jidonglab

1 project a week. Building and sharing the entire process — from idea to shipped product in 7 days. Currently: AI news automation.

korea Joined on Feb 25, 2026 jee599@naver.com https://jidonglab.com/

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jidonglab

Mar 19

Claude Code Agent Teams Can Spawn Agents. It Just Doesn't Know Which Ones to Use.

#ai #claude #productivity #opensource

4 min read

jidonglab

Mar 6

What 100 Trending GitHub Projects Tell Us About Where AI Is Actually Going

#ai #opensource #productivity #webdev

4 min read

jidonglab

Mar 3

Anthropic Dropped 13 Free Courses — I Broke Down Every Single One

#ai #productivity #claude #beginners

3 min read

jidonglab

Sep 20

Anthropic Batch API: 112 of My 1,842 Jobs Never Came Back

#ai #claude #python #automation

6 min read

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jidonglab

Sep 19

all-MiniLM-L6-v2 Truncates at 256 Tokens: Your RAG Chunks Are Half Blind

#llm #machinelearning #python #ai

6 min read

jidonglab

Sep 19

GitHub Actions pull_request Runs on a Merge Commit You Never Pushed

#devops #tooling #tutorial

6 min read

jidonglab

Sep 18

Claude Code /compact Forgot 31% of My Rules: 20 Trials, 1 Fix

#claudecode #ai #productivity #automation

6 min read

jidonglab

Sep 18

LLM-as-a-Judge Position Bias: Swap A and B and the Winner Flips

#llm #ai #machinelearning #python

6 min read

jidonglab

Sep 17

GITHUB_TOKEN Doesn't Trigger Workflows. My Release Never Shipped

#devops #tooling #tutorial

6 min read

jidonglab

Sep 17

Anthropic SDK max_retries: 1 Request Became 63 API Calls

#ai #claude #devops #tooling

6 min read

jidonglab

Sep 16

tiktoken vs count_tokens: My Claude Budget Was 17% Off

#llm #ai #python #performance

6 min read

jidonglab

Sep 16

Speculative Decoding Acceptance Rate: My LLM Got 47% Slower

#llm #performance #machinelearning #ai

6 min read

jidonglab

Sep 15

Docker Compose depends_on Doesn't Wait. Neither Does pg_isready

#docker #devops #tooling #tutorial

6 min read

jidonglab

Sep 15

Ollama keep_alive: My Model Reloaded 214 Times in One Day

#ai #llm #performance #python

7 min read

jidonglab

Sep 14

vLLM Preemption: Why 1 in 50 Requests Restarts From Scratch

#llm #performance #machinelearning #python

6 min read

jidonglab

Sep 14

Nginx proxy_buffering Ate My LLM Stream: 11s to First Token

#ai #devops #tooling #tutorial

7 min read

jidonglab

Sep 13

git rerere: Stop Resolving the Same Merge Conflict Twice

#tooling #cli #productivity #tutorial

6 min read

jidonglab

Sep 13

Claude Code in 4 Git Worktrees: 23 Tasks, 9 Collisions, 1.5x Speed

#claudecode #ai #productivity #devops

7 min read

jidonglab

Sep 12

Prompt Caching: Why cache_control Writes But Never Reads

#llm #ai #performance #agents

6 min read

jidonglab

Sep 12

MCP Server stdout: One console.log Kills the Connection

#ai #tooling #tutorial #cli

5 min read

jidonglab

Sep 11

I Ran claude -p in Cron 2,114 Times. 41 Failed Silently

#claudecode #ai #automation #productivity

5 min read

jidonglab

Sep 11

I Cut Voice AI Latency From 4.2s to 780ms with Deepgram + ElevenLabs

#ai #llm #performance #agents

6 min read

jidonglab

Sep 10

HNSW ef_search: Why Your Vector Search Misses the Right Chunk

#ai #llm #machinelearning #performance

6 min read

jidonglab

Sep 9

Your GitHub Actions Cache Misses on Every PR: The Branch Scope Rule

#devops #tooling #tutorial

5 min read

jidonglab

Sep 9

The AI Code Review Bottleneck: Why Our Merge Time Tripled

#discuss #ai #programming #productivity

6 min read

jidonglab

Sep 8

The Minute-12 Rule: Coding Interview Time Management

#discuss #interview #career #programming

6 min read

jidonglab

Sep 8

The Code Review Interview: I Hand Candidates a Broken PR

#discuss #interview #career #programming

6 min read

jidonglab

Sep 7

Temperature 0 Isn't Deterministic: Why Your LLM Still Drifts

#discuss #ai #llm #programming

6 min read

jidonglab

Sep 7

Coding Interview Hints Are Scored: The 5-Rung Ladder

#discuss #interview #career #programming

6 min read

jidonglab

Sep 6

Reward Hacking: Why Your AI Agent Fakes a Green Test Suite

