ams-verification

ams-verification is a skill for Claude Code from hdl-tools/analog-chip-design-agents. It costs 75 tokens per session (2,765 once invoked), scanned A, original, MIT.

A workflow for testing chips that combine analog signals with digital control. It covers testbench setup, analog–digital simulation, simplified model testing, and measurement of how much behavior has been tested.

In plain words
What is it for?
Use it to verify mixed-signal blocks, compare detailed circuits with faster simplified models, run repeated tests, and close functional coverage—the record of which behaviors were exercised.
Why use it?
It helps find disagreements between the analog circuit and its digital control across operating conditions, including after a fix.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the analog-design-ams-verification plugin — 1 skill, 1 agent shipped together

Good fit Use it to verify mixed-signal blocks, compare detailed circuits with faster simplified models, run repeated tests, and close functional coverage—the record of which behaviors were exercised.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hdl-tools/analog-chip-design-agents/ams-verification
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 hdl-tools/analog-chip-design-agents --skill ams-verification
Clone the repo
git clone --depth 1 https://github.com/hdl-tools/analog-chip-design-agents

Made for: Claude Code.

Or install analog-design-ams-verification, the plugin that ships this one along with the rest of its 1 skill, 1 agent.

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 ams-verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/hdl-tools/analog-chip-design-agents/ams-verification/github.svg)](https://agentmods.dev/skills/hdl-tools/analog-chip-design-agents/ams-verification)
Your own site
<a href="https://agentmods.dev/skills/hdl-tools/analog-chip-design-agents/ams-verification"><img src="https://agentmods.dev/badge/skills/hdl-tools/analog-chip-design-agents/ams-verification/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 ams-verification

Your own site · 80×15
<a href="https://agentmods.dev/skills/hdl-tools/analog-chip-design-agents/ams-verification"><img src="https://agentmods.dev/badge/skills/hdl-tools/analog-chip-design-agents/ams-verification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,765 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 original 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 $0.00075 $0.02765
Opus 5 $0.00037 $0.01383
Sonnet 5 $0.00015 $0.00553
Haiku 4.5 $0.00007 $0.00277

Measured 11d ago against content hash b0acecd75e08, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ams-verification 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 11d ago.

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.

plugins/ams-verification/skills/ams-verification/SKILL.md · 251 lines

How it starts

The opening of the file, as written. The whole thing — 251 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: AMS Verification

Invocation

  • If invoked by a user presenting a mixed-signal verification task: immediately spawn the analog-chip-design-agents:ams-verification-orchestrator agent and pass the full user request and any available context. Do not execute stages directly.
  • If invoked by the ams-verification-orchestrator mid-flow (including re-validation): do not spawn a new agent. Treat this file as read-only — return the requested stage rules, sign-off criteria, or loop-back guidance.

Spawning the orchestrator from within an active orchestrator run causes recursive delegation and must never happen.

Pre-run Context

Before executing or advising on any stage, read the following if they exist:

  1. memory/ams-verification/knowledge.md — known co-sim sync pitfalls, connect-rule recipes, RNM-vs-SPICE divergence patterns, coverage-closure tactics. Incorporate its guidance.
  2. memory/ams-verification/run_state.md — current run identity for resume-after-interruption.

Purpose

Verify an analog/mixed-signal block against its digital control: build mixed-signal testbenches, define connect rules, run analog-digital co-simulation and real-number-model regressions, and close functional coverage. Six stages with explicit QoR gates. On a mismatch the testbench cannot resolve, this domain opens a fix_request routed by the pipeline-orchestrator to behavioral-modeling (model fault) or circuit-design (circuit fault).


Supported EDA Tools

Open-Source

  • cocotb (python -m cocotb) + ngspice / Xyce — analog-digital co-simulation harness
  • Verilator (verilator) / Icarus (iverilog) — digital + RNM regression
  • Xyce (Xyce) — mixed-signal SPICE for the analog side

Proprietary (detect-only — never installed)

  • Cadence Xcelium AMS / AMS Designer (xrun) — AMS co-sim + coverage
  • Spectre AMS (spectre) — analog engine for AMS
  • Synopsys VCS-AMS / CustomSim (vcs) — AMS co-sim
  • Siemens Symphony + QuestaSim — AMS + digital co-sim
  • AFS-driven co-sim (afs) — fast-SPICE analog engine

Read the full file on GitHub · 251 lines

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. 11d ago First seen · 251 lines · 75 tokens per session scan A b0acecd75e08

Subscribe to this mod's changes

ams-verification is a skill published in the GitHub repository hdl-tools/analog-chip-design-agents (22 stars, last pushed 3mo ago), licensed MIT. It adds 75 tokens to every session and 2,765 once invoked, about $0.0004 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.