Files
holocron/plugins/lint/skills/vale-config/references/configuration-reference.md
Defame1297 ca744d5d6c fix(vale-config): correct the missing-style failure mode
Gotcha 1 said a style in BasedOnStyles that is not built-in and not
already under StylesPath "finds nothing until vale sync fetches it — a
clean run is not proof anything linted". Reproduced against vale 3.15.2:
that case is a hard `E100 [loadStyles] style '<name>' does not exist on
StylesPath`, exit 2. Nothing is linted and nothing is silent.

Worse, the same commit deleted the Gotcha that was the actual diagnostic —
that Packages and BasedOnStyles are separate keys and a style lints only
once it is in both. So the surviving rule sent a reader staring at E100 to
run `vale sync`, which fetches only what Packages declares and reports
"Synced 0 package(s)" against a BasedOnStyles-only name. The remediation
loop did not terminate. Reproduced end to end.

The genuinely silent case is the reverse — declared in Packages and
synced, but absent from BasedOnStyles — and it is now the one labelled as
such. Testing also turned up that StylesPath must exist as a directory
even when Vale is the only style (E201, exit 2), which was documented
nowhere.

references/configuration-reference.md gains a seven-row resolution matrix,
each row backed by a fixture. Its Frontmatter Scopes section claimed
provenance from the vale.sh research corpus, which contains no frontmatter
material at all; it is house-verified and now says so under its own slug.

Issue #99's wave-3 comment recorded this defect as found and repaired. It
was not — the file was byte-identical to the commit that introduced it, so
nothing here was treated as already correct.

Refs #99
2026-08-30 20:51:32 +00:00

108 lines
5.2 KiB
Markdown

---
topic: configuration-reference
source_keys:
- context7-websites-vale-sh
- house-vale-3-15-2-repro
---
## Core Settings
| Key | Type | Purpose |
|---|---|---|
| `StylesPath` | string | Path to all Vale-related resources (styles, dictionaries, vocab). |
| `Packages` | string[] | Packages to download and install via `vale sync`. |
| `Vocab` | string[] | Vocabularies to load. |
| `MinAlertLevel` | enum | Minimum severity to report: `suggestion`, `warning`, or `error`. |
| `IgnoredScopes` | enum | Inline-level HTML tags to ignore. |
| `SkippedScopes` | enum | Block-level HTML tags to ignore entirely. |
## Format Associations
Map an unrecognized extension onto a supported one so Vale lints it with the right parser — an extension-level substitution only, it does not add new file-type support:
```ini
[formats]
mdx = md
```
## Vocabularies
Reference a named vocabulary (a folder of accept/reject word lists under `StylesPath`) via `Vocab`, then apply styles per glob:
```ini
StylesPath = styles
Vocab = Blog
[*]
BasedOnStyles = Vale, MyStyle
```
## Local Overrides
A project can layer a local `.vale.ini` that overrides `StylesPath`, adds packages, and changes `BasedOnStyles` for a subset of files — local settings merge with or override the global ones:
```ini
StylesPath = localpath
Packages = write-good
[*.md]
BasedOnStyles = write-good
```
## Rule Header Fields
Individual rule YAML files (under a style's directory) support these header fields:
| Field | Required | Default | Purpose |
|---|---|---|---|
| `extends` | yes | — | Check this rule extends (e.g. `existence`). |
| `message` | yes | — | Message shown when triggered; supports `%s` formatting per check type. |
| `level` | no | `suggestion` | Severity: `suggestion`, `warning`, or `error`. |
| `scope` | no | `text` | Scope the rule applies to (e.g. `heading`). |
| `link` | no | — | URL with more info about the rule. |
| `limit` | no | — | Max number of triggers per file. |
| `vocab` | no | `true` | Set `false` to disable active vocabularies for this rule. |
## Checks
The underlying functions a rule's `extends` field can reference: `existence`, `substitution`, `occurrence`, `repetition`, `consistency`, `conditional`, `capitalization`, `metric`, `spelling`, `sequence`, `script`.
## Style Resolution
Only *package* styles need fetching. A style whose YAML rule files are already committed under `StylesPath` lints immediately, with no `Packages` entry and no `vale sync`; the same is true of the built-in `Vale` style, which ships with the binary and contains four rules:
- `Vale.Spelling` — spell-checks against Hunspell-compatible dictionaries in `<StylesPath>/config/dictionaries`.
- `Vale.Terms` — enforces the project's accepted vocabulary terms.
- `Vale.Avoid` — enforces the project's rejected vocabulary terms.
- `Vale.Repetition` — flags repeated words (e.g. "the the").
`Packages` (top-level, what `vale sync` downloads) and `BasedOnStyles` (per-glob, what activates) are separate keys: a style lints a file only once it is in both. Every row below reproduced against Vale 3.15.2 (slug `house-vale-3-15-2-repro`):
| Configuration | Result |
|---|---|
| `BasedOnStyles` names a style with no directory under `StylesPath`, not built-in | `E100 [loadStyles] Runtime error` — `style 'X' does not exist on StylesPath`, exit 2 |
| `StylesPath` directory itself absent, even with only `Vale` active | `E201 Invalid value` — `The path '...' does not exist`, exit 2 |
| `vale sync` with a name in `BasedOnStyles` but not `Packages` | `SUCCESS Synced 0 package(s)`, exit 0, nothing downloaded — the next lint repeats the `E100` |
| `vale sync` with the name added to `Packages` | package lands under `StylesPath`, exit 0; lint then loads it |
| Style in `Packages` and synced, but in no glob's `BasedOnStyles` | 0 findings, exit 0 — downloads, never lints, indistinguishable from a clean run |
| `BasedOnStyles` names an *empty* directory under `StylesPath` | 0 findings, exit 0 — loads and lints nothing; `vale sync` never produces this state |
| Built-in `Vale`, or a style's YAML committed under `StylesPath` | lints immediately, no `Packages` entry, no sync |
## Frontmatter Scopes
House-verified behaviour, not documented on vale.sh — reproduced locally against Vale 3.15.2 (slug `house-vale-3-15-2-repro`).
A rule scoped to `text.frontmatter.<key>` (e.g. `text.frontmatter.description`) matches reliably when that field's value is a single physical line, and breaks on most — not all — multi-line forms. Multi-line forms spanning 2+ lines:
| Frontmatter value form | Result |
|---|---|
| Single physical line (control) | Lints, exits 1 |
| `\|` literal block scalar | Lints, exits 1 |
| `>` folded block scalar | 0 findings, exits 0 |
| Plain (unquoted) continuation lines | 0 findings, exits 0 |
| Single- or double-quoted multi-line scalar | 0 findings, exits 0 |
The silent cases produce no error of any kind, so a passing run is indistinguishable from a clean one. Do not assume a literal block scalar and a folded one behave alike — reproduce both against your own config before trusting a frontmatter-scoped rule in production. If the field is commonly authored in one of the broken forms, flatten it to one physical line ahead of the `vale` call rather than relying on the scope alone.