Four tasks over the approved design: sendMail gains an outcome, the column and template land together, the route requires an address and reports what the send did, and the admin screen asks for it.
sendMail goes first deliberately. Everything else depends on being able to tell a skipped send from a real one, and it is the only change touching a file seven other things already use — so if it is going to break anything, it should break before three tasks are stacked on top of it.
The plan is explicit that no existing caller changes. Ignoring a returned value is legal, which is what makes widening the return type additive rather than breaking, and re-deriving "would this address be blocked?" in the route would have duplicated isAllowedRecipient and the SMTP check at a second site.
Two specs in unrelated features create links with only a label, and the route will refuse that. They are fixed in the same task as the form rather than left for the suite to find, because the alternative is two unrelated features going red on somebody else's branch. That cost is named in the plan rather than discovered.
One inaccuracy is left in deliberately and said out loud: an SMTP rejection is reported as skipped-unconfigured rather than a fourth outcome. The distinction is real, nothing consumes it, and the admin's next action is identical either way — copy the link and send it by hand.
Self-review caught the failure mode from #281, where tasks referred to helpers that did not exist. Task 4 originally said the created-link state "may not be called created". Reading the component showed it is `issued` and holds a bare URL string with nowhere to put a delivery outcome, so the plan now adds a separate `mailed` state beside it rather than widening the one-time token display. Every name in that task is now one that exists.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>