name

description	Scaffold custom H·AI·K·U artifacts — studios, stages, hats, and provider overrides
user-invocable	true
argument-hint	<type> <name> [parent] [grandparent]
allowed-tools	["Read","Write","Bash","Glob","Grep","AskUserQuestion"]

H·AI·K·U Scaffold

Name

haiku:scaffold — Generate directory structure and template files for custom H·AI·K·U artifacts.

Synopsis

/haiku:scaffold studio <name>
/haiku:scaffold stage <studio> <stage-name>
/haiku:scaffold hat <studio> <stage> <hat-name>
/haiku:scaffold review-agent <studio> <stage> <agent-name>
/haiku:scaffold provider <type>

Description

Creates the correct directory structure and template files for custom artifacts under .haiku/. All generated files include the proper frontmatter schema, ready to fill in.

---

Implementation

Step 0: Parse Arguments

Parse the first argument as the artifact type. Remaining arguments depend on the type:

Type	Required Args	Example
studio	<name>	/haiku:scaffold studio data-pipeline
stage	<studio> <stage-name>	/haiku:scaffold stage data-pipeline validation
hat	<studio> <stage> <hat-name>	/haiku:scaffold hat data-pipeline validation reviewer
review-agent	<studio> <stage> <agent-name>	/haiku:scaffold review-agent software development security
provider	<type>	/haiku:scaffold provider jira

If no arguments are provided, ask the user what they want to create using AskUserQuestion:

{
  "questions": [{
    "question": "What would you like to scaffold?",
    "options": ["Studio", "Stage", "Hat", "Review Agent", "Provider override"]
  }]
}

Then ask follow-up questions for the required names.

Step 1: Validate

• Studio name: kebab-case, no special characters
• Stage name: kebab-case, no special characters
• Hat name: kebab-case, no special characters
• Provider type: must be a known provider type (jira, linear, github-issues, gitlab-issues, notion, confluence, google-docs, figma, slack, teams, discord)

Check if the artifact already exists. If it does, warn the user and ask whether to overwrite.

Step 2: Scaffold by Type

Studio

Create:

.haiku/studios/{name}/STUDIO.md
.haiku/studios/{name}/stages/

STUDIO.md template:

---
name: {name}
description: TODO — describe this studio's purpose
stages: []
persistence:
  type: git
  delivery: pull-request
---

# {Name} Studio

Describe the lifecycle this studio supports and when to use it.

## Stage Pipeline

Add stages to the `stages` list above, then scaffold each one:

/haiku:scaffold stage {name}

Stage

Verify the parent studio exists at .haiku/studios/{studio}/STUDIO.md or plugin/studios/{studio}/STUDIO.md. If neither exists, error.

Create:

.haiku/studios/{studio}/stages/{stage}/STAGE.md
.haiku/studios/{studio}/stages/{stage}/hats/
.haiku/studios/{studio}/stages/{stage}/review-agents/

STAGE.md template:

---
name: {stage}
description: TODO — describe what this stage accomplishes
hats: []
review: ask
unit_types: []
inputs: []
review-agents-include: []
---

## Criteria Guidance

TODO — examples of good and bad completion criteria for this stage.

## Completion Signal

TODO — describe the conditions under which this stage is done.

Remind the user to:

1. Add hat files in the hats/ directory
2. Add review agent files in the review-agents/ directory
3. Add this stage name to the parent studio's stages list
4. If this stage should verify upstream work, add entries to review-agents-include

Hat

Verify the parent stage exists at .haiku/studios/{studio}/stages/{stage}/STAGE.md or plugin/studios/{studio}/stages/{stage}/STAGE.md. If neither exists, error.

Create:

.haiku/studios/{studio}/stages/{stage}/hats/{hat}.md

Hat template:

**Focus:** TODO — describe this hat's core responsibility and what it concentrates on.

**Produces:** TODO — describe artifacts or outputs this hat creates.

**Reads:** TODO — describe inputs this hat consumes.

**Anti-patterns:**
- TODO — common mistakes to avoid

Remind the user to add this hat name to the parent stage's hats list.

Review Agent

Verify the parent stage exists at .haiku/studios/{studio}/stages/{stage}/STAGE.md or plugin/studios/{studio}/stages/{stage}/STAGE.md. If neither exists, error.

Create:

.haiku/studios/{studio}/stages/{stage}/review-agents/{agent}.md

Review agent template:

---
name: {agent}
stage: {stage}
studio: {studio}
---

**Mandate:** TODO — describe what this review agent checks and why.

**Check:**
- TODO — specific verification items

Remind the user that:

• The agent will run during this stage's adversarial review (step 4.3)
• To also run this agent in downstream stages, add it to those stages' review-agents-include field

Provider Override

Read the built-in provider instructions from ${CLAUDE_PLUGIN_ROOT}/providers/{category}.md where {category} is resolved from the provider type:

Type	Category
jira, linear, github-issues, gitlab-issues	ticketing
notion, confluence, google-docs	spec
figma, canva, penpot, excalidraw	design
slack, teams, discord	comms

Create:

.haiku/providers/{type}.md

Pre-populate with the built-in defaults as a starting template:

---
category: {category}
description: Project-specific {type} instructions
---

{body of built-in default}

Step 3: Summary

Display what was created:

Created {type}: .haiku/studios/{path}/

Files:
  - .haiku/studios/{path}/STUDIO.md
  - .haiku/studios/{path}/stages/ (empty, ready for stages)

Next steps:
  - Edit the STUDIO.md to fill in description and stages
  - Run /haiku:scaffold stage {name} <stage-name> to add stages

Adjust the summary for each artifact type.

---

Error Handling

Scenario	Behavior
No arguments, no interactive input	Show usage help
Artifact already exists	Warn, ask to overwrite or skip
Parent doesn't exist (stage without studio, hat without stage)	Error with suggestion to scaffold the parent first
Invalid name (spaces, special chars)	Error with naming rules