analog-topology-select SKILL.md skillA

analog-topology-select from vibeic/vibe-ic is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add vibeic/vibe-ic/analog-topology-select@git:20260831.fdcbf3a

Pins git:20260831.fdcbf3a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
vibeic/vibe-ic
Path
vibe-ic-marketplace/plugins/vibe-ic/skills/analog-topology-select/SKILL.md
Versions recorded
2
Latest version
git:20260831.fdcbf3a, committed Aug 31, 2026
First version recorded
Jun 13, 2026
Size
12,716 bytes
Repository stars
32
License
Apache-2.0

Select circuit topology for each analog block based on specs and PDK constraints. Use when the user says "what topology for the LDO", "analog topology", "circuit architecture", or at Step A2 of the analog track.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Analog Topology Select

Given a block's `spec.json` (from `analog-spec-extract`) and PDK device characteristics, recommends a circuit topology. This is the highest-leverage decision in analog design — wrong topology wastes 10+ sizing iterations; right topology converges in 1-2.

## When to use

- Step A2 of the analog track
- After `analog-spec-extract` has produced spec.json per block
- When the user asks "what circuit should I use for this LDO?"

## Inputs

1. `analog/<block>/spec.json` — from `analog-spec-extract`
2. PDK device characteristics — do NOT retype Vth/supply constants here.
   They are a single deterministic source-of-truth in
   `programs/pdk_registry.json` under the per-PDK `analog_device_params`
   block (`vth_n_v`, `vth_p_v`, `nominal_supply_v`). Look them up by PDK
   name; the A2 gate (`programs/analog_a2_topology_select_check.py`) and
   `analog-sizing-loop` consume the same registry field.
   (canonical reference: GF180 nfet≈0.65V/pfet≈0.70V/3.3V; SKY130 nfet≈0.45V/pfet≈0.47V/1.8V.)
2b. The MEASURED half of that same field (vibe-ic#1962) —
   `analog_device_params.measured`, read with
   `programs/pdk_analog_device_params.py` and produced by
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vibeic/vibe-ic/analog-topology-select@sha256:a434562cdd1e115f

The line at the top of this page pins the label git:20260831.fdcbf3a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_yf5kf2ua7eb2iqp5.svg)](https://markdownregistry.com/a/art_yf5kf2ua7eb2iqp5)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jun 13, 2026 and Aug 31, 2026, about one every 79 days.

versioncommittedcommitsizeaudit
git:20260831.fdcbf3a latest2026-08-31 fdcbf3a 12,716 BA view · diff
git:20260613.86cacb42026-06-13 86cacb4 11,427 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12716 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

vibeic/vibe-ic · 32 stars · license Apache-2.0 · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yf5kf2ua7eb2iqp5
GET https://markdownregistry.com/api/v1/resolve?ref=vibeic/vibe-ic/analog-topology-select
GET https://markdownregistry.com/api/v1/blob/a434562cdd1e115ff0b9fdf0654ba1d12469d1d1a595771388b8b13e4ff16d2d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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