speckit-plan

speckit-plan is a skill for Claude Code from stefaniuk/loadout. It costs 19 tokens per session (2,466 once invoked), scanned A, original, MIT.

A planning workflow that turns a feature specification into a detailed implementation plan. It is designed for projects using the Speckit workflow and includes demonstrations that show how each planned part will be verified.

In plain words
What is it for?
Use it to create plan.md from spec.md before generating implementation tasks, provided the project is in Speckit mode.
Why use it?
It makes development work easier to organize by connecting requirements, design decisions, implementation phases, and checks that confirm the result works.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

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 skills/stefaniuk/loadout/speckit-plan
Any agent
npx skills add stefaniuk/loadout --skill speckit-plan
Clone the repo
git clone --depth 1 https://github.com/stefaniuk/loadout

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 speckit-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/stefaniuk/loadout/speckit-plan.svg)](https://agentmods.dev/skills/stefaniuk/loadout/speckit-plan)
Your own site
<a href="https://agentmods.dev/skills/stefaniuk/loadout/speckit-plan"><img src="https://agentmods.dev/badge/skills/stefaniuk/loadout/speckit-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,466 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 5.1 $0.00019 $0.02466
Opus 5 $0.00010 $0.01233
Sonnet 5 $0.00004 $0.00493
Haiku 4.5 $0.00002 $0.00247

Measured 5d ago against content hash 700de1d906da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

speckit-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 5d 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/skills/speckit-plan/SKILL.md · 227 lines

How it starts

The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Workflow Mode Guard

Use this skill only when the active local workflow mode is speckit.

Before proceeding:

  • Run ./scripts/hooks/workflow-mode.sh status.
  • If the active mode is superpowers, stop and tell the user to switch with make workflow-use mode=speckit or continue with the Superpowers workflow instead.
  • Do not mix speckit-* commands with Superpowers workflow skills in the same session or worktree.

You MUST adhere to the following mandatory requirements when creating a development plan.

Workflow context:

  • Input: spec.md (feature specification)
  • Output: plan.md (implementation plan)
  • Next phase: Tasks generation (/speckit-tasks)

Base requirements: Follow all rules in copilot-instructions.md, particularly:

  • Documentation ADRs
  • Toolchain version
  • Repository tooling

Show & Tell Sections (Mandatory)

Each phase and user story in plan.md must include a Show & Tell subsection. This subsection defines the demonstration steps that will be:

  1. Expanded with specific commands in tasks.md (next phase)
  2. Executed by the user during implementation to verify completion

AI Assistant Execution Requirement (Mandatory)

Show & Tell steps must be written so AI Assistant can execute and validate them without guessing.

  • Use explicit, runnable commands, URLs, and API calls
  • Include an expected result for every step (output text, status code, or visible UI state)
  • Avoid vague language such as "check it works" or "verify manually"
  • State pass/fail criteria clearly so steps cannot be skipped or missed during /speckit-implement
  • For infrastructure, scripts, documentation, or reporting tools, prefer lightweight checks such as file presence, command exit status, or output schema/keys instead of app-style browser flows

During implementation, execute every Show & Tell step and confirm the expected result before marking the phase or user story complete.

  • If a step fails because the implementation is wrong, fix it and re-run the step
  • If a step fails because the environment is not ready, record the blocker, add the missing setup step, and re-run when the environment is ready

Read the full file on GitHub · 227 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. 5d ago First seen · 227 lines · 19 tokens per session scan A 700de1d906da

Subscribe to this mod's changes

speckit-plan is a skill published in the GitHub repository stefaniuk/loadout (1 stars, last pushed 3d ago), licensed MIT. It adds 19 tokens to every session and 2,466 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 2026-08-31.

Related

Other skills, from other repositories

artifact-conventions

Defines preservation, format, and section rules for SDD specification artifacts (spec.md, plan.md, tasks.md, checklists). Use when editing feature-artifact files under specs/ / to prevent accidental corruption of cross-referenced IDs, priorities, and gating state.

attilaszasz/sdd-pilot · 59 tokens

plan-authoring

Reference material for writing implementation plans (technical context, architecture decisions, data models, API contracts, project-instructions alignment). Loaded on demand by plan-feature; not directly invokable.

attilaszasz/sdd-pilot · 41 tokens

task-generation

Reference material with the canonical task-format grammar and decomposition rules for plan-to-tasks expansion. Loaded on demand by generate-tasks; not directly invokable.

attilaszasz/sdd-pilot · 35 tokens

adr-authoring

Defines the canonical MADR format, lifecycle rules, numbering policy, and SAD catalog contract for standalone ADRs under specs/adrs/.

attilaszasz/sdd-pilot · 30 tokens

implementation-standards

Reference material with coding standards (defensive coding, error handling, testing patterns). Loaded on demand by the Developer sub-agent (.github/agents/developer.md); not directly invokable.

attilaszasz/sdd-pilot · 44 tokens

spec-authoring

Reference material for writing product, technical, and operational specifications (work-item priorities, requirement families, success criteria). Loaded on demand by specify-feature; not directly invokable.

attilaszasz/sdd-pilot · 40 tokens