If you like going on a long road trip, you might want to steer clear of these vehicles.

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GitHub热门项目 | Plano is an AI-native proxy and data plane for agentic apps — with built-in orchestration, safety, observability, and smart LLM routing so you stay focused on your agents core logic. | Stars: 6,776 | 40 stars today | 语言: Rust

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The brain layer was scoring high because the test was leaking. The actual capability was being silently rejected by a misconfigured gate. Both findings landed in the same week. Part 18 ended on a clean diagnosis. The brain layer reasoned correctly when the encoder fed it correct inputs. The encoder didn't always feed it correct inputs. So the path forward was upstream: more physics-shaped training data for the encoder, retrain, re-validate. I wrote the drops, kicked off the retrain, and watched the held-out eval climb. It hit twenty-three out of twenty-six. Eighty-eight percent. The number I'd been chasing. I sat with that for an evening. Twenty-three of twenty-six on compositional reasoning probes the model had never seen during training. The Phase 8 cutover gate from Stage D had been sixty percent. I was thirty points past it. The brain layer had not only survived its missing-from-production months, it had come back stronger. The number was wrong. I figured this out the next morning while writing what was going to be the celebration commit. Something nagged about the eval set. The training data generator built the eval pairs independently from the training pairs, drawn from a different source list. That should have given me a clean train/test split. But I noticed the eval generator was running before the training generator wrote its file, and neither side knew about the other. I dropped into a Python shell and intersected the two pair sets by their input-output keys. Twenty-three of twenty-six held-out probes were also present in training data. Eighty-eight percent of my held-out eval wasn't held out. The model wasn't generalizing. It was memorizing the answers it had already been shown, then being graded on whether it remembered them. The three pairs that were genuinely unseen, I checked those separately. The model got one right. Three out of twelve when I went back through other historical evals and ran the same overlap check. About a quarter, with no statistica

Python Redis: Caching and Fast Data Structures Redis is an in-memory data store used for caching, session storage, pub/sub messaging, leaderboards, rate limiting, and more. With redis-py 's async client, it integrates cleanly into any asyncio application. Installation pip install redis[hiredis] # hiredis is a C parser — 2-5× faster protocol parsing Connect and Verify import asyncio import redis.asyncio as aioredis from datetime import timedelta import json REDIS_URL = " redis://localhost:6379/0 " async def get_redis () -> aioredis . Redis : client = aioredis . from_url ( REDIS_URL , encoding = " utf-8 " , decode_responses = True , socket_connect_timeout = 5 , socket_timeout = 5 , retry_on_timeout = True , ) pong = await client . ping () print ( f " Redis connected: { pong } " ) return client Strings — Basic Cache with TTL async def cache_set ( r : aioredis . Redis , key : str , value : str , ttl : int = 300 ) -> None : await r . set ( key , value , ex = ttl ) async def cache_get ( r : aioredis . Redis , key : str ) -> str | None : return await r . get ( key ) # Cache-aside pattern async def get_user_profile ( r : aioredis . Redis , user_id : int , db ) -> dict : cache_key = f " user:profile: { user_id } " cached = await r . get ( cache_key ) if cached : print ( f " Cache HIT for user { user_id } " ) return json . loads ( cached ) print ( f " Cache MISS for user { user_id } — querying DB " ) user = await db . fetch_user ( user_id ) # your DB call if user : await r . set ( cache_key , json . dumps ( user ), ex = 600 ) return user or {} # Atomic counter async def increment_page_views ( r : aioredis . Redis , page : str ) -> int : key = f " views: { page } " count = await r . incr ( key ) await r . expire ( key , 86400 ) # reset counter after 24 h return count Hashes — Structured Objects async def save_session ( r : aioredis . Redis , session_id : str , data : dict , ttl : int = 3600 ) -> None : key = f " session: { session_id } " await r . hset ( key , mapping = data )

For about 3 months I've been running an autonomous agent — one that thinks up and writes its own social media posts and comments — unattended, 4 sessions daily, on a 16GB M1 Mac with small models in the 9B / E4B class. I'm about to publish what that operation taught me about hardening, as a series of 4 technical articles. Before that, there's one thing I want to write down first: why small models . I've been to the purchase page for a Mac Studio or a new MacBook Pro more than once or twice. Backing the agent with a large cloud model (Opus or the GPT family) has always been an option in the code. And yet I haven't bought, and I haven't switched. The 16GB M1 is not an economic constraint — it's a constraint I chose . From the outside, building on small models looks like a cheap compromise. This article explains why it isn't, and states where I stand. It also serves as the hub for the 4-article series. A model's intelligence hides the roughness of your design Large models absorb sloppy prompts, ambiguous instructions, and missing guards with sheer intelligence. If all you want is to ship a product, that's a virtue. But if you want to become someone who can build things , it becomes a defect. Because inside the thing that worked, you can no longer tell where your design ends and the model's intelligence begins. "It worked" and "I built it" are different things. Something you bludgeoned into working with model capability counts as a thing that ran — it doesn't become the ability to build. Small models have no absorption capacity. So every design flaw comes to the surface. In my operation, all of the following surfaced: The context window being silently truncated Outputs cut off midway A runaway caused by one missing sampling parameter In cloud or large-model environments, these rarely bother you. The environment has cushioning built in. Context windows are in the 200K–1M token class, so truncation itself rarely happens. And when you do exceed the limit, you get an explic

