product before it was shipped".
To mitigate Mr. Taylor's concern that viewers might think that he unfairly took credit for actions that were the C.I.A.'s, Mr. Affleck agreed to insert a postscript written by Mr. Taylor which emphasizes how the rescue was a partnership of the two nations.
To provide an extra layer of accountability, environmental groups said, city and state officials agreed to insert language in the city's federal Clean Water Act permits that will allow citizen groups to go to court to enforce the agreement if current or future government administrations violate its terms.
Investors could agree to insert language into bond contracts that leaves no room for vulture funds.
agreed Monday to insert a 90-page proposal to increase water deliveries to San Joaquin Valley farmers and Southern California and build long-term water infrastructure into a bill written by Sen. Barbara Boxer (D-Calif).
He agreed to have the stent inserted at Texas Health Presbyterian Hospital.
Congress has not yet agreed to the changes and inserted into this year's budget legislation a clause that prohibits NASA from canceling the program, called Constellation, or starting alternatives without Congressional approval.
When he finally agreed to have a feeding tube inserted in mid-February, his family viewed it as a statement that he wanted to live.
