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Agents / Coding agents 146 items

All Coding agents items under Agents on AIFIRST News, newest first. 146 items.

My agent.md to improve LLM-assisted code quality

A developer published their agent.md file, a project-level instruction document that configures AI coding assistants for higher-quality output. The file specifies code style, forbidden patterns, testing requirements, and context rules that the model must follow. The post on Hacker News generated significant discussion on system-level prompt engineering for agentic coding workflows.

/24 Aug 2026/HN

Atlas: Evidence-driven reusable AI software engineering framework

Atlas is an open-source software engineering framework that structures AI agent workflows around evidence-based decision making, designed for use with Codex, Claude Code, and other coding agents. It provides reusable patterns for verifying claims before acting on them. The project targets developers who want more reliable and auditable AI-assisted development pipelines.

/24 Aug 2026/GitHub

notch: A small, native, extensible coding agent inspired by Pi

notch is a small, native, extensible coding agent inspired by the Pi assistant, prioritizing a minimal codebase and local execution over cloud dependencies. It is designed to be embedded in development environments and extended with custom tools. The project targets developers who want a coding agent they can fully understand and modify.

/24 Aug 2026/GitHub

Claude Code guesses my timezone based on my name

A user noticed that Claude Code inferred their timezone as IST (Indian Standard Time) based on their name rather than from system timezone data. When asked, the model acknowledged the guess. The interaction surfaced a behavioral pattern where Claude makes demographic inferences from names when direct data is not available.

/24 Aug 2026/reddit

Claude Code played me at chess with narration, jokes, and trash talk

A developer built a chess app in which Claude Code plays against them in a browser window while running in the terminal. The model plays real games, reasons aloud in the chat, opens by the book, and comments on moves with personality. The project demonstrates using Claude Code as an interactive game opponent alongside its role as a coding assistant.

/24 Aug 2026/reddit

Anthropic A/B testing reduced effort levels in Claude Code

Users reported that Claude Code appeared to be quietly reducing reasoning effort, raising concerns about undisclosed model behavior changes. Anthropic engineer Thariq confirmed via X that the company is running A/B test configurations in Claude Code that remap numerical effort values, and that the changes are test parameters rather than permanent degradations.

/23 Aug 2026/reddit

What a plain language standard does to a coding agent

A developer published a plain language plugin for Claude Code and Codex CLI that enforces structured, readable output from agentic sessions. The plugin ships as a set of skills and custom output rules, targeting the common problem of verbose or cryptic agent responses that are difficult to act on.

/23 Aug 2026/reddit

deterministic-core-llm-surface-pattern: Claude Skill that keeps 95 percent of an agent in deterministic code

A Claude Skill that states the 95/5 pattern: keep roughly 95 percent of an agentic system in deterministic, versioned code and confine model calls to the 5 percent that needs genuine language judgment. Its heuristic is whether running the same input twice must produce identical output. Logic that must be identical belongs in code, not a prompt. The repository has 7 commits and documents anti-patterns and testing implications alongside the rule.

/22 Aug 2026/GitHub

Quick impressions: a week of using Codex more than Claude

Lucian Ghinda spent a week working mostly in Codex instead of Claude on Ruby and Rails code and reports the differences. Codex wrote fewer comments and simpler architecture, while Claude produced more abstractions, Sorbet signatures, and type aliases. Codex made changes faster up front but needed enough review afterwards that the author saw no net time saving, and he notes Codex stops at the first sign it might be done where Claude tries to exceed the request. He also reports Codex creating a branch targeting another branch targeting main, then rebasing wrongly into a pull request with over 4,000 additions, and struggling with Jira and Atlassian CLI workflows.

/21 Aug 2026/HN

Bringing the cybersecurity capabilities of Claude Mythos 5 to more defenders

Anthropic announced on 21 August 2026 that Claude Mythos 5 is available through Claude Security for Enterprise customers and is coming to cybersecurity partners' tools. Enterprise users can run the model in Claude Security to scan codebases for vulnerabilities and suggest patches. The post announces the Defender Advantage Fund with $35 million in credits for open-source security work covering vulnerability patching, automated scanning and patching, and experimental approaches, with initial recipients to be named later. The Cyber Verification Program expands to broader dual-use capabilities on Opus and Sonnet, with Mythos-class access to follow for verified organizations, and access is routed through purpose-built interfaces that return patches or alerts rather than direct model access.

/21 Aug 2026/HN

nobuzz: a /debuzz slash command that rewrites Claude output as plain speech

nobuzz adds a /debuzz slash command to Claude Code that routes a verbose response through Google's Gemini via the Antigravity CLI with the single job of rephrasing it as plain human speech. It offers three output modes, colleague, manager, and director, each more condensed than the last, and colleague mode preserves code blocks and file paths. The repository has 139 stars and an MIT license.

