| name | architect |
| description | Define architecture and conventions for a new project before code exists. Produces the same AI configuration as /bootstrap (CLAUDE.md, rules, agents, AGENTS.md) but declared from intent rather than discovered from code. Run once at project start, then validate later with /bootstrap. |
| argument-hint | [project name or description] |
Architect — Proactive Configuration for New Projects
Purpose
Capture architectural intent before code exists, so AI tools enforce conventions from line one. This is the same AI configuration layer that /bootstrap produces (CLAUDE.md, rules, agents, AGENTS.md) — but declared from intent rather than discovered from code.
This is NOT scaffolding — no code is generated. Only AI tool configuration.
Lifecycle:
/architect → declares intent, generates [DECLARED] config
write code → AI tools enforce declared conventions
/bootstrap → validates reality vs declarations
CONFIRMED → remove [DECLARED] tag
DIVERGED → present both, ask user
NOT YET → keep [DECLARED] tag
/learn → ongoing refinement
When to Use
- Starting a brand new project with no code yet
- When you know the tech stack and architecture but haven't written code
- When you want AI tools to enforce conventions from the first commit
Prerequisites
- A target directory (can be empty)
- The user has an idea of what they're building (at minimum: stack and project name)
Tool Target Preferences
Before generating any output, check for .north-starr.json in the project root:
{
"version": 1,
"targets": ["claude", "copilot", "cursor"]
}
- If the file exists, only generate artifacts for the listed targets
- If the file is missing, ask the user which tools they use (as part of Phase 1), save their answer to
.north-starr.json, then generate only for those targets
AGENTS.md is always generated regardless of preferences (it's universal)
- Valid targets:
"claude", "copilot", "cursor"
Workflow
Phase 1: Identity (Required)
Goal: Capture the minimum viable project identity — enough for smart defaults.
Ask these questions one at a time, adapting based on answers:
-
Project name + description
- "What's the project name and a one-sentence description?"
- Accept anything — this becomes the header in context files
-
Tech stack
- "What tech stack? (e.g., 'React TS', 'Go API', 'iOS SwiftUI', 'Rails', 'Python FastAPI')"
- Accept shorthand — resolve to full stack details using
references/stack-conventions.md
- If ambiguous, offer the 2-3 most likely interpretations
-
Architecture pattern
- Based on the chosen stack, propose 2-3 common patterns from
references/stack-conventions.md
- "For [stack], the most common patterns are [X, Y, Z]. Which fits, or describe your own?"
- If the user isn't sure, suggest the default for that stack
- Accept custom patterns — just document what the user describes
-
AI tools (only if .north-starr.json is missing)
- "Which AI tools do you use? (Claude Code, VS Code Copilot, Cursor — or all?)"
- Save the answer to
.north-starr.json in the project root
- If the file already exists, skip this question and use the saved preferences
After Phase 1: You have enough to generate useful configuration. Offer to continue to Phase 2 or generate now with smart defaults.
Phase 2: Conventions (Recommended)
Goal: Refine defaults — confirm or override what the stack conventions suggest.
-
File/directory organization
- Propose the default layout from
references/stack-conventions.md for the chosen stack+pattern
- "Here's the typical structure for [stack] + [pattern]. Does this match your plan, or would you change anything?"
- User can confirm, modify, or skip (defaults apply)
-
Conventions to enforce
- Propose defaults from the stack conventions: naming, error handling, testing strategy, state management
- "These are the standard conventions for [stack]. Any changes or additions?"
- Focus on things that are enforceable via rules (not aspirational guidelines)
-
Hard constraints / danger zones
- "Are there any hard rules — things that should never happen? (e.g., 'no direct DB access outside the repository layer', 'never force-unwrap optionals')"
- These become high-priority rules
After Phase 2: Configuration is well-tailored. Offer Phase 3 or generate.
Phase 3: Context (Optional)
Goal: Capture extra context that improves AI effectiveness.
-
Reference project
- "Is there an existing north-starr project to adapt config from?"
