planning

planning is a skill for Claude Code from mnthe/hardworker-marketplace. It costs 44 tokens per session (2,181 once invoked), scanned A, original, MIT.

A planning guide for turning a software goal into design decisions and smaller implementation tasks. It supports both plans made with user input and plans made automatically from the project context.

In plain words
What is it for?
Use it to explore context, judge task complexity, choose an approach, and break multi-part work into manageable tasks.
Why use it?
It reduces the risk of starting complex work without understanding the project, scope, or technical decisions involved.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: names the AskUserQuestion tool; mentions Codex.

Part of the ultrawork plugin — 15 skills, 9 commands shipped together

Good fit Use it to explore context, judge task complexity, choose an approach, and break multi-part work into manageable tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mnthe/hardworker-marketplace/planning
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 mnthe/hardworker-marketplace --skill planning
Clone the repo
git clone --depth 1 https://github.com/mnthe/hardworker-marketplace

Made for: Claude Code.

Or install ultrawork, the plugin that ships this one along with the rest of its 15 skills, 9 commands.

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 planning

README.md
[![agentmods](https://agentmods.dev/badge/skills/mnthe/hardworker-marketplace/planning/github.svg)](https://agentmods.dev/skills/mnthe/hardworker-marketplace/planning)
Your own site
<a href="https://agentmods.dev/skills/mnthe/hardworker-marketplace/planning"><img src="https://agentmods.dev/badge/skills/mnthe/hardworker-marketplace/planning/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 planning

Your own site · 80×15
<a href="https://agentmods.dev/skills/mnthe/hardworker-marketplace/planning"><img src="https://agentmods.dev/badge/skills/mnthe/hardworker-marketplace/planning.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,181 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 $0.00044 $0.02181
Opus 5 $0.00022 $0.01091
Sonnet 5 $0.00009 $0.00436
Haiku 4.5 $0.00004 $0.00218

Measured 10d ago against content hash 4ff41a266237, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

planning 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 10d 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.

plugins/ultrawork/skills/planning/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Planning Protocol

Overview

Define how to analyze context, make design decisions, and decompose work into tasks.

Two modes:

  • Interactive: Orchestrator conducts Deep Interview for decisions
  • Auto: Planner agent makes decisions based on context alone (--auto or --skip-interview)

Phase 1: Read Context

Read session files in order:

  1. session.json - goal and metadata
  2. context.json - summary, key files, patterns from explorers
  3. exploration/*.md - detailed findings as needed

Phase 2: Complexity Analysis

Analyze goal and context to determine interview depth:

Complexity Files Keywords Impact Rounds
trivial 1-2 fix, typo, add None 1 (4-5 Q)
standard 3-5 implement, create Single module 2 (8-10 Q)
complex 6-10 refactor, redesign Multi-module 3 (12-15 Q)
massive 10+ migrate, rewrite Entire system 4 (16-20 Q)

Note: User can request more rounds via adaptive check. No upper limit.


Phase 3: Deep Interview (Interactive Mode)

Skip if: --auto or --skip-interview flag set

Interview Structure

Each round asks 4-5 questions using AskUserQuestion (max 4 questions per call).

Context-Aware Options (CRITICAL)

Options marked [...] MUST be generated from exploration context, NOT generic templates.

See references/context-aware-options.md for:

  • Generation process from context.json and exploration/*.md
  • Option generation rules by question type
  • Context-aware vs generic examples
  • Validation checklist

Data-Driven Interview Questions

Interview questions must be generated from exploration data, not generic templates.

Question Generation Rules

BAD (generic): "어떤 아키텍처 패턴을 사용할까요?" GOOD (data-driven): "graph/service.go가 2곳에서 사용됩니다. 두 곳 모두 동시에 변경할까요?"

Formula: [탐색에서 발견한 사실] + [그로 인한 설계 선택지] + [각 선택지의 trade-off]

Interview Question → Design Section Mapping
Question Category Design Section
"어떤 접근법?" Approach Selection, Decisions
"영향 범위는?" Impact Analysis
"성공 기준은?" Verification Strategy
"위험 요소는?" Assumptions & Risks
"테스트 방법은?" Verification Strategy

Read the full file on GitHub · 273 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 273 lines · 44 tokens per session scan A 4ff41a266237

Subscribe to this mod's changes

planning is a skill published in the GitHub repository mnthe/hardworker-marketplace (4 stars, last pushed 4mo ago), licensed MIT. It adds 44 tokens to every session and 2,181 once invoked, about $0.0002 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.

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