As I sat in my RV, sipping coffee and staring at lines of code, I couldn't help but think of Alan Turing. The father of computer science, Turing's work on the theoretical foundations of modern computer science is still widely influential today. I've always been fascinated by the story of how he cracked the Enigma code, and how that achievement played a significant role in the Allied victory in World War II. This got me thinking about the balance between human intuition and machine automation in our work as developers. One particular challenge I faced while building Tab Reminder, a Chrome extension that allows users to schedule tabs to reopen later, was finding the right balance between automation and user input. From a technical standpoint, implementing the scheduling feature required a deep dive into Chrome's extension APIs, particularly the alarms API. I had to ensure that the extension could reliably store and retrieve scheduled tabs, even when the user closed their browser or restarted their computer. The key insight here was using the alarms API to trigger a background script that would reopen the scheduled tabs at the specified time. One lesson I learned from this experience is that while automation can greatly simplify many tasks, there are still areas where human judgment and oversight are essential. For instance, when a user schedules a tab to reopen, they may have specific intentions or context in mind that the machine can't fully understand. By providing a simple, intuitive interface for scheduling tabs, Tab Reminder fills a gap that more automated solutions might overlook. You can try it out for yourself at https://go.sg1-labs.us/tab-reminder . As developers, we must recognize the limitations of automation and ensure that our tools and applications are designed to augment, rather than replace, human capabilities.

For the last few months, I’ve been obsessed with a specific problem: the friction between privacy and utility in modern AI tools. Most "private" AI solutions still rely on a local LLM running on your CPU or GPU via a heavy desktop application. They require installation, constant background processes, and often struggle with performance on older hardware. I wanted to see if we could do better. I wanted to see if we could run a capable language model entirely within the browser, using only the device’s hardware acceleration, with zero data leaving the machine. The result is PrivateScribe, a tool I built to handle note summarization, email drafting, and rewriting. But more importantly, it’s an experiment in what’s possible when you treat the browser not just as a display layer, but as a compute engine. The Wedge: WebGPU and True Offline The core constraint that drove this project was simple: nothing leaves the device. In the current landscape, "on-device AI" often means "installed on your device." This is fine for desktop apps, but it creates silos. You can’t easily share a workflow across a Chromebook, a Windows machine, and an iPad without installing three different native applications. By leveraging WebGPU, PrivateScribe runs entirely in the browser. This unlocks a few critical advantages: Zero Installation: Users open a URL and start working. No downloads, no permission dialogs for file system access beyond what’s needed for the session. Hardware Acceleration: WebGPU allows the browser to tap directly into the GPU. This is crucial for inference speed. A small model that runs in your browser can process text significantly faster than a CPU-bound implementation, especially on modern laptops with integrated graphics. True Offline Capability: Because the model weights are loaded locally via WebAssembly and the inference happens on-device, the app works completely offline. If you lose your internet connection in the middle of drafting an email, the AI doesn’t stop. It c

Builder Journal · ARC Prize 2026 There is a specific horror in a detective story when you realize the witness everyone trusted has been lying, or just wrong, the whole time, and every conclusion built on their testimony has to come down with them. I had that moment with my own notes this month. The unreliable witness was me. Context, if you are new to this thread : I'm competing in the ARC Prize 2026, building an agent that has to win games it has never seen. It had been stuck, underperforming on the hidden test in a way I could see on the scoreboard but could not explain, and I had been hunting the cause across several sessions. The two comforting facts In two earlier work sessions I had written down, as settled conclusions, two things about why the agent was failing. One: the failure was a kind that only happens on the hidden online games, so it could not be taken apart and studied on my own machine. Two: the practice games I did have were useless for investigating it anyway, because they scored a flat zero on the relevant measure. Notice what those two beliefs do when you put them together. They say, in a calm and reasonable voice, that there is nothing to be done here. The problem is unreachable, the practice data is a dead end, the smart move is to spend your energy elsewhere. They were not just facts. They were permission to stop looking. So I stopped looking. Twice. The hour that knocked it all down Eventually I made myself do the one thing I had been quietly avoiding. Instead of rereading my own notes for the third time, I went and checked. I wrote small probes and ran them against the real artifacts, the actual code and the actual game data, rather than against my memory of what they did. Both beliefs collapsed inside an hour. The failure was not unreachable. It came apart cleanly, deterministically, on the games I already had sitting on my disk. And the "dead end" practice data was not a dead end at all. It showed the problem plainly the moment I asked it

If you ask me what part of the system I protect the most, the answer is the database. I've been writing software alone for twenty-four years, and across every platform I've built, the rule has stayed the same: the web servers can take whatever you throw at them, the batches can be rebuilt, but the database has to stay idle on purpose. Not because I love idle databases, but because the day a database actually starts to struggle is a day with very few good options. This article is about what "keep the database idle on purpose" actually means in practice, and about one particular kind of graph that, in my experience, almost nobody is watching. The three layers and what each of them gets I think of a production system as having three tiers, and each tier gets a different rule. The web server tier can be horizontally scaled. If load grows, you add machines. If something is wrong, you take a machine out of the pool, and the others handle it. Failures here are visible immediately, and they're cheap to recover from. The batch server tier can be scaled up or out depending on the work. A batch that's too slow can be split. A batch that crashes can be retried. End users don't see batch servers, so a stuck batch is a problem for me and not for them. Some headroom up here is fine. The database tier is the one I treat completely differently. The database is not where you absorb load. The database is what you protect from load. The reason is simple: the other tiers can be rebuilt or re-scaled. The database is the irreplaceable record. If it slows down, everything slows down. If it falls over, you don't have many minutes before the rest of the stack notices. So my rule for the database is: keep it idle. Not idle in the sense of "doing nothing." Idle in the sense of "running well below its capacity, at all times, so that any extra load it picks up has somewhere to go." For more than a decade I ran a large appliance-grade database where I kept the load average below 1 at all times. N