vivado-sim

vivado-sim is a skill for Claude Code, Codex from adeleempurpled290/FPGA-Agent-skills. It costs 220 tokens per session (3,185 once invoked), scanned A, original, GPL-2.0.

A guide for planning and debugging Vivado simulations, which test hardware designs written in languages such as Verilog or VHDL.

In plain words
What is it for?
Use it for behavioral, post-synthesis, or post-implementation timing simulation in Vivado, including timing data added back to the design.
Why use it?
It helps choose the right simulation stage and investigate whether a hardware design works functionally or meets timing after synthesis and implementation.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for behavioral, post-synthesis, or post-implementation timing simulation in Vivado, including timing data added back to the design.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/adeleempurpled290/fpga-agent-skills/vivado-sim
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add adeleempurpled290/FPGA-Agent-skills --skill vivado-sim
Clone the repo
git clone --depth 1 https://github.com/adeleempurpled290/FPGA-Agent-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vivado-sim

README.md
[![agentmods](https://agentmods.dev/badge/skills/adeleempurpled290/fpga-agent-skills/vivado-sim/github.svg)](https://agentmods.dev/skills/adeleempurpled290/fpga-agent-skills/vivado-sim)
Your own site
<a href="https://agentmods.dev/skills/adeleempurpled290/fpga-agent-skills/vivado-sim"><img src="https://agentmods.dev/badge/skills/adeleempurpled290/fpga-agent-skills/vivado-sim/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vivado-sim

Your own site · 80×15
<a href="https://agentmods.dev/skills/adeleempurpled290/fpga-agent-skills/vivado-sim"><img src="https://agentmods.dev/badge/skills/adeleempurpled290/fpga-agent-skills/vivado-sim.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 220 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,185 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00220 $0.03185
Opus 5 $0.00110 $0.01592
Sonnet 5 $0.00044 $0.00637
Haiku 4.5 $0.00022 $0.00318

Measured 10d ago against content hash 01b7f0754742, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

vivado-sim scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (evals/run_eval.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

vivado-sim/SKILL.md · 354 lines

The source is not reproduced here

Licensed GPL-2.0

The repository is licensed GPL-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 354 lines · 220 tokens per session scan A 01b7f0754742

Subscribe to this mod's changes

vivado-sim is a skill published in the GitHub repository adeleempurpled290/FPGA-Agent-skills (35 stars, last pushed 2d ago), licensed GPL-2.0. It adds 220 tokens to every session and 3,185 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

chrome-devtools-cli

Use this skill to write shell scripts or run shell commands to automate tasks in the browser or otherwise use Chrome DevTools via CLI.

ChromeDevTools/chrome-devtools-mcp · 31 tokens

a11y-debugging

Uses Chrome DevTools MCP for accessibility (a11y) debugging and auditing based on web.dev guidelines. Use when testing semantic HTML, ARIA labels, focus states, keyboard navigation, tap targets, and color contrast.

ChromeDevTools/chrome-devtools-mcp · 50 tokens

chrome-devtools

Uses Chrome DevTools via MCP for efficient debugging, troubleshooting and browser automation. Use when debugging web pages, automating browser interactions, analyzing performance, or inspecting network requests. This skill does not apply to --slim mode (MCP configuration).

ChromeDevTools/chrome-devtools-mcp · 55 tokens

chrome-performance-optimizer

Autonomous multi-agent performance optimization loop for Chromium and V8. Supports profile-seeded mode (analyzing Speedometer 3 / JetStream profiles via pprof or Sagacity MCP) and pattern-driven discovery mode (fan-out exploration of Blink and V8 macro-patterns grounded in historical wins and past rejected CLs).…

chromium/chromium · 119 tokens

nullaway

Guide for resolving NullAway static analysis errors. Best practices for: Passing ObservableSupplier/Supplier Dereferencing potentially @Nullable values Adding @NullMarked to Java code.

chromium/chromium · 43 tokens

bisect

Bisect regressions or broken builds in the Chromium repository using deterministic binary search, checking out midpoint commits, syncing dependencies with gclient sync, compiling the target with autoninja, and querying the user for test results until the culprit commit is isolated.

chromium/chromium · 52 tokens