#discuss #ai #programming #llm

5 min read

jidonglab

Sep 6

Backchannel Reference Checks: The Interview You Never See

#discuss #career #interview #jobs

6 min read

jidonglab

Sep 5

Your AI Coding Agent Ignores Your Rules File. Here's Which Parts

#ai #programming #productivity #llm

5 min read

jidonglab

Sep 5

Why the FizzBuzz Interview Question Still Filters Senior Devs

#discuss #career #interview #programming

6 min read

jidonglab

Sep 4

Design Twitter: What a System Design Interview Really Scores

#discuss #career #interview #programming

6 min read

jidonglab

Sep 3

AI Commit Messages Killed My git log. Here's the Autopsy

#discuss #ai #programming #productivity

5 min read

jidonglab

Sep 3

'Tell Me About a Bug You Fixed' Beats Any LeetCode Question

#discuss #interview #career #programming

6 min read

jidonglab

Sep 2

JSON Mode Makes Your LLM Dumber: The Constrained Decoding Trap

#discuss #ai #llm #programming

6 min read

jidonglab

Sep 2

What Happens When You Type google.com? How It's Really Scored

#discuss #interview #career #programming

6 min read

jidonglab

Sep 1

Invert a Binary Tree: What the Interview Question Really Tests

#discuss #interview #career #programming

6 min read

jidonglab

Sep 1

Too Many MCP Tools: I Gave My Agent 61 and It Got Dumber

#ai #llm #programming #productivity

6 min read

jidonglab

Aug 31

The Hiring Debrief: Where Your Tech Interview Is Really Decided

#discuss #interview #career #jobs

6 min read

jidonglab

Aug 30

LLM Sycophancy: I Told the AI Its Correct Code Was Wrong

#discuss #ai #llm #programming

7 min read

jidonglab

Aug 30

Brainteaser Interview Questions: Why Manhole Covers Are Round

#discuss #interview #career #programming

6 min read

jidonglab

Aug 29

Interview Horror Stories: 6 Ways I Watched Good Engineers Lose

#discuss #career #interview #programming

6 min read

jidonglab

Aug 29

Context Rot: Why Your AI Agent Gets Dumber the Longer It Runs

#ai #llm #programming #productivity

6 min read

jidonglab

Aug 28

AI Killed the Take-Home Coding Test. Here's What Replaced It

#discuss #career #interview #ai

6 min read

jidonglab

Aug 28

AI-Generated Unit Tests: 100% Coverage, 0 Bugs Caught

#discuss #ai #programming #productivity

6 min read

jidonglab

Aug 27

Developer Salary Negotiation: The Recruiter Already Has a Number

#discuss #career #interview #jobs

6 min read

jidonglab

Aug 27

Why Great Engineers Bomb the Behavioral Interview Round

#discuss #interview #career #jobs

6 min read

A hard rule: no repro, no agent

jidonglab

Aug 26

Vibe Coding Is Fine. Vibe Debugging Is What Kills You

#discuss #ai #programming #productivity

6 min read

jidonglab

Aug 26

Why Strong Engineers Fail Coding Interviews: A Scorecard Autopsy

#discuss #career #interview #programming

6 min read

jidonglab

Aug 25

Why AI Coding Agents Never Delete Code (I Measured It)

#discuss #ai #programming #productivity

6 min read

jidonglab

Aug 25

Any Questions for Us? 7 Questions to Ask the Interviewer

#discuss #career #interview #jobs

6 min read

jidonglab

Aug 24

Using AI in a Live Coding Interview: How Interviewers Know

#discuss #interview #career #ai

6 min read

jidonglab

Aug 23

Gradient Accumulation Loss Bug: Why accum=8 Isn't Batch Size 8

7 min read

jidonglab

Aug 23

Filtered Vector Search: Why HNSW Recall Collapses at 1% Selectivity

7 min read

jidonglab

Aug 22

YaRN vs NTK RoPE Scaling: Why 4x Context Breaks Short Prompts

7 min read

jidonglab

Aug 22

Attention Sinks: Why Sliding-Window KV Eviction Breaks Your LLM

8 min read

jidonglab

Aug 21

Claude Prompt Caching: Why Agent Loops Miss the 20-Block Lookback

#agents #claude #llm #performance

7 min read

jidonglab

Aug 21

Why temperature=0 Isn't Deterministic: LLM Batch Invariance

8 min read

jidonglab

Aug 20

acc vs acc_norm: Why Length Bias Skews LLM Eval Scores

#ai #llm #machinelearning

7 min read

jidonglab

Aug 20

Speculative Decoding: Why Batching Kills Your 3x Speedup

7 min read

jidonglab

Aug 19

DPO Likelihood Displacement: Why Chosen Logprobs Fall Too

7 min read

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