oji - building AI in public

Oct 23

AIの議事録で「検討」が「決定」に変わったら、原文のこの2点を照合する

#programming #api #python

1 min read

oji - building AI in public

Oct 20

Why a valid SCORM manifest is not enough

#testing #devops #python #opensource

1

2 min read

oji - building AI in public

Oct 17

I Built a 3-Minute Mystery Game for a Social Event: The Grandpa's Free Trial

#api #ai #testing

3 min read

oji - building AI in public

Oct 16

I Asked AI “What’s a Profitable Niche?” and It Built a Playable Demo Video for Me Overnight.

#ai #python #webdev

1

3 min read

oji - building AI in public

Oct 14

I Used AI to "Verify" My Credit Card Statement – And Discovered My Own Calculations Were Wildly Optimistic

#ai #automation #python

3 min read

oji - building AI in public

Oct 10

Too Many AI Conversations? Here’s How I Get GPT to Draft My "Handover Notes"

#ai #programming #machinelearning

1

3 min read

oji - building AI in public

Oct 9

My Product Isn't Selling: I Had AI Analyze My Sales, And It Proposed 3 Solutions (Including Fees!)

#ai #machinelearning #automation

4 min read

oji - building AI in public

Oct 8

AI-Generated Multiple-Choice Quizzes: I Found a Bias in Answer Placement (and How to Check Before You Ship)

#ai #machinelearning #automation

4

4 min read

oji - building AI in public

Oct 6

My AI told me "You're winning!" when I complained about not losing weight – Why you should measure your waist, not just your wei

#ai #python #webdev

4 min read

oji - building AI in public

Oct 4

300問の問題集をAIで自動生成！ 250問目でAPIエラー、75分が水の泡に。チェックポイント機構で“途中再開”を実装した話

#ai #python #webdev

1 min read

oji - building AI in public

Oct 3

My Python patch failed silently: the `\n` in a triple-quoted string became a literal newline!

#debugging #python #ai

4 min read

oji - building AI in public

Oct 2

My AI Agent Kept Missing Deadlines and Double-Posting — Here's How I Fixed It with JSON Interfaces and Idempotency Checks

#ai #devops #debugging #database

1

4 min read

oji - building AI in public

Sep 29

My Monitoring Bot Went "Silent": 3 Task Scheduler Pitfalls and How Negative Testing with API Snapshots Saved Me

#api #ai #devops #debugging

4 min read

oji - building AI in public

Sep 23

My PC Screamed! How a `grep -r` Trap Led to 100% CPU and How I Prevented It with a JavaScript Git Hook

#api #programming #python #automation

1

4 min read

oji - building AI in public

Sep 22

When AI hallucinated 'systemd' and 'cron' on my Windows machine: The 'context blindness' trap of LLMs

#ai #devops #python

4 min read

oji - building AI in public

Sep 21

My Bot Went Silent: The Case of the Missing "Always-On" Process

#devops #debugging #programming #python

1

4 min read

oji - building AI in public

Sep 20

My PC was Slow as Molasses: The Culprit? Orphaned `grep` Processes After a Shell Timeout.

#api #ai #debugging #programming

4 min read

oji - building AI in public

Sep 19

Oops! Almost Leaked User Data with My AI Feature – A Wake-Up Call from API Terms of Service

#api #ai #devops #python

4 min read

oji - building AI in public

Sep 18

"API Limit 21KB!" ...Then 32KB of data caused a mysterious error. The culprit? Confusing bytes with characters.

#api #ai #devops #python

1

4 min read

oji - building AI in public

Sep 10

My custom filter showed "zero false positives"! Then I realized my validation logic was flawed, letting all the garbage through.

#ai #debugging #machinelearning #automation

4 min read

oji - building AI in public

Sep 8

米国企業の分析bot、外国企業だけ“黙って”分析をスキップしてた話 — 10-Kと20-Fで「リスクの章立て」が違う罠

#ai #python #webdev

1 min read

oji - building AI in public

Sep 4

My Bot's KPI: Trades 2 > Opportunities 1?! When Your Numerator and Denominator Don't Observe the Same Time.

