discipline: sharpen skill #7566

Parent

Refs #7555. Source: PLAN Phase 0, topic poteto-review. Thread: sharpen skill (deferred).

Depends on

• none (parked: opens on the reopen trigger below, not on an edge)

Reopen trigger

The owner's sessions show the repeated ask.

Outcome

When reopened: Lauren's sharpen ships as a one-paragraph, user-typed discipline skill; the
loosen-a-constraint line lives only inside it.

Decisions

• Deferred (Q172, Q173, D105). Origin: Lauren's (the skill), placement ours.
• Options on record: a /playbooks:fable-5 chapter (Q132, rejected: not model-neutral); a
  /discovery:blindspot action (Q127, replaced).

Key interfaces

None (deferred, no module change yet).

Done when

• Session evidence of the repeated ask is cited in a comment.
• A slice is filed under this item.

Out of scope

• Any other discipline skill change.