/21 Aug 2026/HN

rolemux: Role-based orchestration layer for multi-agent AI coding pipelines

RoleMux is a TypeScript npm package that lets developers define a Planner, Worker, and Reviewer agent pipeline once in a YAML manifest and run it with different AI backends (OpenAI Codex, Claude, Gemini, Hermes). It supports automatic review-and-fix loops with configurable iteration limits and runs fully local without cloud dependencies. MIT-licensed with a published npm package and GitHub Actions CI.

/21 Aug 2026/GitHub

Hacking with Claude on a $27 Smart Watch

The author used Claude via OpenCode to build a custom Casio-style watch face for a PineTime smartwatch in a few hours of iterative AI-assisted firmware work. Static display elements were baked into a fullscreen background image, leaving only dynamic components to render at runtime, which reduced rendering complexity on the constrained device. Transfer of the 240x240 image over Bluetooth took roughly 10 minutes and caused 1 to 2 second refresh delays, but the prototype was considered functional and the code was published to GitHub.

/20 Aug 2026/HN

Using Claude to scrape Reddit posts

Claude is blocked from direct Reddit scraping (legal dispute + anti-bot). Community found 3 clean workarounds: (1) Reddit's public JSON API - free, no auth for public subs, returns 100 posts as structured JSON; (2) ol...

/7 Jun 2026/r/ClaudeCowork

Claude Box

Built a physical device that shows Claude Code token/usage stats in real time on a GeekMagic Small TV Ultra - a tiny $8 esp8266 + ST7789 screen. Ported and rebuilt from an existing M5StickC Plus project by u/Mechanica...

/4 Jun 2026/r/ClaudeCode

Anthropic launches financial services

Reference repo with 10 financial workflow agents (investment banking, PE, asset management, ops). Same agent definitions run via Claude Cowork plugin OR Managed Agents API - harness-neutral architecture. Key agents fo...

/11 May 2026/r/ClaudeCode

I made Claude Code aware of its own usage limits

Anthropic returns `anthropic-ratelimit-unified-5h-utilization` and `anthropic-ratelimit-unified-7d-utilization` headers on every inference response - Claude Code uses them to render UI bars but never exposes them to t...

/10 May 2026/r/ClaudeAI

Boris Cherny: agentic loops are the future

The Claude Code creator argues AI running autonomously in loops, not one-shot prompting, is where the field is heading. The thread is largely skeptical but surfaces practical experience with long-running loop.

/6 May 2026/r/ClaudeAI

How to give Claude Code Superpowers

Superpowers is a Claude Code plugin that enforces a structured development methodology: brainstorm → spec → plan → subagent execution → TDD → two-stage code review → systematic debugging. The core discipline: no code ...

/20 Apr 2026/r/BuildToShip

Claude Design is Incredible...

User shared a before/after redesign using Claude Design - fast, low-effort transformation they liked for personal use. But top comments converge on one theme: Claude Design outputs a recognizable house style (same fon...

/20 Apr 2026/r/ClaudeAI

10 Hours of Claude Design - My Thoughts

Developer with ~1yr Claude Code experience spent 10hrs with Claude Design (Anthropic's new AI design tool). Used 80% of weekly 5x plan. Key finding: Opus 4.7 for the initial/first prompt is critical (sets the foundati...

/18 Apr 2026/r/ClaudeAI

Opus 4.7 - my takes after 1 day of use

Community verdict after day 1: ~20% better output for ~40% more token usage. Key upgrade: longer uninterrupted execution, better phase-following, better architecture-level reasoning. Key regression: "GPT vibe" - pushe...

/17 Apr 2026/r/ClaudeCode

Don't use Claude Code's Default System Prompt

45-year veteran dev says the default CC system prompt tries to serve everyone and fails all sides. Recommends: read the extracted prompts at Piebald-AI/claude-code-system-prompts, take the best parts, build a custom o...

/16 Apr 2026/r/ClaudeCode

Piebald-AI/claude-code-system-prompts - GitHub

All of Claude Code's system prompts extracted from source - updated within minutes of each new release. Covers 152 version changelog. Includes sub-agent prompts (Explore, Plan), slash command prompts (/batch, /review-...

/16 Apr 2026/r/unknown

AgentSeal/codeburn - GitHub

CLI/TUI dashboard that reads Claude Code session files from ~/.claude/projects/ directly - no wrapper, no proxy, no API keys. Shows token spend by task type, tool, model, MCP server, and project. Tracks one-shot succe...

/16 Apr 2026/r/unknown