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PromptScript API


Abstract Class: BaseFormatter

Defined in: formatters/src/base-formatter.ts:23

Abstract base formatter with common helper methods. Extend this class to create new formatter implementations.

Extended by

Implements

Constructors

Constructor

new BaseFormatter(): BaseFormatter

Returns

BaseFormatter

Properties

defaultConvention

abstract readonly defaultConvention: string

Defined in: formatters/src/base-formatter.ts:27

Default convention for this formatter

Implementation of

Formatter.defaultConvention


description

abstract readonly description: string

Defined in: formatters/src/base-formatter.ts:26

Human-readable description

Implementation of

Formatter.description


name

abstract readonly name: string

Defined in: formatters/src/base-formatter.ts:24

Unique formatter identifier

Implementation of

Formatter.name


outputPath

abstract readonly outputPath: string

Defined in: formatters/src/base-formatter.ts:25

Default output file path

Implementation of

Formatter.outputPath


standardsExtractor

protected readonly standardsExtractor: StandardsExtractor

Defined in: formatters/src/base-formatter.ts:33

Shared standards extractor for consistent extraction across all formatters.


CONTEXT_RENDERED_KEYS

protected readonly static CONTEXT_RENDERED_KEYS: ReadonlySet\<string>

Defined in: formatters/src/base-formatter.ts:242

@context keys that already have a dedicated rendering path. Anything outside this set is generic and must be surfaced by the context section.

Methods

appendGenericStandardItems()

protected appendGenericStandardItems(items, props, knownKeys): void

Defined in: formatters/src/base-formatter.ts:361

Append generic Label: value items for standards keys not handled by the known-key rendering in a section method. Keeps custom

Parameters

items

string[]

props

Record\<string, Value>

knownKeys

ReadonlySet\<string>

Returns

void

Standards

keys (git/config/documentation/diagrams) visible in monolith output. Skips null/undefined/false; renders bare labels for true.


contextArchitectureProperty()

protected contextArchitectureProperty(ast): string | null

Defined in: formatters/src/base-formatter.ts:262

Read the architecture property of @context. Used as a fallback for sources that declare architecture as a property rather than as an ## Architecture heading inside the block text.

Parameters

ast

Program

Returns

string | null


contextPropertyItems()

protected contextPropertyItems(ast, alsoRenderedKeys?): string[]

Defined in: formatters/src/base-formatter.ts:275

Render @context properties that no dedicated section consumes as Label: value items, so structured context is never silently dropped.

Parameters

ast

Program

alsoRenderedKeys?

readonly string[] = []

Returns

string[]


createRenderer()

protected createRenderer(options?): ConventionRenderer

Defined in: formatters/src/base-formatter.ts:39

Create a convention renderer for this formatter. Uses the provided convention from options or falls back to the default.

Parameters

options?

FormatOptions

Returns

ConventionRenderer


dedent()

protected dedent(text): string

Defined in: formatters/src/base-formatter.ts:671

Remove common leading whitespace from all lines (dedent). Handles the case where trim() was already called, causing the first line to lose its indentation while subsequent lines retain theirs. Calculates minimum indent from lines 2+ only.

Parameters

text

string

Returns

string


documentationItem()

protected documentationItem(value, defaultText): string | null

Defined in: formatters/src/base-formatter.ts:346

Resolve a documentation-standard entry that accepts either a boolean flag or author-supplied prose. A string value is authoritative and replaces the target's default phrasing, so authored text is never silently discarded.

Parameters

value

Value | undefined

defaultText

string

Returns

string | null


extractContextTechStackItems()

protected extractContextTechStackItems(props): string[]

Defined in: formatters/src/base-formatter.ts:308

Collect @context tech-stack entries from every supported shape: an explicit techStack list plus the languages/runtime/monorepo properties.

Parameters

props

Record\<string, Value>

Returns

string[]


extractExamples()

protected extractExamples(ast): object[]

Defined in: formatters/src/base-formatter.ts:818

Extract examples from the

Parameters

ast

Program

Returns

object[]

Examples

block. Returns an array of example definitions with name, input, output, and optional description.


extractSectionWithCodeBlock()

protected extractSectionWithCodeBlock(text, header): string | null

Defined in: formatters/src/base-formatter.ts:395

Safe extraction of a section that contains a header + content + code block + content Avoids ReDoS by using string search instead of backtracking regex. Matches pattern: Header ... ...

