ACSL Annotation Assistant

by ArabelaTso

ACSL Annotation Assistant is a Quality skill for Claude Code, published by ArabelaTso in Skills-4-SE.

247 stars23 forkson ArabelaTso/Skills-4-SEAdded 2026/09/02+4% in starsRepository updated 2026/08/21

View source on GitHub Download repo ZIP

claudeclaude-codeclaude-skillsmetaprogrammingsoftware-developmentsoftware-engineering

Install in seconds

Install ACSL Annotation Assistant

Copy ACSL Annotation Assistant into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/ArabelaTso/Skills-4-SE/tree/main/skills/acsl-annotation-assistant ~/.claude/skills/acsl-annotation-assistant

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/ArabelaTso/Skills-4-SE.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/acsl-annotation-assistant/SKILL.md in ArabelaTso/Skills-4-SE
Installs to: ~/.claude/skills/acsl-annotation-assistant
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1418 skills

What ACSL Annotation Assistant does

ACSL Annotation Assistant creates ACSL contracts, loop invariants, assertions, and memory-safety specifications for C/C++ programs. Use it when preparing code for Frama-C or other formal verification workflows.

ACSL Annotation Assistant is cataloged under Quality on DirSkills. ACSL Annotation Assistant comes from a repository tagged claude, claude-code, claude-skills, metaprogramming and software-development.

Documentation

README

Excerpt

/*@
  requires \valid(array + (0..n-1));
  requires n > 0;
  ensures \result >= 0 && \result < n;
  ensures \forall integer i; 0 <= i < n ==> array[\result] >= array[i];
  assigns \nothing;
*/
int find_max_index(int *array, int n);

2. Loop Annotations

Generate loop invariants, variants, and assigns clauses:

This is the opening of the README. Read the full README on GitHub.

Frequently asked about ACSL Annotation Assistant

What else does ArabelaTso publish alongside ACSL Annotation Assistant?
ACSL Annotation Assistant is one of 25 skills that DirSkills catalogs from ArabelaTso/Skills-4-SE, the repository it ships in. Its siblings there include API Design Assistant, API Documentation Generator and Abstract Domain Explorer. Each one is a separate skill with its own page in this directory, installs the same way ACSL Annotation Assistant does, and is maintained by ArabelaTso in that same repository. The rest of the collection is listed on the ArabelaTso/Skills-4-SE page.
How does ACSL Annotation Assistant compare to other Quality skills?
ACSL Annotation Assistant ranks #1304 by stars among the 1418 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of ACSL Annotation Assistant against them. Open each page to compare what they document and how they install.