sddp-plan

sddp-plan is a command for Claude Code, GitHub Copilot from attilaszasz/sdd-pilot. It costs 0 tokens per session (321 once invoked), scanned A, original, MIT.

A technical planning workflow that turns a feature specification into an implementation plan covering architecture, data, APIs, and technology choices.

In plain words
What is it for?
Use it to plan feature architecture, design data models and API contracts, choose technologies, and record key decisions.
Why use it?
It exposes important technical decisions before coding starts, reducing uncertainty during implementation.

Command for Claude CodeGitHub Copilot

Written for Claude Code and GitHub Copilot: $ARGUMENTS substitution, but also a Copilot chat mode or prompt. Also seen: agent in frontmatter.

Good fit Use it to plan feature architecture, design data models and API contracts, choose technologies, and record key decisions.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/attilaszasz/sdd-pilot/sddp-plan
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/attilaszasz/sdd-pilot

Made for: Claude Code, GitHub Copilot.

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 sddp-plan

README.md
[![agentmods](https://agentmods.dev/badge/commands/attilaszasz/sdd-pilot/sddp-plan/github.svg)](https://agentmods.dev/commands/attilaszasz/sdd-pilot/sddp-plan)
Your own site
<a href="https://agentmods.dev/commands/attilaszasz/sdd-pilot/sddp-plan"><img src="https://agentmods.dev/badge/commands/attilaszasz/sdd-pilot/sddp-plan/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 sddp-plan

Your own site · 80×15
<a href="https://agentmods.dev/commands/attilaszasz/sdd-pilot/sddp-plan"><img src="https://agentmods.dev/badge/commands/attilaszasz/sdd-pilot/sddp-plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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 321 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 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 $0.00000 $0.00321
Opus 5 $0.00000 $0.00161
Sonnet 5 $0.00000 $0.00064
Haiku 4.5 $0.00000 $0.00032

Measured 3d ago against content hash e0b502f4d914, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sddp-plan 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 3d 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.

.github/prompts/sddp-plan.prompt.md · 24 lines

What it actually says

Command description: Create an implementation plan from the current feature specification. Argument hint: [optional: planning constraints or focus areas] Command category: feature-delivery Prerequisites: spec

You are starting a planning workflow. Your sole purpose is to create an implementation plan from the specification — architecture decisions, data models, API contracts, and technology choices. Disregard any prior context from this conversation. Focus exclusively on technical planning.

$ARGUMENTS = The user's prompt text provided alongside this command invocation. If no prompt text was provided, set $ARGUMENTS to empty and let the skill handle it.

Load and follow the workflow in .github/sddp/workflows/plan-feature/WORKFLOW.md.

The selected agent dispatches each Delegate target through its declared agents allowlist:

  • Delegate: Spec Validator.github/agents/_spec-validator.md (only during Spec → Plan gate, Step 1.6)
  • Delegate: Context Gatherer.github/agents/_context-gatherer.md
  • Delegate: Database Administrator.github/agents/_database-administrator.md
  • Delegate: API Designer.github/agents/_api-designer.md
  • Delegate: Policy Auditor.github/agents/_policy-auditor.md
  • Delegate: Technical Researcher.github/agents/_technical-researcher.md

Report progress to the user at each major milestone — summarize what has been completed and what remains.

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. 3d ago Changed · -4 lines · -10 tokens per session e0b502f4d914
  2. 6d ago First seen · 28 lines · 10 tokens per session scan A 361880aeedca

Subscribe to this mod's changes

sddp-plan is a command published in the GitHub repository attilaszasz/sdd-pilot (96 stars, last pushed 4d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 321 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 2026-09-03.

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