- If yes, read that project's config and adapt (preserving the new project's identity)
-
Catch-all
- "Anything else? Domain vocabulary, team preferences, external constraints, API contracts?"
- Capture whatever the user offers
Phase 4: Generate Configuration
Goal: Produce all configuration artifacts, marked [DECLARED] to distinguish from discovered config.
Use references/stack-conventions.md to fill in smart defaults for anything the user didn't explicitly specify.
A. Project Context (root-level)
Write to enabled target locations:
CLAUDE.md — Claude Code (auto-loaded) — generate if claude target is enabled
AGENTS.md — Universal (works with any AI tool) — always generated
.github/copilot-instructions.md — VS Code Copilot (auto-loaded) — generate if copilot target is enabled
All context files get the same content:
# [Project Name]
[One-sentence project description]
<!-- Generated by /architect — [DECLARED] config. Run /bootstrap after writing code to validate. -->
## Tech Stack
[Languages, frameworks, key dependencies, build tools, test runner]
## Architecture [DECLARED]
[Pattern, topology, layers and their responsibilities]
## Grain [DECLARED]
[What changes easily, what is hard — based on declared architecture]
## Module Map [DECLARED]
[Planned modules/packages with one-line descriptions and intended relationships]
## Vocabulary
[Domain terms with project-specific meanings]
## Conventions [DECLARED]
[Naming, error handling, testing, state management — from stack defaults + user overrides]
<!-- [NORTH-STARR:how-to-approach-tasks] -->
## How to Approach Tasks
**Before starting any task, assess its complexity:**
| Complexity | Signals | Action |
|------------|---------|--------|
| **Low** | Single file, straightforward change, well-understood area | Implement directly |
| **Medium** | 3+ files, unfamiliar area, non-trivial logic, or integration points | Run `/invert` then `/plan` automatically |
| **High** | Wide blast radius, irreversible changes, unfamiliar domain, or critical system | Run `/invert` then `/plan` automatically |
**For Medium and High complexity tasks — do this automatically, don't wait for the user to ask:**
1. Run `/invert` — identify risks, edge cases, and failure modes
2. Run `/plan` — break the work into tracked tasks, using invert's risks as constraints
3. Execute the plan with progress tracking and session notes
**Resuming work:** Always check `.plans/` for active implementation plans before starting new work. If an active plan exists, resume it instead of starting fresh.
<!-- [/NORTH-STARR:how-to-approach-tasks] -->
<!-- [NORTH-STARR:auto-learn] -->
## When to Learn Automatically
**Run `/learn` automatically — do not wait for the user to ask — when any of these signals occur during a session:**
| Signal | Example | What to Capture |
|--------|---------|-----------------|
| | "No, don't do it that way — use X instead" | — the correct approach so it's followed next time |
| | User asks you to fix the same issue or area more than once in a session | — the fragile area and why it keeps breaking |
| | Tests fail, build breaks, or existing behavior regresses after your edit | — what broke and why, so it's avoided next time |
| | "That's wrong", "revert that", or user manually undoes your change | — capture what was wrong and what's correct |
| | Code follows a pattern not captured in any rule or context file | — document it before it's forgotten |
| | Something looked safe but caused unexpected problems | — document the trap for future sessions |
Detect the signal during normal work
Finish the immediate fix or correction first
Then run to capture the insight as a pattern or landmine rule
If a pattern or landmine already exists for this area, update it — do not create duplicates. Prompt the user when the update contradicts existing content.
<!-- [/NORTH-STARR:auto-learn] -->
If any of these files already exist with project-specific content, merge rather than overwrite.
