requirement-gap-scan

requirement-gap-scan is a skill for Claude Code, Codex from s977043/PlanGate. It costs 81 tokens per session (410 once invoked), scanned A, original, MIT.

A review that scans initial requirements for missing details, unclear points, hidden assumptions, exceptions, and items that should be excluded. Requirements are the agreed description of what a feature must do.

In plain words
What is it for?
Use it to suggest missing functional and quality requirements, identify unmentioned edge cases, and clarify what is inside or outside the work.
Why use it?
It reduces the chance of building from an incomplete or ambiguous request.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions Codex.

Good fit Use it to suggest missing functional and quality requirements, identify unmentioned edge cases, and clarify what is inside or outside the work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/s977043/plangate/requirement-gap-scan
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 s977043/PlanGate --skill requirement-gap-scan
Clone the repo
git clone --depth 1 https://github.com/s977043/PlanGate

Made for: Claude Code, Codex.

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 requirement-gap-scan

README.md
[![agentmods](https://agentmods.dev/badge/skills/s977043/plangate/requirement-gap-scan/github.svg)](https://agentmods.dev/skills/s977043/plangate/requirement-gap-scan)
Your own site
<a href="https://agentmods.dev/skills/s977043/plangate/requirement-gap-scan"><img src="https://agentmods.dev/badge/skills/s977043/plangate/requirement-gap-scan/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 requirement-gap-scan

Your own site · 80×15
<a href="https://agentmods.dev/skills/s977043/plangate/requirement-gap-scan"><img src="https://agentmods.dev/badge/skills/s977043/plangate/requirement-gap-scan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 410 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 $0.00081 $0.00410
Opus 5 $0.00041 $0.00205
Sonnet 5 $0.00016 $0.00082
Haiku 4.5 $0.00008 $0.00041

Measured 9d ago against content hash 9bd21cc75679, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

requirement-gap-scan 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 9d 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.

.agents/skills/requirement-gap-scan/SKILL.md · 43 lines

What it actually says

Requirement Gap Scan

初期要求を機能 / 非機能 / 対象外 / 例外条件 / UX期待値の観点で体系的にスキャンし、明文化されていない要件を抽出する Skill。

カテゴリ

Scan

想定 Phase

WF-02 Requirement Expansion

入力

  • context artifact(WF-01 出力)
  • 初期要求(ユースケース / ユーザーストーリー)

出力

追加要件候補の一覧:

  • 機能要件の抜け
  • 非機能要件の抜け
  • 未言及のエッジケース
  • 暗黙の前提
  • 対象外として確認すべき項目

使い方

  • WF-02 で requirements-analyst が呼び出す
  • 出力は acceptance-criteria-build の入力にもなる

関連

  • Workflow: docs/workflows/02_requirement_expansion.md配布対象外install.sh --claude / plugin / Codex の 3 経路とも導入先には配置されない。解決できない場合は本 Skill の記述を代替正本とし、「正本 <path> を参照できなかった」と明示する)
  • 連携 Skill: nonfunctional-check / edgecase-enumeration / acceptance-criteria-build
  • Rule: Rule 2
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. 9d ago First seen · 43 lines · 81 tokens per session scan A 9bd21cc75679

Subscribe to this mod's changes

requirement-gap-scan is a skill published in the GitHub repository s977043/PlanGate (2 stars, last pushed today), licensed MIT. It adds 81 tokens to every session and 410 once invoked, about $0.0004 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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