implementation

implementation is a plugin for Claude Code from melodic-software/claude-code-plugins. Its manifest loads nothing; the 2 skills, 3 agents it bundles cost 524 tokens per session together, scanned A, original, MIT.

A disciplined process for carrying out an approved coding plan, with incremental checks, tests, commits, and a route back to planning when the approach stops matching the plan.

In plain words
What is it for?
It is for implementing features and fixes while building and testing after each logical change. TDD, or test-driven development, means writing tests as part of guiding the implementation.
Why use it?
It reduces the risk of making many code changes before discovering that the implementation is broken or has drifted from the intended design.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest. Also seen: mentions subagents.

Good fit It is for implementing features and fixes while building and testing after each logical change. TDD, or test-driven development, means writing tests as part of guiding the implementation.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add melodic-software/claude-code-plugins
/plugin install implementation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/melodic-software/claude-code-plugins

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for implementation

README.md
[![agentmods](https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/implementation/github.svg)](https://agentmods.dev/plugins/melodic-software/claude-code-plugins/implementation)
Your own site
<a href="https://agentmods.dev/plugins/melodic-software/claude-code-plugins/implementation"><img src="https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/implementation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for implementation

Your own site · 80×15
<a href="https://agentmods.dev/plugins/melodic-software/claude-code-plugins/implementation"><img src="https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/implementation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 3 agents cost 524 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

implementation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/implementation/.claude-plugin/plugin.json · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "name": "implementation",
  "version": "0.30.1",
  "description": "Disciplined implementation stage: execute approved plans inline (`/implementation:implement`) or via orchestrated worker subagents (`/implementation:implement-dispatch`) with incremental validation, TDD-by-default cadence, green-checkpoint commits, scope-fence drift detection, and divergence detection that routes back to planning. Build/test/lint, testing, and outcome verification live in the companion `toolchain`, `testing`, and `verification` plugins, invoked when installed.",
  "author": {
    "name": "Melodic Software",
    "email": "[email protected]"
  },
  "license": "MIT",
  "keywords": [
    "implementation",
    "implement",
    "orchestration",
    "execution",
    "tdd",
    "skill"
  ],
  "userConfig": {
    "implement_dispatch_wave_cap": {
      "type": "number",
      "title": "Dispatch wave cap (rows)",
      "description": "Maximum worker rows /implementation:implement-dispatch runs at once in one wave, counting rows from every plan phase in it. Leave unset to keep the internal 3-5 wave default. A fractional value is floored. A --wave-cap argument from a chaining caller takes precedence for that invocation.",
      "min": 1
    },
    "verify_mechanical_phases": {
      "type": "boolean",
      "title": "Fresh verifier on mechanical phases",
      "description": "When on, /implementation:implement and /implementation:implement-dispatch send every phase, mechanical ones included, to a fresh-context verifier. Off (default) keeps the mechanical carve-out. True here or in a repository's docs/conventions/implementation.yaml wins.",
      "default": false
    },
    "drain_cadence": {
      "type": "string",
      "title": "Return drain cadence",
      "description": "When /implementation:implement-dispatch reads worker returns. on-arrival (default): each return as it comes in. batched: held until the orchestrator step in progress finishes, for long multi-wave runs. A repository

Read the full file on GitHub · 103 lines

Contents

What it installs

The manifest is a name and a version. 2 skills, 3 agents travel with it, and installing the plugin installs all of them — 524 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday Changed 889d28f4f058
  2. 3d ago Changed 880391bfcc14
  3. 5d ago Changed a8916f045db0
  4. 6d ago Changed c96c38a642d3
  5. 7d ago Changed bf151c2d88c3
  6. 8d ago Changed · +76 lines aa09c57e7fa7
  7. 9d ago Changed 01d69e14cee2
  8. 10d ago Changed c37704468962
  9. 12d ago Changed 14dbec0f08a4
  10. 13d ago First seen · 27 lines scan A ddec86674799

Subscribe to this mod's changes

implementation is a plugin published in the GitHub repository melodic-software/claude-code-plugins (26 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.