Parameters

text

string

string

Returns

string | null


extractSkillExamples()

protected extractSkillExamples(skillProps): object[]

Defined in: formatters/src/base-formatter.ts:831

Extract examples from a skill's nested examples property. Returns the same shape as extractExamples.

Parameters

skillProps

Record\<string, Value>

Returns

object[]


extractText()

protected extractText(content): string

Defined in: formatters/src/base-formatter.ts:74

Extract text from block content.

Parameters

content

BlockContent

Returns

string


findBlock()

protected findBlock(ast, name): Block | undefined

Defined in: formatters/src/base-formatter.ts:67

Find a block by name, ignoring internal blocks (starting with __).

Parameters

ast

Program

name

string

Returns

Block | undefined


format()

abstract format(ast, options?): FormatterOutput

Defined in: formatters/src/base-formatter.ts:28

Transform AST to tool-specific format

Parameters

ast

Program

options?

FormatOptions

Returns

FormatterOutput

Implementation of

Formatter.format


formatArray()

protected formatArray(arr): string

Defined in: formatters/src/base-formatter.ts:125

Format an array as comma-separated string.

Parameters

arr

unknown[]

Returns

string


formatStandardsList()

protected formatStandardsList(items): string[]

Defined in: formatters/src/base-formatter.ts:117

Format standards list from array of values (pass-through). Returns array of strings for rendering as bullet list.

Parameters

items

Value

Returns

string[]


getArrayElements()

protected getArrayElements(content): Value[]

Defined in: formatters/src/base-formatter.ts:149

Extract array elements from block content.

Parameters

content

BlockContent

Returns

Value[]


getBlockArrayElements()

protected getBlockArrayElements(block): Value[]

Defined in: formatters/src/base-formatter.ts:172

Parameters

block

Block

Returns

Value[]


getMetaField()

protected getMetaField(ast, key): string | undefined

Defined in: formatters/src/base-formatter.ts:139

Get meta field value as string.

Parameters

ast

Program

key

string

Returns

string | undefined


getOutputPath()

protected getOutputPath(options?): string

Defined in: formatters/src/base-formatter.ts:60

Get the output path, respecting options override.

Parameters

options?

FormatOptions

Returns

string


getPrettierOptions()

protected getPrettierOptions(options?): Required\<PrettierMarkdownOptions>

Defined in: formatters/src/base-formatter.ts:50

Get resolved Prettier options, merging provided options with defaults.

Parameters

options?

FormatOptions

Returns

Required\<PrettierMarkdownOptions>


getProp()

protected getProp(content, key): Value | undefined

Defined in: formatters/src/base-formatter.ts:88

Get a specific property from block content.

Parameters

content

BlockContent

key

string

Returns

Value | undefined


getProps()

protected getProps(content): Record\<string, Value>

Defined in: formatters/src/base-formatter.ts:102

Get all properties from block content.

Parameters

content

BlockContent

Returns

Record\<string, Value>


getSkillBasePath()

getSkillBasePath(): string | null

Defined in: formatters/src/base-formatter.ts:879

Base path for skills, or null if formatter has no skill support.

Returns

string | null

Implementation of

Formatter.getSkillBasePath


getSkillFileName()

getSkillFileName(): string | null

Defined in: formatters/src/base-formatter.ts:884

Skill file name, or null if formatter has no skill support.

Returns

string | null

Implementation of

Formatter.getSkillFileName


humanizeLabel()

protected humanizeLabel(value): string

Defined in: formatters/src/base-formatter.ts:381

Convert a camelCase/kebab-case key into a human-readable label.

Parameters

value

string

Returns

string


isSafeName()

protected isSafeName(name): boolean

Defined in: formatters/src/base-formatter.ts:918

Check if a name is safe for use in file paths. Rejects path traversal sequences and path separators.

Parameters

name

string

Returns

boolean


isSafeSkillName()

protected isSafeSkillName(name): boolean

Defined in: formatters/src/base-formatter.ts:931

Check if a skill name is safe for use in file paths.

