blocking-and-nonblocking-io SKILL.md skillA
blocking-and-nonblocking-io from robsonkades/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add robsonkades/agent-skills/blocking-and-nonblocking-io@git:20261016.c769bd8Pins git:20261016.c769bd8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- robsonkades/agent-skills
- Path
skills/blocking-and-nonblocking-io/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.c769bd8, committed Oct 16, 2026
- First version recorded
- Sep 6, 2026
- Size
- 11,525 bytes
- Repository stars
- 3
- License
- Apache-2.0
Four things routinely conflated into one: a blocking API, a blocked OS thread, non-blocking I/O at the syscall, and an asynchronous programming model. Covers which JDK operations unmount a virtual thread and which capture the carrier, the difference between capture-with-compensation and pinning, the socket poller behind blocking socket calls, file I/O as the case Loom does not fix, and what blocking an event loop costs. Use when someone says virtual threads make I/O non-blocking, when a…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Blocking and Non-Blocking I/O ## Purpose Keep four distinct properties distinct when diagnosing or reviewing an I/O path: ```text Blocking API the caller may wait for this call's specified result Blocked OS thread a kernel-schedulable entity is parked and unavailable Non-blocking I/O no wait for readiness; partial progress or would-block is possible Asynchronous model completion is represented separately, e.g. a stage or callback ``` A virtual thread reading a supported socket path without an enclosing pinning frame uses a **blocking API**, does **not** dedicate a blocked carrier to that request, sits on top of **non-blocking I/O** plus a shared poller in the current JDK implementation, and is written in a **synchronous** model. All four at once. Any sentence that treats them as the same axis is wrong somewhere. Define what completion means before releasing resources: a read may return fewer bytes than requested, and a streaming response may return before its body is consumed. Readiness, API return, transfer completion and a remote business effect are different milestones; none alone …
Read the whole file at its exact version.
How to install
mdr add robsonkades/agent-skills/blocking-and-nonblocking-io@sha256:0855b59117f96331The line at the top of this page pins the label git:20261016.c769bd8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_p5zlnkudwewpmodt)
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Versions
The registry has recorded 5 versions of this file, between Sep 6, 2026 and Oct 16, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.c769bd8 latest | 2026-10-16 | c769bd8 | 11,525 B | A | view · diff |
| git:20260927.9ecadfd | 2026-09-27 | 9ecadfd | 10,617 B | A | view · diff |
| git:20260923.832673e | 2026-09-23 | 832673e | 9,473 B | A | view · diff |
| git:20260911.37b054b | 2026-09-11 | 37b054b | 9,057 B | A | view · diff |
| git:20260906.e6ad4bd | 2026-09-06 | e6ad4bd | 8,462 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11525 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
robsonkades/agent-skills · 3 stars · license Apache-2.0 · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_p5zlnkudwewpmodt GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/blocking-and-nonblocking-io GET https://markdownregistry.com/api/v1/blob/0855b59117f9633136860d0de82b0a9e13a5b1c5d5ca5a904d39f26f7ede703e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.