save

name	save
description	Save a knowledge record (decision, preference, milestone, or problem) to MemPalace for the current project wing. Use at end of session or any time after a key insight — no compaction needed.
type	Engineer (light)

Save

Type: Engineer (light) Requires: MemPalace MCP server

Save a knowledge record to MemPalace for the current project wing. Unlike compact-save, this is for capturing semantic knowledge (decisions, preferences, milestones, problems) — not task state before compaction.

When this runs

• User says /vladyslav:save, "save to MemPalace", "remember this", "запам'ятай це", "збережи в MemPalace"
• Explicitly triggered at the end of a session when the user wants to persist a key insight without compacting

Steps

Step 1: Detect wing

Derive wing from working directory basename (strip leading dots → lowercase → match wings list in ~/.claude/CLAUDE.md). If ambiguous or outside a known project, prompt the user to confirm or specify the wing.

Step 2: Identify content and type

If the user provided the content to save in their message → use it directly.

If no content was provided → ask:

"What should I save to MemPalace? Please describe it briefly, and tell me the type: decision, preference, milestone, or problem."

Classify the room type based on the content:

• decision — architectural or design choice with rationale ("we use X because Y")
• preference — how the user wants things done ("always do X", "never do Y")
• milestone — completed work worth remembering ("shipped feature X")
• problem — known issue, gotcha, or constraint ("Z breaks when W")

Default to decision if the type is unclear.

Step 3: Check for duplicates

Call mempalace_check_duplicate with wing = detected wing and query = first 80 characters of content.

If a similar record exists → show it to the user and ask:

"A similar record already exists: <existing name>. Update it, save a new one, or cancel?"

Step 4: Save to MemPalace

Call mempalace_add_drawer with:

• wing: detected wing
• room: classified room type (decision / preference / milestone / problem)
• name: short kebab-case slug from the content (max 40 chars), e.g. use-vitest-not-jest
• content: a plain-text record including the date:

[WHAT] <one sentence summary>
[WHY] <rationale or context, if known>
[DATE] <today's date ISO 8601>

Omit [WHY] if no rationale was provided.

Step 5: Confirm

Output one line: Saved to MemPalace — wing:<wing> room:<room> "<name>"

Failure modes

• MemPalace unreachable → output a one-line warning and suggest the user save the note manually. Never block on this.
• Wing undetectable → prompt the user before saving. Never guess a wing silently.