Harness
Templates

Harness Templates

7 built-in templates. Add during npx buildcrew setup or individually:

npx buildcrew add <name>
TemplateDescriptionKey Agents
erdDatabase schema, relationships, indexes, RLSdeveloper, reviewer
architectureSystem overview, patterns, directory structuredeveloper, architect, investigator
api-specEndpoints, contracts, auth, rate limitsdeveloper, security-auditor
design-systemColors, typography, spacing, components, animationdesigner, design-reviewer
glossaryDomain terms, user roles, status flowsplanner, designer, thinker
user-flowUser journeys, page map, error paths, edge casesplanner, browser-qa, canary-monitor
env-varsEnvironment variables, server-only secrets, environmentsdeveloper, security-auditor

Example: Adding ERD

npx buildcrew add erd

Creates .claude/harness/erd.md with a template to fill in:

# ERD
 
## Tables
 
### users
| Column | Type | Constraints | Description |
|--------|------|-------------|-------------|
| id | uuid | PK | |
| email | text | unique | |
 
## Relationships
users 1──* orders

Edit the file to match your actual schema. Agents read it automatically.

Custom Files

Not limited to templates. Create any .md:

echo "# Tech Debt Backlog" > .claude/harness/tech-debt.md

All agents (especially reviewer, security-auditor, thinker, and architect) will read it.