analog-agents

Crawl and analyze post-layout parasitic netlists without running SPICE. Answers "what's the effective resistance from node A to node B across this massive R mesh?", "inside the VREFN mesh, which device pins are electrically farthest apart?", "which nets have the worst coupling?", "where does settling bottleneck?" — by parsing the netlist, building a sparse graph, and solving the resistance Laplacian / summing the capacitance network. Format-agnostic: Calibre xRC mr_pp (.pex.netlist), Spectre flat, Spectre with subckt + include chain (.pex / .pxi splits), and Cadence calibreview bundles all produce identical kernel output. TRIGGER whenever the user shares a post-layout / extracted / parasitic netlist and asks about symmetry, parasitic C, parasitic R, coupling, driving-point resistance, within-net R distribution, pin-to-pin R, SAR CDAC analysis, comparator input impedance — even if they don't say "post-layout". Also trigger on filenames ending in .pex.netlist, .pxi, or mentions of xRC, Calibre extraction, RCC m

ADC characterization orchestrator in the analog-agents project. Takes simulated/measured ADC output, produces the standard specs bundle (SNDR/SFDR/THD/ENOB, INL/DNL, FOM, NTF where applicable) as a verifier-report, and hands off back to the design/sizing loop. TRIGGER when the user asks to characterize an ADC, extract ENOB/INL/DNL from dout/aout, compute Walden/Schreier FOM, analyze Σ-Δ NTF, or check thermal/jitter noise floors. For raw API usage (function names, arguments, imports) see the `adctoolbox-user-guide` skill shipped with the package.

Pre-simulation review and Spectre simulation verification for analog circuits. Reviews circuit netlist and testbench, runs simulation, produces margin report. Use after analog-design completes a netlist.

Move, clone, package, archive, split, or reorganize Cadence Virtuoso cells and libraries at the design-data level. Use this skill whenever the user wants to: copy a TB to another library, reproduce a sim independently in a fresh library, hand off a design, prepare a tapeout archive, split one TB cell into several, promote a block between libraries, or enumerate a design's full reference hierarchy. Think of it as the "librarian" for your Virtuoso workspace — it knows which cells belong together, how to move them without breaking config bindings, and how to distinguish project cells from PDK / std-cell / analogLib references.

Self-evolution engine for analog-agents. Reviews completed design sessions to extract lessons, discover new anti-patterns, propose checklist additions, and refine agent prompts. Run after design convergence or project completion. TRIGGER on: "evolve", "what did we learn", "improve skills", "meta-review", "self-improve", or automatically at end of analog-pipeline.

MANDATORY — MUST load this skill when the user mentions: OTA, ADC, PLL, comparator, bandgap, LDO, amplifier, opamp, or any analog/mixed-signal IC design task. Full analog design pipeline: spec -> architecture -> design -> verify -> deliver. Orchestrates analog-decompose, analog-behavioral, analog-design, analog-review, analog-verify, analog-integrate, and analog-wiki skills.

Audit analog circuit netlists for correctness, quality, and risks. Supports both pre-layout (schematic) and post-layout (extracted) netlists. Post-layout mode filters massive parasitic netlists before auditing. Works without EDA. TRIGGER on: "audit", "review netlist", "check this circuit", "design review", "pre-layout", "post-layout", "post-sim", "extracted netlist".

Explore analog design space without simulation. Compare topologies, sweep parameters with hand calculations, find theoretical limits and Pareto tradeoffs. Use for architecture selection, initial sizing, or understanding design space before committing to EDA time. TRIGGER on: "compare topologies", "explore", "design space", "what are my options", "tradeoff analysis", "Pareto".

Interactive analog design learning companion. Explains circuit design decisions step by step with underlying physics. Use when learning analog design, studying a topology, or wanting detailed explanations of design tradeoffs. TRIGGER on: "teach me", "explain", "why does", "how does", "learn", "tutorial", "walk me through", or any educational analog design question.

Cross-model circuit design review with divergence analysis. Sends netlist and rationale to multiple external LLMs for independent audit. Supports minimax-m2.7, qwen-3.6-plus, kimi-k2.5, glm-5.1. Use after analog-design to get independent review before simulation.

Transistor-level circuit design for one analog sub-block. Produces Spectre netlist with hand-calculation rationale. Use when designing a specific circuit block after architecture is defined.

Knowledge graph for analog circuit design. Stores topologies, strategies, corner lessons, anti-patterns, and project cases. Query with consult, add entries, track relationships, archive project cases. Use to build and query design knowledge across projects.

Architect Phase 1: decompose top-level analog spec into sub-block specs. Use when starting a new analog design to select architecture, allocate budgets, define sub-block specs, write testbenches, and create verification plans.

Architect Phase 3: replace behavioral models with verified transistor netlists and run top-level integration verification. Use after all sub-blocks pass L2.

Architect Phase 2: build Verilog-A behavioral models and validate system architecture. Use after analog-decompose to verify top-level specs are achievable before transistor design.