cpp-coroutines SKILL.md skillA
cpp-coroutines from outlinedriven/outline-driven-development is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add outlinedriven/outline-driven-development/cpp-coroutines@git:20260905.fd53e99Pins git:20260905.fd53e99 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- outlinedriven/outline-driven-development
- Path
.devin/skills/cpp-coroutines/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260905.fd53e99, committed Sep 5, 2026
- Size
- 9,198 bytes
- Repository stars
- 55
- License
- Apache-2.0
Use when working with C++20 co_await, co_yield, and co_return, implementing promise_type, sizing coroutine frames, or debugging suspended coroutines in GDB. Not for Rust async: use idiomatic-rust.
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
# C++20 coroutines A coroutine is a function whose execution suspends and resumes while its frame survives on the heap. The language provides the keywords; the library author provides `promise_type`, which decides what suspension and return mean. ## Contract | Field | Bound contract | |---|---| | Trigger | The task writes or reviews `co_await`, `co_yield`, or `co_return` code, implements a `promise_type`, explains the coroutine frame, or debugs a suspended coroutine. | | Authority | Read-only. The skill explains mechanics and drafts coroutine types; edits land through the normal coding path. No remote mutation. | | Side effect | None. | | Done | The drafted coroutine type compiles against the project standard, or the coroutine under debug is located and its promise state read. | ## Inputs - The coroutine code or the behavior wanted: required. - The toolchain and standard level: required. C++20 keywords with a C++23 library where `<generator>` is wanted; current GCC and Clang ship both. - A debugger session: required only for the debugging path. ## Procedure …
Read the whole file at its exact version.
How to install
mdr add outlinedriven/outline-driven-development/cpp-coroutines@sha256:7d7cb6fd641e3a6fThe line at the top of this page pins the label git:20260905.fd53e99, 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_ddglm7xnszh3atwe)
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Versions
The registry has recorded 1 version of this file, committed on Sep 5, 2026.
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 (9198 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
outlinedriven/outline-driven-development · 55 stars · license Apache-2.0 · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ddglm7xnszh3atwe GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/outline-driven-development/cpp-coroutines GET https://markdownregistry.com/api/v1/blob/7d7cb6fd641e3a6f9882fd61159a7bde86ad3f1c77c1091767710d0b1c4b3543
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.