shapeup

shapeup is a skill for Claude Code from nguyenvanphituoc/shapeup-sdlc-plugin. It costs 217 tokens per session (3,862 once invoked), scanned A, original, MIT.

A workflow skill for Shape Up, a product-development method that frames problems, explores solutions, and plans work before coding. It supports stages such as shaping, technical investigation, breadboarding, framing, and kickoff documents.

In plain words
What is it for?
Use it to shape a feature, investigate risky parts, map user interactions, write framing or kickoff documents, and run the full Shape Up workflow.
Why use it?
It turns an unclear feature request into shared planning documents and a structured handoff for implementation. This helps the team understand the problem and intended work before writing code.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code.

Part of the shapeup-sdlc-plugin plugin — 17 skills, 11 commands, 4 hooks shipped together

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/nguyenvanphituoc/shapeup-sdlc-plugin/shapeup
Any agent
npx skills add nguyenvanphituoc/shapeup-sdlc-plugin --skill shapeup
Clone the repo
git clone --depth 1 https://github.com/nguyenvanphituoc/shapeup-sdlc-plugin

Made for: Claude Code.

Or install shapeup-sdlc-plugin, the plugin that ships this one along with the rest of its 17 skills, 11 commands, 4 hooks.

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 shapeup

README.md
[![agentmods](https://agentmods.dev/badge/skills/nguyenvanphituoc/shapeup-sdlc-plugin/shapeup.svg)](https://agentmods.dev/skills/nguyenvanphituoc/shapeup-sdlc-plugin/shapeup)
Your own site
<a href="https://agentmods.dev/skills/nguyenvanphituoc/shapeup-sdlc-plugin/shapeup"><img src="https://agentmods.dev/badge/skills/nguyenvanphituoc/shapeup-sdlc-plugin/shapeup.svg" alt="Measured on agentmods" height="20"></a>
Per session 217 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,862 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 $0.00217 $0.03862
Opus 5 $0.00109 $0.01931
Sonnet 5 $0.00043 $0.00772
Haiku 4.5 $0.00022 $0.00386

Measured 6d ago against content hash 419fbdb53ec1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

shapeup 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 6d 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.

skills/shapeup/SKILL.md · 404 lines

How it starts

The opening of the file, as written. The whole thing — 404 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ShapeUp Skill — v2.1

Shape Up workflows for Claude Code — covering every stage from raw problem to wiring diagram to structured handoff documents. Run these before writing code.

Resource Files (Load On Demand)

This skill lazily loads detail from resource files. Read the relevant resource before executing any workflow:

Sub-command Resource to Read
/shapeup shaping resources/shaping.md
/shapeup spike resources/spike.md
/shapeup breadboarding resources/breadboarding.md
/shapeup framing-doc resources/framing-doc.md
/shapeup kickoff-doc resources/kickoff-doc.md
/shapeup breadboard-reflection resources/breadboard-reflection.md
/shapeup full Read resources/shaping.md first, then resources/breadboarding.md before B-phases, and resources/context-compaction.md for the run digest

Resource paths are relative to this skill's directory (resources/ beside this SKILL.md, wherever the plugin is installed). Multi-gate runs maintain a derived decision digest so each gate reads a compact slice instead of full prose — see resources/context-compaction.md and the "Run Workspace & Digest" section below.


Canonical Workflow Order

/shaping                    /breadboarding
─────────────────────────   ───────────────────────────────────
1. Problem frame             5. [optional] Fat marker sketch
2. Requirements (R)          6. Affordance tables + wiring
3. Solution shape (A)        7. SLICING → vertical scopes
4. Fit check (R ↔ A)
       ↓
   Spike docs
(for unknowns only)
       ↓
  breadboarding

The single most common mistake: putting slicing inside shaping. Slicing is the final phase of breadboarding — not shaping. Shaping ends at the fit check.


Which Sub-Command to Use

You have... Use...
A raw idea and want the full shaped pitch /shapeup full
A raw problem or feature idea /shapeup shaping
Shaped solution with unknowns to de-risk first /shapeup spike
Shaped solution ready for concrete wiring /shapeup breadboarding
A transcript of a problem/betting conversation /shapeup framing-doc
A transcript of a shaped project kickoff /shapeup kickoff-doc
An existing breadboard with design smells /shapeup breadboard-reflection

Read the full file on GitHub · 404 lines

Files

What ships with it

7 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. 6d ago First seen · 404 lines · 217 tokens per session scan A 419fbdb53ec1

Subscribe to this mod's changes

shapeup is a skill published in the GitHub repository nguyenvanphituoc/shapeup-sdlc-plugin (2 stars, last pushed 2d ago), licensed MIT. It adds 217 tokens to every session and 3,862 once invoked, about $0.0011 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.