DEV Community

DEV Challenges

This is the official tag for submissions and announcements related to DEV Challenges.

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
My Hermes agent loop blew the context window at turn 47. llm-context-trim fixed it.

Hermes Agent Challenge Submission: Build With Hermes Agent

My Hermes agent loop blew the context window at turn 47. llm-context-trim fixed it.

4
Comments
3 min read
My Hermes agent kept returning JSON in a markdown code block. I kept writing the same regex. Then I stopped.

Hermes Agent Challenge Submission: Build With Hermes Agent

My Hermes agent kept returning JSON in a markdown code block. I kept writing the same regex. Then I stopped.

4
Comments
2 min read
Building an Accessibility Agent with Hermes Agent: Sound to Music for People Who Couldn't Before

Hermes Agent Challenge Submission: Build With Hermes Agent

Building an Accessibility Agent with Hermes Agent: Sound to Music for People Who Couldn't Before

4
Comments
7 min read
How I Finally Shipped PharmVerify NG — an AI Drug Checker for Nigerian Patients published: true tags: devchallenge, githubchallenge

GitHub “Finish-Up-A-Thon” Challenge Submission

How I Finally Shipped PharmVerify NG — an AI Drug Checker for Nigerian Patients published: true tags: devchallenge, githubchallenge

3
Comments
4 min read
Policy Storyteller: Turning Nepali Bills into Human Stories with Gemma 4

Gemma 4 Challenge: Build With Gemma 4 Submission

Policy Storyteller: Turning Nepali Bills into Human Stories with Gemma 4

1
Comments
2 min read
Google Cloud NEXT’s Quiet AI Agent Breakthrough

Google Cloud NEXT '26 Challenge Submission

Google Cloud NEXT’s Quiet AI Agent Breakthrough

1
Comments 1
6 min read
My agent kept hitting context limits. This one function fixed it.

Hermes Agent Challenge Submission: Write About Hermes Agent

My agent kept hitting context limits. This one function fixed it.

4
Comments
2 min read
Building an Autonomous MCP Lead Generation System with Hermes Agent

Hermes Agent Challenge Submission: Build With Hermes Agent

Building an Autonomous MCP Lead Generation System with Hermes Agent

3
Comments 2
5 min read
Validating Gemma 4 for Industrial IoT: A Governance Pattern

Gemma 4 Challenge: Build With Gemma 4 Submission

Validating Gemma 4 for Industrial IoT: A Governance Pattern

3
Comments
3 min read
My Hermes agent's stop condition was a 40-line if/elif chain. I replaced it with 3 lines.

Hermes Agent Challenge Submission: Write About Hermes Agent

My Hermes agent's stop condition was a 40-line if/elif chain. I replaced it with 3 lines.

4
Comments
2 min read
🎙️Interview Coach AI — Practice Mock Interviews Locally with Gemma 4 + Jan

Gemma 4 Challenge: Build With Gemma 4 Submission

🎙️Interview Coach AI — Practice Mock Interviews Locally with Gemma 4 + Jan

16
Comments
5 min read
Fast-Track CBT: A Clean, Zero-Stress Online Testing Platform

GitHub “Finish-Up-A-Thon” Challenge Submission

Fast-Track CBT: A Clean, Zero-Stress Online Testing Platform

4
Comments
4 min read
The Sleeper Announcement from Google I/O 2026 That Will Change How We Think About Apps

Google I/O Writing Challenge Submission

The Sleeper Announcement from Google I/O 2026 That Will Change How We Think About Apps

21
Comments 5
7 min read
I replaced 200 lines of ad-hoc state management in my Hermes agent with one object.

Hermes Agent Challenge Submission: Build With Hermes Agent

I replaced 200 lines of ad-hoc state management in my Hermes agent with one object.

3
Comments
2 min read
I changed one line in my Hermes system prompt. prompt-diff showed me exactly what.

Hermes Agent Challenge Submission: Write About Hermes Agent

I changed one line in my Hermes system prompt. prompt-diff showed me exactly what.

2
Comments
3 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.