Parameters

name

string

Returns

boolean


normalizeMarkdownForPrettier()

protected normalizeMarkdownForPrettier(content): string

Defined in: formatters/src/base-formatter.ts:423

Normalize markdown content to match Prettier formatting. - Strips common leading indentation from lines - Trims trailing whitespace from lines - Normalizes markdown table formatting - Adds blank lines before lists when preceded by text - Adds blank lines before code blocks when preceded by text - Escapes markdown special characters in paths

Parameters

content

string

Returns

string


normalizeOutputDir()

protected normalizeOutputDir(dir): string

Defined in: formatters/src/base-formatter.ts:704

Normalize a user-provided output directory (from @use ... into "<path>" or skillTargets config) to a safe forward-slash relative path. Rejects .., . and leading slashes so the result can be appended to a target's dot-directory without escaping it.

Parameters

dir

string

Returns

string


referenceProvenance()

protected referenceProvenance(sourcePath): string

Defined in: formatters/src/base-formatter.ts:910

Generate a provenance comment for a reference file.

Parameters

sourcePath

string

Returns

string


referencesMode()

referencesMode(): "none" | "directory" | "inline"

Defined in: formatters/src/base-formatter.ts:894

How this formatter handles skill references. - 'directory': emit as separate files in references/ subdirectory - 'inline': append as sections in the main output file - 'none': references not supported

Returns

"none" | "directory" | "inline"

Implementation of

Formatter.referencesMode


renderCodeFence()

protected renderCodeFence(content, lang?): string

Defined in: formatters/src/base-formatter.ts:939

Render content inside a code fence, using a longer fence if the content itself contains triple backticks (prevents code fence injection).

Parameters

content

string

lang?

string = ''

Returns

string


renderExamplesSection()

protected renderExamplesSection(ast, renderer, sectionName?): string | null

Defined in: formatters/src/base-formatter.ts:847

Render an examples section from the

Parameters

ast

Program

renderer

ConventionRenderer

sectionName?

string = 'Examples'

Custom section heading name (default: 'Examples')

Returns

string | null

Examples

block. Shared rendering logic used by Claude, GitHub, and MarkdownInstructionFormatter.


resolveSkillDir()

protected resolveSkillDir(defaultSkillBasePath, skillName, outputDir?, options?): string

Defined in: formatters/src/base-formatter.ts:734

Resolve the directory for a generated skill, respecting per-target skill base overrides while preserving existing @use ... into behavior.

Parameters

defaultSkillBasePath

string

skillName

string

outputDir?

string

options?

FormatOptions

Returns

string


sanitizeResourceFiles()

protected sanitizeResourceFiles(resources, targetDir): FormatterOutput[]

Defined in: formatters/src/base-formatter.ts:768

Filter resource files to only include safe paths. Rejects paths with traversal, absolute paths, and unsafe names.

Parameters

resources

object[] | undefined

targetDir

string

Returns

FormatterOutput[]


shortcutSummary()

protected shortcutSummary(value, fallback?): string

Defined in: formatters/src/base-formatter.ts:219

Extract a stable one-line summary from any supported shortcut value.

Parameters

value

Value

fallback?

string = ''

Returns

string


shouldIncludeSkill()

protected shouldIncludeSkill(name, options?): boolean

Defined in: formatters/src/base-formatter.ts:723

Return true when the target configuration allows emitting the given skill.

Parameters

name

string

options?

FormatOptions

Returns

boolean


stripAllIndent()

protected stripAllIndent(content): string

Defined in: formatters/src/base-formatter.ts:567

Strip all leading indentation from markdown content. Used for AGENTS.md where content from multiple sources has inconsistent indentation. Preserves indentation inside code blocks.

Parameters

content

string

Returns

string


transformInjectedSkillContent()

transformInjectedSkillContent(content): string

Defined in: formatters/src/base-formatter.ts:903

Default pass-through for injected skill content. Formatters whose target tools restrict skill frontmatter (e.g. Factory AI) override this hook to filter unsupported fields before the compiler writes the file.

Parameters

content

string

Returns

string

Implementation of

Formatter.transformInjectedSkillContent


truncate()

protected truncate(str, max): string

Defined in: formatters/src/base-formatter.ts:132

Truncate string to max length with ellipsis.

Parameters

str

string

max

number

Returns

string


valueToString()

protected valueToString(value): string

Defined in: formatters/src/base-formatter.ts:199

Convert value to string representation.

Parameters

value

Value

Returns

string


yamlQuoted()

protected yamlQuoted(value): string

Defined in: formatters/src/base-formatter.ts:253

Escape a value for use inside a double-quoted YAML scalar.

Parameters

value

string

Returns

string