How to Write Better Prompts: The CO-STAR Framework (Tested)
Most prompt advice boils down to "be specific," which is true and useless. After months of running the same controlled test — five people, same task…
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Best Prompt Injection Detection and Defense Tools for Enterprise AI Agents in 2026
Prompt injection becomes a different security problem when an AI agent can send an email, update a CRM, modify a record, or trigger a workflow. Dete…
Claude Code's keep-coding-instructions kept 1,044 tokens in the full prompt, 0 in the short one, and 18 of 18 fixes matched
On Claude Code 2.1.289 with Opus 5.5, keep-coding-instructions: true decided whether a 1,044-token # Doing tasks section stayed in the system prompt…
Getting Real Work Out of Two Kimi K2 Conversations: A Prompt Template for Code and Data Tasks
I'm leony, an indie maker. I run kimi-k2.net , a small independent web chat for Kimi models (it calls the Moonshot AI API under the hood, but it isn…
Tell the AI What It Cannot Touch: Why Hard Constraints Beat Better Prompts
Most people ask an AI for "a better resume" and get back something that reads well and is wrong. The numbers have been rounded up, the second page h…
Non-English Prompts Cost More Tokens, Context and Money in Most LLMs
Claude Opus 5 costs $5 per million input tokens whether a prompt arrives in English or in Russian. What changes between the two languages is how man…
Once I wrote in the MCP tool description when to use the tool, AI agents called it
Summary I built an MCP tool that assigns multiple independent tasks to subagents and has the subagents execute them in parallel. Below, I call this…
My AI Development Prompts
I'm not going to lie, deep down I still love to actually build things (UI and code), but the simple truth is I still have more ideas then time and I…
12 Prompt Habits to Change for Claude Opus 5.5
Claude Opus 5.5 came out on September 22. It costs $4 per million input tokens and $20 per million output tokens, 20% less than Opus 5. Anthropic sa…
Image prompting lessons: stop describing the image, hand the model a reference sheet
Thirteen rounds, one afternoon, one word. The word was ONLINE and I wanted it drawn in a particular chunky cartoon style. I have the whole log becau…
What to do in such situations: Developing an app integrated with generative AI
Hello, I’m pj-corridor, an engineer. In this article, I will introduce the challenges I faced while developing an application integrated with genera…
When A User Tells The Bot It's Wrong, And The Bot Just Believes Them
A subtle failure mode shows up constantly in deployed conversational systems that almost never gets caught in standard testing, because it only appe…
When The Bot Has Three Tools Available And Confidently Picks The Wrong One
Once a conversational system gets wired up to more than one external tool, database lookup, calendar booking, payment processing, a new failure cate…
Why Your Prompts Fail (and the Anatomy That Works)
Most prompts fail not because you forgot a magic phrase but because you are driving a probabilistic sequence model with a brittle text interface. Th…
Master Prompts in 2026: Stop Prompting Like It's 2023
Master Prompts in 2026: Stop Prompting Like It's 2023 I still see people paste a 40-line “act as a senior expert with 20 years of experience” block…
The AI Agent Playbook: 4 Frameworks to Reclaim Focus
🎙️ Short on time? Explore the 10-Min Interactive Visual Deck first ➔ In the modern landscape of knowledge work, the primary operational bottleneck i…
Why You Should Double-Check AI Output (Before It Ships)
Why You Should Double-Check AI Output (Before It Ships) When AI output goes unchecked, the costs compound. A single hallucinated fact takes a few mi…
Engineering Reliability into AI Agent Code Generation. Part II
Part II — The Components Part I defined eight failure modes of agent code generation (P1–P8), mapped the architecture onto the agentic-patterns cata…
Caveman Ultra Mode: Make Your Coding Agent Say Less, Not Think Less
AI coding agents have a communication problem. They can be technically capable and still make a development loop feel slow because every small actio…
I Thought My Multi-Agent Debate Engine Was Broken. The Real Bug Was the Prompt.
v0.2.1 RELEASED — Aug 28, 2026. Release notes · Field test report · PyPI v0.2.1 Update: The 2,333->359 join collapse described in this article is…
I Told the AI "A Scanner Flagged This" — and It Agreed With Everything
I gave two AI models the same 200 pieces of code, the same prompt, the same question. One of them removed 51% of the false alarms. The other removed…
The Critic Panel: Teaching an AI Pipeline to Check Its Own Work
Every critic in the main video-generation service's pipeline started with the same structural limit: it graded one picture. Is this frame composed c…
Reusing A Prompt System Across Clients Without Turning It Into A One Size Fits All Failure
Building a custom GPT for one ministry client teaches you something specific about that ministry. Building the third or fourth one for a different g…
Seedance 2.5 Prompting: A Practical Guide to Better AI Videos
Writing a good Seedance 2.5 prompt is less about adding more adjectives and more about giving the model a clear sequence of instructions. For exampl…
Socrates Was the World's First — and Best — Prompt Engineer
Socrates Was the World's First — and Best — Prompt Engineer And the 6 Socratic Question Types Are Still the Most Powerful Prompt Templates in 2026 T…
Every Rule I Added Made It Worse: How Prompt Bloat Killed My Voice
I measured the system prompt from my old setup last week. It came to 224,833 characters, roughly 56,000 tokens, on every single call. Ninety percent…
One Prompt Can Make a Game Demo. That Is Not the Same as Making a Game.
A playable first-person shooter generated from one prompt would have sounded absurd not long ago. Now, videos of AI-built browser games that resembl…
"Do Not Duplicate the Character" Duplicated the Character
We built a thing that takes one photo of a child and paints that child into a pre-written 10-page picture book. Thirty books, eleven pages each, on…
Opus 5: The Cost of Instruction Conflicts
What does a conflicting instruction set cost you? For one, time and tokens, not to mention the constant headache to figure out the "why?". An instru…
Four AI Agent Skills That Make Coding Workflows Sharper
AI coding agents are often discussed as though they are a single tool: ask for code, receive code. In practice, useful agent work has stages. You ne…