Thinkers' principles

Official · updated Nov 4, 2026 · v1.0.1

Checks the reserve your business holds in cash, equipment, people, stock, technology and products, against the dam management Konosuke Matsushita described, and says where to build it.

When to use it

• You want to know how long the business could ride out a bad season
• Things are going well and you want to prepare for a downturn

What you give it

• What you hold in each area today
• Normal and worst-month usage
• Monthly revenue and fixed costs
• What is changing

What you get

A table of reserves by area (cover, planned or accidental, reserve or waste), a bad-season walk-through, and build, hold or release recommendations with their cost.

Changelog

• v1.0.1 · Nov 4, 2026 · Example output now opens with the attribution and not-affiliated lines, as the skill's own checks require. The reserves table now covers all six areas: Technology is added as not in the input.
• v1.0.0 · Nov 4, 2026 · First release.

Sources

1. ダム経営 (dam management) - 松下幸之助.com, PHP Institute (2026-11-04)
2. Kazuo Inamori, 経営12カ条 (excerpt): hearing the dam management talk - 日経BOOKプラス (2026-11-04)
3. 治にいて乱を忘れず - 松下幸之助.com, PHP Institute (2026-11-04)
4. PHP研究所 company page (松下幸之助, PHP研究所創設者) (2026-11-04)

Related skills

• Cash runway update Writes a cash runway update: cash, 3-month average net burn, runway in months, base, downside and upside scenarios, and levers, formulas shown.
• Budget variance note Explains budget vs actual variances over a threshold: favorable or unfavorable, the driver (timing, volume, price, one-off), and the forecast impact.
• Quarterly planning pack Builds a quarterly plan: last quarter's review, real capacity, a ranked priority list with a cut line, dependencies, risks, and commitments vs stretch.
• Monthly KPI summary for leadership Writes a monthly KPI summary: a headline, each KPI vs last month and target with the reason, and 3 things to act on. Never invents numbers.

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