Enrich marketing-plan from Founding Marketing chs. 1 and 17.
Ch. 1 — new "Marketing as investing" north-star section in SKILL.md:
compounding portfolio ("no silver bullets, a hundred golden pellets"),
one-asset-many-returns, audition-not-an-auction, "hope is not a
strategy," plus the problem size x frequency market-quality gate as a
strategic gate in Section 2.
Ch. 17 — the two gaps not already excerpted in growth-patterns.md: the
70/20/10 resource-allocation rule (current / next / experimental) and a
weekly tracking cadence with plateau-indicator alerts that trigger the
next S-curve. Wired into the "how this informs the plan" table and
routed from SKILL.md.
Adds eval id 7. Bumps marketing-plan 1.1.0 -> 1.1.1 (metadata + VERSIONS).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>