B. Path-Scoped Rules
Generate rules based on the declared architecture and conventions. Create for each enabled target:
Claude Code — .claude/rules/*.md (if claude target enabled):
---
paths: ["glob/pattern/**"]
---
<!-- Generated by /architect — [DECLARED] -->
[Clear, concise instruction based on declared conventions]
VS Code Copilot — .github/instructions/*.instructions.md (if copilot target enabled):
---
applyTo: "glob/pattern/**"
---
<!-- Generated by /architect — [DECLARED] -->
[Same instruction content]
Cursor — .cursor/rules/*.mdc (if cursor target enabled):
---
globs: glob/pattern/**
---
<!-- Generated by /architect — [DECLARED] -->
[Same instruction content]
What to generate rules for:
- Naming conventions — scoped to the project's file extensions
- Architecture layer constraints — what each layer can/cannot import
- Error handling — the declared pattern for the stack
- Testing conventions — naming, location, style
- Any hard constraints from Phase 2
Guidelines:
- Generate rules from declared conventions and stack defaults — not discovered code
- Use specific path globs based on the declared directory structure
- Keep each rule file focused on one concern
- Mark every rule with
<!-- Generated by /architect — [DECLARED] -->
C. Agents
Generate agents for each enabled target that supports them:
Claude Code — .claude/agents/*.md (if claude target enabled):
---
name: [project]-explorer
description: Deep exploration and analysis of the [project] codebase
model: sonnet
tools: Read, Glob, Grep
memory: project
---
VS Code Copilot — .github/agents/*.agent.md (if copilot target enabled):
---
name: [project]-explorer
description: Deep exploration and analysis of the [project] codebase
tools: codebase
---
The agent prompt should include:
- The declared architecture and grain
- Planned modules and their relationships
- Declared conventions to watch for
D. Startup Plan (Optional)
Offer to generate .plans/PLAN-project-setup.md — an initial implementation plan that bridges into /plan:
# Plan: project-setup
**Created:** [date]
**Status:** ACTIVE
**Source:** /architect — initial project setup
## Goal
Set up the project structure, dependencies, and initial code based on the declared architecture.
## Tasks
### 1. Initialize project
**Status:** PENDING
- [ ] Create project with [stack's init tool]
- [ ] Configure [build tool, linter, formatter]
- [ ] Set up directory structure per declared module map
### 2. Implement foundational patterns
**Status:** PENDING
**Blocked by:** 1
- [ ] Create base types/interfaces for [architecture pattern]
- [ ] Set up [error handling, DI, state management] patterns
- [ ] Add first example following all declared conventions
### 3. Validate with /bootstrap
**Status:** PENDING
**Blocked by:** 2
- [ ] Run /bootstrap to validate declared config against actual code
- [ ] Review any DIVERGED items
- [ ] Confirm conventions are reflected in the codebase
Adapt the tasks to the specific stack and architecture.
Post-Architect Checklist
Output Summary
After completing all phases, present:
## Architect Complete
**Project:** [name]
**Tech Stack:** [languages, frameworks, tools]
**Architecture:** [pattern] [DECLARED]
**Grain:** [easy changes vs. hard changes] [DECLARED]
**Enabled Tools:** [list from .north-starr.json]
**Files Generated:**
Universal:
- AGENTS.md — [sections included]
[Include only sections for enabled targets:]
Claude Code: ← if claude target enabled
- CLAUDE.md — [sections included]
- [N] .claude/rules/ files — [list names]
- [N] .claude/agents/ files — [list names]
VS Code Copilot: ← if copilot target enabled
- .github/copilot-instructions.md
- [N] .github/instructions/ files — [list names]
- [N] .github/agents/ files — [list names]
Cursor: ← if cursor target enabled
- [N] .cursor/rules/ files — [list names]
**All config marked [DECLARED].**
Run /bootstrap after writing code to validate declarations against reality.
Notes
- This skill is language-agnostic — it uses
references/stack-conventions.md for smart defaults across 11+ stacks
- This skill respects tool target preferences — check
.north-starr.json for enabled targets, or ask and save if missing. Only generate artifacts for enabled tools.
- Even answering only Phase 1 should produce useful, non-trivial configuration via smart stack-aware defaults
- The
[DECLARED] tag is critical — it tells /bootstrap to validate rather than regenerate
- Conversational style — ask questions one at a time, adapt based on answers, offer smart defaults
- No code generation — only AI tool configuration
- Works best as a complement to
/bootstrap: architect declares, bootstrap validates
- The generated configuration is a starting point — it improves through
/bootstrap validation and /learn refinement