claude-code-sdlc: Instructions file for Claude Code

CLAUDE.md

claude-code-sdlc CLAUDE.md is an instructions file for Claude Code from MCKRUZ/claude-code-sdlc. It costs 16,934 tokens per session, scanned A, original, MIT.

A Claude Code plugin for managing the software development life cycle provides commands, agents, and guidance for stages such as requirements, design, implementation, review, testing, and reporting. Claude Code is a coding assistant that can follow project-specific workflows.

In plain words
What is it for?
It is for running and coordinating software projects through configurable lifecycle profiles, including requirements analysis, specifications, reviews, audits, and retrospectives.
Why use it?
It organises development work into a repeatable process with separate checks and roles for different kinds of work.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: positional $N argument; mentions Claude Code.

This is MCKRUZ/claude-code-sdlc's own configuration. It tells Claude Code how to work on claude-code-sdlc itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-code-sdlc configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MCKRUZ/claude-code-sdlc. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/MCKRUZ/claude-code-sdlc/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/MCKRUZ/claude-code-sdlc

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 claude-code-sdlc CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/mckruz/claude-code-sdlc/claude-md/github.svg)](https://agentmods.dev/instructions/mckruz/claude-code-sdlc/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/mckruz/claude-code-sdlc/claude-md"><img src="https://agentmods.dev/badge/instructions/mckruz/claude-code-sdlc/claude-md/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 claude-code-sdlc CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/mckruz/claude-code-sdlc/claude-md"><img src="https://agentmods.dev/badge/instructions/mckruz/claude-code-sdlc/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16,934 This file is loaded in full into every session.
When invoked 16,934 The same file — it is already loaded in full.
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.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.16934 $0.16934
Opus 5.5 $0.06774 $0.06774
Sonnet 5.5 $0.03387 $0.03387
Haiku 4.5 $0.01693 $0.01693

Measured 22d ago against content hash 7d47a3b89490, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-sdlc CLAUDE.md 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 22d 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.

CLAUDE.md · 196 lines

How it starts

The opening of the file, as written. The whole thing — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.

claude-code-sdlc — Development Instructions

What This Is

A Claude Code plugin that orchestrates the full SDLC lifecycle using company-configurable profiles. It makes the AI-SDLC methodology executable within Claude Code.

