Preflight

Runs a checklist of periodic maintenance tasks, reports which are overdue, and carries those items forward so the count stays visible at a glance.

Workflow

1. Gather state

~/.claude/hooks/preflight-check.sh

Output is pipe-delimited check|status|detail|flag. flag=warn means the row is overdue.

2. Present as a table

Columns: Check, Status, Detail, Action.

• Bold the Check cell and prefix the Status cell with ⚠️ **OVERDUE** when flag=warn.
• Action suggests the matching slash command (e.g. /cleanup-dev). Clean rows show —.
• End with a one-line summary: N overdue / M checks.

3. Carry the overdue items forward

The outcome this step owes: every overdue check leaves a standing item the user can see after the table has scrolled away, and a check that has since been run stops carrying one.

Where that item lives depends on the session — read docs/workflow/task-surface.md for the convention. In short: a task-tracking tool in the roster takes the items; absent one, the table from step 2 is the record — close with the one-line summary and let step 4 act on it directly.

Where a tool is used, one item per overdue check:

• subject: <key> overdue — run <action> (e.g. cleanup-dev overdue — run /cleanup-dev)
• description: the row's detail field plus the suggested slash command
• identity: preflight_key = <key>, so re-runs match rather than duplicate

An overdue check whose item already stands is left alone. A check now reading clean has its item marked complete — the self-heal. An item bearing no preflight_key was not written by this skill; never touch it.

4. Offer to run overdue items

If any rows are flagged, use AskUserQuestion to let the user pick which overdue tasks to run now (multiSelect). Invoke the suggested slash command for each selection.

When a run finishes, the next /preflight invocation reads the check as clean again — and where step 3 seated an item, that run closes it via the self-heal. No per-skill coupling needed.

Checks

Key	Threshold	Action when overdue
cleanup-dev	30 days since last run	/cleanup-dev
daily	not yet run today (calendar day)	/daily
triage	not yet run today (calendar day)	/triage
nazgul-checks	30 days since last review of the rubric files	walk skills/nazgul/checks/*.md, then /nazgul reviewed
palantir	any of your PRs/MRs carries new comments since you last looked	/palantir activity

Add new checks by extending ~/.claude/hooks/preflight-check.sh and the table above.