feat: wire claude-illustrate-skill into the team

[d6veteran]

Closes Proposal 6, which absorbed Proposal 4's backend wiring in PR #16.

The skill now exists at code-katz/claude-illustrate-skill (MIT) and carries the mechanics deliberately kept out of this repo: the render-and-inspect pipeline, the contact-sheet technique, per-backend setup for Recraft / Hugging Face / Canva / Figma, the provenance format, and the IP and trademark reference.

The finding worth repeating

Logos and icons need no image backend at all. Vector marks are authored as SVG, rendered across the size ladder, inspected, and refined — no account, no API key, no vendor, no cost. That answers most of the original "Kai cannot create quality images" problem without buying anything. A backend is only needed for raster illustration, a far narrower gap than the problem statement assumed.

What changes here

• Seventh "Works Well With" row for /illustrate
• A git clone install line (see divergence note below)
• One line in profiles/iris.md pointing at the skill, with instructions to say when it is relying on it and work without it if absent — the same rule the Kai fix established, so the persona never claims a capability the install has not provided
• Regenerated agents/iris.md, hand-synced commands/iris.md, DEVLOG entry

One deliberate divergence

The other six companions install with curl -o ~/.claude/skills/<name>/SKILL.md. This skill is multi-file — backends/ and reference/ siblings that SKILL.md reads on demand — so curl would silently install a skill missing most of its content. It uses git clone instead, called out explicitly in the README rather than left to surprise someone.

Dogfooding caught three real bugs in the skill

Worth noting because each produced plausible-looking wrong output rather than an error:

• Screenshotting a bare .svg with --window-size crops instead of scaling, so a "16px render" is really the top-left 16×16 corner of a 512px image. Looks like a broken mark; is a broken command.
• '<img src="...">' inside a file:// contact sheet races the screenshot and fails silently, yielding a blank sheet that reads as a design failure.
• --virtual-time-budget is required or capture fires before layout settles.

Plus: individual small PNGs are unreadable viewed alone, so the contact sheet is the primary inspection artifact, not a nicety. And Chromium is frequently absent from PATH while present under the Playwright directory. All now documented as technique.

Verification

• bash tests/run.sh — 128/128, both drift guards green
• All skill files return 200 from raw.githubusercontent.com
• Prior-art licenses verified: all three MIT. Content is original; ideas are credited.

Note for the maintainer

The repo description on claude-illustrate-skill is not set — this session's GitHub app can't create or edit repo metadata (403 on both). Suggested text is in the PR thread.

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