Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/vibeic/vibe-icnpx agentmods add skills/vibeic/vibe-ic/analog-topology-selectWrote 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.
[](https://agentmods.dev/skills/vibeic/vibe-ic/analog-topology-select)<a href="https://agentmods.dev/skills/vibeic/vibe-ic/analog-topology-select"><img src="https://agentmods.dev/badge/skills/vibeic/vibe-ic/analog-topology-select/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.
<a href="https://agentmods.dev/skills/vibeic/vibe-ic/analog-topology-select"><img src="https://agentmods.dev/badge/skills/vibeic/vibe-ic/analog-topology-select.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium analysis-evasion · line 1 Suspicious Unicode normalization or mixed-script contentFix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.03219 |
| Opus 5 | $0.00026 | $0.01610 |
| Sonnet 5 | $0.00010 | $0.00644 |
| Haiku 4.5 | $0.00005 | $0.00322 |
Grade A, and why
analog-topology-select 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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-extracthas produced spec.json per block - When the user asks "what circuit should I use for this LDO?"
Inputs
analog/<block>/spec.json— fromanalog-spec-extract- PDK device characteristics — do NOT retype Vth/supply constants here.
They are a single deterministic source-of-truth in
programs/pdk_registry.jsonunder the per-PDKanalog_device_paramsblock (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) andanalog-sizing-loopconsume 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 withprograms/pdk_analog_device_params.pyand produced byprograms/pdk_analog_characterize.py. It carries what the declared constants above do not:k_prime_n_ua_per_v2/k_prime_p_ua_per_v2, the threshold the square-law fit implies,vgs_at_id_*_v,rsheet_ohm_per_sq(+r_end_ohm) andcap_area_ff_per_um2(+cap_perim_ff_per_um), per process corner, each attributed to the primitive and the model-lib section it was measured on and each carrying the fit residual that says how well the model describes the device.analog_a2_topology_emitputs these intotopology.jsonaspdk_measured_params, so a librarydevice_param_exprsentry may be written against one of them by name. A family with NO record quotes nothing and says so — never a default, never a neighbouring family's number. - Constraints: power budget, area budget, accuracy requirements
What ships with it
2 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.
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.
- 8d ago Changed · +19 lines a434562cdd1e
- 12d ago First seen · 217 lines · 52 tokens per session scan A 621f9a516761
analog-topology-select is a skill published in the GitHub repository vibeic/vibe-ic (23 stars, last pushed today), licensed Apache-2.0. It adds 52 tokens to every session and 3,219 once invoked, about $0.0003 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.
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