standard
resumable file uploads.
tus is the open protocol standard for resumable and reliable file uploads across the web, facilitating efficient and seamless file transfer experiences.
The Darwin Information Typing Architecture (DITA) specification defines a set of document types for authoring and organizing topic-oriented information, as well as a set of mechanisms for combining, extending, and constraining document types.
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TypeSchema is a JSON specification to describe data models.
TypeSchema is a JSON format to describe data models in a language neutral format. A TypeSchema specification can be easily transformed into code for almost any programming language. This helps to reuse core data models in different environments.
The agents.json Specification is an open specification that formally describes contracts for API and agent interactions, built on top of the OpenAPI standard.
A simple, open format for giving agents new capabilities and expertise. Agent Skills are folders of instructions, scripts, and resources that agents can discover and use to do things more accurately and efficiently.
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Supply-chain Levels for Software Artifacts, or SLSA ("salsa").
SLSA is a specification for describing and incrementally improving supply chain security, established by industry consensus. It is organized into a series of levels that describe increasing security guarantees.
It’s a security framework, a checklist of standards and controls to prevent tampering, improve integrity, and secure packages and infrastructure. It’s how you get from "safe enough" to being as resilient as possible, at any link in the chain.
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A simple, open format for guiding coding agents, used by over 20k open-source projects.
Think of AGENTS.md as a README for agents: a dedicated, predictable place to provide the context and instructions to help AI coding agents work on your project.
Related contents:
- Improve your AI code output with AGENTS.md (+ my best tips) @ builder.io.
- #118 - Les news sur le développement web et l'IA pour septembre 2025 RC1 @ Double Slash :fr:.
- Optimizing repos for AI @ Tom Bedor's Blog.
- How to write a great agents.md: Lessons from over 2,500 repositories @ GitHub Blog.
- Writing a good CLAUDE.md @ humanlayer.
- Streamlining my user-level CLAUDE.md @ chris dzombak.
- The Complete Guide to CLAUDE.md @ builder.io.
- How to build self-improving coding agents - Part 1 @ Eric J Ma's Website.
- AGENTS.md outperforms skills in our agent evals @ Vercel.
- Evaluating AGENTS.md: Are Repository-Level Context Files Helpful for Coding Agents? @ arXiv.
- Knowledge Priming @ martinFowler.com.
- J'ai mis deux IA en code review l'une contre l'autre — voici ce que ça donne @ Maxence Maireaux :fr:.
- Filesystems are having a moment @ madalitso.me.
- Your Docs Directory Is Doomed @ Jim Yagmin's Blog.
- Stop Wasting Hours Writing Unit Tests: Use GitHub Copilot to Explode Code Coverage Fast @ Build5Nines.
Standardizing Feature Flagging for Everyone.
OpenFeature is an open specification that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool or in-house solution.
The Open Standard for AI Agent Configuration.
An open directory convention for AI agent configuration. One place for MCP tools, AGENTS.md instructions, Skills, Sub-Agents, Tasks, Memories, and model config — in plain, version-controllable files.
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate.
JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.
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Serve Markdown to AI Agents with Accept: text/markdown
Your site already has the content. Serving a Markdown variant lets agent AI clients skip nav/scripts/layout markup and read the content directly.
A common and open digital language to develop short supply chains
A standard for respecting user privacy in software.
A single, standard environment variable that clearly and unambiguously expresses a user's wish to opt out.
Open Initiative for Process Specifications.
The open source community is collaborating to establish common specifications for secure software development based on open source best practices.
The C4 model for visualising software architecture: Context, Containers, Components, and Code.
The C4 model was created as a way to help software development teams describe and communicate software architecture, both during up-front design sessions and when retrospectively documenting an existing codebase. It's a way to create maps of your code, at various levels of detail, in the same way you would use something like Google Maps to zoom in and out of an area you are interested in.
The open content licensing standard for the AI-first Internet
Really Simple Licensing (RSL) is an evolution of the early ideas behind the widely adopted RSS standard, which provided a machine-readable framework for publishers to syndicate content to third-party clients and crawlers in exchange for traffic.
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OpenPubkey is an open source project that binds public keys and workload identities using standard SSO and OpenID Connect.
Use OpenPubkey today to SSH to machines on your network without SSH keys.
A lightweight protocol for humans to assert authorship of their website content and vouch for the humanity of others.
human.json is a lightweight protocol for humans to assert authorship of their site content and vouch for the humanity of others. It uses URL ownership as identity, and trust propagates through a crawlable web of vouches between sites.
