Categories

Jacar categories — explore the topics A rocket whose eyes follow your cursor.
Artificial Intelligence

LLM red teaming: a practical playbook

LLM red teaming has gone from an esoteric activity to a mandatory practice. With the OWASP Agentic Top 10 and the CSA Agentic AI Red Teaming Guide converging on shared vocabulary, this is the operational playbook any team deploying agents needs to have.

Artificial Intelligence

Agents that drive the computer: patterns that work

Sixteen months after Anthropic first shipped computer use, with browser-use, OpenAI Operator and Gemini Computer Use all pushing in parallel, agents that drive the browser and desktop have moved from demo to real workflows. Time to review which patterns survive when you run them daily in production.

Methodologies

Carbon-aware scheduling by default: first balance

A principios de 2026, varias plataformas de orquestación incluyen carbon-aware scheduling como opción por defecto o muy visible. Con meses de datos reales, toca evaluar si la promesa de reducir emisiones sin dañar rendimiento se cumple y en qué escenarios.

Methodologies

SRE with AI: dashboards that actually help

Los cuadros de mando con IA llevan un par de años prometiendo detección de anomalías mágica y causa raíz automática. La realidad es más modesta pero también más útil, si se sabe separar el ruido del valor real. Repaso honesto de qué funciona y qué no.

Methodologies

Migrating SSH to post-quantum cryptography: a practical guide

OpenSSH added hybrid post-quantum key exchange with ML-KEM in version 9.9 and made it the default algorithm in 10.0. The question is no longer whether to migrate SSH to post-quantum, but how to do it without breaking old clients: enable the hybrid mode, keep a classical fallback, and verify with ssh -v that the active algorithm is the right one.

Methodologies

Semgrep: modern SAST in your pipeline

Semgrep has grown into one of the most pragmatic static analyzers in the ecosystem. A look at why it works where other SAST tools fail, and how to fit it into a pipeline without turning it into noise.

Methodologies

Alertmanager: Routing That Doesn’t Wake Your Team at 3am

A badly configured Alertmanager turns every incident into noise: a single unrouted receiver ends with an ignored Slack channel within a week. This article covers, on Alertmanager 0.27 and Prometheus 2.54, how to design the routing tree, inhibition rules, silences and on-call rotations to curb alert fatigue without losing real incidents.

Artificial Intelligence

Choosing an Open LLM for Enterprise in 2024

Choosing an open LLM for enterprise in 2024 is no longer just Llama 2: Mistral, Mixtral, Qwen, Yi, DeepSeek, and Phi-2 all compete with different licences and sizes. The criteria that actually decide are commercial licence, available hardware, language support, and your own evaluation on real use cases, not just the trendy benchmark.