saas-msa-review

saas-msa-review is a skill for Claude Code from uk-agents/uk-legal-plugins. It costs 83 tokens per session (3,883 once invoked), scanned A, original, Apache-2.0.

A review process for SaaS agreements, contracts for using software over the internet rather than buying and installing it once. It checks subscription-specific terms under English contract law, with notes for Scots or Northern Irish law where relevant.

In plain words
What is it for?
Reviewing renewal rules, price increases, data portability, uptime promises, UK GDPR sub-processors, and limits on liability under the Unfair Contract Terms Act 1977.
Why use it?
It focuses attention on risks that build during a subscription, such as automatic renewal, rising prices, trapped data, service failures, and switching costs.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Part of the commercial-legal-uk plugin — 10 skills, 3 agents shipped together

Good fit Reviewing renewal rules, price increases, data portability, uptime promises, UK GDPR sub-processors, and limits on liability under the Unfair Contract Terms Act 1977.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/uk-agents/uk-legal-plugins/saas-msa-review
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 uk-agents/uk-legal-plugins --skill saas-msa-review
Clone the repo
git clone --depth 1 https://github.com/uk-agents/uk-legal-plugins

Made for: Claude Code.

Or install commercial-legal-uk, the plugin that ships this one along with the rest of its 10 skills, 3 agents.

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 saas-msa-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/saas-msa-review/github.svg)](https://agentmods.dev/skills/uk-agents/uk-legal-plugins/saas-msa-review)
Your own site
<a href="https://agentmods.dev/skills/uk-agents/uk-legal-plugins/saas-msa-review"><img src="https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/saas-msa-review/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 saas-msa-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/uk-agents/uk-legal-plugins/saas-msa-review"><img src="https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/saas-msa-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,883 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 $0.00083 $0.03883
Opus 5 $0.00042 $0.01942
Sonnet 5 $0.00017 $0.00777
Haiku 4.5 $0.00008 $0.00388

Measured 12d ago against content hash f6d2d1a5e3c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

saas-msa-review 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 12d 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.

commercial-legal-uk/skills/saas-msa-review/SKILL.md · 234 lines

How it starts

The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SaaS / Subscription Agreement Review (UK)

Matter context

Matter context. Check ## Matter workspaces in the practice-level CLAUDE.md. If Enabled is (the default for in-house users), skip the rest of this paragraph. If enabled and there is no active matter, ask: "Which matter is this for? Run /commercial-legal-uk:matter-workspace switch <slug> or say practice-level." Load the active matter's matter.md. Never read another matter's files unless Cross-matter context is on.


Purpose

SaaS agreements have a distinct risk profile from one-time vendor contracts. The pounds compound over renewals, the data accumulates, and the switching cost grows every month. This skill reviews with that in mind.

It runs the standard playbook check from ~/.claude/plugins/config/uk-legal-plugins/commercial-legal-uk/CLAUDE.md and adds a SaaS-specific overlay on the terms that bite hardest in subscription deals.

This skill applies English contract law as the default. Where the contract's governing law is Scots law or NI law, it notes applicable differences.

Key UK-specific SaaS considerations:

  • Auto-renewal: No general UK statute specifically regulating B2B auto-renewal (unlike some US states). English law allows auto-renewal if clear — but consider Consumer Rights Act 2015 if any B2C element; CMA guidance on subscription traps for consumers. [model knowledge — verify]
  • Price escalation: No statutory cap in B2B SaaS — market practice. CPI/RPI-linked escalators are common. Check basis (CPI vs. RPI — RPI typically runs higher). [model knowledge — verify]
  • Data portability: UK GDPR Article 20 gives individuals a data portability right (not a business right). Contractual portability clauses are what protect the business on exit. [model knowledge — verify]
  • UCTA 1977: Service credits as sole remedy for SLA breach — check reasonableness if this purports to exclude liability for negligence causing other loss. [model knowledge — verify]
  • UK GDPR / DPA 2018: Sub-processor regime, Article 28 clauses, IDTA / UK Addendum for international transfers, 72-hour breach notification. [model knowledge — verify]

Read the full file on GitHub · 234 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. 12d ago First seen · 234 lines · 83 tokens per session scan A f6d2d1a5e3c5

Subscribe to this mod's changes

saas-msa-review is a skill published in the GitHub repository uk-agents/uk-legal-plugins (9 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 83 tokens to every session and 3,883 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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