gentle-sdd-new

gentle-sdd-new is a command for Claude Code from Gentleman-Programming/gentle-ai. It costs 13 tokens per session (100 once invoked), scanned A, a copy of sdd-new, MIT.

A command that starts a software-design change by exploring the codebase and drafting a proposal. SDD means describing and agreeing on a change before implementation.

In plain words
What is it for?
Use it to begin a new SDD change, review the exploration, and decide whether to continue with specifications and design.
Why use it?
It gives larger changes a repeatable path from investigation to a written proposal and approval.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: reads .claude/ paths.

Good fit Use it to begin a new SDD change, review the exploration, and decide whether to continue with specifications and design.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/gentleman-programming/gentle-ai/gentle-sdd-new
About the project

Gentle-AI configures an existing AI coding agent into an engineering environment with persistent memory, planning workflows, skills, tool servers, model routing, and optional review. Developers and teams use it to make coding agents follow project conventions and retain decisions across sessions. The catalogue entries are its skills, commands, agents, and instruction.

Gentleman-Programming/gentle-ai · 6,475 stars · on GitHub · gentle-ai.gentlemanprogramming.com

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/Gentleman-Programming/gentle-ai

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 gentle-sdd-new

README.md
[![agentmods](https://agentmods.dev/badge/commands/gentleman-programming/gentle-ai/gentle-sdd-new/github.svg)](https://agentmods.dev/commands/gentleman-programming/gentle-ai/gentle-sdd-new)
Your own site
<a href="https://agentmods.dev/commands/gentleman-programming/gentle-ai/gentle-sdd-new"><img src="https://agentmods.dev/badge/commands/gentleman-programming/gentle-ai/gentle-sdd-new/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 gentle-sdd-new

Your own site · 80×15
<a href="https://agentmods.dev/commands/gentleman-programming/gentle-ai/gentle-sdd-new"><img src="https://agentmods.dev/badge/commands/gentleman-programming/gentle-ai/gentle-sdd-new.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 100 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 91% copy Near-identical to another mod 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 $0.00013 $0.00100
Opus 5 $0.00006 $0.00050
Sonnet 5 $0.00003 $0.00020
Haiku 4.5 $0.00001 $0.00010

Measured yesterday against content hash d6b2353a9c38, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

gentle-sdd-new 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.

Origin

This is a copy

91% identical to sdd-new — 30 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

internal/assets/claude/commands/gentle-sdd-new.md · 10 lines

What it actually says

Intent: Start a new SDD change. Change name: $ARGUMENTS

Read .claude/skills/_shared/sdd-orchestrator-workflow.md under the workspace first; if absent, read ~/.claude/skills/_shared/sdd-orchestrator-workflow.md. Delegate this intent and arguments to that authoritative lazy workflow; follow its instructions rather than defining command-local policy.

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 · -18 lines d6b2353a9c38
  2. 6d ago Changed d252f74cd7be
  3. 8d ago First seen · 28 lines · 13 tokens per session scan A 8d5ae261dbee

Subscribe to this mod's changes

gentle-sdd-new is a command published in the GitHub repository Gentleman-Programming/gentle-ai (6,475 stars, last pushed yesterday), licensed MIT. It adds 13 tokens to every session and 100 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to sdd-new, differing in 30 lines, and is treated as a copy.

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