triad

my-plugins marketplace

This folder is a Claude Code plugin marketplace. Claude Code discovers it from .claude-plugin/marketplace.json, which currently publishes the triad plugin from ./triad.

Install from this local marketplace

From Claude Code, add this folder as a marketplace and install triad:

/plugin marketplace add /Users/idjemere/repos/my-plugins/plugins
/plugin install triad@my-plugins

After changing marketplace metadata or plugin versions, refresh Claude Code's listing:

/plugin marketplace update my-plugins

Published plugins

triad

A Claude Code plugin that wraps a real plan → build → test development loop. Three skills, two subagents, one MCP server, one hook.

/triad:build add a healthcheck endpoint that returns 200

triad drafts a plan, asks you to confirm it, hands the plan to a dev-executor subagent that implements the changes, then to a tester subagent that verifies the result against the plan's acceptance criteria. Files saved by the dev-executor are auto-formatted on the way out. Library docs are pulled live from context7 during planning and implementation.

Components

Entry point	What it does
/triad:plan <task>	Drafts a structured plan with goal, affected files, dependencies, and acceptance criteria. Writes to .triad/plans/, echoes to chat.
/triad:build <task>	End-to-end loop: plan → confirm → dev-executor → tester. Bounded retry on test failure (cap configurable).
/triad:test [scope]	Runs the project's test suite. Auto-detects the runner from project files.
@triad:dev-executor	Implements code from a plan path. Restricted to non-destructive operations. Self-validates via /triad:test.
@triad:tester	Read-only validator. Maps acceptance criteria → PASS/FAIL with the underlying test output.

Building blocks

triad showcases all four canonical Claude Code plugin building blocks composing in one workflow:

• Skills — /triad:plan, /triad:build, /triad:test
• Subagents — @triad:dev-executor, @triad:tester
• MCP — context7 (library docs lookup, registered in .mcp.json)
• Hooks — PostToolUse on Edit/Write triggers hooks/auto-format.sh, which dispatches by file extension to prettier / ruff / gofmt / rustfmt

Install

Local development / testing

git clone <repo-url> triad
cd <your-project>
claude --plugin-dir /path/to/triad

From a marketplace (once published)

/plugin marketplace add /Users/idjemere/repos/my-plugins/plugins
/plugin install triad@my-plugins

Configuration

Env var	Effect	Default
TRIAD_NO_AUTOFORMAT	Set to 1 to bypass the auto-format hook (e.g. if you have your own format-on-save tooling).	0
TRIAD_MAX_ITERATIONS	Override the /triad:build retry cap. Triad re-invokes @triad:dev-executor up to this many times when tests fail.	3
TRIAD_HOOK_TRACE	Set to 1 to append a diagnostic line per hook invocation. Useful when debugging whether the hook is firing, which formatter ran, or what payload the host sent (especially under VS Code Copilot, which ignores the matcher field).	0
TRIAD_HOOK_LOG	Destination for the trace lines when TRIAD_HOOK_TRACE=1. If unset, the hook writes to <cwd>/.triad/hook.log (project-level, next to plan files), falling back to /tmp/triad-hook.log if .triad/ can't be created.	(see Effect)
TRIAD_HOOK_NOTIFY	Set to 0 to suppress the system-reminder the hook injects back into the agent's context after a formatter runs (the message that lets the agent tell you "auto-formatted X with prettier").	1

Plan format

Plans are markdown files with structured frontmatter, written to <cwd>/.triad/plans/<slug>-<timestamp>.md. Add .triad/ to your .gitignore.

---
goal: Add dark mode toggle to settings page
affected_files:
  - src/components/SettingsPage.tsx
  - src/styles/themes.ts
dependencies:
  - none
acceptance_criteria:
  - Toggle persists across page reloads
  - Theme applies to all child components
  - Existing theme tests still pass
---

# Plan: Add dark mode toggle

## Steps

1. Extend `themes.ts` with a `dark` palette …
2. …

## Risks

- …

The frontmatter is the contract between the planner, dev-executor, and tester. The acceptance_criteria list is what the tester checks.

Auto-format support

The hook formats files on every Edit / Write, dispatching by extension:

Extension	Formatter
.js .jsx .ts .tsx .mjs .cjs .json .css .html .md .yaml .yml	prettier --write
.py	ruff format
.go	gofmt -w
.rs	rustfmt