MessagePack is an extremely efficient object serialization library. It's like JSON, but very fast and small.
It's like JSON. but fast and small. MessagePack is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON. But it's faster and smaller. Small integers are encoded into a single byte, and typical short strings require only one extra byte in addition to the strings themselves.
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An open protocol enabling communication and interoperability between opaque agentic applications.
One of the biggest challenges in enterprise AI adoption is getting agents built on different frameworks and vendors to work together. That’s why we created an open Agent2Agent (A2A) protocol, a collaborative way to help agents across different ecosystems communicate with each other.
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The OpenCLI specification (OCS) defines a standard, platform and language agnostic interface to CLI applications which allows both humans and computers to understand how a CLI tool should be invoked without access to source code or documentation.
An OpenCLI Description can be used by documentation software to display usage of a tool, or code generation tools to create clients for interoping with a CLI tool.
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We are uncovering a new way of building software by embracing AI, iteration, and human intuition.
The GDPR.txt file is a proposed standard which informs hosting providers about the personal data collected by softwares. It aims to simplify the compliance to the General Data Protection Regulation (GDPR) of hosting providers. Note that a GDPR.txt file is not enough to make your project GDPR compliant (but it will help).
Making the Network Visible.
sFlow® is an industry standard technology for monitoring high speed switched networks. It gives complete visibility into the use of networks enabling performance optimization, accounting/billing for usage, and defense against security threats.
Podcasting 2.0 is making podcasting better for audiences, podcasters, and developers.
Podcasting 2.0 is a set of new features and standards that make podcasting better for everyone.
Podcasting 2.0 extends the RSS standard - the core technology that makes podcasting possible - to add new features. None of these features break any existing podcast feeds or podcast players, but, where supported, they enable podcasters to do more things, and enhance the experience for the audience.
International Open Standard (ISO/IEC 5962:2021).
SPDX is an open standard for communicating software bill of material information, including provenance, license, security, and other related information. SPDX reduces redundant work by providing common formats for organizations and communities to share important data, thereby streamlining and improving compliance, security, and dependability. The SPDX specification is recognized as the international open standard for security, license compliance, and other software supply chain artifacts as ISO/IEC 5962:2021.
KDL is a small, pleasing document language with xml-like semantics that looks like you're invoking a bunch of CLI commands! It's meant to be used both as a serialization format and a configuration language, much like JSON, YAML, or XML.
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A specification for developer-centric application definition used in Cloud Native Applications
The Compose Specification is a developer-focused standard for defining cloud and platform agnostic container-based applications.
TAP, the Test Anything Protocol, is a simple text-based interface between testing modules in a test harness. It decouples the reporting of errors from the presentation of the reports.
Comments that are easy to grok and grep.
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The ActivityPub protocol is a decentralized social networking protocol based upon the [[activitystreams-core]] 2.0 data format. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and content.
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A new API for podcast synchronization.
The Open Podcast API is an initiative aiming to provide a feature-complete synchronization API specification for podcast (web) apps and user-focused servers.
reStructuredText (reST) is the default plaintext markup language used by both Docutils and Sphinx. Docutils provides the basic reStructuredText syntax, while Sphinx extends this to support additional functionality.
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This site documents how to develop, deploy, and test a Container Storage Interface (CSI) driver on Kubernetes.
The Container Storage Interface (CSI) is a standard for exposing arbitrary block and file storage systems to containerized workloads on Container Orchestration Systems (COs) like Kubernetes. Using CSI third-party storage providers can write and deploy plugins exposing new storage systems in Kubernetes without ever having to touch the core Kubernetes code.
A portable package format for reusable components that extend AI agents.
Agent Plugins is an open, vendor-neutral standard for packaging reusable components into portable plugins. Its version 1.0.0 specification defines a shared format for Agent Skills and MCP servers that compatible clients can discover and load consistently.
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Become a leader in email innovation. JMAP is the developer-friendly, open API standard for modern mail clients and applications to manage email faster.
It’s official! JMAP has been published by the Internet Engineering Task Force (IETF).
A JavaScript browser API that allows the creation of a payment stream from the user agent to the website.
Media over QUIC is a live media protocol powered by QUIC: a super-charged TCP/UDP replacement that powers HTTP/3. It’s being developed by the IETF and your favorite big tech companies such as Cloudflare, Google, Meta, Cisco, Akamai, etc.
