Agile Add Timeline Snapshot

When the user asks to "snapshot the timeline", "create a timeline bucket", or record what has happened in the last 20 minutes (or a custom window) on the agile board. The snapshot is stored under the current sprint's timeline/ folder as <ISO-from>-<ISO-to>.org and read by the temporal grid's compass timeline show command.

1. Generate the snapshot scaffold for the default 20-minute window:

   ./compass.sh timeline snapshot
   

   For a custom window use --since 1h or --from <ISO> --to <ISO>. If compass warns that the event count exceeds the cap (20), split the window before continuing — a busy bucket defeats the purpose.

2. Read the generated file — compass prints its path on success.
3. Fill in * Problems and suspicious decisions based on the events:
   • LLM co-authored commits that touch code without an open task.
   • PRs merged while CI was still pending (look for force-merge patterns in the PR table).
   • Tasks that went DONE rapidly with no #+environment: stamp (may indicate incomplete bookkeeping).
   • Captures filed but no follow-up story opened yet.
4. Fix the audit section if compass flagged bookkeeping drift (items closed without environment stamp). Correct the actual task/story docs; do not just edit the snapshot.

5. Commit the snapshot:

   git add <file> && git commit -m "[agile] Timeline snapshot: <from>-<to>" && git push
   

• How do I create a timeline snapshot? — step-by-step with examples.

• Agile timeline: bucketed summaries of recent activity — the story this skill delivers.
• Temporal command coherence investigation — design rationale for the consistent-substrate model the snapshot uses.