Purchase and Sale Agreement Review

Purchase and Sale Agreement Review is a skill for Claude Code, Codex from zgbrenner/agentcounsel. It costs 34 tokens per session (4,095 once invoked), scanned A, original, MIT.

A clause-by-clause review of a real-estate purchase and sale agreement from the buyer's, seller's, or lender's perspective.

In plain words
What is it for?
Use it before negotiating, signing, redlining, or closing a property purchase or sale.
Why use it?
A property contract can hide risks in deadlines, conditions, closing duties, and other provisions. It organizes those risks into a matrix, prioritized issue list, and key-dates table for attorney review.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before negotiating, signing, redlining, or closing a property purchase or sale.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zgbrenner/agentcounsel/psa-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 zgbrenner/agentcounsel --skill psa-review
Clone the repo
git clone --depth 1 https://github.com/zgbrenner/agentcounsel

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 Purchase and Sale Agreement Review

README.md
[![agentmods](https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/psa-review/github.svg)](https://agentmods.dev/skills/zgbrenner/agentcounsel/psa-review)
Your own site
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/psa-review"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/psa-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 Purchase and Sale Agreement Review

Your own site · 80×15
<a href="https://agentmods.dev/skills/zgbrenner/agentcounsel/psa-review"><img src="https://agentmods.dev/badge/skills/zgbrenner/agentcounsel/psa-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,095 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 $0.00034 $0.04095
Opus 5 $0.00017 $0.02048
Sonnet 5 $0.00007 $0.00819
Haiku 4.5 $0.00003 $0.00409

Measured 6d ago against content hash 2c0317a083c6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Purchase and Sale Agreement 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 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/real-estate/psa-review/SKILL.md · 319 lines

How it starts

The opening of the file, as written. The whole thing — 319 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purchase and Sale Agreement Review

Purpose

Produce a structured, attorney-ready issue-spotting review of a real estate purchase and sale agreement (PSA) from a single party's perspective. This skill reads the agreement clause by clause, identifies the risks the agreement creates for the reviewing party, organizes those risks into a risk matrix across the standard PSA categories, and delivers a prioritized issue list and a key-dates table for an attorney to verify before negotiation, signing, or closing.

This skill produces draft work product for attorney review only. It is not legal advice and does not constitute a final negotiating position or a recommendation to sign or close. The agreement itself, and the reviewing attorney's judgment, always control.

Use When

  • A user asks to "review this PSA," "review this purchase agreement," "flag the risks in this real estate contract," or "what should I push back on" in a property purchase or sale.
  • A buyer, seller, or lender needs a first-pass issue-spotting review of a PSA before negotiation, signing, or closing.
  • The user is preparing to redline a PSA and needs a structured, prioritized starting point.
  • A PSA is being amended or assigned and the user wants to understand baseline risk exposure from one party's perspective.

Required Inputs

  • The full purchase and sale agreement — uploaded or pasted. Do not review from a description, a partial excerpt, or a prior summary.
  • The review perspective — which party the review is for: buyer, seller, or lender. The same agreement reads differently from each, so the perspective must be stated before substantive work begins.
  • The property type — for example raw land, single-tenant retail, office, industrial, multifamily, condominium, or a portfolio.
  • The transaction posture — for example an arm's-length sale, a distressed or short sale, a 1031 exchange leg, an entity or membership-interest deal, a sale-leaseback, or an assignment of contract — and the stage the deal is at.
  • The jurisdiction — the state (and, where relevant, the county or municipality) where the property sits. Record it; do not assume a default.
  • The document set — every amendment, addendum, exhibit, side letter, escrow instruction, and title commitment that exists. If the PSA references documents that were not provided, note them as missing.

Read the full file on GitHub · 319 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. 6d ago First seen · 319 lines · 34 tokens per session scan A 2c0317a083c6

Subscribe to this mod's changes

Purchase and Sale Agreement Review is a skill published in the GitHub repository zgbrenner/agentcounsel (19 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 4,095 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 2026-09-03.

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