Architecture

  • plugin.json — Plugin manifest (entry point for Claude Code)
  • SKILL.md — Main skill definition (loaded when plugin activates)
  • commands/ — 32 slash commands (/sdlc, /sdlc-setup, /sdlc-status, /sdlc-next, /sdlc-gate, /sdlc-enhance, /sdlc-coach, /sdlc-review, /sdlc-intake, /sdlc-brief, /sdlc-spec, /sdlc-spike, /sdlc-sprint, /sdlc-refine, /sdlc-handoff, /sdlc-spec-status, /sdlc-audit, /sdlc-audit-artifacts, /sdlc-channel, /sdlc-data, /sdlc-doctor, /sdlc-evals, /sdlc-experience, /sdlc-feature, /sdlc-harness, /sdlc-phase-report, /sdlc-refresh, /sdlc-retro, /sdlc-revise, /sdlc-rules, /sdlc-upgrade, /sdlc-version)
  • agents/ — 14 agents (orchestrator, requirements-analyst, compliance-checker, section-evaluator, narrative-enhancer, gate-repair, multi-reviewer, discovery-analyst, document-summarizer, feature-architect, visual-designer, conversation-designer, data-analyst, bizreq-analyst)
  • channels/ — Cross-profile channel descriptor library (_schema.yaml, ag-ui.yaml, voice.yaml, chat.yaml) — the delivery-surface vocabulary the channel layer reads
  • profiles/ — Company/stack YAML configs with compliance gates
  • phases/ — Phase definitions (9 phases: 0, 1, 2, 3 Foundation, build loop, 7, 8, 9, close). The 4/5/6 gap is intentional — the batch Implementation/Quality/Testing phases are replaced by the continuous Build loop. Phase identity/ordering is owned by scripts/phase_model.py reading phases/phase-registry.yaml.
  • references/ — Progressive disclosure docs (loaded on-demand)
  • templates/ — Artifact templates copied to target projects
  • scripts/ — Python automation (uv runtime)
  • scripts/code_host.py + ado_import.py (with ado_map.py / ado_transport.py / ado_pipelines.py), ado_outcomes.py, import_outcomes.py, host_report.py — the code-host provider layer: which host a repository is on (github / azure-devops / none), the az twin of the gh reads and writes returning the same dict shapes, the Azure DevOps scorecard import, and the top-level host block every host-touching --json carries. references/code-host-providers.md is the contract
  • hooks/ — PowerShell hooks for session/phase context injection
  • studio/ — SDLC Studio, this plugin's optional Electron desktop front end (Node/TypeScript, its own package.json and test suite). The plugin is fully usable without it, and nothing outside this folder depends on it. SDLC Studio never reimplements plugin logic — it runs the scripts above the same way a person would. Its tests locate the plugin as their parent directory, so they always exercise the checkout they ship in. Every claude call SDLC Studio makes uses flags declared in studio/shared/claudeContract.ts and probed once against claude --help, so an older Claude Code is reported ("lacks — update") rather than failing silently. Brand assets (mark, wordmark, palette, brandbook) live in docs/brand/togo/; the team guides in docs/guide/. Upgrade round 2 (docs/proposals/studio-upgrade-2.md, 2026-10-06) added the Depth mark at hero size and the packaged app icon, readable dark-theme text tokens, one PageHeader/Disclosure kit for every screen, a measured fix for the ghost strip and the Board graph's fit, lit 3D bodies with a viewing reticle and ledger plates, a keyboard scope for the graphs, and sign-off / hand-off / project-open ceremonies that quieten with familiarity — no new dependency, nothing under studio/electron/**, the plugin's protected core (scripts/, phases/, templates/, agents/, commands/, hooks/, profiles/, references/) byte-for-byte untouched — pytest proves it. The command center (docs/proposals/togo-command-center.md, 2026-10-06) reorganised the app around the Build loop — a top band with an omnibar and an SVG lifecycle strip replace the sidebar; a sprint home (lanes · Today · In the room · Refining), planning, an in-place spec card, a close screen and a read-only steering mode draw one main-process CommandCenter read model with per-block provenance, and every write goes through a closed sprint.py argv table with the signed-in person as --by — alongside additive plugin verbs (sprint.py list|log|carry|edit, spec_transition.py confirm-tier|assign, handoff.py --check, spec_readiness.py --all + ladder[], record_findings.py report --json findings[]) that leave every existing verb's text and exit codes byte-identical. See studio/README.md.

Read the full file on GitHub · 196 lines

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. 22d ago Changed · +17 lines · +2,621 tokens per session 7d47a3b89490
  2. 25d ago Changed · +3 lines · +684 tokens per session 1e24d15c48c7
  3. 26d ago Changed · +9 lines · +2,305 tokens per session 203f1da4ebe6
  4. 27d ago Changed · +26 lines · +3,056 tokens per session 7ff1bc690029
  5. 1mo ago Changed · +1 lines · +414 tokens per session ff0e6d3a94c4
  6. 1mo ago Changed · +43 lines · +3,509 tokens per session e864c11f0284
  7. 2mo ago First seen · 97 lines · 4,345 tokens per session scan A 182805b2ae04

Subscribe to this mod's changes

claude-code-sdlc CLAUDE.md is an instructions file published in the GitHub repository MCKRUZ/claude-code-sdlc (8 stars, last pushed 23d ago), licensed MIT. It adds 16,934 tokens to every session, about $0.0677 per session on Opus 5.5. 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 2026-08-31.

Related

Other instructions, from other repositories

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,461 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,750 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens