Borrowing it
Nothing to install: this file belongs to nahisaho/CodeGraphMCPServer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nahisaho/CodeGraphMCPServer/main/.claude/commands/sdd-change-apply.mdgit clone --depth 1 https://github.com/nahisaho/CodeGraphMCPServerWrote 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.
[](https://agentmods.dev/commands/nahisaho/codegraphmcpserver/sdd-change-apply)<a href="https://agentmods.dev/commands/nahisaho/codegraphmcpserver/sdd-change-apply"><img src="https://agentmods.dev/badge/commands/nahisaho/codegraphmcpserver/sdd-change-apply/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.
<a href="https://agentmods.dev/commands/nahisaho/codegraphmcpserver/sdd-change-apply"><img src="https://agentmods.dev/badge/commands/nahisaho/codegraphmcpserver/sdd-change-apply.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.04087 |
| Opus 5.5 | $0.00000 | $0.01635 |
| Sonnet 5.5 | $0.00000 | $0.00817 |
| Haiku 4.5 | $0.00000 | $0.00409 |
Grade A, and why
sdd-change-apply 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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 764 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SDD Change Apply Command
Apply a change proposal to the codebase.
Instructions for GitHub Copilot
You are executing the #sdd-change-apply [change-name] command to implement an approved change proposal.
Command Format
#sdd-change-apply add-2fa
#sdd-change-apply migrate-to-graphql
#sdd-change-apply refactor-auth-service
Your Task
Implement the changes defined in the change proposal, following constitutional governance and best practices.
Process
1. Read Change Proposal
IMPORTANT: Read the approved change proposal first:
# Read proposal
storage/changes/{{change-name}}-proposal.md
Extract:
- ADDED requirements
- MODIFIED requirements
- REMOVED requirements
- Implementation plan
- Testing requirements
- Success metrics
Verify Approval:
- Status must be "Approved" (not "Proposed" or "Rejected")
- If not approved, abort and notify user
2. Read Steering Context (Article VI)
# Read these files
steering/product.md # Product context
steering/structure.md # Architecture patterns
steering/tech.md # Technology stack
3. Set Up Feature Flag
Create Feature Flag (for gradual rollout):
// lib/feature-flags/flags.ts
export const FEATURE_FLAGS = {
// ... existing flags ...
enable_{{feature}}: {
enabled: false, // Start disabled
description: '{{CHANGE_DESCRIPTION}}',
rolloutPercentage: 0,
},
} as const;
Update Configuration:
// lib/feature-flags/config.ts
export function isFeatureEnabled(flag: keyof typeof FEATURE_FLAGS): boolean {
if (process.env.NODE_ENV === 'test') {
return true; // Always enabled in tests
}
const config = FEATURE_FLAGS[flag];
if (!config.enabled) return false;
// Gradual rollout logic
return Math.random() * 100 < config.rolloutPercentage;
}
4. Implement Changes (Library-First - Article I)
For Each ADDED Requirement:
Step 4.1: Create Library Module
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.
- 2mo ago First seen · 764 lines · 0 tokens per session scan A fa3c6e23d29b
sdd-change-apply is a command published in the GitHub repository nahisaho/CodeGraphMCPServer (14 stars, last pushed 11mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,087 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.
sdd-change-apply compared with commands from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| sdd-change-applynahisaho/CodeGraphMCPServer | Command | 14 | 11mo ago | MIT | A | 0 | Claude Code |
| checklistgithub/spec-kit | Command | 148k | yesterday | MIT | A | 13 | Claude Code |
| clarifygithub/spec-kit | Command | 148k | yesterday | MIT | A | 27 | Claude Code |
| specifygithub/spec-kit | Command | 148k | yesterday | MIT | A | 13 | Claude Code |
| analyzegithub/spec-kit | Command | 148k | yesterday | MIT | A | 26 | Claude Code |
| convergegithub/spec-kit | Command | 148k | yesterday | MIT | A | 35 | Claude Code |
| implementgithub/spec-kit | Command | 148k | yesterday | MIT | A | 14 | Claude Code |