milestone-track — roadmap status rollup

The engine is milestone-track.js (portable Node, zero deps). It reads a PRD in this common markdown-roadmap format and reports, per milestone, how many status items are done vs open vs struck, an overall completion percentage, and the first open item to work next. It is a report, not a gate — it never touches the PRD and exits 0 even when work is open. It understands two common PRD mutation idioms: ~~struck~~ items are counted as dropped/folded (never as open — "REMOVE by striking through in place"), and a ## CURRENT DIRECTION heading means only the current tree is rolled up by default ("exactly one current direction").

What it counts

• Checkboxes — - [x] done, - [ ] open (SUCCESS CRITERIA lists).
• Table glyphs — ☑ done, ☐ open in any table cell (e.g. the F-M0 OUTPUT survivors table's "built?" column).
• Struck items — anything wrapped in ~~...~~ (a struck checkbox or a struck bullet) is counted as struck, separately, and excluded from the done/open percentage denominator.
• Milestones — items bucket under the nearest preceding milestone marker: a ## N./### M... heading, or a row of a MILESTONES table. A heading and a table row that share a label (e.g. ### M1 and | M1 | ... |) merge into one bucket. Milestones with zero status items are omitted from the report.

Commands

node milestone-track.js [--file <path>] [--all]
node milestone-track.js --canary
node milestone-track.js --help

• default reads PRD_ROADMAP.md in the current directory. If a ## CURRENT DIRECTION heading exists, the rollup is scoped to that fork section (heading → end of file); the output line names the scope.
• --all ignores the fork and rolls up the entire file (both the superseded original tree and the current fork).
• --file <path> points at a different roadmap.
• --canary self-test (below).

Examples

• A PRD with a superseded tree and an active fork: node milestone-track.js rolls up just the ## CURRENT DIRECTION section — its success criteria and milestone tables — with the first open item as next:.
• Whole-file view including the completed original tree: node milestone-track.js --all — adds the original success-criteria bucket alongside the fork's.
• A different project's PRD: node milestone-track.js --file /path/to/PRD_ROADMAP.md.

Scope & percentage semantics

• Fork scope (default when ## CURRENT DIRECTION is present) = from that heading to EOF — deliberately NOT "until the next ##", because the fork's own F1/F2/…/F-M0 sections are all ## headings that belong to it. The report always prints which scope ran, so a fork rollup is never mistaken for a whole-file one.
• Overall % = done / (done + open). Struck items are excluded from the denominator (they are neither open work nor a completed criterion). A milestone with no done/open items shows n/a.

Windows notes

• Pure Node stdlib; no shell quoting traps. Handles both \n and \r\n line endings, so a CRLF-saved PRD parses identically.
• Reads the file as UTF-8, so ☐/☑ glyphs and em-dashes are matched correctly (no PowerShell Set-Content ANSI round-trip involved — the tool only reads).

Exit codes

0 always — it is a report, not a gate (open work does not fail it) · 2 usage/parse error only (unknown flag, or a missing/unreadable --file).

Verification (the done-check)

node milestone-track.js --canary

Self-tests both directions on a bundled fixture (modeled on a typical PRD: a ## CURRENT DIRECTION fork, - [x]/- [ ] checkboxes, a ☑/☐ glyph table, a MILESTONES table whose rows merge with ### M... headings by label, and one ~~struck~~ item). It asserts exact per-milestone counts, correct next-item detection, that struck items never inflate done/open, and that default (fork) scope genuinely differs from --all. MUST print CANARY PASS 28/28 before you trust a rollup.