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Open Description Standard for AI Models.
An open description standard for defining cross-platform, multi-format AI models.
While JSON is probably the most popular format for exchanging data, JSON Schema is the vocabulary that enables JSON data consistency, validity, and interoperability at scale.
a simple protocol for decentralizing social media that has a chance of working. a truly censorship-resistant alternative to Twitter that has a chance of working.
A better internet is possible: decentralize Twitter, eBay, IoT and other stuff.
Smart-client/dumb-server architecture that can create the free and open internet we were promised.
Publish presentation-rich content from a concise and comprehensive authoring format.
AsciiDoc is a plain text markup language for writing technical content. It’s packed with semantic elements and equipped with features to modularize and reuse content. AsciiDoc content can be composed using a text editor, managed in a version control system, and published to multiple output formats.
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Reproducible builds are a set of software development practices that create an independently-verifiable path from source to binary code.
an open blockchain network for insurers.
openIDL (open Insurance Data Link) is an open blockchain network that streamlines regulatory reporting and provides new insights for insurers, while enhancing timeliness, accuracy, and value for regulators. openIDL is the first open blockchain platform that enables the efficient, secure, and permissioned-based collection and sharing of statistical data.
Evolving the Prometheus exposition format into a standard.
OpenMetrics a specification built upon and carefully extending Prometheus exposition format in almost 100% backwards-compatible ways.
Tree Root Object Notation.
A JSON-Compatible Zero-Copy Serialization Format.
JSON for Humans.
JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand (e.g. for config files). It is not intended to be used for machine-to-machine communication. (Keep using JSON or other file formats for that. 🙂)
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I think all technical writers, at some point or another, feel the urge to base their work on something more systematic than “it’s just the way folks documented stuff since forever”. Toolkits and frameworks provide content types, which is immensely valuable when you know what you want to write, but starting from there is like buying a hammer without knowing that half of the work you’ll do is turning screws. As I find the lack of deeper conversation around this topic rather unsettling, I decided to contribute some verses.
A 💌 to the humans maintaining computer configurations.
KSON combines the best aspects of JSON and YAML—robust and efficient like JSON, clean and readable like YAML. KSON is designed to be toolable and has a flexible syntax that is usually auto-formatted to look like this:
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OKF is a universal, vendor-neutral format for representing knowledge as plain markdown files with YAML frontmatter. It is not tied to any particular agent, framework, model provider, or serving system.
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SimpleFIN (also SFIN) stands for Simple Financial Interchange and makes read-only financial interchange simple. It’s like RSS for financial information.
SimpleFIN is like a window on a safe: it lets people look at, but not touch your financial information. And you control who can look through the window!
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Executable GenAI Prompt Templates.
Dotprompt is an executable prompt template file format for Generative AI. It is designed to be agnostic to programming language and model provider to allow for maximum flexibility in usage. Dotprompt extends the popular Handlebars templating language with GenAI-specific features.
JSON for Linking Data. Data is messy and disconnected. JSON-LD organizes and connects it, creating a better Web.
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Scrum is a framework for developing and sustaining complex products. This Guide contains the definition of Scrum. This definition consists of Scrum’s roles, events, artifacts, and the rules that bind them together. Ken Schwaber and Jeff Sutherland developed Scrum; the Scrum Guide is written and provided by them. Together, they stand behind the Scrum Guide.
In an ideal world, I would wish SemVer to have 4 numbers: EPOCH.MAJOR.MINOR.PATCH. The EPOCH version is for those big announcements, while MAJOR is for technical incompatible API changes that might not be significant. This way, we can have a more granular way to communicate changes. Similarly, we also have Romantic Versioning that propose HUMAN.MAJOR.MINOR.
Solid is an evolution of the web by its creator Sir Tim Berners-Lee. Solid realizes Tim's original vision for the Web as a medium for the secure, decentralized exchange of public and private data.
The Foundation for Connected Things. Smart Home Device Solution.
One protocol to connect compatible devices and systems with one another. Smart home devices should be secure, reliable, and seamless to use. And with Matter, they are.
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the open standard for sealing anything.
The open standard for proving any file is real, unaltered, sealed by a known certificate, and in existence by a certain date. One standard for every kind of file: documents, images, email, code, containers. Verifiable by anyone, forever. The proof travels with the file and stands on its own.
A lightweight spec‑driven framework.
OpenSpec aligns humans and AI coding assistants with spec-driven development so you agree on what to build before any code is written. No API keys required.
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