sdd-change-init

A command that starts a documented change proposal for an existing software project. It first reviews project notes and the current code before describing what should be added, changed, or removed.

In plain words
What is it for?
Use it to begin proposals such as adding two-factor authentication, moving to GraphQL, or refactoring an authentication service.
Why use it?
It reduces the risk of planning changes without understanding the existing system, its technology, or its limits.

Command 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.

agentmods
npx agentmods add commands/nahisaho/codegraphmcpserver/sdd-change-init
Clone the repo
git clone --depth 1 https://github.com/nahisaho/CodeGraphMCPServer

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,533 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.03533
Opus 5 $0.00000 $0.01767
Sonnet 5 $0.00000 $0.00707
Haiku 4.5 $0.00000 $0.00353

Measured 2d ago against content hash 3351216f066f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sdd-change-init 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 2d 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/commands/sdd-change-init.md · 646 lines

How it starts

The opening of the file, as written. The whole thing — 646 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SDD Change Init Command

Initialize a change proposal for brownfield projects.


Instructions for GitHub Copilot

You are executing the #sdd-change-init [change-name] command to create a change proposal for an existing codebase.

Command Format

#sdd-change-init add-2fa
#sdd-change-init migrate-to-graphql
#sdd-change-init refactor-auth-service

Your Task

Generate a change proposal specification that documents what will be added, modified, or removed in the existing system.


Process

1. Read Steering Context (Article VI)

IMPORTANT: Before starting, read steering files to understand current system:

# Read these files first
steering/product.md      # Current product context
steering/structure.md    # Existing architecture
steering/tech.md         # Current technology stack

Extract:

  • Current architecture patterns
  • Existing components
  • Technology stack
  • Known constraints

2. Analyze Existing System

Research Current Implementation:

# Search for related code
grep -r "{{related-feature}}" src/
grep -r "{{related-feature}}" lib/

# Find existing requirements
ls storage/specs/*requirements.md

# Check existing design documents
ls storage/specs/*design.md

Document Current State:

  • What exists now?
  • What components are affected?
  • What dependencies exist?
  • What tests cover this area?

3. Gather Change Requirements

Methods:

A. Stakeholder Interview

Use AskUserQuestion tool to ask:

  • Why is this change needed?
  • What problem does it solve?
  • What are the business drivers?
  • What is the scope of the change?
  • What must NOT change (backward compatibility)?
  • What is the timeline/deadline?
B. Impact Analysis

Identify affected areas:

  • Frontend components
  • Backend services
  • Database schema
  • APIs (internal/external)
  • Third-party integrations
  • Tests
  • Documentation

4. Create Change Proposal Document

Use template from templates/change-proposal.md:

Read the full file on GitHub · 646 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. 2d ago First seen · 646 lines · 0 tokens per session scan A 3351216f066f

Subscribe to this mod's changes

sdd-change-init is a command published in the GitHub repository nahisaho/CodeGraphMCPServer (12 stars, last pushed 8mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,533 tokens. 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.