Grammar of Stewardship — Overview

The Grammar of Stewardship is not a UI grammar, not a visual language, not typography. It is the grammar governing how human understanding is composed, preserved, and transferred. Every experience across PosterityOS speaks this grammar.

Founding belief#

Understanding has structure. Good stewardship preserves that structure.

Where it sits#

PosterityOS Constitution   →  WHAT the system is
Human Stewardship Guides   →  HOW responsible people build it
Stewardship Pattern Lang.  →  WHICH recurring human situations recur
Grammar of Stewardship     →  the language every experience is composed from
Product Architecture       →  which compositions each product speaks
Implementation             →  how each product speaks them

Foundation (v1.0, ratified 2026-07-13)#

• 15 elements: Purpose, Context, Invitation, Question, Perspective, Evidence, Rationale, Decision, Contribution, Reflection, Continuity, Memory, Understanding, Capability, Posterity.
• 6 ordering rules: Purpose → Context → Understanding → Contribution → Decision → Continuity → Posterity.
• 6 composition invariants: rationale beside decision, questions open understanding, memory is preserved understanding, continuity survives interruption, capability is the outcome, posterity is capability across time.
• 9 non-ordering relationships: support / produces / belongs-with.
• 7 validation checks for any composition.

Constitutional guarantees#

• Ratified elements and rules are frozen. Refinements land in the Grammar history log.
• Products may introduce new concepts; products may not contradict the grammar. Deviations require explicit constitutional justification recorded in history.
• No UI, code, or technology vocabulary appears anywhere.

Location#

• Modules: src/platform/stewardship/grammar/
• Tests: src/test/stewardship-grammar.test.ts
• Docs: docs/hsg/grammar-*.md