T3d init

Skill coolsocket/t3d/skills/t3d-init

DDD + TDD harness for Claude Code — 5 hooks enforce Domain layer purity, cross-context call rules, and red-green discipline at edit time. Ships 4 skills + project templates.

Install

npx -y skills add coolsocket/t3d --skill t3d-init

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

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What its author says it does

Copied from the file, not written here

Initialize the current project with the DDD+TDD harness — copies CLAUDE.md, CONTEXT-MAP.md, contexts/_TEMPLATE/, contexts/_shared_kernel/, and docs/adr/ from the plugin. Use when adopting the harness in a fresh repo or onboarding an existing one. Run from the project root.

SKILL.md

2.5 KB, as published. Nobody here has run it

t3d-init

Copy the harness templates into the current project root (the directory where Claude Code was launched).

Plan

Resolve the project root from ${CLAUDE_PROJECT_DIR}. Print it.
For each template file under ${CLAUDE_PLUGIN_ROOT}/templates/:
- Compute destination path under ${CLAUDE_PROJECT_DIR}/.
- If destination exists, ask the user before overwriting (do NOT silently clobber CLAUDE.md).
- Otherwise, cp it across, preserving directory structure.
After copying, print a "next steps" message:
- Open CLAUDE.md and fill the  project-identity section.
- Open CONTEXT-MAP.md and list your bounded contexts.
- Run /t3d-new-context <your-first-context> to scaffold the first context.

Required tool calls

You must use the Bash tool to run cp -r. Do not use the Write tool for copying — it would re-author files and lose timestamps/perms.

Templates to copy

The plugin ships this layout under ${CLAUDE_PLUGIN_ROOT}/templates/:

templates/
├── CLAUDE.md                # generic harness rules (with FILL IN placeholders)
├── CONTEXT-MAP.md           # empty bounded-context inventory
├── contexts/
│   ├── _TEMPLATE/           # 4-layer skeleton — copy-paste source for new contexts
│   └── _shared_kernel/      # example pure value objects (Money, Timestamp, ModelName, TokenCount)
└── docs/
    └── adr/
        ├── README.md        # Matt Pocock 3-condition ADR rule
        └── NNNN-template.md # ADR template

Conflict handling

If ${CLAUDE_PROJECT_DIR}/CLAUDE.md already exists, ask the user one of:

keep — leave existing, don't copy CLAUDE.md (default)
overwrite — replace with plugin version
view-diff — show diff first

Do not overwrite contexts/_shared_kernel/ if it exists either — that directory often has project-specific value objects.

Done criteria

After running, the user should be able to:

Edit a file at contexts/anything/domain/x.py containing import fastapi and see the PreToolUse hook DENY it.
Run /t3d-new-context billing and see contexts/billing/ appear with the full 4-layer skeleton.