developer tools

A Codex Skill that installs verified public-safe skin packs from GitHub releases, validates theme files, stages them locally, and shows rollback guidance before applying anything.

A Claude Code skill that launches a second model in a herdr split pane to adversarially review a diff, then checks each finding before returning a verdict.

A terminal and Claude Code plugin that shows rotating one-line regional news in the status line while you work.

A Claude Code skill that searches royalty-free stock photos through the Pexels API, with install and usage instructions in the repo.

Nano Collective is an open-source collection of local-first AI tools for developers, with featured projects like Nanocoder and Nanotune plus packages such as get-md, prompt-scrub, and json-up.

Pokayoke is a repo policy tool that turns code conventions into checks humans and agents can run and repair. It positions itself alongside linting and formatting, with fast setup, local TypeScript rules, and an agent-first workflow via SKILL.md.

A catalog of design patterns for building agentic systems that verify outputs with evidence instead of relying on self-review. The page explains two main failure modes and presents structured patterns for context, verification, and orchestration.

A skill for coding agents that routes slash commands and trigger phrases to zerostack, a lightweight CLI coding agent for coding, planning, reviewing, and orchestration tasks.

A Topos case study showing how a guided refactor of a synthetic healthcare claims engine reduced token usage, wall time, and estimated cost for later Gemini feature sessions.

Whitman is a Rust CLI for selecting an AGENTS.md profile and linking it into the current project. It supports interactive profile browsing, profile creation, and safe symlink handling across local projects and Git repositories.

Open-source AI agent harness tool that lets an agent wipe its session context and replay the first message, designed for loop-based agent workflows.

A Visual Studio 2026 extension that connects Claude Code to the IDE, showing native diffs with accept/reject, selection context, compiler diagnostics, and a live session panel.

Python library that automates ChatGPT and Gemini through the web UI, using a real Chrome browser to send prompts, upload files, and return responses as Python objects.

Visr is a CLI tool that records full agent terminal trajectories, including commands, output, retries, and fixes, then returns a transcript link for reuse across sessions.

A GitHub repository that proposes a practical methodology for evaluating how AI systems behave during real work, with quick-start, practitioner, and methodology guides included.

TokenScale is a browser-based AI API pricing explorer that compares 16 providers, converts token costs into familiar real-world examples, and shows how batch, cache, and conversation length affect spend.

An open-source ID library that generates human-readable, token-efficient IDs for AI agents and LLM workflows, with parsing, validation, deterministic IDs, and alias mapping utilities.

GitHub Blog article on reducing token usage and API cost in agentic coding workflows, including logging token usage, removing unused MCP tools, replacing GitHub MCP with GitHub CLI, and measuring efficiency gains.

Tokenyst is a local-first CLI for tracking Claude Code token usage and API costs against task budgets. It captures session spend, shows progress in the terminal, and stores data on your machine.

An open-source browser experiment that uses a visual LLM to read HTML and hallucinate the rendered page instead of using a traditional rendering engine.

Pu.sh is a lightweight coding-agent harness delivered as a shell script. The page shows a direct install-and-run flow, a no-dependency setup, and links to GitHub, docs, and an MIT license.

A cross-platform CLI release for switching between isolated Claude Code accounts on Linux and macOS without re-login, with per-profile storage and Keychain-backed credentials on macOS.

Browser-based infrastructure for running coding agents persistently, with workspace management, status tracking, and support for tools like Claude Code and Codex.

A French public demo of an autonomous Claude agent competing in timed money-making challenges, with live episode tracking, Stripe payments, and public results from prior runs.