Edition of November 6, 2026Use cases · with prompt · with sourcePTEN

Home / Rights and Bureaucracy

Rights and Bureaucracy · News · 🇧🇷 Brazil

Magalu cuts its legal contract cycle by 89% with the netLex platform

From January 2024 to June 2026 average review time fell from 176 to about 20 business days, and monthly completed reviews rose from 8 to 444.

Profession
Lawyer
Tools
netLex, Review Agent, Creation Agent
Source
itforum.com.br ↗
Country
🇧🇷 Brazil
Report date
November 5, 2026
Verified on
November 6, 2026

See more: AI for lawyers

Illustrative photo: Retail sector

What they did

Magalu adopted netLex's contract management platform for its legal contract cycle. The tool supports review, drafting and workflow with AI agents under rules set by the legal team (the company calls this controlled autonomy): the Review Agent compares documents to a company playbook, flags risk clauses and suggests changes; the Creation Agent builds contracts from templates and accepts natural-language edits. Approvals outside a user's authority still go to a human owner.

How it went

According to IT Forum on 5 November 2026, from January 2024 to June 2026 Magalu's legal review cycle fell 89%, from 176 to about 20 business days, and monthly completed reviews rose from 8 to 444. In the same piece, Gupy (also a client) cut commercial addendum creation from 38 to 25 days, legal response time from 1.58 to 0.31 days, and raised addenda signed with no changes from 16% to 60%. The new Review and Creation agents were announced that day after co-creation with large companies.

Good to know

The percentages come from netLex platform operations reported in the article; the new agents launched alongside that coverage. Keep the historical cycle reduction separate from what the newest agents will still deliver.

The prompt

I am a lawyer at [company] and need to review this [type] contract [paste excerpts with no sensitive customer data]. Using this internal playbook [paste preferred rules and clauses], flag clauses that diverge, rate the risk (high, medium, low), suggest alternative wording aligned with the playbook and list what a human still needs to approve before signing. Do not approve anything the playbook reserves for another authority.

Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).

Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Found a mistake?

Illustrative photo: Finance sector01
Rights and Bureaucracy🇧🇷 Brazil

Itaú puts AI in legal to read more than 90 million documents and run 2 million tasks a month

The legal solution, under the IARA platform with OpenAI models among others, reports efficiency gains of 20% to 80% in process stages.

LawyerTechnology ManagerOpenAIIARA
BlogSee prompt →
Illustrative photo: Legal sector02
Rights and Bureaucracy🇧🇷 Brazil

Habeas corpus written only with AI and a letter from the STJ to the OAB

An STJ justice sent a letter to the OAB over a habeas corpus petition with AI-fabricated citations and no original argument.

LawyerIA generativa
NewsSee prompt →
Illustrative photo: Legal sector03
Rights and Bureaucracy🇧🇷 Brazil

Lawyer Fined by the TSE for Case Law Invented by AI

A TSE justice fined a lawyer and notified the OAB after nonexistent citations created with AI.

LawyerIA generativa
NewsSee prompt →
Illustrative photo: Legal sector04
Rights and Bureaucracy🇧🇷 Brazil

When the "Rapporteur" Cited by AI Was a Bar Owner

A judge in Concórdia (SC) discovered that the rapporteur of a ruling cited in a filing was actually a bar owner.

LawyerParty to a LawsuitIA generativa
NewsSee prompt →
Illustrative photo: Legal sector05
Rights and Bureaucracy🇧🇷 Brazil

Case Law Invented by AI and the Fine of Ten Minimum Wages

A lawyer from Juazeiro (BA) was fined over a filing with fake rulings generated by AI and blamed the document on an intern.

LawyerIA generativa
NewsSee prompt →
Illustrative photo: Legal sector06
Rights and Bureaucracy🇧🇷 Brazil

The ChatGPT-written petition that earned a fine from the TSE

A lawyer filed a petition written with ChatGPT at the TSE and was fined for bad-faith litigation.

LawyerChatGPT
NewsSee prompt →
Illustrative photo: Legal sector07
Rights and Bureaucracy🇧🇷 Brazil

What happens when AI invents case law (TJSC)

A court fined a party who filed an appeal with nonexistent rulings and legal scholarship generated by AI.

LawyerParty to a LawsuitIA generativa
NewsSee prompt →
Illustrative photo: Public Sector sector08
Rights and Bureaucracy🇧🇷 Brazil

Porto Alegre tests an AI agent that checks public contracts in 2 hours instead of 35

In Procempa's OpenLab, the startup Inup built with the city's Comptroller General an agent that validates checklists for outsourced labor contracts.

AuditorPublic ServantAgente de IA
NewsSee prompt →

The newsletter · Caderno de IA

As 5 da semana

5 AI use cases with prompts, every Tuesday in your inbox. Free, with sources. The newsletter is written in Portuguese.

Get the free pack of 50 prompts when you subscribe

No spam. Unsubscribe anytime.

We use your email only to send the newsletter. See the privacy policy.