A practical guide to the public DJEN API, which provides Brazilian court notices such as summonses, citations, and other procedural publications. DJEN is the Diário de Justiça Eletrônico Nacional, Brazil’s national electronic court journal.

Use it to retrieve court communications by OAB number, state, and date, monitor notices that may start legal deadlines, and build integrations with the Comunica PJe API.

It explains how to query the service and documents operational details that are not fully covered by the official documentation, including Brazilian-IP restrictions.

djen — Skill for Claude Code and Codex by rvsanches

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 rvsanches/skills-datajud-djen --skill djen

Clone the repo

git clone --depth 1 https://github.com/rvsanches/skills-datajud-djen

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/rvsanches/skills-datajud-djen/djen/github.svg)](https://agentmods.dev/skills/rvsanches/skills-datajud-djen/djen)

Your own site

<a href="https://agentmods.dev/skills/rvsanches/skills-datajud-djen/djen"><img src="https://agentmods.dev/badge/skills/rvsanches/skills-datajud-djen/djen/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/rvsanches/skills-datajud-djen/djen"><img src="https://agentmods.dev/badge/skills/rvsanches/skills-datajud-djen/djen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 209 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,528 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00209	$0.01528
Opus 5.5	$0.00084	$0.00611
Sonnet 5.5	$0.00042	$0.00306
Haiku 4.5	$0.00021	$0.00153

Measured 2mo ago against content hash 6885000471dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

djen scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl 'https://comunicaapi.pje.jus.br/api/v1/comunicacao?numeroOab=123456&ufOab=SP&dataDisponibilizacaoInicio=2026-07-11&dataDisponibilizacaoFim=2026-07-12&pagina=1&itensPorPagina=50' \

skills/djen/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

API do DJEN / Comunica PJe (CNJ)

O DJEN (Diário de Justiça Eletrônico Nacional) centraliza as comunicações processuais — intimações, citações e demais publicações — de todos os tribunais brasileiros (Resolução CNJ nº 455; cobertura nacional obrigatória desde 2025). A API pública do Comunica PJe expõe essas comunicações para consulta.

Diferença-chave para o DataJud: o DataJud mostra movimentações (o que aconteceu no processo); o DJEN mostra o que dispara prazo contra o advogado. Para monitorar prazos, é o DJEN que importa.

Portal: https://comunica.pje.jus.br. Swagger: https://comunicaapi.pje.jus.br. Este guia registra o que a documentação não conta, aprendido operando a API em produção (projeto Judis, 2026).

Início rápido

# ATENÇÃO: precisa rodar de IP brasileiro (ver regra nº 1)
curl 'https://comunicaapi.pje.jus.br/api/v1/comunicacao?numeroOab=123456&ufOab=SP&dataDisponibilizacaoInicio=2026-07-11&dataDisponibilizacaoFim=2026-07-12&pagina=1&itensPorPagina=50' \
  -H 'Accept: application/json'

Sem autenticação, sem chave, sem cadastro. A resposta é { "count": <total>, "items": [ ... ] }.

As 7 regras de ouro (aprendidas em produção)

A API geo-bloqueia IPs fora do Brasil: HTTP 403. Funciona do seu notebook e falha no deploy — porque sua cloud function/container está em região estrangeira (us-central1, us-east-1…). Rode o backend em região brasileira (GCP southamerica-east1, AWS sa-east-1). Descobrimos em smoke test de produção: mesma requisição, 200 do Brasil, 403 dos EUA. O DataJud não tem esse bloqueio — é específico do Comunica.
itensPorPagina máximo é 50 — e o erro é silencioso. Acima de 50 a API responde items: [] com count preenchido, sem erro. Parece "sem resultados", mas é o parâmetro. Use exatamente 50 e pagine.
Página vazia ≠ fim dos dados. Sob instabilidade a API retorna páginas intermitentemente vazias no meio da paginação. Se acumulado < count, retente a mesma página com backoff antes de desistir.

Read the full file on GitHub · 104 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 104 lines · 209 tokens per session scan A 6885000471dc

Subscribe to this mod's changes

djen is a skill published in the GitHub repository rvsanches/skills-datajud-djen (32 stars, last pushed 3mo ago), licensed MIT. It adds 209 tokens to every session and 1,528 once invoked, about $0.0008 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Code Legal and compliance agent-skills brasil cnj datajud djen

djen next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
djenrvsanches/skills-datajud-djen	Skill	32	3mo ago	MIT	A	209	Claude Code, Codex
contingencia-reportautodevx/legal-skills	Skill	18	15d ago	MIT	A	107	Claude Code, Codex
contrato-reviewautodevx/legal-skills	Skill	18	15d ago	MIT	A	101	Claude Code, Codex
audiencia-classifierautodevx/legal-skills	Skill	18	15d ago	MIT	A	104	Claude Code, Codex
Triagem e Resposta a Solicitações de Titulares (LGPD)autodevx/legal-skills	Skill	18	15d ago	MIT	A	61	Claude Code, Codex
cnj-parserautodevx/legal-skills	Skill	18	15d ago	MIT	A	102	Claude Code, Codex
Geração de RIPD (Relatório de Impacto à Proteção de Dados)autodevx/legal-skills	Skill	18	15d ago	MIT	A	74	Claude Code, Codex

djen