tools tier

`tools-artifact-scaffold`

Sprint/story artifact generator: allocates the next sprint number from a git-tracked registry (monotonic, no duplicates), writes docs/userstories/sprint-NNNN-<slug>.md with typed YAML front matter + named prose slots, and measures existing files for grammar/schema drift (US-3.96.7).

Sprint/story artifact generator: allocates the next sprint number from a git-tracked registry (monotonic, no duplicates), writes docs/userstories/sprint-NNNN-<slug>.md with typed YAML front matter + named prose slots, and measures existing files for grammar/schema drift (US-3.96.7).

Tier	tools
Role	unclassified (baselined)
Path	`crates/tools/artifact-scaffold`
Edition	2021
Targets	tools-artifact-scaffold, tools_artifact_scaffold
Public items	16 across 0 modules
Tests	17

What it is for

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI fills slots." Two halves:

new_story: allocates the next sprint number from a git-tracked

registry (docs/reference/sprint-number-registry.txt, monotonic -- read the current NEXT-TO-ALLOCATE value, write back current+1), and writes docs/userstories/sprint-<N>-<slug>.md with typed YAML front matter + named prose-slot headings (empty, for an AI/operator to fill -- this crate creates structure, never content). Filename carries identity only (the sprint number + a human-readable slug); state (status, dates) lives in the front matter, never re-derived from or encoded into the filename.

check: measures EXISTING docs/userstories/*.md files for

grammar/schema drift -- missing/malformed front matter, and a sprint number (parsed from the FILENAME, since most existing files predate front matter entirely) shared by more than one file. Existing files are counted, never renamed or rewritten.

Deliberately dependency-free path-walking: check reads docs/userstories/ directly via std::fs::read_dir rather than shelling out to git ls-files -- this crate has no existing git-tracked-walk helper of its own (that's tools-org-knowledge::corpus::walk, a different crate), and a plain directory listing is the AC's own framing ("GIVEN existing docs/userstories files").

Capabilities

`crate root`

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI

Item
`pub const TEMPLATE_REGISTRY_MAX_BYTES: u64`
`fn slugify(title : & str) -> String`
`fn render_story_markdown(front_matter : & StoryFrontMatter, sections : & TemplateSection,) -> Result <String, ScaffoldError>`
`pub const REGISTRY_PATH: & str`
`fn sprint_number_from_filename(file_name : & str) -> Option <String>`
`fn extract_status_line(text : & str) -> Option <& str>`

`CheckReport`

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI

Item
`pub struct CheckReport`
`CheckReport :: fn as_metrics(& self) -> Vec <(& 'static str, usize)>`
`fn check(repo_root : & Path) -> std::io::Result <CheckReport>`

`ScaffoldError`

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI

Item
`pub enum ScaffoldError`
`fn load_template_registry(repo_root : & Path) -> Result <Vec <TemplateSection>, ScaffoldError>`
`fn new_story(repo_root : & Path, title : & str, today : & str) -> Result <PathBuf, ScaffoldError>`

`StatusCategory`

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI

Item
`pub enum StatusCategory`
`StatusCategory :: fn as_str(self) -> & 'static str`
`fn classify_status(line : Option <& str>) -> StatusCategory`

`StoryFrontMatter`

US-3.96.7: artifact scaffolder -- "the harness creates the object, AI

Item
`pub struct StoryFrontMatter`

How to use it

No examples/ target and no doctest in this crate's rustdoc. The tests listed under Verification are the closest executable usage.

Module structure

No public modules: the crate root is its whole surface.

