sdlc

sdlc is a plugin for Claude Code from rsts-dev/claude-buddy-marketplace. Its manifest loads nothing; the 7 skills, 5 commands it bundles cost 751 tokens per session together, scanned A, original, MIT.

A development workflow for using AI on existing software projects. It follows four stages—research, plan, implement, and validate—and can break work into Jira and Confluence items while using GitHub for source control.

In plain words
What is it for?
Use it to initialise an AI project layer, generate project instructions, prepare features, split large work into tasks, execute plans, validate changes, review code, investigate root causes, and work with Jira, Confluence, or GitHub.
Why use it?
It gives an agent a repeatable way to understand an unfamiliar codebase, plan changes, carry them out, and check the result. It also keeps project-specific AI instructions and context in the repository.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add rsts-dev/claude-buddy-marketplace
agentmods
npx agentmods add plugins/rsts-dev/claude-buddy-marketplace/sdlc
Clone the repo
git clone --depth 1 https://github.com/rsts-dev/claude-buddy-marketplace

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 sdlc

README.md
[![agentmods](https://agentmods.dev/badge/plugins/rsts-dev/claude-buddy-marketplace/sdlc.svg)](https://agentmods.dev/plugins/rsts-dev/claude-buddy-marketplace/sdlc)
Your own site
<a href="https://agentmods.dev/plugins/rsts-dev/claude-buddy-marketplace/sdlc"><img src="https://agentmods.dev/badge/plugins/rsts-dev/claude-buddy-marketplace/sdlc.svg" alt="Measured on agentmods" 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 7 skills, 5 commands cost 751 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

sdlc 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 4d ago.

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/sdlc/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "sdlc",
  "version": "1.1.0",
  "description": "Tactical AI-native SDLC layered on Claude Buddy — Cole Medin's R-PIV loop (Research, Plan, Implement, Validate) for brownfield projects, with epic/story/task decomposition in Jira & Confluence and GitHub as source control via MCP. A complement to buddy: reuses its Foundation, adds a checked-in AI layer (lean CLAUDE.md + context modules) and external-tool integration. USE WHEN sdlc, ai-native development, r-piv, rpiv, research plan implement validate, brownfield, init ai layer, generate CLAUDE.md, prime context, decompose epic, plan feature, execute plan, validate changes, ai code review, root cause analysis, jira, confluence, github pr. Requires the buddy plugin (which requires LifeOS).",
  "author": { "name": "Claude Buddy Contributors", "url": "https://github.com/rsts-dev/claude-buddy-marketplace" },
  "license": "MIT",
  "homepage": "https://claude-buddy.dev",
  "repository": "https://github.com/rsts-dev/claude-buddy-marketplace",
  "keywords": ["sdlc", "ai-native", "r-piv", "brownfield", "jira", "confluence", "github", "mcp", "code-review", "tactical", "buddy", "lifeos"]
}
Contents

What it installs

The manifest is a name and a version. 7 skills, 5 commands travel with it, and installing the plugin installs all of them — 751 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. 4d ago First seen · 11 lines scan A 3d0af777dda8

Subscribe to this mod's changes

sdlc is a plugin published in the GitHub repository rsts-dev/claude-buddy-marketplace (17 stars, last pushed 13d ago), 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 2026-08-30.