Module order 

2026-09-26: The recommended merge order, the mermaid gitGraph that draws it (main as a line, each PR a branch merged back in order), and the “Recommended next steps” list.

Owner: bench gate. Invariants:

• The chart and every list of PR numbers built by cap_prs show at most CHART_PR_BOUND PRs, and say how many more there are.
• merge_order ranks only unmerged, non-draft PRs whose changed files were read.

Constants

CHART_PR_BOUND

2026-09-26: The most PRs the chart draws and cap_prs lists.

Functions

cap_prs

2026-09-26: #1, #2 … +k more: at most CHART_PR_BOUND numbers, then the count of the rest.

merge_order

2026-09-26: The recommended merge order over the orderable PRs, sorted by, in turn:

render_next_steps

2026-09-26: “Recommended next steps”: the head of merge_order, the unmerged PRs whose changed files were unreadable, unmerged PRs that contend with a merged one, and merged PRs with promotion debt. Its inputs are the changed paths and the draft and merged flags; the closing line names what they cannot show.

render_order_chart

2026-09-26: The chart: main as a line, each ordered PR as a branch off it, merged back in order, for the first CHART_PR_BOUND PRs. The caption says “Showing N of M” and lists the rest through cap_prs. With nothing to order, a sentence replaces the chart.