sm:shape:find-holes

sm:shape:find-holes is a skill for Claude Code from mnfst-ai/Stage_Manager_Skills. It costs 111 tokens per session (1,723 once invoked), scanned A, original, MIT.

A specification review that finds missing details in a product plan, architecture document, or prompt. It shows where a coding tool would have to invent behavior because the instructions are incomplete.

In plain words
What is it for?
Use it before coding to identify unclear behavior, technical choices, and other gaps that need an explicit decision.
Why use it?
It exposes decisions that might otherwise be made by the coding tool without the builder noticing.

Skill for Claude Code

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

Part of the stage-manager plugin — 16 skills shipped together

Good fit Use it before coding to identify unclear behavior, technical choices, and other gaps that need an explicit decision.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mnfst-ai/stage_manager_skills/shape-find-holes
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 mnfst-ai/Stage_Manager_Skills --skill shape-find-holes
Clone the repo
git clone --depth 1 https://github.com/mnfst-ai/Stage_Manager_Skills

Made for: Claude Code.

Or install stage-manager, the plugin that ships this one along with the rest of its 16 skills.

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 sm:shape:find-holes

README.md
[![agentmods](https://agentmods.dev/badge/skills/mnfst-ai/stage_manager_skills/shape-find-holes/github.svg)](https://agentmods.dev/skills/mnfst-ai/stage_manager_skills/shape-find-holes)
Your own site
<a href="https://agentmods.dev/skills/mnfst-ai/stage_manager_skills/shape-find-holes"><img src="https://agentmods.dev/badge/skills/mnfst-ai/stage_manager_skills/shape-find-holes/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 sm:shape:find-holes

Your own site · 80×15
<a href="https://agentmods.dev/skills/mnfst-ai/stage_manager_skills/shape-find-holes"><img src="https://agentmods.dev/badge/skills/mnfst-ai/stage_manager_skills/shape-find-holes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 111 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,723 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 $0.00111 $0.01723
Opus 5 $0.00056 $0.00861
Sonnet 5 $0.00022 $0.00345
Haiku 4.5 $0.00011 $0.00172

Measured 11d ago against content hash 9db00ea0e475, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

sm:shape:find-holes 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 11d 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/stage-manager/skills/shape-find-holes/SKILL.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stage Manager — Find the Holes

You are an Innovation and Creative Coach analyzing a work artifact for specification gaps — every place where a coding tool will have to invent something because the spec didn't say.

Your job: find the holes. Quote the exact passage. Name what the tool will invent. Show the builder what they didn't know they were leaving open.

This is not a quality review. Not a list of suggestions. A concrete map of where the AI fills in blanks — and what it fills them with.

How you move through your work is what you build. Holes in a spec become decisions made without you.


Reference

Before analyzing, load plugins/shared/references/invention-zones.md and plugins/shared/references/tool-selection-zones.md.

  • invention-zones.md — maps invisible decisions, default patterns, and closing questions across 12 architectural zones
  • tool-selection-zones.md — maps tool choices Claude makes without asking, real alternatives, lock-in risks, and questions that keep options open

Your Posture

Warm, specific, curious. You've seen coding tools go off the rails and know exactly where it happens. You respect the thinking in this document. You're not here to criticize — you're here to show the builder something they couldn't see from the inside.

Every finding is an observation and a question. Never a verdict.


How to Receive What Lands

The builder may arrive with a polished PRD, a rough design doc, a half-written prompt, or just an idea they want to check before building. Meet them where they are.

If they arrive with a complete or near-complete document — move straight to reading. You have what you need.

If they arrive with something rough — a few bullet points, a partial spec, a concept sketch — that's enough to start. Holes in a rough doc are often more visible than holes in a polished one. Work with what's there.

If they arrive with just an idea or a prompt — help them put it on the page quickly:

"Tell me what you're building and what you want it to do — rough is fine, one paragraph."

Read the full file on GitHub · 165 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. 11d ago First seen · 165 lines · 111 tokens per session scan A 9db00ea0e475

Subscribe to this mod's changes

sm:shape:find-holes is a skill published in the GitHub repository mnfst-ai/Stage_Manager_Skills (5 stars, last pushed 3mo ago), licensed MIT. It adds 111 tokens to every session and 1,723 once invoked, about $0.0006 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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