Khela Tech builds AI and workflow automation for Canadian small businesses. This is a write-up of one system we run in production: the operations platform behind a Toronto-area pet-boarding business. It is not a product tour. It is the one…
All chat model classes in LangChain extend BaseChatModel. The key methods: ChatOpenAI wraps the OpenAI chat completions API. Install: pip install langchain-openai. response_metadata contains the token usage, model name, and finish reason. This is where you track costs in production. Note:…
Imagine testing a strategy for January 2024 using the unemployment rate for January 2024. Sounds fine, until you remember that number was published in early February. Your backtest just read tomorrow's newspaper. That's look-ahead bias: using information that didn't exist yet at…
Most coding-agent token waste comes from resending tool output every turn. Measure it on your own Claude Code and Codex sessions before changing a thing. Every tool result in a coding-agent session is sent again on the next turn. The…
Debugging a request that crosses HTTP → WebSocket → raw TCP usually means juggling four or five tools: a REST client, a socket client, nc, a proxy, and a terminal. Every switch costs you context — headers here, frames there, logs somewhere else.
Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼 This is a submission for the Hacktoberfest Open-Source AI Challenge Week 4: Ghost in the Machine. PHANTOM SHELL: The House That Remembers is a retro horror game concept that turns a computer…
Hacktoberfest Open-Source AI Challenge: Ghost in the Machine Submission 👻🌼 This is a submission for the Hacktoberfest Open-Source AI Challenge Week 4: Ghost in the Machine. A repository can forget a feature without losing its fingerprints. I know the feeling of opening…
Configure your Apify MCP server with Actors and tools for seamless integration with MCP clients. Data for generative AI Data for AI agents Ready-to-run tools for your AI agents and apps. Just pick one and go. Actors for any job…
Google's Jobs tab aggregates Indeed, LinkedIn, Glassdoor and company career pages into one list, but it has no export and no API. I built a small Apify Actor that reads it and gives you one clean row per job. Here…
MAILERS is not experimental. Django 6.1 reached stable in August 2026, so this is current, not a beta feature. Before 6.1, a project had one global email backend, set with EMAIL_BACKEND, plus flat settings for host, port, credentials and TLS. MAILERS turns that into…
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