AI AgentsAgent File System Access: Designing the Blast Radius
The filesystem is an agent's most consequential tool surface. Path containment, read and write asymmetry, and why files are an injection vector.
ReadNotes on models, agents, and what inference costs
Practical writing for developers building with large language models — how they work, how to pick one, and how to keep the bill predictable.
AI Agents
AI AgentsAgent Handoff Patterns: Passing Work Without Losing It
Every handoff between agents is a compression step. Four patterns for transferring control, what each one drops, and how to build a handoff packet.
ReadAI AgentsAgent Loop Anatomy: The Twenty Lines That Run Everything
Every coding agent is the same short loop. Understanding its structure tells you where they fail and which parts are worth engineering.
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AI AgentsAgent Network Access Control: Egress Is the Real Risk
An agent with a shell and open network egress can exfiltrate anything it can read. How to scope outbound access without breaking the toolchain.
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AI AgentsAgent Observability Metrics That Actually Predict Failure
Averages hide every interesting agent failure. Which counters and histograms to define, what to use as the denominator, and how to alert without drowning in noise.
ReadAI AgentsAgent Permission Models: Who Decides What a Tool May Do
Per-call prompts, session grants, capability scoping and policy engines. How the main agent permission models behave once real work runs through them.
ReadAI AgentsAgent Prompt Versioning: Treat Prompts Like Deployed Code
A prompt edit is a production change with no compiler and no stack trace. How to give prompts a stable identity, trace them, roll them out and roll them back.
ReadAI AgentsAgent Queueing and Backpressure: When to Say No
An unbounded queue in front of an agent fleet hides overload until every task is stale. Queue design, backpressure signals and shedding work on purpose.
ReadAI AgentsAgent Regression Suites: Catching Breaks Before Users Do
A prompt edit can silently break a workflow that worked yesterday. Here is how to build a regression suite for an agent that actually blocks merges.
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AI AgentsAgent Resumption Patterns: Restarting Without Starting Over
Picking up a stopped agent run safely: why it stopped changes how you resume, and why the world may have moved while the agent was not looking.
ReadAI AgentsAgent Self-Correction: When Reflection Helps and When It Does Not
Asking a model to check its own work sometimes fixes real errors and sometimes invents new ones. What separates the two, and how to build for it.
ReadAI AgentsAgent Shell Access Safety: Giving a Model a Terminal
A shell tool is the most useful and most dangerous thing you can give an agent. How to grant it without handing over the whole machine.
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