docs: entrance accuracy pass and remove root fingerprint

.changeset/docs-entrance-accuracy-pass.md

@@ -0,0 +1,5 @@
+---
+"@design-intelligence/ghost": patch
+---
+
+Refresh the entrance docs: accurate skeleton/body init descriptions, a documented `ghost export`, and plainer language on the welcome path.

CLAUDE.md

@@ -91,6 +91,7 @@ edits and checks.
 | `packages/ghost` | yes: `@design-intelligence/ghost` | The public package. Ships the `ghost` CLI, node authoring, corpus validation, gather/pull/pulse, review packet assembly, and the unified skill bundle. Shared runtime lives in `packages/ghost/src/ghost-core`. |
 | `packages/vessel-react` | no | A standalone shadcn component registry plus `vessel-mcp` MCP server: the opinionated default reference body. Design-system-agnostic; nothing in Ghost requires it. |
 | `packages/vessel-light` | no | Vessel's design language as a portable `.ghost/` fingerprint package for agents writing raw HTML/CSS. No build, no dependencies. |
+| `packages/steering-eval` | no | Before/after evaluation harness: measures what handing an agent a `.ghost` fingerprint buys, as a deterministic `report.html`. |
 | `apps/docs` | no | Docs site. |
 
 ## CLI Commands
@@ -99,13 +100,14 @@ Core workflow:
 
 | Command | Description |
 | --- | --- |
-| `ghost init` | Scaffold `.ghost/` with a manifest, starter glossary, and a starter `index.md`. `--with checks` also adds the checks directory. |
+| `ghost init` | Scaffold `.ghost/` with the skeleton starter: manifest, glossary, `index.md`, grammar nodes, and unanswered signature dials. `--template minimal` writes only the manifest/glossary/index starter; `--body vessel-light` installs a full inhabited fingerprint instead. `--with checks` also adds the checks directory. |
 | `ghost checks init` | Scaffold `.ghost/checks/` with an example review assertion. |
 | `ghost validate` | Validate the package: manifest shape, node validity, material locators, check references, and glossary kind prefixes. |
 | `ghost gather [ask…]` | Emit the fingerprint menu for the agent to select from. |
 | `ghost pull <id> [<id>…]` | Emit selected nodes' bodies and materials; append the selection to the local `.ghost/.events` tape. |
 | `ghost review` | Emit an advisory review packet for a diff using material-backed nodes and checks (requires `.ghost/checks/`). |
 | `ghost pulse` | Summarize local gather/pull events from `.ghost/.events`. |
+| `ghost export` | Package the fingerprint as a portable tarball with a materials audit (`--strict` fails on stranded locators). |
 | `ghost skill install` | Install the unified `ghost` skill bundle. |
 
 Advanced/maintenance:
@@ -151,6 +153,14 @@ Use `patch` for fixes and docs, `minor` for new commands/flags/exports, and
 
 ## Conventions
 
+- Shipped prose is plain, precise, restrained, and product-minded. When
+  completeness and compactness compete, compactness wins; link out for depth.
+  Concrete over aspirational: name the decision a truth forces, not the value
+  it serves. Teach terms by worked example before defining them. No em dashes,
+  no brand-deck filler, no exclamation points. `scripts/check-terminology.mjs`
+  enforces the retired-vocabulary list; run `pnpm check:terminology` before
+  pushing, and when renaming a concept, retire the old word everywhere in the
+  same change and add it to the forbidden list.
 - Keep publishable runtime code self-contained in `packages/ghost`; no
   `workspace:*` runtime dependencies in the packed public artifact.
 - The canonical on-disk form is a flat `.ghost/` package: `manifest.yml` plus

CONTRIBUTING.md

@@ -1,17 +1,19 @@
 # Contributing to Ghost
 
-Ghost is pre-1.0 and moving fast. This doc is organized around what gets a
-PR declined, because that's the information you actually need. Everything
-below is enforced — by review, by CI, or both.
+Contributions are welcome: fixes, docs, dogfooding reports, and friction you
+hit as a user are all valuable. Ghost is pre-1.0 and moving fast, so this doc
+is organized around what gets a PR declined, because that's the information
+you need. Everything below is enforced by review, by CI, or both.
 
 ## Invariants
 
 These are project-defining. A PR that violates one gets declined regardless
 of quality elsewhere.
 
 1. **The CLI computes; it never decides.** No LLM calls in the CLI, ever.
-   Ghost is BYOA: the host agent does all interpretive work. The CLI's value
-   is determinism — same input, same output, no key required.
+   Ghost is BYOA (bring your own agent): the host agent does all interpretive
+   work. The CLI's value is determinism: same input, same output, no key
+   required.
 2. **The fingerprint corpus stays flat.** No hierarchy, no inheritance, no
    edges between nodes. A node's identity is its filename; its kind is a
    glossary-declared prefix. Altitude lives in prose, not structure.
@@ -26,12 +28,12 @@ of quality elsewhere.
 `scripts/check-terminology.mjs` fails CI on banned phrasings. The script is
 the source of truth; these are the clusters and their reasons:
 
-- **The "memory" compounds.** Ghost holds nothing — an agent holds nothing it
+- **The "memory" compounds.** Ghost holds nothing; an agent holds nothing it
   isn't handed. The fingerprint is a steering packet, not recall.
 - **The "judg-" words.** The CLI computes; the host agent decides. Review
   output is advisory.
-- **Product-UI-centric framing.** Ghost is brand through every medium —
-  screens, emails, empty states, sentences — so phrases that anchor it to
+- **Product-UI-centric framing.** Ghost is brand through every medium
+  (screens, emails, empty states, sentences), so phrases that anchor it to
   product UI alone are banned.
 - **Bare next-major version markers.** No speculative roadmap language in
   the tree.
@@ -48,7 +50,7 @@ the list.
 - Added, removed, or renamed a CLI command or flag? Run `pnpm dump:cli-help`
   and commit the regenerated manifest, or the drift check declines for you.
 - **Changesets:** `@design-intelligence/ghost` is the only public
-  package. Write the changeset file yourself — `patch` for fixes and docs,
+  package. Write the changeset file yourself: `patch` for fixes and docs,
   `minor` for new commands/flags/exports, `major` for removed or renamed
   public behavior. One sentence, user-facing, present tense.
 
@@ -57,7 +59,7 @@ the list.
 Surfaces in this repo carry their own fingerprints: `apps/docs/.ghost` and
 `packages/vessel-react/.ghost`. If you touch a surface, `ghost gather` from its
 fingerprint before you build, and expect review against it. This is where
-you experience Ghost as a user — treat friction you hit here as a bug worth
+you experience Ghost as a user; treat friction you hit here as a bug worth
 reporting.
 
 ## Governance