Public surface

`crate root`

Item	What it is
`pub const TEMPLATE_REGISTRY_MAX_BYTES: u64`	The template registry is a few kilobytes; anything past this is not it.
`pub struct StoryFrontMatter`	Typed YAML front matter for a scaffolded story doc
`pub enum ScaffoldError`	—
`fn slugify(title : & str) -> String`	Lowercase, ASCII-alnum-run slug: non-alphanumeric runs become one `-`, leading/trailing `-` trimmed
`fn render_story_markdown(front_matter : & StoryFrontMatter, sections : & TemplateSection,) -> Result <String, ScaffoldError>`	Render a scaffolded story doc: YAML front matter + named, empty prose slots matching Gate 1's own required structure (user story, acceptance criteria, technical plan, tasks) -- this operationalizes an existing prose convention into something `check` can measure
`fn load_template_registry(repo_root : & Path) -> Result <Vec <TemplateSection>, ScaffoldError>`	Sprint 4.47 U21: the sections of a story document, read from the rendering of `story_template_section` that `corpus sprint-template-export` writes
`fn new_story(repo_root : & Path, title : & str, today : & str) -> Result <PathBuf, ScaffoldError>`	`tools-artifact-scaffold new story --title "<t>"`: allocate the next sprint number, render the doc, write it to `<repo_root>/docs/userstories/sprint-<N>-<slug>.md`, and persist the registry's advance
`pub const REGISTRY_PATH: & str`	Relative to the repo root: the git-tracked NEXT-TO-ALLOCATE registry.
`fn sprint_number_from_filename(file_name : & str) -> Option <String>`	`sprint` extracted from a `sprint-<N>-<slug>-sprint-doc.md` filename, if it matches that shape (`N` may contain `.`, never `-` -- the first `-` after the `sprint-` prefix always ends the number)
`pub struct CheckReport`	What one `check` pass found, as named metrics ("feeds `run_measurement` via `corpus audit`" -- US-3.96.6/3.96.8's job to persist these, not this crate's).
`pub enum StatusCategory`	Mechanical classification of a userstory's free-text `Status:` line
`StatusCategory :: fn as_str(self) -> & 'static str`	—
`fn extract_status_line(text : & str) -> Option <& str>`	Extract the first `Status:`-prefixed line's text, if present
`fn classify_status(line : Option <& str>) -> StatusCategory`	Classify one `Status:` line's text by keyword match, checked in this priority order (a line naming both "done" and "planned" -- e.g
`CheckReport :: fn as_metrics(& self) -> Vec <(& 'static str, usize)>`	`(metric_name, value)` pairs, the exact shape `corpus audit` forwards into `run_measurement` (US-3.96.8).
`fn check(repo_root : & Path) -> std::io::Result <CheckReport>`	Measure every `<repo_root>/docs/userstories/*.md` file

Re-exports. Exported here, defined elsewhere.

Export	Defined in
`{TemplateSection,TEMPLATE_REGISTRY_PATH}`	`operations_control_plane::story::{TemplateSection,TEMPLATE_REGISTRY_PATH}`

Boundary

Reaches into operations.

Shares tier tools with 84 other crates: tools-advisory-reach, tools-archive-guard, tools-ask-ai-core, tools-ask-ais, tools-ask-gemini, tools-book, tools-book-report, tools-boundary-scan, … (84 total).

_What this crate deliberately does NOT own is a judgment. No committed registry records one for it, so none is stated here._

Where it sits

Tier (ontology)	`tools`
Architectural role (taxonomy)	`unclassified (baselined)`
Location	`crates/tools/artifact-scaffold`
Vocabulary in force (lexicon)	`current`

Tier flow. Which tiers this crate's own edges cross.

flowchart LR
  n_tools["tools"] --> n_operations["operations"]

Dependencies

Runtime, in this workspace.

Crate	Tier	Optional	Only on
`operations-control-plane`	operations	no	always

Runtime, from outside the workspace.

Crate	Requirement	Features	Optional	Only on
`chrono`	`^0.4`	`serde`	no	always
`clap`	`^4`	`derive`	no	always
`serde`	`^1`	`derive`, `derive`	no	always
`serde_json`	`^1`	—	no	always
`serde_yaml`	`^0.9`	—	no	always
`thiserror`	`^2`	—	no	always

Development, in this workspace.

