I3134 — The product sentence is declared once, and the homepage, README, page titles, Open Graph and launch kit read it

○READY wave 0 · p2 · implementation profile · parallel safe

Part of a-visitor-understands-and-checks-majordomus — A first-time visitor of majordomus.dev understands what Majordomus does and can check every claim it makes.

Objective

Make the owner's chosen product sentence a field of the declared site copy, have scripts/generate-site-data read it instead of grepping README.md for '**A lightweight', render README's bold line and lead from it (or fail homepage-check when they differ), and close docs/HARDCODING_LEDGER.yaml row product-sentence-has-two-wordings.

Why

The owner's standing order of 2026-10-13 is that the landing page reflects and derives the positioning. Today the sentence a visitor reads depends on the door: the homepage hero (edited 2026-10-16, I2745) and the README's 'A lightweight supervisory control layer' disagree, and every page title follows the README by a grep. Proposed in ADR 0210 (The sentence that says what Majordomus is has one declaration, and every surface reads it) (proposed; it carries no authority until the owner accepts it). Sources: chatgpt-majordomus:c250#2, chatgpt-majordomus:c250#4, chatgpt-majordomus:c156#4, chatgpt-majordomus:c001#26, chatgpt-majordomus:c038#0.

Current state

scripts/generate-site-data:317 TAGLINE=grep '^\\*\\*A lightweight' README.md; site/templates/base.html:27-51 use project.tagline for title, description and og:description; site/data/marketing.toml [hero] title/subtitle/lead; ledger row status open, recommended MOVE_TO_CANONICAL_DATA.

Desired state

One declaration; every reader derived; homepage-check holds README and titles to it.

Scope

• site/data/marketing.toml
• scripts/generate-site-data
• scripts/ci/homepage-check
• README.md
• docs/HARDCODING_LEDGER.yaml

Out of scope

• Choosing the wording; that is the owner's
• Rewriting the rest of the README

Dependencies

None. This issue is a root of the graph.

What waits on this

• I3135✕BLOCKED The launch kit is held by the same promise check as the homepage, and the tool publishes none of it

Acceptance criteria

• Changing the declared sentence changes the homepage, README bold line, every page title and og:description after one regeneration
• homepage-check fails when README states the sentence in other words
• The ledger row is closed with this issue's id

Validation

• scripts/generate-site-data --check
• scripts/ci/homepage-check
• scripts/site-check

Evidence required

• site_reads_one_sentence

Evidence

None recorded. Every token above needs a command or an artifact behind it before this issue can be completed; narrative is refused.

Timeline

started

—

verified

—

completed

—

Those three fields, the evidence above and the state of the dependencies are all the status is made of. There is no status field to disagree with them.

Canonical record: .ai/repo/project/issues/I3134.yaml. Read it back with majordomus plan show I3134.