dead-end

/lore:dead-end — Record a dead-end approach

Gather the following from the user conversationally, asking only for what is missing:

1. Title — short noun phrase describing the failed approach (required)
2. Goal — what was being attempted
3. What was tried — concrete approach with enough detail to recognize it next time
4. Why it failed — root cause (not just symptoms)
5. Revive condition — specific condition that would make retrying worthwhile ("Never" is valid)
6. Subsystems — comma-separated subsystem names this dead-end is associated with (optional)
7. Tried date — when this was attempted (YYYY-MM-DD; defaults to today)

Dead-ends are universal (not project-specific). Once you have the title at minimum, run:

lore new dead-end \
  --title "<title>" \
  [--subsystems "<sub1>,<sub2>"] \
  [--revive-condition "<condition>"] \
  [--tried "<YYYY-MM-DD>"] \
  [--vault "$LORE_VAULT"]

Then open the written file, fill in the body sections with the user's answers, and confirm the note path.

If no session note exists the CLI will print a skip notice — that is expected; continue normally.