Crate	Tier	Optional	Only on
`tools-cli-conformance`	tools	no	always

Build. None.

Depended on by. 1 workspace crate.

Signal flow — what reaches this crate, and what it reaches.

flowchart LR
  n_tools_corpus["tools-corpus"] -->|uses| SELF
  SELF["tools-artifact-scaffold"]
  SELF -->|development| n_tools_cli_conformance["tools-cli-conformance"]
  SELF -->|runtime| n_operations_control_plane["operations-control-plane"]
  classDef self fill:#1f883d,stroke:#1f883d,color:#fff;
  class SELF self;

Feature flags

No Cargo features are defined: every capability is unconditional, so no consumer can receive a half-wired crate.

Targets

Kind	Name	Source
bin	`tools-artifact-scaffold`	`src/main.rs`
lib	`tools_artifact_scaffold`	`src/lib.rs`

Error model

Error type	Named by
`ScaffoldError`	`load_template_registry`, `new_story`, `render_story_markdown`

Operational characteristics

Property	Evidence
async public surface	none detected
async runtime	none detected
database access	none detected
network I/O	none detected
unsafe code	none detected
environment variables	none detected

No unsafe block, unsafe fn, unsafe impl or unsafe trait was found by the parser anywhere in this crate's source.

Configuration

No environment variable is read with a literal name anywhere in this crate. A variable whose key is computed at run time cannot be listed here, and is not claimed to be absent.

1 workspace crate depends on this one: tools-corpus.

Verification

Kind	Count
Unit tests	17
Integration tests	0
Examples	0
Doctests	0

Evidence by module. How often each public module is named by something executable.

Module	Tests	Examples	Consumers
`crate root`	14	0	2

What the tests establish, by name:

a_malformed_template_registry_is_refused_by_line — src/lib.rs
allocate_and_new_story_end_to_end_on_a_temp_tree — src/lib.rs
as_metrics_names_are_stable — src/lib.rs
check_categorizes_status_lines_mechanically — src/lib.rs
check_counts_missing_and_malformed_front_matter_and_duplicates — src/lib.rs
classify_status_matches_keywords_in_priority_order — src/lib.rs
extract_front_matter_finds_the_block — src/lib.rs
extract_front_matter_none_without_leading_fence — src/lib.rs
extract_status_line_finds_the_bold_prefixed_line — src/lib.rs
new_story_refuses_to_overwrite_an_existing_file — src/lib.rs
new_story_refuses_without_the_template_registry_and_names_the_export — src/lib.rs
parse_registry_accepts_major_dot_minor — src/lib.rs
render_story_markdown_prints_the_registry_sections_in_order_with_their_slots — src/lib.rs
slugify_empty_input_is_empty — src/lib.rs
slugify_lowercases_and_collapses_punctuation — src/lib.rs
sprint_number_from_filename_stops_at_first_dash_after_prefix — src/lib.rs
cli_definition_conforms — src/main.rs

Documentation coverage

Measure	Documented	Total
Public items with rustdoc	14	16
Public modules with a `//!` block	0	0

pie showData
    title Public items with rustdoc
    "Documented" : 14
    "No rustdoc detected" : 2

Metrics

Metric	Value
Rust source files	2
Source lines	1101
Code lines	862
Public API items	16
Public modules	0
Tests	17
Examples	0
Cargo features	0
Direct runtime dependencies	7
Workspace reverse dependencies	1

pie showData
    title Public API by kind
    "constant" : 2
    "enum" : 2
    "function" : 8
    "method" : 2
    "struct" : 2

pie showData
    title Rust source composition
    "Code" : 862
    "Blank or comment" : 239

Generation

Rendered by tools-corpus corpus readme from repository evidence alone, renderer schema 2, lexicon current. No model, network service or database was consulted. Regenerate with tools-corpus corpus readme --write; verify with --check.

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