From the field.
What Jigar learns building and training, shared as posts. Specifics over slogans.
Your agents aren't broken, your tools are: three questions to ask before you build one
When an agent misbehaves, almost everyone reaches for the prompt or the model. The fault is usually further down, in a tool that does too much, lies when it fails, or buries the answer in a wall of raw data. An AI tool is not a function. It is a contract the model has to trust. Here are the three questions I run before writing a single line of any tool.
Inside Recruiting Atelier: a runnable reference for the primitives of an agentic system
A working open studio that vets duplicates, plans the run, screens, scores, shortlists, and notifies. The whole pipeline lives in roughly ninety lines of supervisor code and a tool registry you can read in one sitting. Here is what is inside, why every piece is there, and what you can copy into your own stack.
How an agentic studio screens, scores and shortlists candidates for your hiring team
Open Recruiting Atelier and you do not see a generic AI dashboard. You see five named specialists doing the work a screening team would do: catching duplicates, checking the brief, scoring on four dimensions, ranking, drafting the dispatch. Drop one CV or fifty. Click any candidate to see exactly why they landed where they did. This is what AI for recruitment looks like when it respects your judgment instead of replacing it.
Code agents vs skill agents: when to give an agent the keyboard and when to give it the toolbox
Two ways to let an agent act in the world. Code agents write fresh code into a sandbox. Skill agents pick from a curated menu. The choice should be made in the kickoff, not the postmortem. Here is the framing I use with clients, the four axes where they diverge, and the hybrid pattern most production systems become.
Tool registry design for agentic AI: how the wrong registry kills accuracy before the prompt is read
I reviewed a system last month with 47 tools in its registry and a 22 percent wrong-tool-selection rate. The team was about to migrate from Sonnet to Opus to fix it. The prompt was fine. The registry was the bug. This is the audit pattern I run on every client codebase before we change anything else, the seven failure modes I see in production, and the numbers from the cleanup.
AI agent vs agentic AI: what the distinction actually means when you ship one
Vendors blur the line because "agentic" sells. The two terms describe different architectures, with different cost shapes, different observability needs, and different scoping conversations. Here is the framing I use with clients and the three-question test for which one your project actually needs.
Gemini 3.5 Flash vs Sonnet 4.6: should you re-route your agent stack?
Google shipped 3.5 Flash this week with a "frontier intelligence plus action" pitch and a 4x output-tokens-per-second claim. If your routing layer is on Sonnet 4.6 today, this is the week to re-benchmark. Here is what I am actually moving, what I am leaving alone, and the cost-per-completed-task maths nobody is doing in public.
MCP governance just became a product: what Databricks Unity AI Gateway changes for enterprise agents
Every enterprise MCP deployment I have audited in the last six months has been hand-rolling tool-access policy, payload logging, and per-team cost limits on top of a gateway someone wrote in two days. Databricks just shipped that as a product. Here is what it actually changes, where the gaps still are, and the migration I would run for a Databricks shop.
Three paradigms of LLM memory: implicit, explicit, and agentic
A new survey from BigAI-NLCO splits LLM memory into three layers. Most production agents I review have built the middle one, called it memory, and skipped the layer on top. Here is what the taxonomy actually buys you.