session-save

If skipping a step, no need to explain that you did, just skip it.

1. Update the session

Call update_session with:

what_happened: State at end of session, single paragraph. What's true NOW — what got resolved, what's still open, what's blocking the next pickup. One line of texture (grind, breakthrough, spiral) if relevant. Anchor to artifacts — "3 tests in test_banned_words.py fail because X" beats "some tests broke." If it's longer than 4 sentences, it will be truncated. So be conscise

IMPORTANT DO NOT INCLUDE:
  - Anything `git log` knows (diffs, file lists, commit messages).
  - Anything that belongs in a memory (preferences, decisions, moments). Don't duplicate.
  - Process narration ("we discussed," "we considered," "we decided to").
  - Chronology ("first we did X, then Y, then Z").
  - Long file paths (use relative file paths)
  - Any information that already included in a memory
  - Number of files/lines changed

• for_next_session: Bulleted TODOs, action-verb first, one line each. Each item should be something the next Charlie can pick up and do without re-reading the transcript. "Continue banned-words work" = useless. "Fix 3 failing tests in test_banned_words.py" = actionable. Keep them short and actionable.

• tags: 3–6 noun-form keywords for retrieval. Topics, not actions. Prefer "banned-words-detector" over "improving detection."

• workspace: Current workspace path (absolute).

2. Create / Update Memories

Review the session for anything worth remembering. Check activation context and recent recalls first; if a memory already exists for the subject, update it instead of creating a new one. It's fine if there's nothing worth saving — don't invent memories to look productive. If unsure, ask.