requirement-gap-diff

requirement-gap-diff is a skill for Claude Code, Codex, Cursor from ashishpatill/tell-proof. It costs 45 tokens per session (97 once invoked), scanned A, original, MIT.

A comparison step for checking a user brief against an existing website research package. It lists material that can be reused and requirements that are still missing.

In plain words
What is it for?
Use it to decide whether to customize existing material, address only the gaps, or create a complete walkthrough.
Why use it?
It prevents starting from scratch when relevant research already exists and makes unclear or uncovered requirements visible.

Skill for Claude CodeCodexCursor

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/ashishpatill/tell-proof/requirement-gap-diff
Any agent
npx skills add ashishpatill/tell-proof --skill requirement-gap-diff
Clone the repo
git clone --depth 1 https://github.com/ashishpatill/tell-proof

Made for: Claude Code, Codex, Cursor.

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-diff

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashishpatill/tell-proof/requirement-gap-diff.svg)](https://agentmods.dev/skills/ashishpatill/tell-proof/requirement-gap-diff)
Your own site
<a href="https://agentmods.dev/skills/ashishpatill/tell-proof/requirement-gap-diff"><img src="https://agentmods.dev/badge/skills/ashishpatill/tell-proof/requirement-gap-diff.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 97 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 $0.00045 $0.00097
Opus 5 $0.00023 $0.00048
Sonnet 5 $0.00009 $0.00019
Haiku 4.5 $0.00005 $0.00010

Measured 5d ago against content hash eb883dd72181, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

requirement-gap-diff 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.

.cursor/skills/requirement-gap-diff/SKILL.md · 13 lines

What it actually says

requirement-gap-diff

See agent-skills/web-design/website-domain-research/requirement-gap-diff/SKILL.md.

Engine: requirementGapDiff(domainId, requirement).

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 · 13 lines · 45 tokens per session scan A eb883dd72181

Subscribe to this mod's changes

requirement-gap-diff is a skill published in the GitHub repository ashishpatill/tell-proof (1 stars, last pushed 10d ago), licensed MIT. It adds 45 tokens to every session and 97 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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