Implement Improvements

Validate improvements from .turbo/improvements.md, propose a specific working set based on the backlog's actual contents, and run one lane per session: direct, investigate, or plan. Mixing lanes in a single run tangles commits, so the skill processes exactly one lane each time. Entries outside the confirmed working set stay in the backlog for future runs.

Task Tracking

At the start, use update_plan to track each step, restating any remaining steps of a parent workflow alongside them:

1. Read the backlog
2. Validate and classify
3. Recommend, confirm, and update the backlog
4. Run the chosen lane
5. Prune working-set entries from the backlog

Step 1: Read the Backlog

Read .turbo/improvements.md, relative to the repo root resolved with git rev-parse --show-toplevel, except inside a linked worktree — where git rev-parse --git-dir differs from --git-common-dir — in which case use the parent of the common dir. If the file does not exist, there are no improvements to implement; stop.

Parse all entries, extracting for each: