Agent skill

Abaqus Topology Optimization

by Cai-aa in Cai-aa/CAE-Agent-Hub

Complete workflow for topology optimization using Tosca. An agent skill from Cai-aa/CAE-Agent-Hub.

MITAuto-check passed

Install Abaqus Topology Optimization

skills CLI
$ npx skills add Cai-aa/CAE-Agent-Hub --skill abaqus-topology-optimization -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Cai-aa/CAE-Agent-Hub abaqus-topology-optimization --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Cai-aa/CAE-Agent-Hub.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Skill/abaqus/optimization/abaqus-topology-optimization .claude/skills/abaqus-topology-optimization && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
abaqus-topology-optimization
GitHub stars
1k
Token cost
~1.2k tokens
SKILL.md length
519 words
Files
4
Skills in repo
57
Repo updated
First seen
Licence
MIT

At a glance

Complete workflow for topology optimization using Tosca. An agent skill from Cai-aa/CAE-Agent-Hub.

  • Works in 3 steps: Setup Base Model → Configure Optimization → Run and Post-Process
  • Minimize weight while maintaining stiffness
  • SKILL.md covers When to Use This Skill, Important: License Required, Prerequisites and Workflow Steps, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Abaqus Topology Optimization is an agent skill from Cai-aa/CAE-Agent-Hub. Complete workflow for topology optimization using Tosca. Use to minimize weight while maintaining stiffness. Requires full Abaqus license (not Learning Edition).

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files (for example `UPSTREAM.md` and `metadata.json`).

The licence is MIT.

When your agent uses it

  • Minimize weight while maintaining stiffness

Example prompts

  • “/abaqus-topology-optimization”

Requirements

  • Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash(abaqus:*), Skill

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Setup Base Model
  2. Configure Optimization
  3. Run and Post-Process

What it can do on your machine

Read from SKILL.md and the folder at commit 194ef49. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit
    • Glob
    • Grep
    • Bash(abaqus:*)
    • Skill

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Abaqus Topology Optimization loads about 1.2k tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 519 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Cai-aa/CAE-Agent-Hub at commit 194ef49, republished under its MIT licence (© Cai-aa). 519 words, ~1,209 tokens.

Download SKILL.mdSave it as .claude/skills/abaqus-topology-optimization/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
abaqus-topology-optimization
description
Complete workflow for topology optimization using Tosca. Use to minimize weight while maintaining stiffness. Requires full Abaqus license (not Learning Edition).
allowed-tools
Read, Write, Edit, Glob, Grep, Bash(abaqus:*), Skill

Abaqus Topology Optimization Workflow

Complete workflow for topology optimization - determining optimal material distribution to minimize weight while maintaining structural performance.

When to Use This Skill

Triggers: topology optimization, minimize weight, lightweight design, organic structure, generative design, where to remove material, material efficiency, design for additive

USE for: Minimize weight while maintaining stiffness, maximize stiffness for given weight, generate organic load-carrying structures

Do NOT use for: Shape optimization (surface only) -> /abaqus-shape-optimization, Learning Edition users -> Tosca requires full license

Important: License Required

Topology optimization requires a full Abaqus license with Tosca module. NOT available in Learning Edition.

Prerequisites

  1. Working static analysis that converges
  2. Design space defined (bounding volume for material)
  3. Clear objective (usually max stiffness at target weight)
  4. Known load cases and boundary conditions

Workflow Steps

Phase 1: Setup Base Model
  1. /abaqus-geometry - Design space with partitions for frozen regions
  2. /abaqus-material - Elastic properties + density (required for TO)
  3. /abaqus-mesh - Fine mesh (2-5mm typical for TO)
  4. /abaqus-bc - Fixed supports (these regions become frozen)
  5. /abaqus-load - Applied forces (these regions become frozen)
  6. /abaqus-step - Static step for stiffness optimization
Phase 2: Configure Optimization

Use /abaqus-optimization for detailed API patterns.

  1. Create TopologyTask with SIMP interpolation
  2. Define design responses (volume, strain energy)
  3. Set objective function (minimize compliance)
  4. Add constraints (volume <= target fraction)
  5. Define frozen regions (BC and load attachment areas)
  6. Add manufacturing constraints (min member size)
Phase 3: Run and Post-Process
  1. /abaqus-job - Submit OptimizationProcess
  2. /abaqus-odb - View density distribution
  3. /abaqus-export - STL export at density threshold (0.3-0.5 typical)

Key Decisions

GoalObjectiveConstraint
Stiffest at weightMinimize complianceVolume <= X%
Lightest that worksMinimize volumeCompliance <= Y
Avoid resonanceMaximize frequencyVolume <= X%

Most common: Minimize compliance with volume constraint at 30%.

Volume Fraction
FractionUse Case
20-30%Aggressive (aerospace)
30-40%Balanced (general)
40-50%Conservative (safety-critical)
Show full SKILL.md (216 more words)Show less
Manufacturing Constraints
ConstraintWhen to Use
Minimum member sizeAlways (3-5mm typical)
Draw directionCasting, molding
Symmetry planeBalanced loads, aesthetics
Overhang angleAdditive manufacturing

What to Ask User

Critical:

  • Design space: "What is the bounding volume where material can exist?"
  • Frozen regions: "Which areas must remain solid? (BC/load attachment)"
  • Volume fraction: "What percentage of material should remain? (20-50%)"
  • Loads and BCs: "What loads and supports act on the structure?"

With Defaults:

  • Objective: Min compliance (change if stress/frequency is primary)
  • Min member size: 3mm (adjust for manufacturing)
  • Material: Steel (if not specified)
  • Max iterations: 50 (increase if not converging)
  • SIMP penalty: 3.0 (higher for sharper boundaries)

Validation

StageCheck
Base modelStatic analysis runs, results sensible
After iteration 5Objective decreasing, no disconnection
ConvergenceObjective stable (< 0.1% change)
Final designLoad path intact, no floating regions

Troubleshooting

IssueSolution
Checkerboard patternAdd min member size constraint
Not convergingRelax volume fraction, check frozen regions
Disconnected regionsAdd more frozen regions along load path
Takes foreverCoarsen mesh, reduce iterations
License errorRequires full Abaqus with Tosca

Code Patterns

For API syntax and code examples, see:

  • /abaqus-optimization - Task, response, objective, constraint API
  • references/common-patterns.md - Complete TO code patterns
  • /abaqus-optimization - Base optimization API details
  • /abaqus-static-analysis - Required before optimization
  • /abaqus-shape-optimization - Alternative for surface-only changes
  • /abaqus-export - Export optimized geometry

© Cai-aa, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files in Skill/abaqus/optimization/abaqus-topology-optimization of Cai-aa/CAE-Agent-Hub.

  • SKILL.md
  • UPSTREAM.md
  • UPSTREAM_LICENSE
  • metadata.json

Open the folder on GitHubat commit 194ef49

Compare with similar skills

Abaqus Topology Optimization next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Abaqus Topology Optimization compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Abaqus Topology Optimization this skillCai-aa/CAE-Agent-Hub1k—~1.2kAutomated safety check: PassMIT
Minimalismsickn33/agentic-awesome-skills47k1 repos~2.2kAutomated safety check: PassMIT
Topology Authoringnetdata/netdata81k—~3.9kAutomated safety check: PassGPL-3.0
Agent Topology Optimizerruvnet/ruflo74k2 repos~6.2kAutomated safety check: PassMIT
Page Weightthedaviddias/Front-End-Checklist74k—~428Automated safety check: PassMIT
Video Template Frame Build Minimalnexu-io/open-design100k—~371Automated safety check: PassApache-2.0

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Questions about Abaqus Topology Optimization

What does Abaqus Topology Optimization do?

Complete workflow for topology optimization using Tosca. An agent skill from Cai-aa/CAE-Agent-Hub. Abaqus Topology Optimization is an agent skill from Cai-aa/CAE-Agent-Hub. Complete workflow for topology optimization using Tosca.

When should I use Abaqus Topology Optimization?

Abaqus Topology Optimization fits situations like: minimize weight while maintaining stiffness.

How do I install Abaqus Topology Optimization in Claude Code?

Run `npx skills add Cai-aa/CAE-Agent-Hub --skill abaqus-topology-optimization -a claude-code`. Or copy the skill folder (Skill/abaqus/optimization/abaqus-topology-optimization in Cai-aa/CAE-Agent-Hub) into .claude/skills/abaqus-topology-optimization in your project. Claude Code loads it when a task matches its description.

How do I install Abaqus Topology Optimization in Codex?

Run `npx skills add Cai-aa/CAE-Agent-Hub --skill abaqus-topology-optimization -a codex`. Or copy the skill folder (Skill/abaqus/optimization/abaqus-topology-optimization in Cai-aa/CAE-Agent-Hub) into .agents/skills/abaqus-topology-optimization in your project. Codex loads it when a task matches its description.

Can I use Abaqus Topology Optimization in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Cai-aa/CAE-Agent-Hub --skill abaqus-topology-optimization -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/abaqus-topology-optimization, .gemini/skills/abaqus-topology-optimization, .github/skills/abaqus-topology-optimization and .opencode/skills/abaqus-topology-optimization in your project.

What does Abaqus Topology Optimization need to run?

SKILL.md names no scripts, command-line tools or credentials: Abaqus Topology Optimization is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash(abaqus:*), Skill.

Does Abaqus Topology Optimization access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Abaqus Topology Optimization safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Abaqus Topology Optimization use?

Abaqus Topology Optimization is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Abaqus Topology Optimization use?

About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Abaqus Topology Optimization?

Skills that share tags, products or a category with Abaqus Topology Optimization: Minimalism (sickn33/agentic-awesome-skills, 47k stars), Topology Authoring (netdata/netdata, 81k stars), Agent Topology Optimizer (ruvnet/ruflo, 74k stars) and Page Weight (thedaviddias/Front-End-Checklist, 74k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Abaqus Topology Optimization?

Cai-aa (a GitHub user) maintains it in Cai-aa/CAE-Agent-Hub, which has 1,015 GitHub stars. The repository holds 57 skills in this directory. The repository was last updated on September 30, 2026.

Source: Cai-aa/CAE-Agent-Hub on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.