v1.15.0

Added

• skills/ duplication and reachability now ship as a committed regression gate.
  scripts/skills-duplication-metric.ts measures shingled line duplication across every
  skills/ Markdown file (duplicatedLines is the total footprint, excessLines is the
  removable figure — length × (copies - 1) — and the two are now reported and tested
  separately after an earlier draft conflated them) and scripts/skills-reference-graph.ts
  resolves every skills/ file against the rest of the repository to flag orphaned or
  weakly-referenced files. Both ship with unit tests reached by bun run test:scripts, and
  excessLines carries a ceiling assertion so future duplication growth fails the gate
  instead of accumulating silently; a snapshot-equality assertion was rejected because it
  would go red on any unrelated edit.

Fixed

• skills/AGENTS.md's Agent Table hand-named a model per specialist in a second location,
  already stale for two roles and unresolvable or profile-ambiguous for two more —
  skills/model-profiles.json is the only place that should name a model or effort level
  for any agent on any host. The "Model hint" column is removed in favor of a pointer to the
  charter's own metadata.model_tier, and a scripted, mutation-demonstrated scan now bans
  any model display name or model ID from that file.
• Three citations across two shipped Maestro reference files pointed at one developer's
  home directory (references/maestro.md, references/maestro/fact-ledger.md, one
  instance named as a tier of the fact ledger's evidence taxonomy), unreachable for any
  other developer, CI runner, or session, and copied verbatim into all four
  apps/*-plugin/skills/ bundles. The coverage-checklist rule is rewritten to a reachable
  location instead of being dropped, and a repo-wide scan now fails on any /Users/ or
  /home/ path under skills/.
• references/agent-orchestration.md's Roles table omitted judge and meta-judge
  for a full release cycle, invisible to the existing guard because it validated only the
  charter paths already mentioned there. Both charters are now documented, and a new
  coverage test asserts every directory under skills/agents/ has a Roles table entry.
• The sub-agent roster guard could not match the string it existed to ban. It rejected
  the literal patterns 16 subagent, 16 [Ss]pecialist, and 16 reusable sub-agent, but
  the hyphenated 16 sub-agent specialists in docs/ONBOARDING.md defeated all three while
  CLAUDE.md separately still read "15" — both passed the guard. It now rejects any count
  other than 17 in that shape, with an explicit historical allowlist for legitimate
  past-tense narration, and all four stale counts found by scanning
  (CLAUDE.md, docs/ONBOARDING.md, FEATURES.md, .claude-plugin/marketplace.json) are
  corrected.