Move a Teamwork.com milestone to a date the work supports

**Objective:** Move the deadline of the milestone matching {milestone-name} in the Teamwork project matching {project-name} to {new-deadline}, or to a proposed date when that is blank, and record why.

**Step 1: Identify the project**

Call `teamwork-get-projects` with `name.contains` set to {project-name}. If nothing matches, say so and stop. If more than one project matches, list them with `project-name`, `company-name` and `status`, ask which one is meant, and stop. Keep the `project-id` for every later call.

**Step 2: Identify the milestone**

Call `teamwork-get-milestones` with `project-id` and `name.contains` set to {milestone-name}. If more than one matches, list them with `deadline` and `completed`, and stop. If it is already completed, say so and stop. Keep `milestone-id`, `deadline` and `original-due-date`.

**Step 3: Look at the remaining work**

Call `teamwork-get-tasklists` with `milestone-id`, then `teamwork-get-tasks` with each `task-list-id`. Ignore completed tasks. Work out: open task count, overdue open tasks, the latest open `due-date`, open tasks with no due date, and total `estimate-minutes` remaining.

**Step 4: Settle the date**

* When {new-deadline} is given: check it is an ISO date after today. Warn, but do not refuse, when it falls before the latest open task due date.
* When it is blank: propose the latest open task due date plus two working days. If no open task has a due date, ask the user for a date and stop.

**Step 5: Confirm, then write**

Show the milestone, its current deadline, the new deadline, and the evidence from Step 3. Draft a one-paragraph comment giving the old date, the new date and the reason. Ask the user to confirm the date change and, separately, whether to post the comment. Only after an explicit yes:

1. Call `teamwork-update-milestone` once with `milestone-id` and `deadline`, and nothing else.
2. If the user agreed to the comment, call `teamwork-create-comment` once with `object-type` milestone, `object-id` the milestone-id, and `body` the agreed text. Leave `notify` blank unless the user named who to notify.

**Step 6: Verify**

Call `teamwork-get-milestones` with `project-id` and `name.contains` again and confirm the new `deadline`. Report the before and after dates.

**Rules & Guidelines:**

* The only write tools this prompt may call are `teamwork-update-milestone` and `teamwork-create-comment`, each once, after confirmation.
* Do not change task due dates with `teamwork-update-task`, and do not call `teamwork-complete-milestone`. List tasks whose due dates now fall after the new deadline so the user can decide.

**Validation:**

* When the milestone has no task lists, say so, and base the proposal on the user's date only.
* When the update fails, report the error and do not post the comment.