DD-NNN: <short title>

# Machine-readable header (keep keys stable — greppable by agents)
id: DD-NNN
status: PARKED          # PARKED | FORCED | DONE | SUPERSEDED
issues: []              # e.g. [1621, 1622]
adrs: []                # related ADRs
decided: YYYY-MM-DD
decided_at_sha: null    # optional tip SHA when parked
parent: null            # umbrella issue or prior DD

One-line intent

<What we decided not to build yet, and why that is intentional.>

Plan (what we already concluded)

<The design that should not be rediscovered from scratch months later. Include counter-priors: what we will not do even when forced.>

Reopen when (consumer force)

Concrete, checkable signals — not vibes:

1. Named consumer — app or product module: …
2. Evidence of dual-lock / host workaround — path or issue: …
3. Acceptance that unblocks — e.g. “poly_ref without host dual-lock on Comment”

When a force lands:

1. Set status: FORCED and date it.
2. Comment on every linked issue with the consumer + this DD path.
3. Implement against the plan below; open child issues if the plan splits.
4. When shipped, set status: DONE and close issues.

Already shipped (do not re-litigate)

<Substrate, ADRs, prove commands that already hold.>

Explicitly out of scope until force

<…>

Trail

Date	Event
YYYY-MM-DD	Parked (this DD)