Individual skill
abi-and-calling-conventions
Use when explaining System V AMD64, ARM AAPCS, RISC-V psABI, stack frames, variadic calls, or FFI register rules. Not for the Rust FFI binding layer: use rust-ffi.
.devin/skills/abi-and-calling-conventions/SKILL.md
Source commit b0e8ce89a19fac880251dc3ea1babfeb4503a4fe
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Instructions only
- Last checked
- Nov 4, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 55
- Repository last updated
- Sep 28, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- odd Repository topic
- odin Repository topic
- outline Repository topic
- outlines Repository topic
- coding-paradigm Repository topic
- outline-driven-development Repository topic
- claude-plugins Repository topic
- codex-cli Repository topic
- gemini-cli-extensions Repository topic
- outline-driven Repository topic
- engineering Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
SKILL.mdcore · 5,091 bytesSKILL.mdcore · 5,091 bytesSKILL.mdcore · 5,091 bytesagents/openai.yamlasset · 194 bytes
Read excerpt
# ABI and calling conventions
## Contract
| Field | Bound contract |
|---|---|
| Trigger | A question or debugging session needs the register roles, stack alignment, argument passing, return value, or variadic rules of System V AMD64, ARM AAPCS, or the RISC-V psABI. |
| Authority | Read-only. The skill reads source, disassembly, and compiler output and answers in chat. Nothing on disk changes, so there is nothing to roll back. No remote mutation. |
| Side effect | Chat output only. Compiler and disassembler runs write nothing outside stdout. |
| Done | The answer names the argument registers, return registers, stack alignment, callee-saved set, and variadic rule for the named ABI, and points to the compiler output that confirms it. |
## Inputs
- Target ABI (required): System V AMD64, AAPCS64 (AArch64), or RISC-V psABI (RV64). If the user names Windows x64, see the failure table.