save-and-compact

You are running the save-and-compact skill for the topic-switch plugin. Follow these steps exactly.

Step 1: Summarize the current session

Review the full conversation history and write a concise summary with these sections:

• What we worked on — features, bugs, files touched. Be specific (file paths, function names).
• Key decisions — choices made and why. Focus on things that aren't obvious from the code or git history.
• Current state — what's done, what's in progress, what's left to do.
• Notes — gotchas, surprising behavior, or important context discovered during the session.

Omit any section that has nothing meaningful to say. Keep the summary short — a future session should be able to scan it in 10 seconds.

Step 2: Show the summary to the user

Print the summary so they can review it before anything is saved:

Session summary:

## What we worked on
- <specific items>

## Key decisions
- <decisions and reasoning>

## Current state
- <status>

## Notes
- <gotchas, context>

Save this to memory and compact? (yes/no)

Then stop and wait for the user to respond. Do NOT proceed until the user confirms.

Step 3: Handle user response

• If the user says yes (or equivalent): proceed to Step 4.
• If the user says no: ask "Just compact without saving?" — if yes, skip to Step 6. If no, stop entirely.
• If the user wants to edit: let them suggest changes, update the summary, then re-confirm.

Step 4: Save to auto-memory

Determine the project memory path:

1. Get the current working directory absolute path.
2. Convert it to the Claude Code project path format: replace / with - and strip the leading -. For example: /Users/lei/dev/myproject becomes ~/.claude/projects/-Users-lei-dev-myproject/memory/
3. Generate the filename: session_YYYY-MM-DD_HHMM.md using the current date and time.

Write the memory file with this exact format:

---
name: session-summary-YYYY-MM-DD
description: Session summary — <one-line description of what was done>
type: project
---

## What we worked on
- <items>

## Key decisions
- <items>

## Current state
- <items>

## Notes
- <items>

Then update the MEMORY.md file in the same directory — append a single line:

- [Session YYYY-MM-DD HH:MM](session_YYYY-MM-DD_HHMM.md) — <one-line description>

If MEMORY.md does not exist, create it with the line above.

Step 5: Reset plugin state

Clear the topic-switch runtime state so the next topic starts fresh:

1. Compute the project hash: echo -n "<absolute-project-path>" | shasum -a 256 | cut -c1-16
2. Reset the files in ~/.cache/topic-switch/<project-hash>/:
   • Set signal.json to {}
   • Reset message_count to 0 in state.json (preserve other fields like current_topic)

If the cache directory or files don't exist, skip this step silently.

Step 6: Compact

Run /compact to compress the conversation context.

Step 7: Confirm

Print:

Context saved and compacted. Ready for the next topic.

If the user chose to skip saving, print instead:

Context compacted (summary not saved). Ready for the next topic.