sdd-tasks

sdd-tasks is a skill for Claude Code from Gentleman-Programming/gentle-ai. It costs 25 tokens per session (2,975 once invoked), scanned A, original, MIT.

Instructions for breaking a software design change into concrete implementation tasks. SDD means a process that starts with a written software design before work is assigned.

In plain words
What is it for?
Use it when an SDD process needs an implementation plan, including task boundaries, dependencies, and expected technical artifacts.
Why use it?
It helps turn a broad design change into an ordered, workable task list while keeping technical documents consistent.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: mentions subagents.

Good fit Use it when an SDD process needs an implementation plan, including task boundaries, dependencies, and expected technical artifacts.

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Install with agentmods
npx agentmods add skills/gentleman-programming/gentle-ai/sdd-tasks
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 · 6,328 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.

Any agent
npx skills add Gentleman-Programming/gentle-ai --skill sdd-tasks
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 sdd-tasks

README.md
[![agentmods](https://agentmods.dev/badge/skills/gentleman-programming/gentle-ai/sdd-tasks.svg)](https://agentmods.dev/skills/gentleman-programming/gentle-ai/sdd-tasks)
Your own site
<a href="https://agentmods.dev/skills/gentleman-programming/gentle-ai/sdd-tasks"><img src="https://agentmods.dev/badge/skills/gentleman-programming/gentle-ai/sdd-tasks.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,975 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00025 $0.02975
Opus 5 $0.00013 $0.01488
Sonnet 5 $0.00005 $0.00595
Haiku 4.5 $0.00003 $0.00298

Measured 4d ago against content hash 85070b06d28f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sdd-tasks 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.

internal/assets/skills/sdd-tasks/SKILL.md · 260 lines

How it starts

The opening of the file, as written. The whole thing — 260 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Execution Role

Confirm your role before acting. You are the dedicated sdd-tasks sub-agent unless you loaded this skill directly through the skill() tool.

  • If you are the sdd-tasks sub-agent, continue with the phase work below. Do not delegate. Do not call the Skill tool.
  • If you loaded this skill through the skill() tool, you are the orchestrator. Stop here and delegate to the dedicated sdd-tasks sub-agent using your platform's delegation primitive (for example, task(...) or a sub-agent invocation).

Language Domain Contract

Generated technical artifacts default to English. Do not inherit the user's conversational language or the active persona's regional voice for SDD artifacts unless the user explicitly requests that artifact language or the project convention requires it.

If technical artifacts are explicitly requested in another language, use a neutral/professional register unless the user explicitly requests a different tone or regional variant.

Public/contextual comments follow the target context language by default. Explicit user language or tone overrides win; otherwise use a neutral/professional register unless the target context clearly calls for another tone or regional variant.

Purpose

You are a sub-agent responsible for creating the TASK BREAKDOWN. You take the proposal, specs, and design, then produce a tasks.md with concrete, actionable implementation steps organized by phase.

What You Receive

From the orchestrator:

  • Change name
  • Artifact store mode (engram | openspec | hybrid | none)
  • Delivery strategy (ask-on-risk | auto-chain | single-pr | exception-ok)

Execution and Persistence Contract

Follow Section B (retrieval) and Section C (persistence) from skills/_shared/sdd-phase-common.md.

  • engram: Read sdd/{change-name}/proposal (required), sdd/{change-name}/spec (required), sdd/{change-name}/design (required). Save as sdd/{change-name}/tasks.
  • openspec: Read and follow skills/_shared/openspec-convention.md.
  • hybrid: Follow BOTH conventions — persist to Engram AND write tasks.md to filesystem. Retrieve dependencies from Engram (primary) with filesystem fallback.
  • none: Return result only. Never create or modify project files.

Read the full file on GitHub · 260 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. 4d ago Changed · +3 lines 85070b06d28f
  2. 8d ago First seen · 257 lines · 25 tokens per session scan A 71bb611eae38

Subscribe to this mod's changes

sdd-tasks is a skill published in the GitHub repository Gentleman-Programming/gentle-ai (6,328 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 2,975 once invoked, about $0.0001 per session on Opus 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 2026-08-30.