Engineering Method 0.2.0 — documentation, PDF, playbooks

Engineering Method 0.2.0

Released 2026-09-17. This minor release grows the shared skill set from 17 to
29 skills. It adds reader-oriented documentation work at three scales, Humanizer
guidance during drafting, local PDF export, engineering playbooks for
development operations and system deliverables, and a read-only backlog state
check. Existing lifecycle skills and the Claude, Codex and OpenCode adapters
keep their behavior.

Changes

• Documentation lifecycle: documentation-planning, documentation-authoring
  and documentation-review decide the writing scale first, then plan, draft
  and check documentation sets under docs/writing.
• Supporting writing skills: explaining-concepts, writing-procedures,
  empathic-troubleshooting, terminology-guard and visual-placeholders
  apply in documentation and in ordinary replies.
• human-prose-drafting applies adapted Humanizer constraints from the first
  sentence of medium and large texts, without changing facts or structure.
• documentation-pdf exports Markdown to one local PDF through Quarto or Typst,
  with a reusable design, table of contents and page numbers.
• playbook-authoring and playbook-review add scenario-bound playbooks;
  Spec Kit and OpenSpec lifecycles assess playbook need, and stale or missing
  required evidence blocks the dependent operation, convergence or archival.
• backlog state-check is read-only: it detects remote availability without
  creating issues, replacing caches or deleting archives.
• Native evaluation preserves the host's own Claude authentication.

Verification and acceptance

Local verification on the released source: 319 passing tests, plugin
validators, pinned-source provenance audit, independent reviews, a reproducible
committed-source package and disposable Claude/Codex installation without
credentials. Native routing was checked with five documentation cases on each of
Codex and Claude and two bounded OpenCode probes; see
EM-013. Playbook integration has
local and review evidence only, without native routing evaluation; see
EM-014. Sub-records
EM-010,
EM-011 and
EM-012 hold the per-feature evidence.

The routing probes are bounded selection and pre-draft checks; they do not
prove prose quality across a complete draft or a full documentation set. The
OpenCode discovery evidence still covers the 17 skills of 0.1.1 plus two later
probes; no full OpenCode discovery of all 29 skills is claimed. The
historical 0.1.0 acceptance and the
0.1.1 OpenCode scope retain their original limits. No new full
lifecycle, multi-agent or compaction acceptance is claimed.

Install or update

Use installation and maintenance for Claude/Codex and
OpenCode installation for the source-linked loader; restart
the host session after updating. The downloadable package is
engineering-method-0.2.0.zip; verify it with the attached SHA256SUMS.