Abdullah Jan

Building an open source AI-powered careers development platform -

[Abdullah Jan @Mr_AbdullahJan]

Carific AI S1E0: The trailer

I'm building an AI-powered career development platform.

Open source. MIT licensed. Every line of code public.

Here's what I'm working on 🧵

[Abdullah Jan @Mr_AbdullahJan]

@TechWith_Nova V2

[Alex Hormozi @AlexHormozi]

Don’t stop trying because it didn’t work.

It never works the first time.

[Abdullah Jan @Mr_AbdullahJan]

Lesson: If your streaming API writes "processing started" events, you can end up with empty assistant messages on disconnect.

Don't just check message role. Check for meaningful content.

Building AI agents? What edge cases have bitten you?

[Abdullah Jan @Mr_AbdullahJan]

Carific AI S2E7: The one where the AI agent wouldn't stop talking

Built an AI resume tailor. User clicks "Start" and... nothing.

Chat shows their message. No response. UI frozen.

Here's the bug that took hours to find 🧵

https://t.co/RlqlrZ8dAo

#buildinpublic

[Abdullah Jan @Mr_AbdullahJan]

Fixed by checking for MEANINGFUL content:

const hasMeaningfulContent = https://t.co/yCoGFSZ2VM.some(
(p) => p.type === "text" ||
p.type === "reasoning" ||
p.type.startsWith("tool-")
);

if (!hasMeaningfulContent) {
// Show retry card
}

[Abdullah Jan @Mr_AbdullahJan]

@m4ciejb Almost 2 weeks part-time

[Abdullah Jan @Mr_AbdullahJan]

"https://t.co/KTc9ALCpoZ: Building an AI Resume Tailor with Multi-Step Agents - Vercel AI SDK 6 and ToolLoopAgent" by Abdullah Jan #DEVCommunity #BuildInPublic #Careers https://t.co/HzoMYnKxgz

[Abdullah Jan @Mr_AbdullahJan]

Two lessons:

1. Never use index as key for reorderable lists. Generate UUIDs on creation.

2. Collecting sensitive PII? Add explicit consent flows with warnings.

The "last 10%" of production hardening is where the real work happens.

What bugs has code review caught for you?

[Abdullah Jan @Mr_AbdullahJan]

Carific AI S2E6: The one where React keys broke everything

Added "move up/down" buttons to reorder resume sections.

Worked perfectly. Until users started typing.

Then focus disappeared mid-keystroke.

Here's the bug that code review caught 🧵

https://t.co/RlqlrZ8dAo

[Abdullah Jan @Mr_AbdullahJan]

Code review also caught this: collecting date of birth, gender, nationality without consent = GDPR violation.

Added:
- Privacy warning UI
- Consent checkbox
- Database flag to track consent
- Conditional PDF rendering

Legal compliance isn't optional.

[Abdullah Jan @Mr_AbdullahJan]

"https://t.co/KTc9ALCpoZ: The Last 10% - Production Hardening with React 19, Privacy Safeguards, and Memory Leak Fixes" by Abdullah Jan #DEVCommunity #BuildInPublic https://t.co/XtlhRfGxTO

[Abdullah Jan @Mr_AbdullahJan]

My cursor 2025 year review:

1.4 B token used 😎👌🔥

[GitHub Projects Community @GithubProjects]

Mondays be like: