feat(telemetry-sweep): F-013 — per-skill references via PR #6 mechanism (#16)

* test(telemetry-sweep): coverage fixture for per-skill references

F-013 RED bar. Iterates core/skills/*/SKILL.md, parses YAML frontmatter,
and asserts each skill's references: array contains rules/telemetry.md
(Path A — the PR #6 mechanism). Fails today because no skill declares
the reference yet; will pass after the sweep lands.

Self-tests against four fixtures (has, has-multi, missing, no-key) so
the matcher itself is defended.

Spec: specs/telemetry-skill-reference-sweep.md AC-020..022
Plan: docs/plans/telemetry-skill-reference-sweep-plan.md § Phase 1

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(skills): F-013 — declare references: rules/telemetry.md across all 27 skills

Closes Swarm F's M3-deferred per-skill telemetry reference sweep. Every
core/skills/*/SKILL.md now declares `rules/telemetry.md` in its
`references:` frontmatter array via the PR #6 mechanism (Path A).

- 17 skills get a fresh `references: ["rules/telemetry.md"]` entry
  (agents-md, away, back, brand, changelog, implementer, init,
  learnings, milestone, optimize, plan, promote, reviewer, roadmap,
  spec, test-writer, version)
- 10 skills append `rules/telemetry.md` to existing references lists
  (cycle, verify, deploy, docs, retro, tdd-cycle, infographic,
  dashboard, brand-update, ux) — preserves existing entries and order

The contract documented in core/rules/telemetry.md is now discoverable
from any individual SKILL.md. Coverage gated by
tests/telemetry-sweep/test-skill-reference-coverage.sh.

No body changes. No behavior changes. No schema additions. plugins/add/
regenerated via scripts/compile.py; codex output unchanged
(`references:` is stripped during codex frontmatter projection — same
behavior as `allowed-tools`).

Spec: specs/telemetry-skill-reference-sweep.md — AC-001a, AC-003a,
AC-010, AC-011, AC-014, AC-015, AC-023, AC-024 satisfied.
PR #6 (merged 2026-04-26 at 3522a8f) unblocked Path A.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* docs(spec): telemetry-skill-reference-sweep audit checklist filled

Flips § 7 audit from 27× pending → 27× swept with per-skill notes
(fresh entry vs. appended). Records the 10 skills that already had
`references:` pre-sweep (cycle, verify, deploy, docs, retro, tdd-cycle,
infographic, dashboard, brand-update, ux) vs. the 17 that got fresh
entries. Bumps spec status Draft → Shipped (Path A), revises target
release v0.9.2 → v0.9.3, and adds a v1.0.0 revision-history entry
crediting PR #6 as the unblocker.

CHANGELOG [Unreleased] gets a `### Changed` entry summarizing the
sweep for the next v0.9.x release notes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: MountainUnicorn