#testing #api #debugging #python

4 min read

oji - building AI in public

Sep 3

One Windows Task Scheduler Setting Made the Difference Between Bot Apocalypse and Resiliency

#api #ai #devops #debugging

4 min read

oji - building AI in public

Sep 2

My AI Agent Was Serving Stale Data for 30 Days: A Silent Failure Rooted in State File Freshness

#ai #debugging #python #automation

4 min read

oji - building AI in public

Aug 29

副業応募botが受注ゼロ！犯人は『毎週クラッシュして成果を捨てる』1行のバグだった話

#debugging #python #automation

1 min read

oji - building AI in public

Aug 28

My monitoring tool lied to me and secretly deleted all past data integrity issues

#ai #devops #debugging #database

5 min read

oji - building AI in public

Aug 26

My Trading Bot Silently Ignored Signals for 41 Days: The "Opportunity vs. Execution" Logging That Saved Me

#devops #debugging #python #automation

3 min read

oji - building AI in public

Aug 25

My AI Agent Recommended a Non-Existent Investment Product — Exposing Information Gaps Between Fund Distributors and Asset Manage

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 25

When I Asked AI to Analyze "FANG+" and It Started Investigating Oil Companies — The Ticker Symbol Trap

#ai #python #automation #buildinpublic

3 min read

oji - building AI in public

Aug 24

Predicting Shareholder Meeting Failure: How AI Quantified Risk from a Single Sentence in Past Minutes and a 5x Increase in Share

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 22

My AI Lied to Me About a Stock Crash — Adversarial Testing Revealed Its Limits (and How to Use AI Correctly)

#ai #python #automation #buildinpublic

3 min read

oji - building AI in public

Aug 21

My Investment Bot's Sell Rule Was Broken: How I Added SEC EDGAR Filings to Catch 'Pre-Bankruptcy' Signals Sooner

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 19

My AI Agent Saved Me from a 287% Revenue Growth Trap

#ai #python #automation #buildinpublic

3 min read

oji - building AI in public

Aug 18

"40% Annual Market Growth!" ...So Why Is the Entire Industry Losing Money? Data-Driven Dive Into the 'Quantity Grows, Profit Die

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 17

My Trading Bot "Perma-Held" a Delisted Stock: The Silent Bug of Disappearing Historical Data

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 14

AI Task Done, Output File Corrupted?! How Preserving 'Transcripts' Saved My Data

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 12

Hunting for the Next 10x Stock: Why Most Deep Tech "Moonshots" Are Just Running on Fumes (and How I Screen for Survival)

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 9

My Investment Screener's 'Exclusion List' Was Full of Zombies (Literally)

#ai #python #automation #buildinpublic

3 min read

oji - building AI in public

Aug 8

My Build Was Stuck: A 700-Second API Fetch Timeout in a 600-Second Environment. Here's How I Fixed It with a Self-Healing Cache.

#ai #python #automation #buildinpublic

1

4 min read

oji - building AI in public

Aug 8

The Trap of Stale Docs: How I Almost Rewrote a "Rejected" Trading Strategy I Found in an Old Book

#ai #python #automation #buildinpublic

1

4 min read

oji - building AI in public

Aug 7

Don't Delete, Archive: How I Safely "Retired" Zombie Code with `git mv` and `_archive/`

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 7

My Stock Buyback Bot Was Crushing It... Thanks to 220 Phantom Signals from Stock Consolidations

#ai #python #automation #buildinpublic

3 min read

oji - building AI in public

Aug 6

My bot kept dying every morning with a mysterious network error. Here’s how Task Scheduler’s 'automatic retry' setting brought i

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 6

No Backtesting Needed! I Punched My Hypothesis's "Heart" Directly with Raw Data and It Died Before I Even Measured Returns

#ai #python #automation #buildinpublic

1

4 min read

oji - building AI in public

Aug 5

My X (Twitter) Weekly Report Bot Showed '0 Followers' for Two Months—The Culprit Was a Non-Existent Account Name in My .env File

#ai #python #automation #buildinpublic

1

4 min read

oji - building AI in public

Aug 5

When to Sell Winning Stocks? I Backtested My "Half-Profit Take" Rule Against 15 Exit Strategies – My Current Rule Dominated!

#ai #python #automation #buildinpublic

4 min read

oji - building AI in public

Aug 5

My Algorithmic Trading Bot Silently Failed to Notify: The Curious Case of Missing `.env` Loads Across Scripts

#ai #python #automation #buildinpublic

1

4 min read

oji - building AI in public

Aug 5

My Trading Bot's Silent Killer: How Forgetting to Load `.env` Across Scripts Silenced Discord Notifications

#ai #python #automation #buildinpublic

4 min read

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